摘要
利用不同年代的两期航空遥感信息源,编制两期土壤侵蚀类型现状图,经过叠合比较,建立动态分类系统,勾绘编制动态图,它能够准确、直观、形象地反映出两个年代,特定区域土壤侵蚀类型空间分布的变化规律、趋势和数量特征,为评价土壤侵蚀变化、水土保持规划和综合治理决策提供科学依据。研究结果表明,这种方法合理可行、速度快、精度高。
On the basis of remote sensing information source in two periods of different ages, the present maps of soil erosion types in two periods are compiled and overlapped, then a dynamic classification system was set up, and dynamic maps are drawn. It is direct, accurate and vivid to reflect the variation law, trend, quantity features of the spatial distribution of soil erosion in the particular region in two periods, so they provided a scientific base for evaluating soil erosion variation, pragraming and making a strategic decision of soil and water conservation. The results show this method is reasonable and feasible, has high speed and precision.
出处
《水土保持学报》
CSCD
北大核心
1993年第3期80-86,共7页
Journal of Soil and Water Conservation
关键词
土壤侵蚀
类型
航空遥感
制图
type of soil erosion aero-remote sensing dynamic mapping