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武汉市土地利用变化及对生态系统服务价值的影响
1,2, 1,2

(1.yunnancaijingdaxue guotuziyuanyuchixufazhanyanjiusuo, kunming 650221; 2.yunnancaijingdaxue jingzhunfupinyufazhanyanjiuyuan, kunming 650221)

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Evolution of Land Use Patterns in National Central Cities and Its Impact on Ecosystem Service Values: A Case Study of Wuhan City
LIU Fenglian1,2, YANG Renyi1,2

(1.institute of land resources and sustainable development, yunnan university of finance and economics, kunming 650221, china; 2.institute of targeted poverty alleviation and development, yunnan university of finance and economics, kunming 650221, china)

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备注

为分析武汉市土地利用变化及对生态系统服务价值(ESV)的影响,利用1990—2015年遥感影像数据,通过土地利用动态度、土地利用转移矩阵、生态系统服务价值和生态贡献率等方法,揭示了武汉市土地利用变化规律及对ESV的影响。结果表明:(1)武汉市土地利用结构变化显著,耕地、林地和未利用地减少,建设用地和水域增加。土地利用的转移主要发生在耕地向建设用地的转移。(2)研究期内武汉市土地利用综合动态度远超同时期全国水平,建设用地的动态度远高于其他用地类型,城市化建设处于增速。(3)武汉市ESV总量增加,水域和草地的ESV增加,耕地、林地和未利用地的ESV减少。研究期内各项ESV,以水文调节和水资源供给为主,单项ESV变化最大的是水文调节。(4)水域、耕地和林地对ESV变化的生态贡献率较大,三者生态贡献率之和在98%以上,是生态服务的主要贡献者,也是ESV变化的敏感因子。
In order to analyze land use change and its impact on ecosystem service value(ESV)in Wuhan, remote sensing images from 1990 to 2015 were used to reveal land use change patterns and their influence on ESV through the methods of land use dynamic attitude, land use transfer matrix, ecosystem service value and ecological contribution rate. The results showed that the land use structure of Wuhan had changed significantly, the cultivated land, forest land and unused land had decreased, and the construction land and water area had increased; the major land use shifts in Wuhan occurred from arable land to construction land; the comprehensive dynamic attitude of land use in Wuhan was far higher than that of the whole country, the dynamic attitude of construction land was much higher than those of other land types, and the urbanization construction was on the increasing speed; total ESV in Wuhan increased, and ESVs of water area and grassland increased, while ESVs of cultivated land, forestland and unused land decreased; the value of ecosystem service was dominated by hydrological regulation and water supply, and the biggest change of single ESV was hydrological regulation; the total ecological contribution rate of water area, cultivated land and forest land to ESV was greater than 98%, which was the main contributor of ESV and the sensitive factor on ESV change.
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