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为了查清土壤侵蚀状况,有效地开展水土保持工作,赤峰市水利水产局接受内蒙古水利局下达的任务,编制了《赤峰市土壤侵蚀现状图》。现结合实际工作,简介于下: 一、收集资料收集工作区内1:50万Mss影象图、地形图、地质图、土壤图、植被图和不同比例的地形图等。二、室内分析预判,选择工作底片根据收集到的卫星象片,结合常规资料进行时象分析、影象特征分析和资料综合分析。尔后选择最佳时象做为工作底片进行判读。
In order to find out the status of soil erosion and carry out soil and water conservation work effectively, Chifeng Municipal Bureau of Water Resources and Fisheries accepted the tasks assigned by Inner Mongolia Water Resources Bureau and prepared “Current Situation Map of Soil Erosion in Chifeng City”. Now with the actual work, briefly below: First, to collect data collection work area 1,500,000 Mss images, topographic maps, geological maps, soil maps, vegetation maps and topographic maps of different proportions. Second, the indoor analysis of pre-trial, select the work of the film According to the collected satellite images, combined with conventional data for image analysis, image feature analysis and data synthesis. Then choose the best time to do as the work of negative interpretation.