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在GIS技术支持下 ,应用土地资源评价的原理和方法 ,采用指数和法对广东省斗门县土地资源进行评价 ,划分为 5个不同的质量等级 ,统计其面积并绘制土地资源评价图 ,对不同级别的土地资源进行分析 结果表明 :采用指数和法划分出斗门县耕地资源 (包括Ⅰ、Ⅱ等地 )共 41418 73hm2 ,约占全县土地总面积 6 2 % 其中 ,Ⅰ等地主要是质量中上的水稻土和菜地 ,约占耕地总面积的 73% ;Ⅱ等地主要是中低产田 ,其数量约占全县耕地 2 7% 斗门县非耕地资源所占比重较大 ,约为土地总面积的 38%
With the support of GIS technology, applying the principles and methods of land resource assessment, the land resources of Doumen County in Guangdong Province were evaluated by index and method, divided into five different quality levels, the area of which was calculated and the land resources evaluation map was drawn. Level land resources analysis results show that: using index and law divided Doumen County cultivated land resources (including Ⅰ, Ⅱ and other places) a total of 4141873hm2, accounting for 622% of the total land area of the county where, Ⅰ and other places are mainly in the quality On the paddy soil and vegetable fields, accounting for about 73% of the total area of cultivated land; Ⅱ and other places is mainly low-yielding fields, the number of about 27% of the county arable land Doumen non-cultivated land resources share is larger, about the land 38% of the total area