<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Zhang, K.</style></author><author><style face="normal" font="default" size="100%">Liu, H.</style></author><author><style face="normal" font="default" size="100%">Li, Y.</style></author><author><style face="normal" font="default" size="100%">Xu, H.</style></author><author><style face="normal" font="default" size="100%">Shen, J.</style></author><author><style face="normal" font="default" size="100%">Rhome, J.R.</style></author><author><style face="normal" font="default" size="100%">Smith, T.J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Role of Mangroves in Attenuating Storm Surges</style></title><secondary-title><style face="normal" font="default" size="100%">Estuarine, Coastal and Shelf Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2012-62937</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xiang, W.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison of flow matrix and Markov matrix</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">PIE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><publisher><style face="normal" font="default" size="100%">Clark University</style></publisher><pub-location><style face="normal" font="default" size="100%">Worcester, MA</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2011-86962</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Zhu, G. R</style></author><author><style face="normal" font="default" size="100%">Porter, J. H.</style></author><author><style face="normal" font="default" size="100%">Xu, Xue-gong</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thirty years of US Long-Term Ecological Research: Characteristics, results, and lessons learned of - taking the Virginia Coastal Reserve as an example</style></title><secondary-title><style face="normal" font="default" size="100%">Chinese Journal of Applied Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><volume><style face="normal" font="default" size="100%">22</style></volume><pages><style face="normal" font="default" size="100%">1615-1622</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In order to observe and understand long-term and large-scale ecological changes, the US National Science Foundation initiated a Long-Term Ecological Research (LTER) program in 1980. Over the past 30 years, theUS LTER program has achieved advances in ecological and social science research, and in the development of site-based research infrastructure. This paper attributed the success of the program to five characteristics,i. e., 1) consistency of research topics and data across the network, 2) long-term time scale ofboth the research and the program, 3) flexibility in research content and funding procedures, 4) growth of LTER to include internationalpartners, new disciplines such as social science, advanced research methods, and cooperation among sites, and 5) sharing ofdata and educational resources. TheVirginia Coast Reserve LTER site was taken as an example to illustrate how theUS LTER works at site leve.l Some suggestionsweremade on the China long-term ecological research, including strengthening institution construction, improving network and inter-site cooperation, emphasizing data quality, managemen,t and sharing, reinforcing multidisciplinary cooperation, and expanding public influence.</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2011-86163</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xia, Yang</style></author><author><style face="normal" font="default" size="100%">Moore, D.I.</style></author><author><style face="normal" font="default" size="100%">Collins, Scott L.</style></author><author><style face="normal" font="default" size="100%">Muldavin, E.H.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aboveground production and species richness of annuals in Chihuahuan Desert grassland and shrubland plant communities</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">SEV</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><volume><style face="normal" font="default" size="100%">74</style></volume><pages><style face="normal" font="default" size="100%">378-385</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2010-85712</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Occurrence, distribution and origin of C30 cyclobotryococcenes in a subtropical wetland/estuarine ecosystem</style></title><secondary-title><style face="normal" font="default" size="100%">Chemosphere</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><volume><style face="normal" font="default" size="100%">81</style></volume><pages><style face="normal" font="default" size="100%">918-924</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">7</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2010-83324</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Collins, Scott L.</style></author><author><style face="normal" font="default" size="100%">Fargione, J. E.</style></author><author><style face="normal" font="default" size="100%">Crenshaw, CL</style></author><author><style face="normal" font="default" size="100%">Nonaka, E.</style></author><author><style face="normal" font="default" size="100%">Elliot, J.R.</style></author><author><style face="normal" font="default" size="100%">Xia, Yang</style></author><author><style face="normal" font="default" size="100%">Pockman,  William T.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Rapid plant community responses during the summer monsoon to nighttime warming in a northern Desert Chihuahuan Desert grassland</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">SEV</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><volume><style face="normal" font="default" size="100%">74</style></volume><pages><style face="normal" font="default" size="100%">611-617</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2010-85715</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hogsden, Kristy L.</style></author><author><style face="normal" font="default" size="100%">Xenopoulos, Marguerite A.</style></author><author><style face="normal" font="default" size="100%">Rusak, James A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Asymmetrical food web responses in trophic-level richness, biomass, and function following lake acidification.</style></title><secondary-title><style face="normal" font="default" size="100%">Aquatic Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">NTL</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">591-606</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2009-82744</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Simoneit, B.R.T.</style></author><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Neto, R.</style></author><author><style face="normal" font="default" size="100%">Cloutier, J.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photochemical alteration of 3-oxygenated triterpenoids: Implications for the origin of 3,4-seco-triterpenoids in sediments</style></title><secondary-title><style face="normal" font="default" size="100%">Chemosphere</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><volume><style face="normal" font="default" size="100%">74</style></volume><pages><style face="normal" font="default" size="100%">543-550</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2009-83315</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mayewski, P</style></author><author><style face="normal" font="default" size="100%">Bromwich, D</style></author><author><style face="normal" font="default" size="100%">Campbell, H</style></author><author><style face="normal" font="default" size="100%">Hamilton, G</style></author><author><style face="normal" font="default" size="100%">Lyons, W</style></author><author><style face="normal" font="default" size="100%">Maasch, K</style></author><author><style face="normal" font="default" size="100%">Aoki, S</style></author><author><style face="normal" font="default" size="100%">Xiao, C</style></author><author><style face="normal" font="default" size="100%">van Ommen, T</style></author><author><style face="normal" font="default" size="100%">Meredith, M</style></author><author><style face="normal" font="default" size="100%">Summerhayes, C</style></author><author><style face="normal" font="default" size="100%">Turner, J</style></author><author><style face="normal" font="default" size="100%">Worby, A</style></author><author><style face="normal" font="default" size="100%">Barrett, P</style></author><author><style face="normal" font="default" size="100%">Casassa, G</style></author><author><style face="normal" font="default" size="100%">Bertler, N</style></author><author><style face="normal" font="default" size="100%">Bracegirdle, T</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">State of the Antarctic and the Southern Ocean climate system,</style></title><secondary-title><style face="normal" font="default" size="100%">Review of Geophysics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">MCM</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><volume><style face="normal" font="default" size="100%">47</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2009-83682</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Troy, A.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Xiong, H.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Geodemographic segmentation</style></title><secondary-title><style face="normal" font="default" size="100%">Encyclopedia of geographical information science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">BES</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><publisher><style face="normal" font="default" size="100%">Springer-Verlag</style></publisher><pub-location><style face="normal" font="default" size="100%">New York</style></pub-location><pages><style face="normal" font="default" size="100%">347-355</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2008-85575</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">White, M.S.</style></author><author><style face="normal" font="default" size="100%">Xenopoulos, M. A.</style></author><author><style face="normal" font="default" size="100%">Hogsden, K.L.</style></author><author><style face="normal" font="default" size="100%">Metcalfe, R.A.</style></author><author><style face="normal" font="default" size="100%">Dillon, P.J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Natural lake level fluctuation and associated concordance with water quality and aquatic communities within small lakes of the Laurentian Great Lakes region</style></title><secondary-title><style face="normal" font="default" size="100%">Hydrobiologia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">NTL</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><volume><style face="normal" font="default" size="100%">613</style></volume><pages><style face="normal" font="default" size="100%">21-31</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2008-82746</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schlatter, D</style></author><author><style face="normal" font="default" size="100%">Fubuh, A</style></author><author><style face="normal" font="default" size="100%">Xiao, K</style></author><author><style face="normal" font="default" size="100%">Hernandez, D</style></author><author><style face="normal" font="default" size="100%">Hobbie, S</style></author><author><style face="normal" font="default" size="100%">Kinkel, L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Resource amendments influence density and competitive phenotypes of Streptomyces in soil (Accepted)</style></title><secondary-title><style face="normal" font="default" size="100%">Microbial Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CDR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2008-83149</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">McClatchie, S.</style></author><author><style face="normal" font="default" size="100%">Gottschalk, J.</style></author><author><style face="normal" font="default" size="100%">Heureux, M.</style></author><author><style face="normal" font="default" size="100%">Xue, Y.</style></author><author><style face="normal" font="default" size="100%">Peterson, W. T.</style></author><author><style face="normal" font="default" size="100%">Emmett, R.</style></author><author><style face="normal" font="default" size="100%">Collins, C.</style></author><author><style face="normal" font="default" size="100%">Gaxiola-Castro, G.</style></author><author><style face="normal" font="default" size="100%">Durazo, R.</style></author><author><style face="normal" font="default" size="100%">Kahru, M.</style></author><author><style face="normal" font="default" size="100%">Mitchell, B. G.</style></author><author><style face="normal" font="default" size="100%">Goericke, R.</style></author><author><style face="normal" font="default" size="100%">Hyrenbach, K. D.</style></author><author><style face="normal" font="default" size="100%">Sydeman, W. J.</style></author><author><style face="normal" font="default" size="100%">Bradley, R. W.</style></author><author><style face="normal" font="default" size="100%">Warzybok, P.</style></author><author><style face="normal" font="default" size="100%">Bjorkstedt, E.</style></author><author><style face="normal" font="default" size="100%">Koslow, J. A.</style></author><author><style face="normal" font="default" size="100%">Schwing, F. B.</style></author><author><style face="normal" font="default" size="100%">Bograd, S. J.</style></author><author><style face="normal" font="default" size="100%">Charter, R.</style></author><author><style face="normal" font="default" size="100%">Watson, W.</style></author><author><style face="normal" font="default" size="100%">Lo, N.</style></author><author><style face="normal" font="default" size="100%">Hill, K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The State of the California Current, 2007-2008: La Nina Conditions and their Effects on the Ecosystem</style></title><secondary-title><style face="normal" font="default" size="100%">California Cooperative Oceanic Fisheries Investigations Reports</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">39-76</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2008-84766</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Lipid biomarkers in suspended particulates from a subtropical estuary: Assessment of seasonal changes in sources and transport of organic matter</style></title><secondary-title><style face="normal" font="default" size="100%">Marine Environmental Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><volume><style face="normal" font="default" size="100%">64</style></volume><pages><style face="normal" font="default" size="100%">666-678</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2007-85847</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Holmes, C.W.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Paleoenvironmental assessment of recent environmental changes in Florida Bay, USA: A biomarker based study</style></title><secondary-title><style face="normal" font="default" size="100%">Estuarine, Coastal and Shelf Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><volume><style face="normal" font="default" size="100%">73</style></volume><pages><style face="normal" font="default" size="100%">201-210</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1-2</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2007-81731</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Baker, L. A.</style></author><author><style face="normal" font="default" size="100%">Johnson, P.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Trends in groundwater nitrate contamination in the Phoenix, Arizona region</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">CAP</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">49-56</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2007-93185</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chapin III, F.S.</style></author><author><style face="normal" font="default" size="100%">Nilsson, C.</style></author><author><style face="normal" font="default" size="100%">Barrett, S.</style></author><author><style face="normal" font="default" size="100%">Berkes, F.</style></author><author><style face="normal" font="default" size="100%">Crepin, A.S.</style></author><author><style face="normal" font="default" size="100%">Danell, K.</style></author><author><style face="normal" font="default" size="100%">Rosswall, T.</style></author><author><style face="normal" font="default" size="100%">Starrett, D.</style></author><author><style face="normal" font="default" size="100%">Xepapadeas, A.</style></author><author><style face="normal" font="default" size="100%">Zimov, S.A.</style></author><author><style face="normal" font="default" size="100%">Hoel, M.</style></author><author><style face="normal" font="default" size="100%">Carpenter, S.R.</style></author><author><style face="normal" font="default" size="100%">Lubchenco, J.</style></author><author><style face="normal" font="default" size="100%">Walker, B.H.</style></author><author><style face="normal" font="default" size="100%">Callaghan, T. V.</style></author><author><style face="normal" font="default" size="100%">Folke, C.</style></author><author><style face="normal" font="default" size="100%">Levin, S. A.</style></author><author><style face="normal" font="default" size="100%">Mäler, K..</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Building Resilience and Adaption to Manage Arctic Change</style></title><secondary-title><style face="normal" font="default" size="100%">AMBIO: A Journal of the Human Environment</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">BNZ</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">35</style></volume><pages><style face="normal" font="default" size="100%">198-202</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2006-77067</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, Y.</style></author><author><style face="normal" font="default" size="100%">Xu, M.</style></author><author><style face="normal" font="default" size="100%">Zou, Xiaoming</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of nutrient additions on ecosystem carbon cycle in a Puerto Rican tropical wet forest</style></title><secondary-title><style face="normal" font="default" size="100%">Global Change Biology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">LUQ</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">1-10</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2006-70718</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Alpert, P</style></author><author><style face="normal" font="default" size="100%">Niyogi, D</style></author><author><style face="normal" font="default" size="100%">Pielke Sr, RA</style></author><author><style face="normal" font="default" size="100%">Eastman, JL</style></author><author><style face="normal" font="default" size="100%">Xue, YK</style></author><author><style face="normal" font="default" size="100%">Raman, S</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Evidence for carbon dioxide and moisture interactions from the leaf cell up to global scales: Perspective on human-caused climate change</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">SGS</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">54</style></volume><pages><style face="normal" font="default" size="100%">202-208</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2006-84150</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dobson, Andrew</style></author><author><style face="normal" font="default" size="100%">Wolters, Volkmar</style></author><author><style face="normal" font="default" size="100%">Wall, Diana</style></author><author><style face="normal" font="default" size="100%">Xenopoulos, Marguerite A.</style></author><author><style face="normal" font="default" size="100%">Lodge, David M.</style></author><author><style face="normal" font="default" size="100%">Alder, Jackie</style></author><author><style face="normal" font="default" size="100%">Cumming, Graeme S.</style></author><author><style face="normal" font="default" size="100%">Keymer, Juan</style></author><author><style face="normal" font="default" size="100%">McGlade, Jacquie</style></author><author><style face="normal" font="default" size="100%">Mooney, Hal</style></author><author><style face="normal" font="default" size="100%">Rusak, James A.</style></author><author><style face="normal" font="default" size="100%">Sala, Osvaldo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Habitat loss, trophic collapse and the decline of ecosystem services</style></title><secondary-title><style face="normal" font="default" size="100%">Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">JRN</style></keyword><keyword><style  face="normal" font="default" size="100%">NTL</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">87</style></volume><pages><style face="normal" font="default" size="100%">1915-1924</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">8</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2006-69905</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, Y.</style></author><author><style face="normal" font="default" size="100%">Xu, M.</style></author><author><style face="normal" font="default" size="100%">Zou, Xiaoming</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Heterotrophic soil respiration in relation to environmental factors and microbial biomass in two tropical wet forests</style></title><secondary-title><style face="normal" font="default" size="100%">Plant and Soil</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">LUQ</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">281</style></volume><pages><style face="normal" font="default" size="100%">193-201</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2006-70749</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ellis, E. C.</style></author><author><style face="normal" font="default" size="100%">Wang, H.</style></author><author><style face="normal" font="default" size="100%">Xiao, H. S.</style></author><author><style face="normal" font="default" size="100%">Peng, K.</style></author><author><style face="normal" font="default" size="100%">Liu, X. P.</style></author><author><style face="normal" font="default" size="100%">Li, S. C.</style></author><author><style face="normal" font="default" size="100%">Ouyang, H.</style></author><author><style face="normal" font="default" size="100%">Cheng, X.</style></author><author><style face="normal" font="default" size="100%">Yang, L. Z.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Measuring long-term ecological changes in densely populated landscapes using current and historical high resolution imagery</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">BES</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">100</style></volume><pages><style face="normal" font="default" size="100%">457-473</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Long-term ecological changes within densely populated landscapes account for a growing share of global environmental change. Measuring the causes and consequences of these changes remains a challenge because of their fine spatial scale and complexity. Here, we measure long-term ecological changes, circa 1950 to 2002, within six 1 km2 sites in densely populated rural China and in urban and suburban Baltimore, Maryland, USA using a standardized procedure for fine-scale feature-based ecological mapping from high spatial resolution (? 1 m) imagery. The median size of ecologically distinct landscape features (ecotopes) mapped by this procedure was just 520 m2, though size, count and perimeter of features varied considerably both within and between sites. Land management and vegetation cover changed substantially, over 28% to 87% of site areas, but most of this change occurred in small patches with area &lt; 4000 m2. Landscape complexity also increased over time by the fragmentation of landscapes into a larger number of smaller features with an increasing diversity of ecotope classes. Detailed analysis of fine-scale landscape transformations helped identify the causes and consequences of ecologically significant changes within and across sites, including unexpected increases in perennial vegetation cover and the linkage of impervious surface area with population density. These and other results demonstrate the general utility of anthropogenic ecotope mapping as a tool for cross-site comparison and sampled regional estimates of long-term ecological changes within densely populated landscapes.</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2006-85315</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Mead, R.N.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A molecular marker based assessment of sedimentary organic matter sources and distributions in Florida Bay</style></title><secondary-title><style face="normal" font="default" size="100%">Hydrobiologia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">569</style></volume><pages><style face="normal" font="default" size="100%">179-192</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2006-62936</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author><author><style face="normal" font="default" size="100%">Wachnicka, A.</style></author><author><style face="normal" font="default" size="100%">Gaiser, E.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Occurrence of C25 highly branched isoprenoids in Florida Bay: Paleoenvironmental indicators of diatom-derived organic matter inputs</style></title><secondary-title><style face="normal" font="default" size="100%">Organic Geochemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><volume><style face="normal" font="default" size="100%">37</style></volume><pages><style face="normal" font="default" size="100%">847-859</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">7</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2006-81730</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sala, O.</style></author><author><style face="normal" font="default" size="100%">Zaitsev, A.S.</style></author><author><style face="normal" font="default" size="100%">Polo, M.G.</style></author><author><style face="normal" font="default" size="100%">Gomes, I.</style></author><author><style face="normal" font="default" size="100%">Queiroz, C.</style></author><author><style face="normal" font="default" size="100%">Rusak, James A.</style></author><author><style face="normal" font="default" size="100%">van Vuuren, D.</style></author><author><style face="normal" font="default" size="100%">Pereira, H.M.</style></author><author><style face="normal" font="default" size="100%">Lodge, D.M.</style></author><author><style face="normal" font="default" size="100%">Alder, J.</style></author><author><style face="normal" font="default" size="100%">Cumming, G.S.</style></author><author><style face="normal" font="default" size="100%">Dobson, A.</style></author><author><style face="normal" font="default" size="100%">Wolters, V</style></author><author><style face="normal" font="default" size="100%">Xenopoulos, M. A.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Zurek, Monika B.</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Biodiversity across scenarios</style></title><secondary-title><style face="normal" font="default" size="100%">Ecosystems and human well-being : scenarios, volume 2</style></secondary-title><tertiary-title><style face="normal" font="default" size="100%">Millennium Ecosystem Assessment Series</style></tertiary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">NTL</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><publisher><style face="normal" font="default" size="100%">Island Press</style></publisher><pub-location><style face="normal" font="default" size="100%">Washington, DC</style></pub-location><volume><style face="normal" font="default" size="100%">2</style></volume><pages><style face="normal" font="default" size="100%">375-408</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2005-69869</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, Y.</style></author><author><style face="normal" font="default" size="100%">Xu, M.</style></author><author><style face="normal" font="default" size="100%">Zou, Xiaoming</style></author><author><style face="normal" font="default" size="100%">Zhang, Y.Q.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparing soil organic carbon dynamics in plantation and secondary forest in wet tropics in Puerto Rico</style></title><secondary-title><style face="normal" font="default" size="100%">Global Change Biology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">LUQ</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">239-248</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">2</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2005-70672</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xiao, X</style></author><author><style face="normal" font="default" size="100%">Ojima, DS</style></author><author><style face="normal" font="default" size="100%">Parton, WJ</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Long-term dynamics of Aneurolepidum chinense and Stipa grandis steppe ecosystem simulation of CENTURY model</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">SGS</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2005-68350</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Yunping</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Origin, transport and fate of organic matter in Florida Bay: A biomarker record of historical environmental changes</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><publisher><style face="normal" font="default" size="100%">Florida International University</style></publisher><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2005-93217</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, Yunping</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Origin, transport and fate of organic matter in Florida Bay: A biomarker record of historical environmental changes</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><publisher><style face="normal" font="default" size="100%">Florida International University</style></publisher><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2005-62964</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mead, R.N.</style></author><author><style face="normal" font="default" size="100%">Xu, Y.</style></author><author><style face="normal" font="default" size="100%">Chong, J.</style></author><author><style face="normal" font="default" size="100%">Jaffe, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sedimentary organic matter source assessment in a sub-tropical wetland and estuarine environment using the molecular distribution and carbon isotopic composition of n-alkanes</style></title><secondary-title><style face="normal" font="default" size="100%">Organic Geochemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><volume><style face="normal" font="default" size="100%">36</style></volume><pages><style face="normal" font="default" size="100%">363-370</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">3</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2005-86914</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, Y.</style></author><author><style face="normal" font="default" size="100%">Xu, M.</style></author><author><style face="normal" font="default" size="100%">Zou, Xiaoming</style></author><author><style face="normal" font="default" size="100%">Xia, Yang</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Soil respiration and fungal and bacterial biomass in a plantation and a secondary forest in Puerto Rico</style></title><secondary-title><style face="normal" font="default" size="100%">Plant and Soil</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">LUQ</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><volume><style face="normal" font="default" size="100%">268</style></volume><pages><style face="normal" font="default" size="100%">151-160</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2005-70671</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>6</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jørgensen, S.E.</style></author><author><style face="normal" font="default" size="100%">Costanza, R.</style></author><author><style face="normal" font="default" size="100%">Xu, F. 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