Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9443386 | Ecological Modelling | 2005 | 13 Pages |
Abstract
According to the assessments of the model simulations and the field measurements, the increased watershed soil nutrient losses through the stream exports after forest harvesting may not cause the decline of the watershed soil productivity because (1) the annual increments of the stream nutrient exports were small, with 2.34 kg haâ1 yearâ1 for NO3â-N, 0.93 for NH4+-N, 3.34 for Ca2+, 0.30 for Mg2+, and 5.21 for K+ and (2) the increased watershed soil nutrient losses occurred during the stage of forest regeneration when vegetation growth requires low soil nutrient supply.
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Authors
Zhanxue Zhu, Paul A. Arp, Asit Mazumder, Fanrui Meng, Charles P.-A. Bourque, Neil W. Foster,