干旱区生态环境知识资源中心(Arid): Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China

Arid

DOI	10.1016/j.ecolind.2022.108797
	Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China
	Pan, Ninghui; Du, Qinqin; Guan, Qingyu; Tan, Zhe; Sun, Yunfan; Wang, Qingzheng
通讯作者	Guan, QY
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2022
卷号	138
英文摘要	Ecological security assessments are used to reflect the regional ecological security situation because they can provide a basis for the construction of regional ecological security patterns (ESPs). Using the land use/land cover (LULC) data, the ecological security status of the Hexi Region was analyzed. On this basis, the ecological source was extracted, the ecological resistance surface was established, and the ecological corridor and node were identified, and constructed the ESP of the Hexi Region. The results show that: 1) During 2000-2015, approximately 70% of the study area's ecological security index values were < 0.1. The ecosystem security levels were higher in the southeast and lower in the northwest. 2) The total area of ecological sources was 6828.75 km2, and it is less distributed in the west; the interconnection degree among the sources was low; and patch fragmentation was obvious. 3) A total of 134 ecological corridors were extracted, with a total length of 15572.8 km2, and 44 ecological nodes were identified. The distributions of the ecological corridors and nodes had spatial consistency and were mainly concentrated in the central and southern parts of the Qilian Mountains. The method of ecological security assessment based on LULC data can be popularized and applied to the evaluation of the ecological security in regions having a lack of research data or difficulty in obtaining data. This study can provide guiding significance for the optimization of ecosystem elements and the improvement of regional ESPs in the study area or other arid areas.
英文关键词	Land use land cover data Ecosystem health Ecosystem risk Ecological security pattern Hexi Region
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:000792770100003
WOS关键词	LINKING ECOSYSTEM SERVICES ; LAND-USE CHANGE ; COVER CHANGES ; RISK-ASSESSMENT ; DRIVING FACTORS ; HEALTH ; CITY ; GUANGZHOU ; MODEL ; PRESSURE
WOS类目	Biodiversity Conservation ; Environmental Sciences
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/2XILL650/392311
推荐引用方式 GB/T 7714	Pan, Ninghui,Du, Qinqin,Guan, Qingyu,et al. Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China[J],2022,138.
APA	Pan, Ninghui,Du, Qinqin,Guan, Qingyu,Tan, Zhe,Sun, Yunfan,&Wang, Qingzheng.(2022).Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China.ECOLOGICAL INDICATORS,138.
MLA	Pan, Ninghui,et al."Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China".ECOLOGICAL INDICATORS 138(2022).