干旱区生态环境知识资源中心(Arid): Soil organic carbon increase in semi-arid regions of China from 1980s to 2010s

Arid

DOI	10.1016/j.apgeochem.2020.104575
	Soil organic carbon increase in semi-arid regions of China from 1980s to 2010s
	Yu, Tao 1; Fu, Yesi 2; Hou, Qingye 1; Xia, Xueqi 1; Yan, Beizhan 3; Yang, Zhongfang 1
通讯作者	Yang, Zhongfang
来源期刊	APPLIED GEOCHEMISTRY
ISSN	0883-2927
EISSN	1872-9134
出版年	2020
卷号	116
英文摘要	Soil carbon plays a key role in agriculture and ecosystem. Semi-arid regions cover many parts of China, holding a carbon pool that should not be ignored. Thus, systematic studies of the carbon distribution and variation in semiarid regions are necessary. In this study, we comprehensively analyzed the factors that influence the distribution and variation in soil carbon covering area over 0.92 x 10(6) km(2). Results indicated that the average values of soil organic carbon density (at the soil sampling depth of 0-20 cm) in the study area were 0.58-4.50 kg/m(2). Soil organic carbon density (SOCD) was clearly related with climate conditions (e.g., temperature and precipitation), soil properties (e.g., pH and soil texture) and human activities. The results revealed a significant negative relationship between SOCD and temperature. Meanwhile, SOCD showed positive relationship with precipitation. Correlation analysis also demonstrated a negative correlation between SOCD and soil pH, but positively associated with soil Al:Si ratio. Land utilization and fertilization would also affect SOCD in the regions. Upon comparing the current data with that of the 1980s, soil organic carbon storage presented a remarkable increasing trend with 2.55 Tg in these studied regions due to land use change. These findings would provide evidences and insights for the future land managements of semi-arid regions of China in the context of global climate change.
英文关键词	Soil organic carbon density Semi-arid region Temporal and spatial variation Factors
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000536438300009
WOS关键词	LAND-USE CHANGE ; MICROBIAL BIOMASS ; LOESS PLATEAU ; STORAGE ; SEQUESTRATION ; REGRESSION ; DYNAMICS ; NITROGEN ; STOCKS ; PRODUCTIVITY
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319039
作者单位	1.China Univ Geosci, 29 Xueyuan Rd, Beijing 100083, Peoples R China; 2.Zhejiang Inst Geol Survey, Hangzhou 311203, Peoples R China; 3.Columbia Univ, Palisades, NY 10964 USA
推荐引用方式 GB/T 7714	Yu, Tao,Fu, Yesi,Hou, Qingye,et al. Soil organic carbon increase in semi-arid regions of China from 1980s to 2010s[J],2020,116.
APA	Yu, Tao,Fu, Yesi,Hou, Qingye,Xia, Xueqi,Yan, Beizhan,&Yang, Zhongfang.(2020).Soil organic carbon increase in semi-arid regions of China from 1980s to 2010s.APPLIED GEOCHEMISTRY,116.
MLA	Yu, Tao,et al."Soil organic carbon increase in semi-arid regions of China from 1980s to 2010s".APPLIED GEOCHEMISTRY 116(2020).