基于发展压力状态的土地利用动态遥感监测区域划分方法——以天津市津南区为例

摘要

In order to conduct land use dynamic remote sensing monitoring with clearer aim,this paper proposes appropriate monitoring ideas and methods.With Jinnan district as the study area and on the basis of establishing the development pressure evaluation index system,the authors selected the appropriate quantitative indicators and used the multi-factor evaluation method to evaluate development pressure grade of each unit in the study area and zone the area.The zoning results show that the key monitoring area of land use remote sensing dynamic monitoring in Jinnan district is 11 650.5 hectares,and the general monitoring area is 9 011.7 hectares,respectively accounting for 56.4％ and 43.6％ of the total area of the evaluation unit.In combination with the land-use characteristics of each zone,the selection of different remote sensing monitoring ideas and methods according to the local conditions is of great significance for efficient promotion of land use dynamic monitoring by remote sensing technology.%为了更加有针对性地进行土地利用动态遥感监测工作,提出了基于发展压力状态的监测思路和方法.以天津市津南区为例,在构建发展压力状态评价指标体系的基础上,选取相应的定量指标,利用多因素综合评价方法评价研究区各单元发展压力等级,并进行区域划分.区域划分结果为:津南区土地利用动态遥感重点监测区面积为11 650.5 hm2,一般监测区面积为9 011.7 hm2,分别占评价单元总面积的56.4％和43.6％;结合各分区的土地利用特点,因地制宜地选择不同的监测思路和方法,对促进土地利用动态遥感监测工作的高效开展具有重要意义.