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林业资源管理 ›› 2015, Vol. 0 ›› Issue (3): 59-64.doi: 10.13466/j.cnki.lyzygl.2015.03.013

• 科学研究 • 上一篇    下一篇

基于NDMVI的大青山自然保护区植被覆盖度坡向分异研究

金行1,2, 沈渭寿2, 闫业超1, 李海东2, 林乃峰2, 陈斌1,2   

  1. 1.南京信息工程大学 地理与遥感学院,南京 210044;
    2.环境保护部南京环境科学研究所,南京 210042
  • 出版日期:2015-06-28 发布日期:2020-12-01
  • 通讯作者: 沈渭寿(1958-),男,甘肃景泰人,研究员,博导,主要从事生态环境保护理论与技术的研究。Email:shenweishou@163.com
  • 作者简介:金行(1991-),男,江苏镇江人,在读硕士,主要从事RS,GIS及其生态学应用方面的研究。Email:zjdtgz@163.com

Study on Slope-direction of Vegetation Coverage of Daqing Mount Nature Reserve Based on NDMVI

JIN Hang1, 2, SHEN Weishou2, YAN Yechao1, LI Haidong2, LIN Naifeng2, CHEN Bin1, 2   

  1. 1.School of Geography and Remote Sensing,Nanjing University of Information Science and Technology,Nanjing 210044,China;
    2.Nanjing Institute of Environmental Science,Ministry of Environmental Protection,Nanjing 210042,China
  • Online:2015-06-28 Published:2020-12-01

摘要: 运用RS与GIS技术,以Landsat TM影像为数据源,基于归一化差值山地植被指数(NDMVI)定量分析了大青山自然保护区植被覆盖度随坡向的分异规律。结果表明保护区的植被覆盖度总体上随坡向呈现明显的分异;大青山保护区植被覆盖度的坡向分异随海拔的升高而越明显。垂直分异规律在不同的坡向上不相同北坡和西北坡在海拔1 400m以上植被覆盖度变化随高度增加而越不明显,1 400m以下则随高度增加而越明显;其它坡向,在1 600~2 000m的海拔高度上,植被覆盖度差异相对更高和更低海拔上的植被覆盖度差异较小;所有坡向在1 200~1 600m的海拔上植被覆盖度差异很小。

关键词: 坡向分异, 植被覆盖度, 大青山

Abstract: This paper analyses the slope-direction of vegetation coverage of Daqing Mount Natural Reserve based on normalized difference mountain vegetation index (NDMVI)by using RS and GIS with the Landsat TM image data.The results show that(1)Obvious differences of coverage on different slope aspects exist in Daqing Mount Natural Reserve;(2)The slope-direction differentiation of vegetation coverage in Daqing Mount Natural Reserve becomes more obvious with increasing altitude and vertical distributions on different slope aspects are not same;(3)On north and northwest slope,the change of vegetation coverage become unapparent over the altitude of 1400m,while it become more apparent below the altitude of 1400m;(4)On the other slopes,the change of vegetation coverage on the altitude of 1600m to 2000m is smaller than it on higher and lower altitude;(5)On all slopes,the difference of vegetation coverage on the altitude of 1200m to 1600m are not very noticeable.

Key words: slope-direction, vegetation coverage, Daqing Mount

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