干旱区生态环境知识资源中心(Arid): Multi-Scale Characterization of Spatial Variability of Soil Organic Carbon in a Semiarid Zone in Northern China

Arid

DOI	10.3390/su14159390
	Multi-Scale Characterization of Spatial Variability of Soil Organic Carbon in a Semiarid Zone in Northern China
	Li, Long; Yue, Yongjie; Qin, Fucang; Dong, Xiaoyu; Sun, Cheng; Liu, Yanqi; Zhang, Peng
通讯作者	Yue, YJ
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:15
英文摘要	The variation of soil organic carbon (SOC) spatial distribution is dependent on the relative contributions of different environmental factors, and the dominant factors change according to study scales. Here, geostatistical and remote sensing techniques were used to gain deep knowledge about SOC spatial distribution patterns and their dominant determinants at different study scales; specifically, the structure of the spatial variability of SOC content at the county, regional, and watershed scales in Aohan, China were analyzed. The results show that altitude and normalized difference vegetation index (NDVI) are the key predictors explaining 49.6% of the SOC variability at the county scale; NDVI and slope are the key predictors explaining 36.2% of the SOC variability at the regional scale; and terrain factors are the most significant factors at the watershed scale. These three scales have a moderate spatial correlation in terms of SOC content. As the study scale widens, the spatial variability attributable to the random factors increases gradually, whereas the variability attributable to the structural factors gradually weakens. Soil type and land use type are the key factors influencing the SOC content at these three scales. At all scales, the SOC contents of the different land use types differ significantly in the order forestland > shrubland > grassland. Conservation of regional soil and water and prevention of soil desertification are effective measures for improving SOC content.
英文关键词	multi-scale soil organic carbon spatial variability geostatistics
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000839200200001
WOS关键词	LAND-USE ; STOCKS ; POOLS ; SEQUESTRATION ; VEGETATION
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394623
推荐引用方式 GB/T 7714	Li, Long,Yue, Yongjie,Qin, Fucang,et al. Multi-Scale Characterization of Spatial Variability of Soil Organic Carbon in a Semiarid Zone in Northern China[J],2022,14(15).
APA	Li, Long.,Yue, Yongjie.,Qin, Fucang.,Dong, Xiaoyu.,Sun, Cheng.,...&Zhang, Peng.(2022).Multi-Scale Characterization of Spatial Variability of Soil Organic Carbon in a Semiarid Zone in Northern China.SUSTAINABILITY,14(15).
MLA	Li, Long,et al."Multi-Scale Characterization of Spatial Variability of Soil Organic Carbon in a Semiarid Zone in Northern China".SUSTAINABILITY 14.15(2022).