区域农业生态系统可持续发展指标体系及其应用

A study on the sustainable development indicator system and its application for evaluation of regional agro-ecosystems

建立可持续发展评价指标体系已成为区域水平上研究可持续发展的重要内容。论文从可持续发展概念与内涵入手,以杭州市萧山区为例,探讨了建立评价指标体系和指标定量化的方法。通过建立该区域农业生态系统可持续发展评价指标体系和可持续发展度模型,定量描述了系统在近10年来的波动变化状态。发展度模型包括发展位、发展势和协调度3个方面。研究表明,该区域发展位一直保持持续稳定的上升趋势;发展势也表明了系统整体状况愈来愈靠近系统规划值;系统协调度在波动中逐渐增长,表明各组分之间耦合关系加强;系统整体发展度在波动中逐渐提高。从研究可知,该区近10年来经济保持快速增长,人民生活水平、科技和卫生等领域得到很大改善,人口得到有效控制;自然资源保护和生态环境建设虽然近年来投入逐渐增加,但由于工业发展和人口增长很快,使该子系统仍需加大投入强度。

It is significant for studies on sustainable development at regional level to establish a sustainable development indicator system for evaluation.Methods for establishing the indicator system and quantifying indicators were explored in the paper,based on the meaning of sustain-able development and a case study of Xiaoshan district in Hangzhou City.The fluctuation of sus-tainable development status of the Xiaoshan system during last decade was quantitatively de-scribed using the established indicator system and a model of the degree of sustainable develop-ment(D).D was defined as a function of development location(L),development potential(P)and harmonious degree(H).The results showed that L of the Xiaoshan system was increasing steadily;the status of the system,inferred from the trend of P,was more and more approaching the planned goal;the H of the system was gradually progressed,which meant that the coupling among the in-dicators was strengthened;and that D was increased in fluctuation.The economy was growing quickly in the past decade;the conditions of people's life,science and technology,and medical care were greatly improved;the increasing rate of population was also controlled.However,natu-ral resource conservation and construction of ecological environment ,due to increasing of popu-lation and development of industry,should be further strengthened although inputs were increased in recent years.Recommendations were also made for better development of the system in the fu-ture,and it is believed that the study would be a good model for studying other re gions.