基于格局-质量-功能的高寒草甸区生态脆弱性分析——以云南迪庆为例

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Abstract This study established a pattern-quality-function framework to evaluate the spatial and temporal characteristics of ecosystem vulnerability in the alpine meadow area of northwestern Yunnan Province. Additionally, a geographically weighted regression (GWR) model was utilized to analyze the spatial heterogeneity of driving factors on ecosystem vulnerability changes. The results showed that: (1) The ecosystem vulnerability index (EVI) decreases from north to south in the alpine meadow area of northwest Yunnan. (2) From 2000 to 2020, the ecosystem vulnerability index in the northern part of Diqing showed an increasing trend, with a maximum increase of 0.30, while a decreasing trend was detected in most areas in the central and southern parts of the region. (3) The influencing factors have significant impacts on the ecosystem vulnerability. The climate factors were sensitive to ecosystem vulnerability in the northern and southern parts of Diqing. Factors such as economic(GDP) and population(POP) were the main contributors to increasing the regional ecosystem vulnerability.

Key words： pattern-quality-function ecosystem vulnerability driver analysis alpine meadow area Diqing in Yunnan

Received: 17 September 2023

PACS:

X171.4

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	LI Zi-hui
	SU Xiang-yuan
	TIAN Tian
	ZHANG Ya
	CHEN Qing-song
	ZHU Kang-wen
	SONG Dan
	ZHANG Yan-jun
	BA Yong
	CHEN Wei-zhi
	DONG Chun-feng
	YANG Meng-jiao
	HOU Zheng

Cite this article:

LI Zi-hui,SU Xiang-yuan,TIAN Tian等. Ecological vulnerability analysis of alpine meadow area based on pattern-quality-function ratio: take Diqing in Yunnan as an example[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(4): 2273-2285.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I4/2273

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