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| 草地生态系统土壤有机碳库对人为干扰和全球变化的响应研究进展 | |
| 引用本文： | 肖胜生,董云社,齐玉春,彭琴,何亚婷,杨智杰.草地生态系统土壤有机碳库对人为干扰和全球变化的响应研究进展[J].地球科学进展,2009,24(10):1138-1148. |
| 作者姓名： | 肖胜生 董云社 齐玉春 彭琴 何亚婷 杨智杰 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京100101;中国科学院研究生院,北京100039 2. 中国科学院地理科学与资源研究所,北京,100101 3. 湿润亚热带生态-地理过程省部共建教育部重点实验室,福建福州,350007 |
| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金面上项目，*，国家科技攻关计划 |
| 摘 要： | 草地土壤碳库碳储量及其变化与调控机制是草地碳循环研究的核心.草地生态系统正经受着越来越严重的人为与自然因素干扰,如土地利用变化、大气氮沉降增加、施肥及大气CO2浓度与温度升高.因此,加强人为干扰和全球变化背景下草地土壤有机碳库的响应研究有重要意义.总结了放牧、草地开垦及外来氮素输入等3种主要的人类活动对土壤有机碳总量和活性碳组分的影响及其对全球变化的响应与适应,在此基础上指出了目前草地生态系统土壤有机碳库研究的薄弱环节及今后的重点研究领域. |
| 关 键 词： | 草地生态系统 土壤有机碳 土壤活性碳 全球变化 |
Advance in Responses of Soil Organic Carbon Pool of Grassland Ecosystem to Human Effects and Global Changes |
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| XIAO Shengsheng,DONG Yunshe,QI Yuchun,PENG Qin,HE Yating,YANG Zhijie.Advance in Responses of Soil Organic Carbon Pool of Grassland Ecosystem to Human Effects and Global Changes[J].Advance in Earth Sciences,2009,24(10):1138-1148. | |
| Authors: | XIAO Shengsheng DONG Yunshe QI Yuchun PENG Qin HE Yating YANG Zhijie |
| Institution: | 1.Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;; 2.Graduate University of Chinese Academy of Sciences, Beijing 100149; 3.Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007,China |
| Abstract: | The stocks and its change mechanism of soil carbon pool in grassland are the core of grassland ecosystem carbon cycle research. Grassland are undergoing serious disturbance, such as land-use change, nitrogen input (nitrogen decomposition and fertilization), elevated CO2 and global warming. Strengthening the research in responses of grass soil organic carbon pool to the disturbance is of great importance. Here we reviewed the effects of grazing, grassland cultivation, and external nitrogen input on soil organic carbon pool including soil active carbon fraction and their responses to global change. The main research directions in this field in the future were also suggested. |
| Keywords: | grassland ecosystem soil organic carbon soil active carbon global change |
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