基于遥感的望江县主要农作物种植面积提取研究

Study on Extraction of Planting Area of Main Crops in Wangjiang County Based on Remote Sensing

目前,在农作物的识别与提取工作中,遥感技术得到了广泛的运用。该研究结合安徽省望江县主要农作物的物候历选取不同时相的陆地卫星影像数据,采用监督分类、决策树分类及变化检测等方法,提取了2017年望江县水稻的种植面积为312.46km^2,油菜的种植面积为277.65km^2。与统计数据对比结果表明:结合农作物的物候数据,采用遥感手段提取主要农作物的种植面积具有一定的可行性和可靠性,可以为该区域粮食生产及其结构调整研究提供基础数据,推动该区域农业的可持续发展。

At present,remote sensing technology has been widely used in the identification and extraction of crops.Based on the phenological data of the main crops in Wangjiang County,Anhui Province,the land satellite image data of different phases were selected.The supervised classification,decision tree classification and change detection were used to extract the rice planting area of Wangjiang County in 2017.The planting area of rice was 312.46km^2 and the planting area of rapeseed was 277.65 km^2.The comparison with statistical data shows that combining the phe⁃nological data of crops,using remote sensing to extract the planting area of main crops has certain reliability,which can provide basic data for grain production and structural adjustment research in the region to promote the sustain⁃able development of agriculture in the region.