基于遥感和GIS的天津滨海新区30年间生态用地变化分析
Dynamic of Ecological Land Use Change During 30 Years in Binhai New District,Tianjin
  
DOI:
中文关键词:  滨海新区  生态用地  遥感  GIS  生态服务功能
英文关键词:Binhai New Distict  ecological land  remote sensing  GIS  ecosystem service
基金项目:国家自然科学基金项目(51278330);天津市自然科学基金重点项目(11JCZDJC24500)
作者单位
李洪远 南开大学环境科学与工程学院 
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中文摘要:
      利用天津滨海新区1979年和2004年的TM影像以及2009年的spotSPOT影像资料,运用通过目视解译方法及GIS软件的空间叠加分析功能,获取其了研究区土地利用/覆盖变化数据,。以此为基础,结合相关资料研究了滨海新区生态用地的总体特征、生态用地与非生态用地以及生态用地内部的相互转化特点,并对这些变化的驱动其因素进行了分析。结果表明:1979年-2009年,研究区的生态用地总面积在不断下降,2004年前后分别有56 424.74 hm2和8 874.35 hm2的生态用地转变为农田和建设用地;在生态用地内部,林地和城市绿地的比例太低,生态服务功能较高的滩涂大量转变成盐田,部分海域变为滩涂,。研究区生态用地变化的主要驱动因素包括是自然因素,、城市扩张及经济因素。
英文摘要:
      Based on the remote sensing TM images in 1979 and 2004 and the SPOT image in 2009 ,as well as relevant information, the study use the visual inter- pretation to obtain the information of utilizing the land of Binhai New District and analyzes the integrated characteristic of the ecological land ,the changing characteristics between ecological land and non-ecological land, as well as the driving factors. The results showed that from 1979 to 2009,the area of total ecological land decreased, before and after 2004,56424.74hm2 and 8874.35hm2 ecological land were separately translated to farmland and construction land ,the ratio of forest and urban green land is low, the beach was largely translated to brine,part of sea area was translated to beach, the driving factors were responsible for the land use change include natual factor,urban sprawl and economic factors.
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