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作 者:马海虎[1,2] 王奇[1,3] 柯强[1,3] 李光明[3] 徐竟成[3]
机构地区:[1]温州大学生命与环境科学学院,浙江温州325027 [2]浙江大学环境工程系,杭州310029 [3]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海200092
出 处:《生态经济》2008年第10期131-135,141,共6页Ecological Economy
摘 要:文章构建了温州城市生态系统演化分析的指标体系,应用信息熵法建立了量化模型对温州生态系统演化和可持续发展能力进行分析。结果表明:造林面积和人均消费性支出指标对温州城市系统社会经济发展水平以及其与自然生态系统的协调程度影响最大,工业粉尘排放量和迹地更新指标对温州城市代谢系统的发展水平以及协调程度影响最大。近10年来,温州城市生态系统经历了氧化型代谢(1996~1999)—还原型代谢(2000~2002)—氧化型代谢(2003~2005)三个阶段的演变,表明温州城市代谢系统的发展水平以及协调程度不稳定,与自然生态系统协调程度降低,城市生态系统的协调度有待提高,系统活力有待改善,温州城市生态系统应重点调控温州的工业企业,重视水土流失问题,加强封山育林工作。温州城市可持续发展能力也分为三个阶段:可持续发展能力降低阶段(1996~2000),基本稳定提高阶段(2001~2004),二次降低阶段(2005),这表明温州生态系统已处于不稳定状态,在调整的过程中更应该注意调整政策稳定性、适用性和合理性。According to the characteristics of urban ecosystem, the indicator system of the evolution of urban ecosystem was set up and information entropy was applied to the evolution of urban ecosystem and ability of sustainable development in Wenzhou from 1996 to 2005. The results showed that total afforestation area, per capita annual expenditure for consumption by urban residents , industrial soot emission and the area of reforestation had the most obvious effect on urban ecosystem in different indicator subsystems, respectively. The urban ecosystem coordination degree needs to be raised and livingness should be strengthened. It underwent a complicated course from destructive metabolism to regenerative metabolism, then destructive metabolism again. Evolution of urban ecosystem and sustainable development were also divided into three stages during the period of 1996-2005, but time milestones were different. Measures should be taken to accelerate the various subsystems, rapid and coordinated development, and to maintain ecological cycle of sustainable development by local government and which pay attention to stability, applicability and rationality of policies implement due to ecosystem instable.
分 类 号:F061.3[经济管理—政治经济学] X171[环境科学与工程—环境科学]
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