| 基于RS林地退化监测技术 |
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| 引用本文： | 余坤勇,刘健,许章华,许晶.基于RS林地退化监测技术[J].东北林业大学学报,2010,38(1). |
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| 作者姓名： | 余坤勇 刘健 许章华 许晶 |
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| 作者单位： | 福建农林大学,福州,350002;福建农林大学,福州,350002;福建农林大学,福州,350002;福建农林大学,福州,350002 |
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| 基金项目： | 福建省科技重点攻关项目(2008N003);;“十一五”国家科技支撑计划专题(2006BAD23B05) |
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| 摘 要： | 以永安市、连城县、漳平市为研究区域,选择林地土层厚度、林地土壤侵蚀、林地有机质、全氮、全磷、全钾、森林气候生产力、森林生产力等因子,应用层次分析法,构建林地退化评价指标体系。通过RS技术提取各指标专题信息,生成林地退化图。结果表明,研究区无退化林地面积289 204.20 hm2,轻度退化面积264 772.24hm2,中度退化面积142 851.71 hm2,严重退化面积60 473.69 hm2,剧烈退化面积139.99 hm2,分别占总面积的38.18%、34.96%、18.86%、7.98%、0.02%;3县(市)中永安市林地状况最好,漳平市次之,连城县最弱;研究区林地退化状况总体良好。
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| 关 键 词： | 遥感(RS) 林地退化 监测 层次分析法 |
Monitoring Technology of Forest Land Degradation Based on RS |
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| Yu Kunyong,Liu Jian,Xu Zhanghua,Xu Jing.Monitoring Technology of Forest Land Degradation Based on RS[J].Journal of Northeast Forestry University,2010,38(1). |
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| Authors: | Yu Kunyong Liu Jian Xu Zhanghua Xu Jing |
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| Institution: | College of Forestry;Fujian Agriculture and Forestry University;Fuzhou 350002;P.R.China |
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| Abstract: | An evaluation index system of forest land degradation was constructed using soil thickness,soil erosion,organic matter,total N,total P,total K,climatic productivity,and forest productivity as evaluation factors,with the help of the analytic hierarchy process by taking Yongan,Liancheng and Zhangping as study areas.The thematic information of those factors was extracted and the map of forest land degradation was generated by remote sensing technology.Results showed that non-degraded forest land covered an are... |
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| Keywords: | Remote sensing Forest land degradation Monitoring Analytic hierarchy process |
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