Aerial biomass and NDVI in a cerrado-caatinga ecotonal zone at Flona Palmares, Altos, Piaui, Brazil
DOI:
https://doi.org/10.6008/CBPC2179-6858.2020.005.0042Keywords:
Caatinga biome, Conservation unit, Nutriente cyclingAbstract
Biomass estimation is a way of assessing the amount of biological material in a forest in terms of its energy conversion and nutrient cycling, as well as studies on plant biomass and the nutritional composition of plants can compose an important database for the development of conservation programs. Therefore, the study aimed to quantify the biomass of aerial vegetation and analyze its relationship with the NDVI (Normalized Difference Vegetation Index) of the Palmares National Forest, Altos, Piauí. The study was carried out in a sustainable use conservation unit, the Palmares National Forest is located in the Rural Zone of the municipality of Altos - PI, having as its limit the capital Teresina . In this research, only individuals who were within the 20m x 20m plots, collected in 09 plots, totaling an area of 168 ha, were considered. In this stratum, all individuals with a circumference at breast height (CAP) equal to or greater than 15 cm were included. With the NDVI it was possible to have a visualization of the Flona vegetation, and thus make a comparison with the biomass results, which were consistent with the NDVI image. The total biomass in live and dead trees in Flona de Palmares was estimated at 313,050 Mg / ha, in the dry period of 2019.
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