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Increased soil organic carbon storage in Chinese terrestrial ecosystems from the 1980s to the 2010s

文献类型：期刊论文

作者Xu Li2; Yu Guirui1,2; He Nianpeng1,2
刊名JOURNAL OF GEOGRAPHICAL SCIENCES
出版日期2019
卷号29期号:1页码:49-66
关键词Chinese terrestrial ecosystems change storage soil organic carbon
ISSN号1009-637X
DOI10.1007/s11442-019-1583-4
通讯作者Yu Guirui(yugr@igsnrr.ac.cn)
英文摘要Soil stores a large amount of the terrestrial ecosystem carbon (C) and plays an important role in maintaining global C balance. However, very few studies have addressed the regional patterns of soil organic carbon (SOC) storage and the main factors influencing its changes in Chinese terrestrial ecosystems, especially using field measured data. In this study, we collected information on SOC storage in main types of ecosystems (including forest, grassland, cropland, and wetland) across 18 regions in China during the 1980s (from the Second National Soil Survey of China, SNSSC) and the 2010s (from studies published between 2004 and 2014), and evaluated its changing trends during these 30 years. The SOC storage (0-100 cm) in Chinese terrestrial ecosystems was 83.46 +/- 11.89 Pg C in the 1980s and 86.50 +/- 8.71 Pg C in the 2010s, and the net increase over the 30 years was 3.04 +/- 1.65 Pg C, with an overall rate of 0.101 +/- 0.055 Pg C yr(-1). This increase was mainly observed in the topsoil (0-20 cm). Forests, grasslands, and croplands SOC storage increased 2.52 +/- 0.77, 0.40 +/- 0.78, and 0.07 +/- 0.31 Pg C, respectively, which can be attributed to the several ecological restoration projects and agricultural practices implemented. On the other hand, SOC storage in wetlands declined 0.76 +/- 0.29 Pg C, most likely because of the decrease of wetland area and SOC density. Combining these results with those of vegetation C sink (0.100 Pg C yr(-1)), the net C sink in Chinese terrestrial ecosystems was about 0.201 +/- 0.061 Pg C yr(-1), which can offset 14.85%-27.79% of the fossil fuel C emissions from the 1980s to the 2010s. These first estimates of soil C sink based on field measured data supported the premise that China's terrestrial ecosystems have a large C sequestration potential, and further emphasized the importance of forest protection and reforestation to increase SOC storage capacity.
WOS关键词NET PRIMARY PRODUCTION ; OLD-GROWTH FORESTS ; TEMPERATURE SENSITIVITY ; VERTICAL-DISTRIBUTION ; LAND-USE ; CLIMATE ; STOCKS ; GRASSLANDS ; CROPLANDS ; DECOMPOSITION
资助项目Chinese Academy of Sciences Strategic Priority Research Program[XDA19020302] ; National Key Research Project of China[2016YFC0500202] ; National Natural Science Foundation of China[31290221] ; National Natural Science Foundation of China[41571130043] ; National Natural Science Foundation of China[31570471]
WOS研究方向Physical Geography
语种英语
WOS记录号WOS:000455152500003
出版者SCIENCE PRESS
资助机构Chinese Academy of Sciences Strategic Priority Research Program ; National Key Research Project of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/50627]  
专题地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心
通讯作者Yu Guirui
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Xu Li,Yu Guirui,He Nianpeng. Increased soil organic carbon storage in Chinese terrestrial ecosystems from the 1980s to the 2010s[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2019,29(1):49-66.
APA Xu Li,Yu Guirui,&He Nianpeng.(2019).Increased soil organic carbon storage in Chinese terrestrial ecosystems from the 1980s to the 2010s.JOURNAL OF GEOGRAPHICAL SCIENCES,29(1),49-66.
MLA Xu Li,et al."Increased soil organic carbon storage in Chinese terrestrial ecosystems from the 1980s to the 2010s".JOURNAL OF GEOGRAPHICAL SCIENCES 29.1(2019):49-66.

入库方式： OAI收割

来源：地理科学与资源研究所

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