干旱区生态环境知识资源中心(Arid): 基于能值分析的榆林市沙地生态经济系统可持续发展性测度

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	基于能值分析的榆林市沙地生态经济系统可持续发展性测度
其他题名	A measurement of sustainable development of eco-economic system in the sandy land of Yulin city,Shaanxi province based on emergy analysis
	李晓格; 张颖
来源期刊	中国水土保持科学
ISSN	2096-2673
出版年	2021
卷号	19 期号:3 页码:2096-2673
中文摘要	生态经济可持续发展是中国可持续发展的重要组成部分。为了分析生态脆弱区生态经济系统的可持续性,以榆林市沙地为例,采用能值分析方法,构建了包括社会、经济和自然子系统综合发展指数的生态经济评价体系,系统评估20082018年榆林市的生态经济发展情况及可持续性。结果表明:20082018年,榆林市能值使用总量从1.97 * 10~(23)增加到5.33 * 10~(23) sej,不可更新资源能值占比为80.49%~85.20%,说明榆林市经济发展主要源于对本地不可更新资源的开发和利用;能源自给率达到85%以上,外部输出能值不足,长期来看能源利用结构不合理;环境负载率由11.92%增长到20.53%,可持续发展性能指标ESID由253.0下降到163.60,表明榆林市生态经济呈现不可持续发展的态势,系统资源对经济发展的支撑能力不断下降。
英文摘要	[Background]Eco-economy sustainable development is an important part of China' s sustainable development.At present,research on the eco-economic sustainability of ecological fragile zone in semi-arid desert area is relatively weak.Yulin city is located in the middle section of the farming pastoral ecotone in northern China and vulnerable to ecological environment.The 42% of its northern area is Mu Us Sandy Land.Studying the sustainable development of its eco-economic system is of significance for promoting environmental economic governance and sustainable development in ecologically fragile areas.[Methods]Collecting the macroeconomic and social development data and meteorological data of Yulin city from 2008 to 2018,using the emergy analysis method,the original data was divided into 5 categories according to emergy elements:renewable resources,non-renewable resources,input flow,output flow,and waste flow.The emergy of different elements was calculated,the emergy analysis table was compiled,the eco-economic evaluation system was constructed,it included the comprehensive development index of social,economic and natural subsystems,and the eco-economic development and sustainability of Yulin city from 2008 to 2018 was evaluated.[Results]1)In general,from 2008 to 2018,the total use of emergy in Yulin city increased from 1.97 * 10~(23) to 5.33 * 10~(23) sej,and the emergy of non-renewable resources accounted for 80.49%-85.20%,belonging to the economic mode of high energy consumption.2)From the perspective of social subsystem,the emergy per person of Yulin city increased from 4.60 * 10~(12) to 1.22 * 10~(13) sej/m~2,increasing by 2.65 times.Emergy intensity was constantly strengthening,but the population carrying capacity decreased from 232 000 to 137 000,the ecological environment was not enough to support population development.3)From the perspective of economic subsystem,the emergy money ratio decreased from 1.36 * 10~(13) to 9.17 * 10~(12) sej/$.The speed of economic development and urbanization was accelerated,but the emergy load ratio decreased from 10.13 to 7.18,the emergy production efficiency reduced.4)From the perspective of ecological subsystem,the energy self-support ratio reached over 85%,the environment load ratio increased from 11.92% to 20.53%,and the environmental pressure was increasing.The emergy index for sustainable development ESID dropped from 253.0 to 163.60.[Conclusions]The economic development of Yulin city mainly comes from the development and utilization of local non-renewable resources.The external output energy value is insufficient.In the long run,the energy utilization structure is unreasonable,the eco-economy system presents an unsustainable development trend,and the support capacity of system resources for economic development is constantly declining.Thus the sustainable ability of regional ecoeconomy can be improved from the aspects of regional industrial waste gas treatment,energy structure adjustment,external resource input,etc.
中文关键词	能值分析 ; 生态经济系统 ; 可持续发展 ; 榆林
英文关键词	emergy analysis eco-economic system sustainable development Yulin city
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:7008355
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365480
作者单位	李晓格, 北京林业大学经济管理学院, 北京 100083, 中国.; 张颖, 北京林业大学经济管理学院, 北京 100083, 中国.
推荐引用方式 GB/T 7714	李晓格,张颖. 基于能值分析的榆林市沙地生态经济系统可持续发展性测度[J],2021,19(3):2096-2673.
APA	李晓格,&张颖.(2021).基于能值分析的榆林市沙地生态经济系统可持续发展性测度.中国水土保持科学,19(3),2096-2673.
MLA	李晓格,et al."基于能值分析的榆林市沙地生态经济系统可持续发展性测度".中国水土保持科学 19.3(2021):2096-2673.