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土地利用的调查和制图,是实现农业现代化的基础工作之一,其目的在于清查各类用地的分布、数量和质量,揭露当前土地利用存在的问题,为今后合理开发利用土地资源,制定土地利用规划,为进行农业区划提供科学依据。但是,采用一般方法进行土地利用调查和制图,是跟不上时代发展的需要了。由于六十年代发展起来的空间遥感技术,它具有直观、视域广、速度快、连续性好、概略性强、信息量丰富等特点,因此世
Investigation and mapping of land use is one of the basic tasks for realizing agricultural modernization. Its purpose is to check the distribution, quantity and quality of various types of land use, to expose the problems existing in land utilization and to make rational use of land resources for the future and to formulate land utilization Planning, provide a scientific basis for the agricultural zoning. However, using general methods for land use survey and mapping can not keep pace with the needs of the times. Due to the space remote sensing technology developed in the 1960s, it has the characteristics of being intuitive, wide-area of view, fast speed, good continuity, strong summary, rich information and so on