矿区植被叶绿素反演的最佳波段组合探讨

发布时间：2018-10-14 14:13

【摘要】：针对不同于单一植被种类或受单一胁迫影响区域的矿区复垦土地生态环境、植被种类及生长状况的复杂性特征,以及利用传统遥感影像反演其植被叶绿素的精度低、代价高这一问题,探讨了反演矿区植被叶绿素含量的新方法。研究基于WorldView-2影像的多波段组合反演矿区植被叶绿素含量,得到若干个波段组合的空间分布值,并于实地采集数据对各波段组合得到的反演结果进行了相关性验证。结果表明:与矿区实地植被叶绿素含量相关性最强的是由WorldView-2影像的红边波段和近红外1波段组合得到的归一化差异植被指数,其相关性达到0.668,在0.01水平(双侧)上显著相关,可用于复垦地植被叶绿素的反演。该文为新方法新波段在矿区植被叶绿素含量反演方面的应用提供参考依据,对拓展WorldView-2影像的应用范围具有一定的现实意义。
[Abstract]:In view of the complex characteristics of reclaimed land ecological environment, vegetation types and growth conditions in mining areas which are different from single vegetation species or affected by single stress, the precision of retrieving vegetation chlorophyll from traditional remote sensing images is low. A new method for retrieving the chlorophyll content of vegetation in mining area is discussed. Based on WorldView-2 image, the multi-band combination inversion of vegetation chlorophyll content in mining area is studied, and the spatial distribution values of several bands combination are obtained, and the correlation between the inversion results obtained from each band combination is verified by the data collected in the field. The results showed that the normalized difference vegetation index obtained from the combination of red edge band and near infrared band of WorldView-2 image was the most relevant to the chlorophyll content of the field vegetation in the mining area, and the correlation reached 0.668, which was significantly correlated at the level of 0. 01 (on both sides). It can be used to invert the chlorophyll of vegetation in reclaimed land. This paper provides a reference for the application of the new method and new band in the inversion of vegetation chlorophyll content in mining area, and has certain practical significance for expanding the application range of WorldView-2 image.
【作者单位】：中国地质大学(北京)土地科学技术学院;国土资源部土地整治重点实验室;
【基金】：国土资源部公益性行业科研专项经费(201211084-02)
【分类号】：Q948;TP79

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