为提高红树林面积量算的准确性和效率,对当前红树林面积量算主要采取的手持GPS仪绕测法、卫星遥感监测、无人机遥感监测等方法进行梳理总结,分析各种方法在红树林面积量算应用中的优缺点及其适用场合,提出采用无人机搭载数码相机拍摄设有控制点的被测区域,再应用近景摄影量算理论计算小区域红树林面积的方法。
In order to improve the accuracy and efficiency of Mangrove forest area,the paper introduces area measurement methods including hand-GPS measurement,satellite remote sensing,unmanned aerial vehicle remote sensing and other methods,and also analyzes and compares the advantages and disadvantage of those calculating methods. Therefore,an area measurement method for micro-region Mangrove forest has been proposed by using UAV equipped with a digital camera which provided with a control point of the test area,and then combined with the close shot photogram metry to theoretically calculate small area of mangrove area.