卧龙湖湿地动态变化及其影响因素分析

卧龙湖湿地是辽宁省最大的内陆湿地，也是沈阳市第一个省级自然保护区。本文借助遥感与地理信息系统等技术，利用多个时期不同平台的卫星影像数据，结合实地调查，建立解译标志。然后，运用AreGIS8．3进行矢量化和空间数据分析。此外，还分析了卧龙湖地区的气象资料，以及近年来的人类干扰活动。研究表明：从1993年～2004年，卧龙湖地区的湿地面积逐渐萎缩，最后完全干涸。年降水量与湿地面积之间存在一定的同步关系，年降水量减少是卧龙湖湿地萎缩的一个重要原因。不合理的人为开发活动和农业生产方式进一步促使了卧龙湖湿地快速消亡。

Analysis of Dynamic Tendency of the Wet Land Around WoLong Lake Toward Deterioration and of Contributing Factors

The wetland around the WuLong lake is the largest inland wetland in LiaoNing province as well as the first provincial natural reserve in ShenYang, in this paper based on the remote sensing technology and GIS some interpreting index were set up making use of Landsat imageries and data from field survey, further supported by Ane GISS.3 the spatial analysis of vectorization was made as well as a study on the influence of mans activities on wetland eco-system was conducted supported by meteorological data over the several years, the results shows that the area of WuLong lake wetland had been shrinking gradually from 1993 to 2004, and dried up in the end. There is an obvious synchronous relationship between precipitation and the area of the wetland, annual decreasing precipitation is an important causation of shringkage of wetland area, on the other hand the illegitimate exploitation and immoderate agriculture production had been accelerated the die oat of WuLong lake wetland.