Effects of warming and nitrogen deposition on the coupling mechanism between soil nitrogen and phosphorus in Songnen Meadow Steppe, northeastern China
文献类型：期刊论文
| 作者 | Zhang, Nanyi; Guo, Rui3; Song, Piao2; Guo, Jixun; Gao, Yingzhi |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2013 |
| 卷号 | 65页码:96-104 |
| ISSN号 | 0038-0717 |
| 关键词 | Warming N addition Soil nitrogen Soil phosphorus Global change Coupling mechanism |
| DOI | 10.1016/j.soilbio.2013.05.015 |
| 文献子类 | Article |
| 英文摘要 | Songnen Meadow Steppe, which is in northeast China, is increasingly affected by global warming and incremental increases in atmospheric nitrogen deposition. However, the responses of nitrogen (N) and phosphorus (P) in steppe soil, and of the coupling mechanism between them, to the dual effects of global warming and N deposition are still unknown. In this study, the effects of simulated atmospheric warming and N deposition on N and P in Songnen steppe soil, as well as on the coupling between N and P, were examined under in situ conditions. Infrared heaters were used to elevate soil temperature by approximately 1.7 degrees C since 2006. N additions were treated once a year with aqueous ammonium nitrate at a rate of 10 g m(-2) a(-1). During the four-year study, addition of N increased the amount of total N, and available N, as well as the rate of N mineralization in the soil. Moreover, the amounts of total P and available P in the soil were considerably reduced. Thus, the N:P ratio increased, and the coupling between N and P decreased. Similar values for the N:P ratio were obtained for the addition of N by itself and for the combination of warming and addition of N, which indicates that a small amount of soil warming in Songnen Meadow Steppe would not have a substantial effect on the ratio. With the growth of China's industrialization, N deposition continues to increase. The study area of Songnen Meadow Steppe, and northeast China in general, are characterized by widespread distribution of saline alkali soil. Therefore, the finding of increased P limitation in the soil of Songnen Meadow Steppe has major implications for ecosystems in northeast China. Reasonable regulation and management of meadow soil nutrients will be of great importance in increasing soil productivity and promoting sustainable use of grassland ecosystems. (C) 2013 Elsevier Ltd. All rights reserved. |
| 学科主题 | Soil Science |
| 出版地 | OXFORD |
| WOS关键词 | TEMPERATE FOREST ECOSYSTEMS ; CLIMATE-CHANGE ; DIFFERENTIAL RESPONSES ; LITTER DECOMPOSITION ; PHOSPHATASE-ACTIVITY ; GRASSLAND ECOSYSTEM ; MICROBIAL BIOMASS ; REACTIVE NITROGEN ; ELEVATED CO2 ; MINERALIZATION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000323686800012 |
| 资助机构 | National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Strategic Priority Research Program of the Chinese Academy of Sciences(Chinese Academy of Sciences) ; Research Fund for the Doctoral Program of Higher Education of China(Research Fund for the Doctoral Program of Higher Education of China (RFDP)Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27883]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Thyland Agr, Minist Agr, Beijing 100081, Peoples R China 3.NE Normal Univ, Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Nanyi,Guo, Rui,Song, Piao,et al. Effects of warming and nitrogen deposition on the coupling mechanism between soil nitrogen and phosphorus in Songnen Meadow Steppe, northeastern China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2013,65:96-104. |
| APA | Zhang, Nanyi,Guo, Rui,Song, Piao,Guo, Jixun,&Gao, Yingzhi.(2013).Effects of warming and nitrogen deposition on the coupling mechanism between soil nitrogen and phosphorus in Songnen Meadow Steppe, northeastern China.SOIL BIOLOGY & BIOCHEMISTRY,65,96-104. |
| MLA | Zhang, Nanyi,et al."Effects of warming and nitrogen deposition on the coupling mechanism between soil nitrogen and phosphorus in Songnen Meadow Steppe, northeastern China".SOIL BIOLOGY & BIOCHEMISTRY 65(2013):96-104. |
入库方式： OAI收割
来源：植物研究所
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