Landscape Pattern Changes under the Impacts of Urbanization in the Yellow River Wetland––king Zhengzhou as an example

Wetland, as the kidney of earth, have an important influence on environment. Recently, the rapid development of Remote Sensing provides an advanced technical platform to the wetland research. This research was under the support of softwares of ERDAS IMAGE, ARCGIS and FRAGSTATS. By interpreting and analyzing two SPOT images in 2002 and 2009, we found the changes of landscape patterns in Yellow River wetland (in the part of Zhengzhou) and the affections of natural and man-made factors had on it. Finally we came to the conclusion that the area of farmland has decreased while the areas of forest and wasteland had increased apparently. This was mainly due to the establishment of nature reserve .The areas of Yellow River and ponds had decreased for the lack of water from upstream. The growing number of people leads to the increase of area of villages. The increase of mean fractal dimensions shows that urbanization has a bigger influence on Yellow River wetland.