扎龙自然保护区湿地格局动态变化研究

Researh on Wetland Pattern Dynamical Changes in Zhalong Nature Reserve

以RS、GIS为技术平台,选用扎龙自然保护区1986 ～2004三期LandsatTM遥感图像为基础数据源.通过对遥感影响判读,将各种景观类型加以分类,并勾绘出轮廓界限,进而得到区域数字化地块,然后运用景观生态学理论和方法,利用fragstats对研究区域景观面积指标、破碎度、分维值等景观指标进行了计算,分析研究区域景观结构、主要景观要素湿地的时空演变、景观组分变化和转移过程,得出区域主要景观要素湿地景观格局动态变化,并定性分析景观动态变化特征和驱动机制,从而确定影响区域内湿地景观格局的变化主要因素,对区域湿地环境的保护和可持续发展有着重要的意义.

In this paper,RS,GIS as a technology platform,the choice of three Zhalong Nature Reserve 1986-2004 based on Landsat TM remote sensing image data source.Impact on interpretation of remote sensing,will be classified a variety of landscape types,and draw the contour line hook,and then digitized by the regional block,and use of landscape ecology theory and methods,the use of fragstats the study area landscape area index,fragmentation,sub-dimension and other landscape metrics were calculated,Analysis of landscape structure,the main landscape elements of the spatial and temporal evolution of wetland landscape changes and the transfer component,the main landscape elements come to the regional wetland landscape pattern of dynamic change,and qualitative analysis of dynamic characteristics of the landscape and drive mechanisms to determine the impact of the region change of wetland landscape pattern factors of the regional wetland conservation and sustainable development are important.