利用像素间相关指数评估植物覆盖和量化的方法

Q3 Social Sciences

Journal of Urban and Environmental Engineering Pub Date : 2018-12-31 DOI:10.4090/juee.2018.v12n2.245256

José Carlos de Souza, E. D. Lopes, Jocy Ana Paixão de Sousa, A. C. G. Martins, R. W. Lourenço

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引用次数: 1

摘要

本研究通过使用基于像素对像素组合的相关矩阵对植物覆盖进行时空分析的方法，得出了归一化差异植被指数（NDVI）、土壤调整植被指数（SAVI）和归一化差异水分指数（NDWI）的结果。这项研究是利用2015年1月和8月的陆地卫星8号图像进行的。使用ArcGis和Matlab构建相关矩阵进行图像处理，以评估巴西植被中各指标的变化。结果表明，三项指标从丰水期到枯水期均呈下降趋势。气候条件影响植被的活力和含水量。像素间相关法适用于研究植被变化，量化植被的增加、减少或维持。

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METHOD FOR EVALUATING PLANT COVER AND QUANTIFICATION USING PIXEL TO PIXEL CORRELATION INDICES

This study brings results on Normalized Difference Vegetation Index (NDVI), the Adjusted Vegetation Index of Soil (SAVI) and the Index of Water by Normalized Difference (NDWI) through a method that uses correlation matrices built on a pixel to pixel combination for spatial and temporal analysis of plant cover. The study was developed by using Landsat 8 images from January and August, 2015. Image processing was performed with ArcGis and Matlab building correlation matrices to evaluate variations of each index in Brazilian vegetation. Results showed decreasing values of the three indices from wet to dry period. Climatic conditions influenced on the vigor and moisture content of vegetation. The pixel to pixel correlation method is appropriated to study vegetation changes and quantify increase, decrease or maintenance of vegetation.

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来源期刊

Journal of Urban and Environmental Engineering Social Sciences-Urban Studies

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Journal of Urban and Environmental Engineering (JUEE) provides a forum for original papers and for the exchange of information and views on significant developments in urban and environmental engineering worldwide. The scope of the journal includes: (a) Water Resources and Waste Management [...] (b) Constructions and Environment[...] (c) Urban Design[...] (d) Transportation Engineering[...] The Editors welcome original papers, scientific notes and discussions, in English, in those and related topics. All papers submitted to the Journal are peer reviewed by an international panel of Associate Editors and other experts. Authors are encouraged to suggest potential referees with their submission. Authors will have to confirm that the work, or any part of it, has not been published before and is not presently being considered for publication elsewhere.