| 基于RS与GIS技术的江苏海岸带湿地分类 |
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| 引用本文： | 朱叶飞,蔡则健.基于RS与GIS技术的江苏海岸带湿地分类[J].地质学刊,2007,31(3):236-241. |
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| 作者姓名： | 朱叶飞 蔡则健 |
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| 作者单位： | 江苏省地质调查研究院 江苏南京210018 |
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| 摘 要： | 通过对江苏海岸带TM影像进行计算机自动分类与人工解译相结合的分类研究,探讨了提高海岸带湿地分类精度与效率的方法与途径。先采用分区分层分类的方法依据海岸线将本研究区分为陆地和海滩两部分。对于陆地部分,对基础分类影像经过非监督分类和光谱聚类处理后,获得分类模板,利用此模板对基础分类影像进行监督分类,对于海滩部分依据平均高潮位线、中潮位线、NDVI对影像进行分层分类,在分类的过程中运用了人机互译判读方法。结果精度评价表明该方法能明显提高海岸带湿地的分类精度。最后,基于VB和MO控件开发了江苏海岸带湿地GIS系统。
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| 关 键 词： | 湿地 分类 海岸带 遥感 GIS Landsat TM/ETM 江苏 |
| 文章编号： | 1003-6474（2007）03-0236-06 |
| 收稿时间： | 2007-02-27 |
| 修稿时间： | 2007年2月27日 |
Wetland classification in Jiangsu coastal zone based on RS and GIS |
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| ZHU Ye-fei,CAI Ze-jian.Wetland classification in Jiangsu coastal zone based on RS and GIS[J].Jiangsu Geology,2007,31(3):236-241. |
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| Authors: | ZHU Ye-fei CAI Ze-jian |
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| Institution: | Geological Survey of Jiangsu Province, Nanjing 210018 ,China |
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| Abstract: | Through a study of Landsat TM images both by computerized automatic classification and manual interpretation,the authors discussed the methods and ways of improving classification accuracy and efficiency of the wetland in coastal zone.First of all,subarea and multilayer method was adopted in accordance with the coastal line to divide the study area into two sections of land and beach.In terms of land section,through unsupervised classification and spectrum cluster treatment,classification template was obtained for the fundamental classification images,and the template was used to conduct the supervised classification for the fundamental classification images.In terms of beach section,layered classification for the images was done according to the interpreted mean high tide line,mean middle tide line and NDVI.Man-machine interactive interpretation is applied during the wetland classification.Accuracy evaluation showed that this method could evidently improve the accuracy of wetland classification in coastal zone.Finally,a wetland information system of Jiangsu coastal zone was developed based on VB and MO control. |
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| Keywords: | Wetland Classification Coastal zone RS GIS Landsat TM/ETM Jiangsu |
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