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内陆水域是淡水鱼类及其它水生生物赖以生存和繁衍的环境基础。要发展我国的淡水渔业,满足人民日益增长的物质需要,既要对鱼类资源保护和增殖,也要大搞淡水养殖。这两者,都离不开对我国内陆水域的深入调查。摸清内陆水域的现状和动态变化规律,除了常规的地面调查外,采用遥感技术具有较好的效果。我国自然环境复杂,不少地区人烟稀少、交通不便,实地调查会遇到许多困难。大范围的水域动态变化,更不易掌握。有些地方,有些调查项目,非采取遥感手段不能奏效。
Inland waters are the environmental basis for the survival and reproduction of freshwater fish and other aquatic organisms. To develop our country’s freshwater fisheries to meet the people’s growing material needs, we must not only protect and proliferate fish stocks, but also vigorously develop freshwater aquaculture. Both are inseparable from the in-depth investigation of our inland waters. In order to find out the current situation and dynamic changes of inland waters, using remote sensing technology has good effect except for the conventional ground survey. The complicated natural environment in our country has sparsely populated areas and inconvenient transportation in many areas. There are many difficulties encountered in field investigations. A wide range of dynamic changes in the waters, more difficult to grasp. In some places, some surveys do not work without remote sensing.