Titlebook: Biogeochemistry of a Forested Ecosystem; Gene E. Likens,F. Herbert Bormann,Noye M. Johnson Textbook 19771st edition Springer-Verlag New Yo

Fallibility

https://doi.org/10.1007/978-1-4615-9993-7Biogeochemie; Forested Ecosystem; Hubbard Brook Valley /Biologie; Wald; ecosystem; forest; nutrient cyclin

Silent-Ischemia

Springer-Verlag New York Inc. 1977

反感

ambivalence

Ecosystem Analysis,elationships and the internal functions that maintain the ecosystem, it is often difficult to assess the impact of human activities on the biosphere. As a result, land-use planners often cannot take into account or even foresee the full range of consequences a project may have. Without full informat

Herbivorous

Hydrology, in understanding the biogeochemistry of an ecosystem. The United States Forest Service has monitored and maintained accurate records of precipitation and streamflow for watersheds of the HBEF since 1956.

concubine

Chemistry,ontinuously open plastic collectors (Likens et al., 1967). Samples of stream water are collected approximately 10 m upstream from each weir in clean polyethylene bottles. This is necessary because water collected from the ponding basin above the weir would be contaminated by calcium and bicarbonate

招致

干旱

FAWN

大骂

The Northern Hardwood Ecosystem at Hubbard Brook in Relation to Other Forested Ecosystems in the Wo small area, 92% of the earth’s plant biomass and 46% of its annual net primary production come from forests (Table 21). The 79.9 billion metric tons of dry plant matter produced (net) each year by forests exceeds the total net primary production of the oceans, even though the oceans are more than s