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经济加速发展地区土地生态服务价值动态变化研究——以仪征市为例
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摘要:
研究经济加速发展地区土地利用变化对土地生态服务价值变动的影响,对区域经济发展与土地利用政策的制定具有重要意义。在综合已有研究的基础上,通过分析仪征市1995~2005年土地利用变化,估算其各年土地生态服务价值量,并探讨经济发展与生态服务价值变化的关系。结果表明,研究期内仪征市土地利用变化速度较快,且前5年土地利用变化较慢,其动态度仅为0.11%,而后5年土地利用变化较快,其动态度达1.18%;土地生态系统服务价值从1995年的256154.36万元逐年增加到2001年的257298.28万元,然后急剧下降到2005年的255250.19万元,该变化主要受2001年后仪征市经济高速增长及退耕还林政策的影响而致。这表明,经济的高速增长在一定程度上以牺牲土地生态环境为代价,今后应将经济发展与生态环境保护相统一,促进地区社会经济与生态环境的可持续发展。
关键词:  土地利用,生态服务价值,动态变化,仪征市
DOI:
基金项目:
Dynamic change of land ecosystem service value in fast developing regions——A case study of Yizhen city
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Abstract:
Studying the influence of land-use change on land ecosystem service value change is very important to region economic development and land-use policy establishment.On the foundation of synthesizing the researches in existence,this text discusses the relation between economic development and land ecosystem service value change through analyzing the land-use change of Yizhen city from 1995 to 2005 and estimating land ecosystem service value of each year.The result indicates that the speed of land-use change was relatively quick in this period,and relatively slow in the first 5 years,its dynamic state degree was only for 0.11%,but relatively quick in the last 5 years,its dynamic state degree reached to 1.18%;land ecosystem service value increased from 2561.5436 million yuan in 1995 to 2572.9828 million yuan in 2001,then quickly descended to 2552.5019 million yuan in 2005,this change is mainly subjected to quick economic growth and reforesting policy of Yizhen city after the year 2001.Above research proves that high economic growth speed to some extent sacrificed land ecosystem environment.Henceforth,economic development should be unified mutually with ecosystem environmental protection so as to promote sustainable development of social economy and ecosystem environment.
Key words:  land use,ecosystem service value,dynamic change,Yizhen city

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