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[Effects of simulated nitrogen deposition on soil available nitrogen forms and their contents in typical temperate forest stands].

Authors
Type
Published Article
Journal
Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban
Publication Date
Volume
22
Issue
8
Pages
2005–2012
Identifiers
PMID: 22097361
Source
Medline

Abstract

An indoor experiment was conducted to study the effects of simulated nitrogen deposition on the soil available N in typical temperate forest stands. During the experiment period, nitrogen deposition increased the soil NH4+ -N, NO3- -N, and available N contents, as compared with the control, but the increments differed with stand types, soil layers, nitrogen treatment types, and treatment duration. Mixed forest soil had weaker responses in its available N contents to the nitrogen deposition than broad-leaved forest soil but stronger responses than artificially pure coniferous forest soil, and soil A horizon was more sensitive to nitrogen deposition than soil B horizon. Ammonium nitrogen deposition had larger effects on soil NH4+ -N content, nitrate nitrogen deposition had larger effects on soil NO3- -N content, while mixed ammonium and nitrate nitrogen deposition increased the contents of both soil NH4+ -N and soil NO3- -N, and the increments were higher than those of ammonium nitrogen deposition and nitrate nitrogen deposition, suggesting the additive effects of the mixed ammonium and nitrate nitrogen deposition on the forest soil available N.

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