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一、遥感监测土资源动态变化是信息时代实现农业现代化的战略性任务在当今的信息社会,土资源的数量、质量及利用状况是一国的重要国情信息。随着人口增长和工业化进展,对农林畜产品的需求量不断提高,工矿业基地和交通、生活用地也不断增加,从而要求及时掌握土资源动态变化的信息,为进一步合理利用与科学管理土资源提供可靠依据,这已成为当前全球性的紧迫问题。我国人多地少,宜农荒地设备资源有限,加之农业政策长期受左倾路线干扰,许多地方生态平衡遭受破坏,部份地区土壤退化现象严重,
I. MONITORING THE DYNAMIC CHANGE OF SOIL RESOURCES IS THE STRATEGIC TASK FOR MODERNIZATION OF AGRICULTURE IN THE INFORMATION AGE In today’s information society, the quantity, quality and utilization of land resources are important national conditions for a country. With the population growth and industrialization progress, the demand for agriculture, forestry and livestock products continues to increase, and industrial and mining bases and traffic and living land are also constantly increasing, thus requiring timely information on the dynamic changes of soil resources. In order to further rationally utilize and scientifically manage soil resources Providing a sound basis has become an urgent global issue. In our country, there are few people, limited resources for agricultural wasteland and long-term disturbance of agricultural policies by left-leaning routes. The ecological balance in many places is damaged. In some areas, soil degradation is serious,