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HFR

Harvard Forest LTER

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USDA Forest Service Scientist Kevin Dodds examines the tree canopy in an ALB-infested forest in West Boylston, MA. Photo by Dave Orwig, Harvard Forest. Photo courtesy: Dave Orwig, Harvard Forest
HFR
The Harvard Forest is located in a rural setting in north-central Massachusetts about 70 miles west of Boston. The 1200-hectare site lies in the Transition Hardwood-White Pine-Hemlock forest region, and includes a variety of forests and wetlands. Research at the Forest focuses on effects of natural and human disturbances on forest ecosystems. These disturbances include atmospheric pollution, global warming, hurricanes, treefalls, and insect outbreaks. Facilities include laboratories for nutrient analysis, physiological and population ecology, isozyme and pollen analysis; greenhouses; herbarium; computer laboratory; library; and a museum.

Location
North-central Massachusetts
42.5°N Latitude; 72°W Longitude
Land Base
Petersham, MA: 1200 ha across 3 major tracts
Prospect Hill
Tom Swamp
Slab City
Plus 2 smaller tracts (Schwarz Tract and Simes Tract)

Royalston, MA: 28 ha Tall Timbers Tract
Hamilton, MA: 40 ha Matthews Plantation
Winchester, NH: 10 ha Pisgah Tract, which is part of the 5000 ha Pisgah State Forest

Climate
Cool, moist temperate
July mean temperature 20°C
January mean temperature -7°C
Annual mean precipitation 110 cm, distributed fairly evenly throughout the year

Physiography
New England Upland Region
Elevation: 220m to 410m above sea level
Bedrock: granite, gneiss and schist

Soils
Mainly sandy loam glacial till, with some alluvial and colluvial deposits
Moderately to well drained in most areas
Acidic
Average depth 3 m

Vegetation
Transition Hardwood - White Pine - Hemlock Region
Dominant species:
Red oak (Quercus rubra)
Red maple (Acer rubrum)
Black birch (Betula lenta)
White pine (Pinus strobus)
Eastern hemlock (Tsuga canadensis)
Species found on drier soils:
White oak (Quercus alba)
Black oak (Quercus velutina)
Hickory (Carya ovata)
Chestnut (Castanea dentata), now only found in understory because of chestnut blight
On moist, cool, but well-drained sites:
Yellow birch (Betula alleghaniensis)
Beech (Fagus grandifolia)
Sugar maple (Acer saccharum)
Paper birch (Betula papyrifera)
White ash (Fraxinus americana)
Hemlock
White pine

In peatlands:
Red spruce (Picea rubens)
Black spruce (Picea mariana)
Larch (Larix laricina)

Plantations:
Conifer plantations cover about 7% of Harvard Forest land

Short history: 
Since 1907 research and education have been the mission of the Harvard Forest, one of the oldest and most intensively studied forests in North America. From a center comprised of 3000 acres of land, research facilities, and the Fisher Museum the scientists, students, and collaborators at the Forest explore topics ranging from conservation and environmental change to land-use history and the ways in which physical, biological and human systems interact to change our earth.
Short research topics: 
Long-term climate change, disturbance history and vegetation dynamics; comparison of community, population, and plant architectural responses to human and natural disturbance; forest-atmosphere trace gas fluxes; organic matter accumulation, decomposition and mineralization; element cycling, fine root dynamics and forest microbiology.

Since its establishment in 1907 the Harvard Forest has served as a center for research and education in forest biology. Research areas have included siliviculture and forest management, soils and the development of forest site concepts, biology of temperate and tropical trees, forest ecology, and ecosystem dynamics. The Harvard Forest Long Term Ecological Research Program (HF LTER), established in 1988 through funding from the National Science Foundation, epitomizes current research activities. Cooperation with other research sites and collaboration with independent researchers are central to the research and educational goals of the forest.

Harvard Forest
324 N Main St
Petersham
MA
01366
USA
(978) 724-3302
(978) 724-3595
Deciduous Forest
elevation comment: 
Data Source: Collins/Waide. class data. 2008. not published yet.
latitude comment: 
Data Source: LTER Site Characteristics Database. http://www.lternet.edu/sites/hfr
Longitude_comment: 
Data Source: LTER Site Characteristics Database. http://www.lternet.edu/sites/hfr
ecosystem comment: 
Data Source: GreenLand, D., G. G. Goodin., R. C., Smith. 2003. An Introduction to Climate Variability and Ecosystem Response. p8. In Climate Variability and Ecosystem Response at Long-Term Ecological Research Sites. Oxford University Press

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