基于RS和GIS的LUCC研究——以重庆市万州区为例

通过利用遥感、地理信息系统相结合的技术方法,解译万州区2000年与2004年2期遥感影像,获得该地区相关数据的矢量图及定量统计数据,结合万州区自身特点,运用包含4个指数在内的指标分析了土地利用和土地覆盖变化(LUCC)特征,为该区土地的合理利用提供决策依据。结果表明:土地整体变化不大,单一动态度则各有千秋,其中较为明显的是建设用地增长突出,以及林地和耕地的减少,因此为实现该区可持续发展,必须采取措施保护耕地和林地,加强城市建设用地的管理。

Analysis on LUCC Based on RS and GIS:A Case Study of Wanzhou, Chongqing

RS(Remote Senging) and GIS were applied to interpret the remote sensing image of Wanzhou district in 2000 and 2007.Quantitative statistic data and phasor diagram were worked out.The dynamic characteristics of LUCC(Land Use/Cover Change) were analyzed through a model which includes four exponents,namely single dynamic index,exploitation degree,consumption degree,and comprehensive dynamic index.It was found that garden plot accounted for the largest proportion of the whole land cover,up to 39.52%.In general,land cover didn’ t change much,while each single dynamic index was different,with construction land grew remarkably and forest land and farmland decreased.It’s suggested that measures must be taken to protect forest land and farmland,and the management of urban construction land must be strengthened.This research provides basis for the decision making for reasonable land use.