摘要
探究了基于多时相遥感影像在县域尺度上对冬小麦种植面积的监测方法.以河北省廊坊市固安县柳泉镇为研究区域,以冬小麦为目标作物,采用2014年11月份ZY-3(资源三号)和2015年4月份GF-2(高分二号)卫星的遥感影像数据源进行研究.影像经过预处理后,分别计算其归一化植被指数(NDVI),综合分析冬小麦种植面积和其NDVI的相关关系,构建NDVI差值模型来提取冬小麦种植面积,结合ArcGIS软件在影像上随机采样进行验证,最终得到种植空间分布图.采用2015年在柳泉镇实地勘测的冬小麦种植面积数据进行验证,精度可达95.54%.在廊坊市固安县进行区域应用,利用Excel软件进行各乡镇面积统计.结果表明,在县域尺度上采用该方法进行冬小麦面积提取能够达到很高的精度,为科学管理冬小麦的播种面积及制定相关政策提供技术支持.
In order to explore the winter wheat planting area monitoring method based on multi-tempo- ral remote sensing images on county scale, Liuquan town of Gu＇an county, Langfang, Hebei was taken as study area and the winter wheat as target crops. Remote sensing images in ZY-3 satellite in November,2014 and GF-2 satellite in April, 2015 were used. After preprocessing the images, the NDVI was calculated, and correlation of winter wheat planting area and its NDVI images was analyzed. Then the NDVI difference model was built to extract planting area, and the results were verified by random sampling on the image using the ArcGIS software,providing the final planting area image. When verified by the field survey data of winter wheat planting area in Liuquan town in 2015, the accuracy of the extraction method of winter wheat planting area can be 95.54 %. Finally,the method was applied in Gu＇an county of Langfang,and the area of each town was calculated by EXCEL software. The results showed that this extraction method of winter wheat planting area on county scale had high accuracy, providing technical support for scientific management of winter wheat sown area and related policy formulation.
作者
赵建鹏
李国洪
金永涛
李旭青
杨秀峰
赵起超
ZHAO Jianpeng;LI Guohong;JIN Yongtao;LI Xuqing;YANG Xiufeng;ZHAO Qichao(School of Electronic and Control Engineering,North China Institute of Aerospace Engineering,Hebei Langfang 065000,China;Hebei Space Remote Sensing Information Processing and Application of Cooperative Innovation Center,Hebei Langfang 065000,China;Hebei Remote Sensing Information Engineering Research Center,Hebei Langfang 065000,China)
出处
《河北师范大学学报（自然科学版）》
CAS
2018年第6期524-530,共7页
Journal of Hebei Normal University：Natural Science
基金
河北省"三三三人才工程"项目(A2017002046)
河北省青年基金(D2017409021)
高分共性应用技术规范和高分遥感数据云平台处理应用共性关键技术项目(67-Y20A07-9002-16/17)
关键词
冬小麦
遥感
多时相
县域尺度
种植面积
winter wheat
remote sensing
multi-temporal
county scale
planting area
