干旱区生态环境知识资源中心(Arid): Effects of climate and grazing on the soil organic carbon dynamics of the grasslands in Northern Xinjiang during the past twenty years

Arid

DOI	10.1016/j.gecco.2022.e02039
	Effects of climate and grazing on the soil organic carbon dynamics of the grasslands in Northern Xinjiang during the past twenty years
	Wang, Guangyu; Mao, Jiefei; Fan, Lianlian; Ma, Xuexi; Li, Yaoming
通讯作者	Li, YM
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2022
卷号	34
英文摘要	The soil organic carbon (SOC) of grasslands is a vital component of the global carbon cycle. The SOC in grassland ecosystems in arid and semi-arid regions is sensitive to global climate change, but the dynamic drivers of the SOC content are still controversial. Grazing is the main factor affecting SOC contents in grasslands; however, the response of different types of grasslands to the grazing intensity remains unclear. Based on the Denitrification-Decomposition model and field investigations, in this study, the spatial and temporal dynamics of SOC and its drivers in the grasslands in Northern Xinjiang were investigated, and the response of the SOC in the different types of grasslands to various grazing intensities at the regional scale. The results reveal that the SOC content of the grasslands in Northern Xinjiang increased at a rate of 161.32 kg C ha(-1) yr(-1) from 2001 to 2020, and the spatial distribution of the SOC dynamics varied greatly. There was an increasing trend at higher elevations and a decreasing trend at lower elevations. Grazing contributed less to the SOC dynamics, and temperature and precipitation were the main drivers of the SOC dynamics. The overall effect of the grazing intensity on SOC content was negative. The responses of the different types of grassland to the grazing intensity varied greatly, with the least effect in alpine meadows and the greatest effect in lowland meadows and temperate desert grasslands.
英文关键词	Carbon dynamic Grazing intensity DNDC Precipitation Temperature
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000761063400004
WOS关键词	TEMPERATURE SENSITIVITY ; NITROGEN STORAGE ; MODELING IMPACTS ; VEGETATION ; INTENSITY ; CHINA ; MANAGEMENT ; EMISSIONS ; FEEDBACKS ; STEPPE
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392976
推荐引用方式 GB/T 7714	Wang, Guangyu,Mao, Jiefei,Fan, Lianlian,et al. Effects of climate and grazing on the soil organic carbon dynamics of the grasslands in Northern Xinjiang during the past twenty years[J],2022,34.
APA	Wang, Guangyu,Mao, Jiefei,Fan, Lianlian,Ma, Xuexi,&Li, Yaoming.(2022).Effects of climate and grazing on the soil organic carbon dynamics of the grasslands in Northern Xinjiang during the past twenty years.GLOBAL ECOLOGY AND CONSERVATION,34.
MLA	Wang, Guangyu,et al."Effects of climate and grazing on the soil organic carbon dynamics of the grasslands in Northern Xinjiang during the past twenty years".GLOBAL ECOLOGY AND CONSERVATION 34(2022).