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应用航片调查水土流失现状,节省时间、资金和劳力,而且资料准确可靠,能满足治理规划的需要,适宜以县、地区为单位进行普查工作,更适宜以小流域为单元进行治理规划工作上的应用。 肇庆地区在1983年下半年至1984年上半年,全区10个县先后应用了1980年1月拍摄的1/35000黑白航空象片进行普查水土流失现状。在开展工作之前,先在德庆县举办全区12人为期一个月的工作学习班,
The application of aerial survey of soil and water loss status, save time, capital and labor, and the data is accurate and reliable, can meet the needs of governance planning, suitable for counties, regions as a unit of census, more suitable for small watershed as a unit for management planning Applications. Zhaoqing area In the second half of 1983 to the first half of 1984, 10 counties in the district applied the 1/35000 black and white aerial photographs taken in January 1980 to conduct a survey of soil and water loss. Before carrying out the work, we hold 12-month-long one-month work-study classes in Deqing County,