GIS-Based Fine Spatial Climate Ecological Regionalization of Sweet Orange in Three Gorges Reservoir Area

摘要

According to different ecological conditions of various of sweet orange and the different of consumption of fresh sweet orange and processing of sweet orange, the article determined the main index of climate and ecological factors, which impact the growth of citrus, based on the major climate resources and meteorological disasters which impact the growth of citrus in Three Gorges reservoir area. This article studied the spatial distribution of the average annual total solar radiation, the average annual temperature and the average annual relative humidity by methods of regression, simulation, interpolation with the help of ARCGIS and 1:250000 DEM (Districts and counties with 1:50000). In the above, the article made the fine spatial climate ecological division of sweet orange in Three Gorges reservoir area. And some development strategies of sweet orange are made according to the division.