干旱区生态环境知识资源中心(Arid): Spatial heterogeneity of soil organic carbon in a karst region under different land use patterns

Arid

DOI	10.1002/ecs2.3077
	Spatial heterogeneity of soil organic carbon in a karst region under different land use patterns
	Zhang, Zhenming 1,2; Huang, Xianfei 1,2,3; Zhou, Yunchao 1,2
通讯作者	Zhou, Yunchao
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2020
卷号	11 期号:3
英文摘要	Using the grid-based sampling method, 2755 soil profiles consisting of 22,057 soil samples were sampled and analyzed to study the spatial distribution and storage of soil organic carbon (SOC) in the Houzhai River Basin in Guizhou Province, a typical karst region in southwestern China. The results suggest that the total levels of SOC stored in the 0-10, 0-20, 0-30, and 0-100 cm soil layers of the Houzhai River Basin are approximately 1.48 x 10(8), 2.65 x 10(8), 3.44 x 10(8), and 5.39 x 10(8) kg C, respectively. SOC content and soil bulk density levels were found to vary depending on the land use. In the 0-50 cm soil layer, forest SOC content levels (including arbor forests, arbor-shrub mixed forests, shrubland, and shrub grassland) are generally higher than those of uncultivated land, followed by grassland and cropland (including paddy fields, arid land, sloping cropland, and abandoned cropland), gardens, and orchard. It is believed that land use is a vital factor directly affecting carbon storage patterns in the study area. Soil thickness, rock outcrop, and slope gradients are the main factors in arrangement of land use by local governments and peasants. This study has established a feasible method for assessment of SOC stock in karst mountainous areas. The findings of this study are applicable to other karst mountainous regions globally.
英文关键词	karst landform land use rock outcrop slope gradient soil organic carbon soil thickness southwestern China
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:000530422900006
WOS关键词	LOESS PLATEAU ; SLOPE GRADIENT ; STORAGE ; SEQUESTRATION ; FRACTIONS ; EROSION ; MATTER ; STOCKS ; POOLS ; VARIABILITY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318872
作者单位	1.Guizhou Univ, Inst Forest Resources & Environm Guizhou, Coll Forestry, Key Lab Forest Cultivat Plateau Mt Area, 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,Huang, Xianfei,Zhou, Yunchao. Spatial heterogeneity of soil organic carbon in a karst region under different land use patterns[J],2020,11(3).
APA	Zhang, Zhenming,Huang, Xianfei,&Zhou, Yunchao.(2020).Spatial heterogeneity of soil organic carbon in a karst region under different land use patterns.ECOSPHERE,11(3).
MLA	Zhang, Zhenming,et al."Spatial heterogeneity of soil organic carbon in a karst region under different land use patterns".ECOSPHERE 11.3(2020).