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新疆阿克苏地区农业生态系统的脆弱性及其驱动因素分析

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为研究新疆阿克苏地区农业生态系统的脆弱性及其驱动因素,以阿克苏9个县(市)为研究对象,从压力、敏感性、恢复力3个方面选取20项指标,建立阿克苏农业生态系统脆弱性评价体系。采用熵权法确定指标权重,用综合指数法对各县(市)农业生态系统的脆弱性进行计算和分类,通过主成分分析法研究农业生态系统脆弱性的主要驱动因素。结果表明:①压力的权重为36。245%,敏感性的权重为38。005%,恢复力的权重为25。750%。②阿克苏各县(市)农业生态系统脆弱性不一,以高度脆弱和中度脆弱为主,以微度脆弱为辅。极度脆弱的县有1个,占阿克苏地区总面积的11。0%,高度脆弱的县(市)有3个,占阿克苏地区总面积的41。7%;中度脆弱的县有2个,占阿克苏地区总面积的14。4%;微度脆弱的县有3个,占阿克苏地区总面积的32。8%。③阿克苏农业生态系统脆弱性的主要驱动因素分别是农业生产条件、气候状况、农业经济状况、农业机械化水平、极端天气和森林覆盖情况,其中农业生产条件是首要驱动因素。因此,降低阿克苏地区农业生态系统脆弱性的重点是改善中高度脆弱区的农业生产条件,降低农业生态系统的敏感性。
Analysis of the Vulnerability of Xinjiang's Aksu Prefecture Agricultural Ecosystem and Its Driving Factors
This study investigates the vulnerability and driving factors of the Xinjiang's Aksu Prefecture agricultural ecosystem to provide reference for the sustainable development of agriculture in Aksu.Using 9 counties in Aksu as research objects,this study selected 20 indicators to construct an agricultural ecosystem vulnerability evaluation index system based on stress,sensitivity,and resilience.The entropy weight method was used to determine the weight of each indicator,and the comprehensive index method was used to calculate and classify the ecological vulnerability of each county.Principal component analysis was employed to identify the main driving factors of agricultural ecosystem vulnerability in this region.The results showed that:① The weight of pressure is 36.25%,sensitivity is 38%,and resilience is 25.75%.② The vulnerability of the agricultural ecosystem in Aksu varies,with high and moderate vulnerability being predominant,and slight vulnerability being supplementary.There is one extremely vulnerable county,three highly vulnerable counties,two moderately vulnerable counties,and three slightly vulnerable counties,accounting for 11%,41.7%,14.4%,and 32.8%of the total area of the region,respectively.③ The main driving factors of agricultural ecosystem vulnerability in Aksu are agricultural production conditions,climate conditions,agricultural economic conditions,agricultural mechanization level,extreme weather,and forest cover,with agricultural production conditions being the primary driving factor.Therefore,the focus for reducing the vulnerability of the Aksu agricultural ecosystem should be on improving agricultural production conditions in moderately and highly vulnerable areas and reducing the sensitivity of the agricultural ecosystem.

agro-ecosystemvulnerabilitydriving factorsprincipal component analysis

刘国云、布美热木·克力木、木合塔尔·艾买提

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喀什大学 生命与地理科学学院,新疆 喀什 844000

农业生态系统 脆弱性 驱动因素 主成分分析

南疆经济与社会发展研究中心项目

NFK2206

2024

农业科学研究
宁夏大学

农业科学研究

影响因子:0.671
ISSN:1673-0747
年,卷(期):2024.45(2)