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| 面向对象的长江源区当曲流域高寒湿地信息提取(英文) | |
| 引用本文： | 张继平,张镱锂,刘林山,丁明军,张学儒.面向对象的长江源区当曲流域高寒湿地信息提取(英文)[J].资源与生态学报（英文版）,2011,2(2):186-192. |
| 作者姓名： | 张继平 张镱锂 刘林山 丁明军 张学儒 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京100101;中国科学院研究生院,北京100049; 2. 中国科学院地理科学与资源研究所,北京100101; 3. 中国科学院地理科学与资源研究所,北京100101;江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,江西南昌330022 |
| 基金项目： | funded by National Natural Science Foundation of China (Grant No.40901057); National Basic Research Program of China (Grant No.2010CB951704) |
| 摘 要： | 长江南源当曲流域是我国高寒沼泽湿地的集中分布地区之一,是青藏高原腹地重要的水源涵养地。对该地区湿地资源及分布的正确把握直接关系到当地牧民的生产生活及下游地区的经济社会发展。由于湿地光谱特征复杂,易于其他地类混淆,传统的遥感信息提取方法很难保证湿地信息提取的精度。本文运用面向对象的图像信息自动分类方法,对当曲流域内的湿地信息进行提取。在对各类型湿地的光谱特征、纹理特征及空间特征进行分析的基础上,充分结合DEM及其衍生数据(坡度、坡向), 归一化植被指数 (NDVI), 归一化水体指数 (NDWI) 及缨帽变换(Kauth-Thomas transformation)得到的湿度图层等参数,设置各参数阈值,建立各湿地类型的信息提取知识规则,并结合野外实地调查对信息提取精度进行验证。经检验,湿地信息提取的总体精度达到89.00%。 |
| 关 键 词： | 高寒湿地 遥感 面向对象图像分类 当曲流域 |
Identifying Alpine Wetlands in the Damqu River Basin in the Source Area of the Yangtze River Using Object-based Classification Method |
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| ZHANGJiping,ZHANGYili,LIULinshan,DINGMingjun,ZHANGXueru.Identifying Alpine Wetlands in the Damqu River Basin in the Source Area of the Yangtze River Using Object-based Classification Method[J].Journal of Resources and Ecology,2011,2(2):186-192. | |
| Authors: | ZHANGJiping ZHANGYili LIULinshan DINGMingjun ZHANGXueru |
| Institution: | ZHANG Jiping 1,2,ZHANG Yili1*,LIU Linshan1,DING Mingjun1,3 and ZHANG Xueru1,2 1 Institute of Geographic Science and Natural Resources Research,CAS,Beijing 100101,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100039,3 Key Lab of Poyang Lake and Watershed Research,Ministry of Education(Jiangxi Normal University),Nanchang 330022 |
| Abstract: | Alpine wetlands are very sensitive to global change,have great impacts on the hydrological condition of rivers,and are closely related to peoples' living in lower reaches.It is essential to monitor alpine wetland changes to appropriately manage and protect wetland resources;however,it is quite difficult to accurately extract such information from remote sensing images due to spectral confusion and arduous field verification.In this study,we identified different wetland types in the Damqu River Basin located... |
| Keywords: | alpine wetland remote sensing object-based classification Damqu River Basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |