Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China

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	Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China
	Li, XY; Wei, JB; Xiao, DN; Zhang, XY; Li, XZ; Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2006
卷号	121 期号:1-3 页码:597-613
关键词	Black Soil Region Of Northeastern China Geostatistics Gis Land Use Soil Organic Carbon Topographic Factors
ISSN号	0167-6369
英文摘要	A total of 292 soil samples were taken from surface soil (0-20 cm) of a typical small watershed-Tongshuang in the black soil region of Heilongjiang province, northeast China in June 2005 for examining the concentration of soil organic carbon (SOC). Spatial variability of SOC in relation to topography and land use was evaluated using classical statistics, geostatistics and geographic information system (GIS) analyses. The objective of this study was to provide a scientific basis for land management targeting at improving soil quality in this region. Classical statistical analysis results indicated that the variability of SOC was moderate (C-V = 0.30). Slope position and land use types were discriminating factors for its spatial variability. Geostatistics analyses showed that SOC had a strong spatial autocorrelation, which was mainly induced by structural factors. Mean concentration of SOC in surface soil was 2.27% in this watershed, which was a very low level in the northern black soil region of northeast China. In this small watershed, present soil and water conservation measures played an important role in controlling soil loss. But SOC's restoration was unsatisfactory. Nearly three-quarters of the area had worrisome productivity. How to improve SOC concentration targeting at soil fertility is a pressing need in the future.
学科主题	Environmental Sciences
语种	英语
WOS记录号	WOS:000241453500038
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54849]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, XY,Wei, JB,Xiao, DN,et al. Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2006,121(1-3):597-613.
APA	Li, XY,Wei, JB,Xiao, DN,Zhang, XY,Li, XZ,&Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2006).Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China.ENVIRONMENTAL MONITORING AND ASSESSMENT,121(1-3),597-613.
MLA	Li, XY,et al."Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China".ENVIRONMENTAL MONITORING AND ASSESSMENT 121.1-3(2006):597-613.