Emergy Analysis On Complex Ecological Economic System of Agro-pastoral Transitional Zone-A Case of Dingxi in Gansu

doi:10.11733/j.issn.1007-0435.2020.06.022

Acta Agrestia Sinica ›› 2020, Vol. 28 ›› Issue (6): 1673-1681.DOI: 10.11733/j.issn.1007-0435.2020.06.022

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Emergy Analysis On Complex Ecological Economic System of Agro-pastoral Transitional Zone-A Case of Dingxi in Gansu

LU Yan-hua¹, LI Guang¹, MA Wei-wei¹, WANG Jun², LIU Qiang², ZHANG Shang-wen¹

1. College of forest, Gansu Agriculture University, Lanzhou, Gansu Province 730070, China;
2. College of information Science and Technology Gansu Agriculture University, Lanzhou, Gansu Province 730070, China

Received:2020-04-14 Revised:2020-07-10 Published:2020-12-02

农牧交错带复合生态经济系统的能值分析—以甘肃省定西市为例

陆燕花¹, 李广¹, 马维伟¹, 王钧², 刘强², 张尚文¹

1. 甘肃农业大学林学院, 甘肃兰州 730070;
2. 甘肃农业大学信息科学技术学院, 甘肃兰州 730070

通讯作者: 李广
作者简介:陆燕花(1993-),女,甘肃兰州人,硕士研究生,主要从事水土保持与荒漠化防治方面的研究,E-mail:1476336254@qq.com
基金资助:
甘肃省财政专项（GSCZZ-20160909）；甘肃省重点人才项目（LRYCZ-2020-1）；甘肃省高等学校协同创新团队项目（2018C-16）；甘肃省重点研发计划（18YF1NA070）资助

Abstract

Abstract: In order to objectively and accurately evaluate the development status of the composite ecological economic system in dingxi city,the sustainable development and health levels of eco-economic system in dingxi city from 2009 to 2018 were comprehensively evaluated through emergy-based indicators system built on the basis of emergy analysis. The results showed that dingxi City complex ecological economic system was an underdeveloped economic system and mainly based on agricultural development,with low level of industrialization,overburdened population and great environmental pressure. Although the total emergy value showed an increasing trend,up to 7.96 times increase in the total emergy use during 2009 to 2018. But,in general,the consumption of non-renewable resources was the main power to support the operation of the whole system. The ratio of waste to renewable resources,environmental load rate,emergy per person,the per capite electricity emergy increased from 17.26%,17.19,7.93×10¹⁵sej·person^-1,2.83×10¹³sej·person^-1 in 2009 to 31.89%,91.23,6.58×10¹⁶sej·person^-1,7.42×10¹³sej·person^-1 in 2018,respectively. Meanwhile,the ratio of electricity to total emergy and capacity of population decreased from 0.0036,1.62×10⁵person in 2009 to 0.0011,3.10×10⁴ person in 2018,respectively;the emergy sustainability index dropped from 467.07 in 2009 to 69.34 in 2018;health emergy index decreased from 1.10 in 2009 to 0.28 in 2018. In conclusion,the sustainable development leve of dingxi complex ecological economic system was not optimistic from 2009 to 2018.and health level should to be improved.

Key words: Agro-pastoral transitional zone, Eco-economic system, Emergy analysis, Dingxi city

摘要： 为了客观、准确的评价定西市复合生态经济系统的发展现状，本研究运用能值分析方法构建了评价指标体系对2009-2018年定西市复合生态经济系统的可持续发展、健康水平进行综合分析和评价。结果表明：2009-2018年定西市复合生态经济系统是一个以农业发展为主的经济不发达系统，工业化发展水平较低，人口处于超负荷状态，环境压力大。总能值呈现逐渐增加的变化趋势，增长了7.96倍；废弃物与可更新资源能值比、环境负荷率、人均能值量、人均电力能值从2009年的17.26%，17.19，7.93×10¹⁵sej·人^-1，2.83×10¹³ sej·人^-1增加到了2018年的31.89%，91.23，6.58×10¹⁶sej·人^-1，7.42×10¹³sej·人^-1；电力能值比和人口承载量分别从2009年的0.0036和1.62×10⁵人降低到了2018年的0.0011和3.10×10⁴人；能值可持续指数和健康能值指数由2009年的467.07，1.10降低到了2018年的69.34，0.28。由此可以看出，2009-2018年定西市复合生态经济系统的可持续发展水平不容乐观，健康水平有待提升。

关键词: 农牧交错带, 生态经济系统, 能值分析, 定西市

CLC Number:

LU Yan-hua, LI Guang, MA Wei-wei, WANG Jun, LIU Qiang, ZHANG Shang-wen. Emergy Analysis On Complex Ecological Economic System of Agro-pastoral Transitional Zone-A Case of Dingxi in Gansu[J]. Acta Agrestia Sinica, 2020, 28(6): 1673-1681.

陆燕花, 李广, 马维伟, 王钧, 刘强, 张尚文. 农牧交错带复合生态经济系统的能值分析—以甘肃省定西市为例[J]. 草地学报, 2020, 28(6): 1673-1681.

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Emergy Analysis On Complex Ecological Economic System of Agro-pastoral Transitional Zone-A Case of Dingxi in Gansu

农牧交错带复合生态经济系统的能值分析—以甘肃省定西市为例

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