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Species Substitution and Changes in the Structure, Volume, and Biomass of Forest in a Savanna.

Authors :
Oliveira, Kennedy Nunes
Miguel, Eder Pereira
Martins, Matheus Santos
Rezende, Alba Valéria
dos Santos, Juscelina Arcanjo
Nappo, Mauro Eloi
Matricardi, Eraldo Aparecido Trondoli
Source :
Plants (2223-7747); Oct2024, Vol. 13 Issue 19, p2826, 18p
Publication Year :
2024

Abstract

Research related to Cerradão vegetation focuses more on the floristic-structural aspect, with rare studies on the quantification of volume and biomass stocks, and even fewer investigating the increments of these attributes. Using a systematic sampling method with subdivided strips and 400 m<superscript>2</superscript> plots, the density found was 1135, 1165, and 1229 trees/ha in 2012, 2020, and 2023, respectively, in Lajeado State Park, Tocantins State, Brazil. Volume was estimated using the equation v = 0.000085 D 2.122270 H 0.666217 , and biomass was estimated using the equation A G B = 0.0673 ρ D 2 H 0.976 . Vegetation dynamics were assessed using growth increment, recruitment, mortality, turnover rate, and time. The results indicated that dynamics have increased since the start of monitoring. Typical Cerrado species, in the strict sense, were replaced by those from forest environments. The total production in volume and biomass was 160.91 m<superscript>3</superscript>/ha and 118.10 Mg/ha, respectively, in 2023. The species of Emmotum nitens, Mezilaurus itauba, Ocotea canaliculata, and Sacoglottis guianensis showed the highest increment values in volume and biomass. For the community, the average values were 4.04 m<superscript>3</superscript>/ha/year and 3.54 Mg/ha/year. The community has not yet reached its carrying capacity and stores a significant amount of biomass. This is influenced by the transition of the study area from an exploited environment to a conservation unit (park) and by its location in a transitional area with the Amazon biome. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
22237747
Volume :
13
Issue :
19
Database :
Complementary Index
Journal :
Plants (2223-7747)
Publication Type :
Academic Journal
Accession number :
180273115
Full Text :
https://doi.org/10.3390/plants13192826