土地利用结构熵变化分析

选取上海市嘉定区1984--2002年的土地利用分类统计数据，应用信息熵概念计算该区域土地利用结构熵．根据熵值变化量对区域土地利用结构变化进行阶段划分，分析该地区的土地利用结构演变规律及变化形成动因．结果表明，嘉定区工业经济快速发展和产业结构的调整是促使土地利用变化的主要推动力量，持续快速的工业化、城市化进程对建设用地的需求会不断加大，土地利用结构将进一步调整，若不实施严格管理、科学规划和合理调控，该地区土地利用结构熵将继续增长．

Analysis of Pattern Change of Entropy Based Land Use

Based on the entropy theory, an indicator described as land use pattern entropy is calculated on the basis of the classified statistical data of land use in Jiading district of Shanghai from 1984 to 2002. An analysis of the rules and driving-forces of land use pattern changes is conducted on the basis of the change of entropy values by dividing them into phases. The results show that the fast development of industrial economy and industrial restructuring in Jiading district are the main driving forces of land use patterns change. In the process of the continuous industrialization and urbanization, land use patterns will be further adjusted with increasing requirement for construction land use. The land use pattern entropy will continue to rise accordingly without strict management, scientific planning and control.