辽河三角洲土地利用变化及其影响

LAND USE CHANGE AND CONSEQUENCES IN THE LIAOHE DELTA

以盘锦市为例 ,以遥感和地理信息系统为主要技术手段 ,结合野外调查 ,对辽河三角洲的土地利用变化进行了分析 ,结果表明 :10年间研究区的土地利用既有类型间的转换 ,又有空间上的变化 ,且呈现一定的规律性 .人为干扰是变化的主导因素 ,而随之产生的生态问题则必须采取有效措施予以控制和补偿 .辽河三角洲是重要的商品粮基地和油田 ,还是许多珍稀鸟类的栖息地 。

Taking Panjin City as a case,we analyse the land use change in the Liaohe Delta between 1988 and 1998 with GIS based on remotely sensed data and field investigation.The result shows that the land use has a great change during the ten years,with human disturbance as the dominant factor.The habitats for many wild birds are seriously affected by this change.Strategies to improve habitat quality and stop the area shrinking must be adopted.This study will contribute to the Coordination between economic development and ecological conservation.