热门
Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Liu, Wenjie1; Chen, Shengyun1; Qin, Xiang1; Baumann, Frank2; Scholten, Thomas2; Zhou, Zhaoye1; Sun, Weijun1; Zhang, Tongzuo3; Ren, Jiawen1; Qin, Dahe1 |
| 刊名 | environmental research letters
 |
| 出版日期 | 2012-07-01 |
| 卷号 | 7期号:3 |
| 关键词 | alpine ecosystem global warming soil moisture aboveground biomass belowground biomass mean annual temperature and precipitation |
| ISSN号 | 1748-9326 |
| 中文摘要 | this study tested the hypothesis that soil organic carbon (soc) and total nitrogen (tn) spatial distributions show clear relationships with soil properties and vegetation composition as well as climatic conditions. further, this study aimed to find the corresponding controlling parameters of soc and tn storage in high-altitude ecosystems. the study was based on soil, vegetation and climate data from 42 soil pits taken from 14 plots. the plots were investigated during the summers of 2009 and 2010 at the northeastern margin of the qinghai-tibetan plateau. relationships of soc density with soil moisture, soil texture, biomass and climatic variables were analyzed. further, storage and vertical patterns of soc and tn of seven representative vegetation types were estimated. the results show that significant relationships of soc density with belowground biomass (bgb) and soil moisture (sm) can be observed. bgb and sm may be the dominant factors influencing soc density in the topsoil of the study area. the average densities of soc and tn at a depth of 1 m were about 7.72 kg c m(2) and 0.93 kg n m 2. both soc and tn densities were concentrated in the topsoil (0-20 cm) and fell exponentially as soil depth increased. additionally, the four typical vegetation types located in the northwest of the study area were selected to examine the relationship between soc and environmental factors (temperature and precipitation). the results indicate that soc density has a negative relationship with temperature and a positive relationship with precipitation diminishing with soil depth. it was concluded that soc was concentrated in the topsoil, and that soc density correlates well with bgb. soc was predominantly influenced by sm, and to a much lower extent by temperature and precipitation. this study provided a new insight in understanding the control of soc and tn density in the northeastern margin of the qinghai-tibetan plateau. |
| 英文摘要 | this study tested the hypothesis that soil organic carbon (soc) and total nitrogen (tn) spatial distributions show clear relationships with soil properties and vegetation composition as well as climatic conditions. further, this study aimed to find the corresponding controlling parameters of soc and tn storage in high-altitude ecosystems. the study was based on soil, vegetation and climate data from 42 soil pits taken from 14 plots. the plots were investigated during the summers of 2009 and 2010 at the northeastern margin of the qinghai-tibetan plateau. relationships of soc density with soil moisture, soil texture, biomass and climatic variables were analyzed. further, storage and vertical patterns of soc and tn of seven representative vegetation types were estimated. the results show that significant relationships of soc density with belowground biomass (bgb) and soil moisture (sm) can be observed. bgb and sm may be the dominant factors influencing soc density in the topsoil of the study area. the average densities of soc and tn at a depth of 1 m were about 7.72 kg c m(2) and 0.93 kg n m 2. both soc and tn densities were concentrated in the topsoil (0-20 cm) and fell exponentially as soil depth increased. additionally, the four typical vegetation types located in the northwest of the study area were selected to examine the relationship between soc and environmental factors (temperature and precipitation). the results indicate that soc density has a negative relationship with temperature and a positive relationship with precipitation diminishing with soil depth. it was concluded that soc was concentrated in the topsoil, and that soc density correlates well with bgb. soc was predominantly influenced by sm, and to a much lower extent by temperature and precipitation. this study provided a new insight in understanding the control of soc and tn density in the northeastern margin of the qinghai-tibetan plateau. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 类目[WOS] | environmental sciences ; meteorology & atmospheric sciences |
| 研究领域[WOS] | environmental sciences & ecology ; meteorology & atmospheric sciences |
| 关键词[WOS] | climate-change ; global patterns ; permafrost ; china ; temperature ; biogeochemistry ; decomposition ; respiration ; grasslands ; vegetation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309555300041 |
| 公开日期 | 2013-03-15 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/3644]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Qilian Shan Stn Glaciol & Ecol Environm, Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Tubingen, Inst Geog, Chair Phys Geog & Soil Sci, D-72070 Tubingen, Germany 3.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wenjie,Chen, Shengyun,Qin, Xiang,et al. Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai-Tibetan Plateau[J]. environmental research letters,2012,7(3). |
| APA | Liu, Wenjie.,Chen, Shengyun.,Qin, Xiang.,Baumann, Frank.,Scholten, Thomas.,...&Qin, Dahe.(2012).Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai-Tibetan Plateau.environmental research letters,7(3). |
| MLA | Liu, Wenjie,et al."Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai-Tibetan Plateau".environmental research letters 7.3(2012). |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。