干旱区生态环境知识资源中心(Arid): Integrating ecosystem services and rocky desertification into identification of karst ecological security pattern

Arid

DOI	10.1007/s10980-020-01100-x
	Integrating ecosystem services and rocky desertification into identification of karst ecological security pattern
	Gao, Jiangbo; Du, Fujun; Zuo, Liyuan; Jiang, Yuan
通讯作者	Gao, JB
来源期刊	LANDSCAPE ECOLOGY
ISSN	0921-2973
EISSN	1572-9761
英文摘要	Context Most researchers focus on the identification of ecological security pattern. However, there is a lack of research on the ecological security pattern of karst fragile area with significant human-land conflict and important ecological shelter function. Objectives The main objectives of this paper were to add the rocky desertification to the construction of ecological security pattern and provide reference for ecological reconstruction of karst ecological fragile area. Methods Based on the rocky desertification in karst area, this study added a new index in resistance surface correction, and put rocky desertification in the analysis of ecosystem services and ecological sensitivity. Corridors were identified by the least-cost path and circuit theory. Combined with the expansion probability of construction and cultivated land, this study developed a classification system of ecological source area and corridor. Results The ecological source areas is 24,254 km(2)and account for 48.4% of the total area. There are 19 corridors, including 6 least-cost path corridors, 10 optimal current density corridors, and 3 river corridors. A total of 18 ecological barrier points and 8 ecological nodes are distributed on the corridors. The study area consisted of four ecological functional areas: ecological core area, ecological buffer area, ecotone area, and living-productive area, with areas of 32,044 km(2), 9542 km(2), 6811 km(2), and 1398 km(2), respectively. Conclusions The construction of the ecological security pattern enhances the function of ecological barriers and provides a scientific basis for ecological conservation and restoration in a later stage of the karst area in the Wujiang River basin.
英文关键词	Ecological security pattern Karst ecosystem services Rocky desertification Minimal cumulative resistance Circuit theory
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000564515800001
WOS关键词	QUANTITATIVE ATTRIBUTION ; LANDSCAPE CONNECTIVITY ; SPATIAL-PATTERN ; CIRCUIT-THEORY ; SOIL-EROSION ; NETWORK ; AREAS ; LAND ; CONSTRUCTION ; SIMULATION
WOS类目	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328194
作者单位	[Gao, Jiangbo; Du, Fujun; Zuo, Liyuan; Jiang, Yuan] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; [Du, Fujun; Zuo, Liyuan; Jiang, Yuan] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gao, Jiangbo,Du, Fujun,Zuo, Liyuan,et al. Integrating ecosystem services and rocky desertification into identification of karst ecological security pattern[J]. 中国科学院地理科学与资源研究所.
APA	Gao, Jiangbo,Du, Fujun,Zuo, Liyuan,&Jiang, Yuan.
MLA	Gao, Jiangbo,et al."Integrating ecosystem services and rocky desertification into identification of karst ecological security pattern".LANDSCAPE ECOLOGY