RELATIONSHIP BETWEEN BIOMASS OF NATIVE GRASSLANDS AND REMOTE SENSING DATA

Authors

  • Carline Biasoli Trentin
  • Aline Biasoli Trentin
  • Dejanira Luderitz Saldanha

DOI:

https://doi.org/10.22409/GEOgraphia2019.v21i45.a14187

Keywords:

Spectral response, MODIS sensor, Pampa Biome

Abstract

Variations of spectral response are directly related to the amount of aboveground biomass vegetation (stored) in addition to other pigments. We estimate the aboveground biomass vegetation through a relationship between aboveground biomass vegetation in grassland native collected in the field and remote sensing data in the hot and cold seasons of the period from 2012 to 2014. To estimate the biomass of grassland native air from spectral data, the data were related to amount of instant air field collected biomass during the period 2012 to 2014 versus the spectral response of vegetation data (measured by MODIS sensor). From the development of a temporal profile of data and a scatter plot between aboveground biomass values and spectral data, conducted analyses of correlation and linear regression analysis, noting the relationship between these two sets of data. In this way, it was observed a relationship between aboveground biomass and the indices EVI and NDVI and NIR spectral band, with highest values in summer and lower in winter. The correlation coefficient was significant for the bands of blue, red, NIR, EVI and NDVI. In this way, the resulting model demonstrated the applicability of MODIS images for the estimation of aboveground biomass of grassland vegetation.

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Published

2019-06-07

How to Cite

TRENTIN, C. B.; TRENTIN, A. B.; SALDANHA, D. L. RELATIONSHIP BETWEEN BIOMASS OF NATIVE GRASSLANDS AND REMOTE SENSING DATA. GEOgraphia, v. 21, n. 45, p. 98 - 106, 7 Jun. 2019.