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- Title
Effects of nitrogen deposition and management practices on leaf litterfall and N and P return in a Moso bamboo forest.
- Authors
Li, Quan; Peng, Changhui; Song, Xinzhang; Zhang, Junbo; Lv, Jianhua; Ying, Yeqing
- Abstract
The effects of nitrogen (N) deposition and management practices on leaf litterfall and N and P return in Moso bamboo forest are not yet known. In this study, we investigated the effects of four levels of simulated N deposition, including low-N (N30, 30 kg ha year), medium-N (N60, 60 kg ha year), and high-N (N90, 90 kg ha year), and a control with no N (N-free addition). The experiment was performed in a Moso bamboo forest under conventional management (CM) and intensive management (IM). The results showed that leaf litterfall and N and P return occurred mainly from March to June and accounted for 78.2-82.2, 78.5-82.1, and 85.6-94.6% of annual leaf litterfall, N return, and P return, respectively. Unlike CM, IM significantly increased leaf litterfall and N and P return. The positive effects were further amplified by low- and medium-N deposition, but not high-N deposition. The combination of low- and medium-N deposition and IM significantly increased N and P return, but not litterfall. Our results indicated that the interaction of anthropogenic management practices and N deposition need to be considered when estimating the effects of N deposition on the biogeochemical cycle of a forest ecosystem.
- Subjects
NITROGEN in soils; FOREST litter decomposition; FOREST management; PHYLLOSTACHYS; PLANT nutrients; BAMBOO; ANTHROPOGENIC soils
- Publication
Biogeochemistry, 2017, Vol 134, Issue 1-2, p115
- ISSN
0168-2563
- Publication type
Article
- DOI
10.1007/s10533-017-0349-2