干旱区生态环境知识资源中心(Arid): Changes in surface soil organic carbon in semiarid degraded Horqin Grassland of northeastern China between the 1980s and the 2010s

Arid

DOI	10.1016/j.catena.2018.11.021
	Changes in surface soil organic carbon in semiarid degraded Horqin Grassland of northeastern China between the 1980s and the 2010s
	Li, Yuqiang 1; Wang, Xuyang 1,2; Chen, Yinping 3; Luo, Yongqing 1; Lian, Jie 1; Niu, Yayi 1,2; Gong, Xiangwen 1,2; Yang, Huan 1; Yu, Peidong 3
通讯作者	Li, Yuqiang
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2019
卷号	174 页码:217-226
英文摘要	Soil organic carbon (SOC) plays an important role in the global carbon cycle and in mitigating climate change. The Horqin Grassland is one of the largest grasslands in China and has undergone serious aeolian desertification in recent decades. We conducted the largest field inventory to date, with the highest density of soil sampling, and explored changes in SOC in the region over the 30-year gap between the 1980s and the 2010s. Our results indicated that the mean SOC density to a depth of 20 cm decreased from 2.58 to 2.21 kg C m(-2), while the total SOC storage decreased from 311.11 to 266.70 Tg C, at an average of 12.29 g C m(-2) yr(-1). We ranked the SOC densities by ecosystem as woodland > grassland > cropland > sandy land. The decreased SOC storage in the Horqin Grassland can be ascribed to a combination of increasing temperature, decreasing precipitation, an expansion of the areas of extremely severely desertified land and cropland, and shrinkage of the grassland area. Our results provide an important updated regional baseline for quantifying how SOC storage will respond to future climate change and anthropogenic activities. Our results will also help policy makers determine how to achieve sustainable development of agriculture, forestry, and animal husbandry based on carbon sequestration.
英文关键词	Soil carbon stock Sandy grassland Desertification Horqin Sandy Land Semiarid ecosystem
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000456754600020
WOS关键词	LAND-USE CHANGE ; SANDY LAND ; INNER-MONGOLIA ; CLIMATE-CHANGE ; STOCKS ; STORAGE ; SEQUESTRATION ; DESERTIFICATION ; NITROGEN ; CHRONOSEQUENCE
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214821
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, 320 Donggang West Rd, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuqiang,Wang, Xuyang,Chen, Yinping,et al. Changes in surface soil organic carbon in semiarid degraded Horqin Grassland of northeastern China between the 1980s and the 2010s[J],2019,174:217-226.
APA	Li, Yuqiang.,Wang, Xuyang.,Chen, Yinping.,Luo, Yongqing.,Lian, Jie.,...&Yu, Peidong.(2019).Changes in surface soil organic carbon in semiarid degraded Horqin Grassland of northeastern China between the 1980s and the 2010s.CATENA,174,217-226.
MLA	Li, Yuqiang,et al."Changes in surface soil organic carbon in semiarid degraded Horqin Grassland of northeastern China between the 1980s and the 2010s".CATENA 174(2019):217-226.