Abstract:

In order to get the changes and the causes of main natural wetland in Hebei Province from 2000 to 2010, the image of China environment satellite in 2010, the TM image of 2000 and 2005 were used to analyze and research the changes which based on the technology of ERDAS and ArcGIS. The author also analyzed the data of dynamic degree to find the changes and the influencing factors for the dynamic variation of main natural wetland in Hebei Province. The study results showed that the area of natural wetland in Hebei Province were reduced seriously, and construct natural wetland reserves were the effective method to protect natural wetland, the reason which natural wetland generally reduced was the interference from human factors.