干旱区生态环境知识资源中心(Arid): Fuzzy evaluation of the ecological security of land resources in mainland China based on the Pressure-State-Response framework

Arid

DOI	10.1016/j.scitotenv.2021.150053
	Fuzzy evaluation of the ecological security of land resources in mainland China based on the Pressure-State-Response framework
	Cheng, Haoran; Zhu, Likai; Meng, Jijun
通讯作者	Meng, JJ (corresponding author), Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	804
英文摘要	The extensive exploitation and use of land resources has caused a variety of land degradation problems including soil erosion, desertification and salinization in China, which gradually raises our concerns of ecological security. However, there still lacks an understanding of ecological security of land resources at the national scale. More -over, few studies conduct the validation and uncertainty analysis of models for ecological security evaluation, which tends to undermine the reliability of evaluation results. Here we followed the Pressure-State-Response (PSR) framework to systematically construct the evaluation index system for ecological security, and developed fuzzy evaluation models to convert the original index data into individual index scores. After that, we used the multiplicative model to aggregate the individual index scores into a comprehensive evaluation score for the eco-logical security level of land resources across the Chinese mainland. To enhance the reliability of evaluation re-sults, we validated our results by comparing with the proxies of ecological effects including landscape pattern index, land use change rate and net primary productivity, and made uncertainty analysis using the Monte Carlo method. Finally, we applied an obstacle model to quantify the negative contribution of pressure, state and response which would deter the security from achieving the optimal condition. The results showed that our model could effectively reflect the ecological security level of land resources. The pressure was higher in the east and lower in the west of China, and that of urban areas was much higher than the rural areas, reflecting the disturbance of socio-economic activities. The state condition was strongly related to natural conditions. The response level, determined mainly by socio-economic conditions, was higher in the southeast and northwest of China but lower in the northeast and southwest of China. The ecological security level was structured by natural and socio-economic conditions and demonstrated a high level of security in the southeast while a low level in the northwest. Developed urban areas often had low security due to strong socio-economic pressure. Areas with un-favorable natural and environmental conditions had poor state level, which tended to cause lower response capability, and consequently led to a low security level. Our research improves the understanding of national ecological security and its obstacle factors, which supports the management and sustainable use of land resources at the national scale. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Land resources Multiplicative model Obstacle factors Model validation The Hu Huanyong Line
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000701855500005
WOS关键词	ECOSYSTEM SERVICE ; CLIMATE-CHANGE ; HEAT-STRESS ; PATTERNS ; URBANIZATION ; HEALTH ; CARBON ; VULNERABILITY ; BIODIVERSITY ; FORESTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364615
作者单位	[Cheng, Haoran; Meng, Jijun] Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China; [Zhu, Likai] Linyi Univ, Coll Resources & Environm, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi 276000, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Haoran,Zhu, Likai,Meng, Jijun. Fuzzy evaluation of the ecological security of land resources in mainland China based on the Pressure-State-Response framework[J]. 北京大学,2022,804.
APA	Cheng, Haoran,Zhu, Likai,&Meng, Jijun.(2022).Fuzzy evaluation of the ecological security of land resources in mainland China based on the Pressure-State-Response framework.SCIENCE OF THE TOTAL ENVIRONMENT,804.
MLA	Cheng, Haoran,et al."Fuzzy evaluation of the ecological security of land resources in mainland China based on the Pressure-State-Response framework".SCIENCE OF THE TOTAL ENVIRONMENT 804(2022).