Impact of litter quality and soil nutrient availability on leaf decomposition rate in a semi-arid grassland of Northeast China
文献类型：期刊论文
| 作者 | Li, Lu-Jun1,2; Zeng, De-Hui1; Yu, Zhan-Yuan1; Fan, Zhi-Ping1; Yang, Dan1; Liu, Yun-Xia1 |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 75期号:9页码:787-792 |
| 关键词 | Keerqin Sandy Lands Litter Decomposition Nutrient Enrichment Species Identity |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2011.04.009 |
| 英文摘要 | It was hypothesized that litter with higher N concentration would decompose faster than that with lower N concentration and that increased soil nutrient availability would stimulate litter decomposition. To examine the interspecific differences in decomposition rate of leaf litter in relation with differences in litter chemistry and soil nutrient availability, senescent leaves of four species Pennisetum flaccidum, Artemisia scoparia, Chenopodium acuminatum and Cannabis sativa, and soil samples with different fertilization treatments (no fertilization, N, P. and N + P fertilizations, respectively) were collected from a sandy grassland in Northeast China and incubated under laboratory conditions. The decomposition rate of leaf litter was determined by measuring the CO(2) emission during decomposition of litter. We found remarkable interspecific differences in leaf decomposition rates. Moreover, rates of litter decomposition at different incubation stages were correlated with different litter quality indices. The rate of litter decomposition was positively correlated with initial litter N concentration in the initial stage of the incubation, whereas it was negatively correlated with litter N and P concentrations in the late stage. Responses of litter decomposition to soil nutrient availability differed among species. Our results suggest that both indirect changes in litter quality through shifts of species composition/dominance and direct changes in soil nutrient availability under nutrient addition conditions could affect litter decomposition and consequently C and nutrient cycling of grassland ecosystems. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000292488200005 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://210.72.129.5/handle/321005/121771]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zeng, De-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Daqinggou Ecol Stn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, NE Inst Geog & Agroecol, Key Lab Mollisols Agroecol, Harbin 150081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lu-Jun,Zeng, De-Hui,Yu, Zhan-Yuan,et al. Impact of litter quality and soil nutrient availability on leaf decomposition rate in a semi-arid grassland of Northeast China[J]. JOURNAL OF ARID ENVIRONMENTS,2011,75(9):787-792. |
| APA | Li, Lu-Jun,Zeng, De-Hui,Yu, Zhan-Yuan,Fan, Zhi-Ping,Yang, Dan,&Liu, Yun-Xia.(2011).Impact of litter quality and soil nutrient availability on leaf decomposition rate in a semi-arid grassland of Northeast China.JOURNAL OF ARID ENVIRONMENTS,75(9),787-792. |
| MLA | Li, Lu-Jun,et al."Impact of litter quality and soil nutrient availability on leaf decomposition rate in a semi-arid grassland of Northeast China".JOURNAL OF ARID ENVIRONMENTS 75.9(2011):787-792. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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