Research and analysis on the surface area change of Hongjiannao based on the remote sensing image

The Hongjiannao is very important for the ecological environment and the climatic environment nearby. The surface area of the Hongjiannao is decreasing quickly in the last decade. We extract the surface areas of the Hongjiannao in different periods of the past decade from the remote sensing images. In order to predict variation trend of Hongjiannao´s area, we fit the data with a line use least square technical. Finally, we analyze the reasons that cause the decreasing and show some severe influence to the ecological environment and the climatic environment nearby if the decreasing keep as this condition.