Bormann, F.H., G.E. Likens, D.W. Fisher and R.S. Pierce. 1968. Nutrient loss accelerated by clear-cutting of a forest ecosystem. Science 159:882-884.
The v-notch weir is used to quantify the hydrologic and biogeochemical mass-balance of small watersheds and responses to whole-ecosystem experimental manipulations.
A classic experiment at HBR involved the deforestation (shaded) of watershed 2 (dashed line) which resulted in striking increases in the flux of key nutrients in comparison with the reference watershed 6.
Bormann et al. 1968 (see above).