基于序列影像的东台市秋季农作物提取  

Crop Extraction in Autumn in Dongtai City Based on Sequence Images

作　　者：秦慧杰[1,2] 王宗伟 陈成 欧阳晓[1] QIN Hui-jie;WANG Zong-wei;CHEN Cheng(Jiangsu Institute of Surveying and Mapping Engineering,Nanjing,Jiangsu 210013;Key Laboratory of Land Satellite Remote Sensing Application,Ministry of Natural Resources,Nanjing,Jiangsu 210013)

机构地区：[1]江苏省测绘工程院,江苏南京210013 [2]自然资源部国土卫星遥感应用重点实验室,江苏南京210013

出　　处：《安徽农业科学》2021年第15期227-231,共5页Journal of Anhui Agricultural Sciences

基　　金：2020年度江苏省自然资源科技计划项目(2020045);2020年江苏省测绘工程院地理信息科研项目(SCYKY202013);江苏省环保科研课题(2019010);2020年江苏省测绘工程院地理信息科研项目(SCYKY202014)。

摘　　要：随着遥感技术的发展,利用遥感技术提取农作物成为常用的统计农作物面积的方法。基于序列影像提取东台市水稻、玉米和大豆3种秋季农作物并统计面积,为东台市农业结构调整及耕地优化利用提供技术支撑。利用时序影像,结合红边波段、短波红外波段和指数特征,通过实地采样选取阈值,建立决策树提取水稻、玉米和大豆。提取结果显示,东台市水稻、玉米和大豆的种植面积分别为49.21×10^(3)、36.45×10^(3)和7.73×10^(3) hm^(2),通过查阅相关统计数据,计算得出3种农作物的提取精度均达到80%以上,说明利用该水稻、玉米和大豆提取方法可行,提取结果可以作为估算农作物面积的参考。With the development of remote sensing technology,the use of remote sensing technology to extract crops has become a common method of crop area statistics.In this research,three autumn crops of rice,corn and soybean in Dongtai City were extracted based on the sequence image,and the area was counted,which provided technical support for the adjustment of agricultural structure and the optimal use of cultivated land in Dongtai City.By using time series image,we combined with red edge band,short wave infrared band and index characteristics.Through field sampling threshold selection,decision tree was established to extract rice,corn and soybean.The extraction results showed that the planting areas of rice,corn and soybean in Dongtai City were 49.21×10^(3),36.45×10^(3) and 7.73×10^(3) hm^(2),respectively.Through consulting the relevant statistical data,the extraction accuracy of the three crops was more than 80%,which indicated that the method of extracting rice,corn and soybean was feasible,and the extraction results could be used as a reference for estimating the crop area.

关 键 词：特征提取 红边指数 农作物 决策树 

分 类 号：S127[农业科学—农业基础科学]