干旱区生态环境知识资源中心(Arid): Applicability of GIS-based spatial interpolation and simulation for estimating the soil organic carbon storage in karst regions

Arid

DOI	10.1016/j.gecco.2019.e00849
	Applicability of GIS-based spatial interpolation and simulation for estimating the soil organic carbon storage in karst regions
	Zhang, Zhenming 1,2; Zhou, Yunchao 1; Huang, Xianfei 1,3
通讯作者	Zhou, Yunchao
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
ISSN	2351-9894
出版年	2020
卷号	21
英文摘要	The applicability of the ordinary kriging method for estimating the soil organic carbon (SOC) stored in karst regions was investigated. A total of 23,536 soil samples were analysed from 2755 soil profiles collected using a grid-based sampling method in a typical small karst basin of western Guizhou in Southwest China. Corrections for the gravel content and rock exposure rate were applied to the GIS-based spatial interpolation and simulation and were compared with the same approach with the addition of soil profiles. With the addition of the soil profile data, the SOC stored in the karst catchment was accurately calculated as follows: 1.48 x 10(8) kg at a depth of 10 cm, 2.65 x 10(8) kg at 20 cm, 3.43 x 10(8) kg at 30 cm, and 5.39 x 10(8) kg at 100 cm. With the interpolation that was corrected for the rock exposure rate and soil depth, the resulting carbon storage estimation was 1.14-1.19 times higher than the most accurate estimate (that with the soil profiles), with an error rate of 114%-119%. Since the conventional geostatistical method failed to accurately fit the data, including the spatial distribution, micro-geomorphic features, rock exposure rate, and depth of the soil patches in the highly sloped exposed bedrock, must be used to correct the estimation of the SOC storage and organic carbon density in karst areas. Published by Elsevier B.V.
英文关键词	Correction Karst Organic carbon storage GIS spatial interpolation simulation Applicability
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000517814100064
WOS关键词	ROCKY DESERTIFICATION ; LOESS PLATEAU ; LAND-USE ; SEQUESTRATION ; REGRESSION ; CATCHMENT ; IMPACTS ; DENSITY ; AREA
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/2XILL650/314645
作者单位	1.Guizhou Univ, Inst Forest Resources & Environm Guizhou, Key Lab Forest Cultivat Plateau Mt Area, Coll Forestry, Guiyang 550025, Peoples R China; 2.Guizhou Acad Sci, Inst Biol Res Guizhou, Guiyang 550025, Peoples R China; 3.Guizhou Normal Univ, Guizhou Prov Key Lab Environm, Guiyang 550001, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhenming,Zhou, Yunchao,Huang, Xianfei. Applicability of GIS-based spatial interpolation and simulation for estimating the soil organic carbon storage in karst regions[J],2020,21.
APA	Zhang, Zhenming,Zhou, Yunchao,&Huang, Xianfei.(2020).Applicability of GIS-based spatial interpolation and simulation for estimating the soil organic carbon storage in karst regions.GLOBAL ECOLOGY AND CONSERVATION,21.
MLA	Zhang, Zhenming,et al."Applicability of GIS-based spatial interpolation and simulation for estimating the soil organic carbon storage in karst regions".GLOBAL ECOLOGY AND CONSERVATION 21(2020).