欢迎访问林草资源研究

林业资源管理 ›› 2008›› Issue (5): 95-100.doi: 10.13466/j.cnki.lyzygl.2008.05.014

• 科学技术 • 上一篇    下一篇

大气校正前后植被指数与森林蓄积量关系研究

郑刚1,2, 彭世揆1, 刘庄2, 刘学3   

  1. 1.南京林业大学森林资源与环境学院,南京 210037;
    2.环境保护部南京环境科学研究所,南京 210042;
    3.南通大学建筑工程学院,江苏 南通 226019
  • 收稿日期:2008-04-02 修回日期:2008-06-11 出版日期:2008-10-28 发布日期:2020-12-08
  • 作者简介:郑刚(1985-),男,江苏灌云人,南京林业大学在读硕士研究生,主要从事GIS、林业遥感和环境方面的研究。Email:mabanphy@163.com
  • 基金资助:
    江苏省太湖水污染治理科技专项项目“太湖流域江苏地区面源污染负荷计算与模拟研究”(BK2007731)

Research on the Correlation between Vegetation Index Before and After the atmosphere Correction and Forest Volume

ZHENG Gang1,2, PENG Shikui1, LIU Zhuang2, LIU Xue3   

  1. 1. College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;
    2. Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection,Nanjing 210042,China;
    3. School of Civil Engineering and Architecture,Nantong University,Nantong 226019,China
  • Received:2008-04-02 Revised:2008-06-11 Online:2008-10-28 Published:2020-12-08

摘要: 利用FLAASH对中山陵风景区的ETM+影像进行大气校正,然后利用ETM+原始DN值、大气表观反射率、地面反射率计算归一化植被指数,并分别建立不同方法计算的归一化植被指数与单位蓄积量的函数关系。研究结果表明,地面反射率计算的归一化植被指数更能反映地面植被覆盖的真实情况,同蓄积量有更强的相关关系。

关键词: NDVI, 大气校正, 蓄积量, 相关关系

Abstract: By applying the FLAASH,ETM+ image of landscape district of Sun Yat-sen mausoleum was corrected for atmospheric effects to generate the apparent reflectance and the surface reflectance products.After applying the DN image,apparent reflectance image and surface reflectance image to calculate the NDVIs,the functional correlations were built between those NDVIs and forest volume with different functions.It was found that NDVI calculated from surface reflectance had the best correlation with forest volume and could truly show vegetation cover of surface.

Key words: NDVI, atmosphere correction, forest volume, correlation

中图分类号: