| 基于GIS的退耕还林工程区林地动态变化遥感监测研究 |
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| 引用本文： | 杨朝俊,胡庭兴,刘波,赖家明.基于GIS的退耕还林工程区林地动态变化遥感监测研究[J].遥感信息,2006(1):38-40. |
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| 作者姓名： | 杨朝俊 胡庭兴 刘波 赖家明 |
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| 作者单位： | 1. 四川农业大学林学园艺学院,四川,雅安,625014
2. 四川省森林资源监测中心,四川,成都,610081 |
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| 基金项目： | 科技部“十五”重大科技攻关项目“四川盆周低山丘陵区水土流失综合治理技术与示范”(编号:2001BA606A-06),四川省重点学科建设项目(2003-2006)资助 |
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| 摘 要： | 以天全河流域中、下游为研究区域,应用分类后检测的方法,利用1997年和2003年的SPOT与TM融合遥感影像,采用监督分类和专家分类相结合的方法获得土地利用分类结果,对结果进行叠加分析,提取变化信息。研究表明:1997~2003年研究区域土地利用结构发生明显变化,耕地大量减少,林地增多量大;土地利用变化动态度大,耕地动态度为-5.1%,林地动态度为0.9%,建筑地动态度最高;研究区域退耕还林地的来源主要是耕地,来源合理。
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| 关 键 词： | 遥感 GIS 退耕还林 动态监测 土地利用 |
| 文章编号： | 1000-3177(2006)83-0038-03 |
| 收稿时间： | 2005-07-22 |
| 修稿时间： | 2005-08-03 |
A Study on Monitoring Dynamic Change of Forest Land by Remote Sensing and GIS in the Region of Returning Cultivated Land to Forest |
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| YANG Chao-jun,HU Ting-xing,LIU Bo,LAI Jia-ming.A Study on Monitoring Dynamic Change of Forest Land by Remote Sensing and GIS in the Region of Returning Cultivated Land to Forest[J].Remote Sensing Information,2006(1):38-40. |
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| Authors: | YANG Chao-jun HU Ting-xing LIU Bo LAI Jia-ming |
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| Abstract: | The information of Tianquan county in Sichuan Province from TM(2003) and SPOT(1997) were used in this research.The land use classification was obtained with the supervised and expert classification.The change area of studied region was obtained by overlaying the resultant classification of two periods.The results indicate,that the structure of land use in studied region changes evidently from 1997 to 2003.Cultivated land area decreases greatly,and woodland and construction land increased greatly.The change rate of land use is very high from 1997 to 2003.The change rate of cultivated land is very high,which is-5.4%,and the change rate of woodland is 0.9%,and the change rate of residential land is the highest.Most of new forest land is from cultivated land,which is reasonable. |
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| Keywords: | remote sensing GIS returning cultivated land to forest land use monitoring dynamic |
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