基于遥感技术的丘陵地带耕地撂荒监测方法研究  

Research on Monitoring Method of Cultivated Land Abandonment in Hilly Area Based on Remote Sensing Technology

作　　者：李海娟 LI Haijuan(Shenzhen Aihua Survey Engineering Co.,Ltd.,Shenzhen 518111,Guangdong,China)

机构地区：[1]深圳市爱华勘测工程有限公司,广东深圳518111

出　　处：《工程技术研究》2024年第23期226-228,共3页Engineering and Technological Research

摘　　要：文章结合具体案例,利用遥感技术对南部某丘陵地带的耕地撂荒情况进行监测,通过对高分辨率遥感影像进行辐射校正、几何校正及图像配准,采用监督分类、无监督分类和专家知识决策树分类方法识别撂荒地块,并结合地面实地调查,验证解译结果的准确性。结果表明,研究区域内撂荒地面积逐年增加,从2015年的约500 hm2增加至2023年的约800 hm2,年均增长率约为6%;地面验证结果显示,遥感解译的撂荒地块情况与实际情况基本一致,验证准确率达到90%,表明在大面积区域的撂荒监测中应用遥感技术具有较高的准确性和可靠性。Combined with specific cases,this paper uses remote sensing technology to monitor the abandonment of cultivated land in a hilly area in the south of China.Through radiometric correction,geometric correction and image registration of high-resolution remote sensing images,supervised classification,unsupervised classification and expert knowledge decision tree classification are used to identify abandoned land plots.Combined with ground field investigation,the accuracy of interpretation results is verified.The results show that the area of abandoned land in the study area increases year by year,from about 500 hm2 in 2015 to about 800 hm2 in 2023,with an average annual growth rate of about 6%;the results of ground verification show that the situation of abandoned land interpreted by remote sensing is basically consistent with the actual situation,and the accuracy of verification reaches 90%,indicating that the application of remote sensing technology in the monitoring of abandoned land in a large area has high accuracy and reliability.

关 键 词：遥感技术 耕地撂荒 丘陵地带 影像分类 

分 类 号：S127[农业科学—农业基础科学]