滨海城区土地利用格局时空演变及生态服务价值研究--以大连市旅顺口区为例

Spatiotemporal Variation Characteristics of Ecosystem Service Value Based on Land Use Change in Coastal City Subdivision--A Case Study on Lüshunkou District in Dalian City

基于大连市旅顺口区4期土地利用数据,应用土地利用矩阵等方法揭示了2006—2015年旅顺口区土地利用方式和生态服务价值的时空变化特征。结果发现:①旅顺口区土地利用呈现出从未利用地、耕地转移至建设用地的趋势,北部建设用地与耕地之间转换最为剧烈。②近10年间旅顺口区生态服务价值降低了5.63亿元,“建设用地→林地”是生态服务价值提升效率最高的转换类型。③只有林地的生态敏感性指数大于1,说明旅顺口区生态服务价值缺乏弹性。

By using land use matrix and other methods,based on the land use data of four time series of Lüshunkou District in Dalian City,this paper revealed the spatiotemporal characteristics of land use change and ecological service value from 2006 to 2015.The results showed that:①The land use in Lüshunkou District showed a trend of transferring from unused land and cultivated land to construction land.②In the past 10 years,the ecosystem service value of Lüshunkou District has decreased by 563 million yuan,and the conversion from construction land to forest land is the most efficient conversion type.③Only the sensitivity index of forestland was greater than one,indicating that the ecosystem service value in Lüshunkou District was inelastic.