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气象:2007,33(11):76-81
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EOS/MODIS数据在广西甘蔗种植信息提取及面积估算的应用
(1.广西师范学院资环学院,南宁 530001;2.广西区气象减灾研究所;3.中山大学地理科学与规划学院)
Study on the Extraction of Sugar cane Planting Areas from EOS/MODIS Data
(1.Guangxi Normal University, Nanning 530021;2. Guangxi Institute of Meteorology;3.Sun Yatsen University;4.Guangxi Institute of Meteorology)
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投稿时间:2006-12-26    修订日期:2007-09-10
中文摘要: 通过计算广西区域多时相MODIS NDVI值,结合GPS选定甘蔗样本训练区多时相NDVI值变化曲 线,以及甘蔗生长周期长达8个月至1年以上,蔗糖生产期间甘蔗面积逐渐递减的特性,采用 最大似然法提取非样本训练区甘蔗种植信息,最终实现广西区域的甘蔗种植空间分布遥感信 息的提取。经对遥感影像图甘蔗连片种植区域、零散点种植区与GPS实地定位调查比较,结 果表明广西区域甘蔗种植信息遥感监测与实况相符。在此基础上,对广西区域甘蔗种植面积 估算面积进行初步统计,精度达到90%以上。
中文关键词: MODIS  甘蔗种植  信息提取  面积统计
Abstract:An automatic approach was presented to extract the sugar cane planting area for the mixed vegetation and hilly region in Guangxi province by using the moderate spatial and high temporal resolution MODIS data. The samples of a tra ining region were selected by GPS and the temporal variation curve of NDVI was w orked out. The maximum likelihood method was used to extract the information of sugar cane planting area and its spatial distribution through calculating the multiple phase MODIS NDVI. The comparison of results from remote sensing image s with the investigations by GPS shows that the sugar cane planting area can be e xtracted from MODIS data, and the accuracy is more than 90%.
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基金项目:国家863计划(2001AA115360)、中国气象局新技术推广项目(CMATG2 006M42)和广西资源与环境信息系统重点学科项目资助
引用文本:
谭宗琨,吴良林,丁美花,杨鑫,欧钊荣,何燕,匡昭敏,2007.EOS/MODIS数据在广西甘蔗种植信息提取及面积估算的应用[J].气象,33(11):76-81.
Tan Zongkun,Wu Lianglin,Ding Meihua,Yang Xing,Ou Zhaorong,He Yan,Kuang Zhaomin,2007.Study on the Extraction of Sugar cane Planting Areas from EOS/MODIS Data[J].Meteor Mon,33(11):76-81.