地块比例估算法快速调查主要粮食作物种植情况可行性研究

Feasibility Study on Plot Proportion Estimation Method to Quickly Investigate Major Food Crop Planting

通过粮食作物种植典型性、交通便利性、农作物长势等情况综合选取兴仁市某村作为快速调查粮食作物种植情况试验区,采用低空航空摄影测量方法、基于解译样本的卫星影像自动分类方式、地块比例估算3种方法调查主要粮食作物种植情况,根据试验结果从调查面积、时间、精度、信息化等方面对比3种方法成果的优缺点。验证采用比例估算方法快速调查主要粮食作物种植情况的可行性和影响调查精度的相关影响因素。

Based on the typicality of food crop planting,transportation convenience,crop growth and other conditions,a village in Xingren City is selected as the experimental area for rapid investigation of food crop planting,and the planting of main grain crops is investigated by using three methods:low-altitude aerial photogrammetry,automatic classification of satellite images based on interpretation samples,and plot proportion estimation.The advantages and disadvantages of these three methods are compared from the aspects of survey area,time,accuracy and informatization according to the experimental results.The feasibility of using the proportion estimation method to quickly investigate the planting of major food crops and the relevant imaging factors affecting the accuracy of the survey are verified.