Comparison of Carbon-Use Efficiency Among Different Land-Use Patterns of the Temperate Steppe in the Northern China Pastoral Farming Ecotone
文献类型：期刊论文
| 作者 | Li, Yuzhe1; Fan, Jiangwen1; Hu, Zhongmin2 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 10期号:2页码:17 |
| 关键词 | farming-pastoral ecozone land-use pattern temperate steppe ecosystem carbon exchange carbon use efficiency |
| ISSN号 | 2071-1050 |
| DOI | 10.3390/su10020487 |
| 通讯作者 | Fan, Jiangwen(fanjw@igsnrr.ac.cn) |
| 英文摘要 | Carbon-use efficiency (CUE) is the proportion of gross primary production converted to net primary production. Changes to CUE strongly influence ecosystem carbon budgets and turnover. Little is known about the response of ecosystem CUE to human-induced land-use change, which limits the accurate evaluation of the environmental influence of large-scale steppe-use changes in northern China. We investigated the components of ecosystem carbon exchange and CUE under three typical steppe-use patterns in Xilinhot, Inner Mongolia. The results showed that CUE in grazing and grazing-excluded steppe were not significantly different (both over 0.7) but were significantly higher than in cultivated steppe (0.57). Ecosystem respiration and its components, including autotrophic respiration (Ra), aboveground respiration, heterotrophic respiration and belowground respiration showed significant negative correlation with CUE. Ra is the most important factor explaining the variation of CUE between different steppe-use patterns (p < 0.001, 97%); Ra change may be the primary factor driving CUE variation between steppe-use patterns. Leaf area index of different grassland-use patterns also showed a significant negative correlation with CUE (p < 0.001, 91%). These findings may help to improve accurate prediction of the environmental and climatic consequences of large-scale land-use change. |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; ECOSYSTEM RESPIRATION ; SOIL RESPIRATION ; CLIMATE-CHANGE ; GRASSLAND ; RESPONSES ; PHOTOSYNTHESIS ; SEQUESTRATION ; AGRICULTURE ; ACCLIMATION |
| 资助项目 | National Key R&D Program of China[2017YEA0604801] ; Natural Sciences Foundation of China[41601615] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000425943100210 |
| 出版者 | MDPI AG |
| 资助机构 | National Key R&D Program of China ; Natural Sciences Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57108]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fan, Jiangwen |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yuzhe,Fan, Jiangwen,Hu, Zhongmin. Comparison of Carbon-Use Efficiency Among Different Land-Use Patterns of the Temperate Steppe in the Northern China Pastoral Farming Ecotone[J]. SUSTAINABILITY,2018,10(2):17. |
| APA | Li, Yuzhe,Fan, Jiangwen,&Hu, Zhongmin.(2018).Comparison of Carbon-Use Efficiency Among Different Land-Use Patterns of the Temperate Steppe in the Northern China Pastoral Farming Ecotone.SUSTAINABILITY,10(2),17. |
| MLA | Li, Yuzhe,et al."Comparison of Carbon-Use Efficiency Among Different Land-Use Patterns of the Temperate Steppe in the Northern China Pastoral Farming Ecotone".SUSTAINABILITY 10.2(2018):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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