| Autor: |
Oliveira KN; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Miguel EP; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Martins MS; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Rezende AV; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Dos Santos JA; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Nappo ME; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil., Matricardi EAT; Department of Forest Engineering, Federal University of Brasília (UnB), Brasilia 70297-400, DF, Brazil. |
| Jazyk: |
angličtina |
| Zdroj: |
Plants (Basel, Switzerland) [Plants (Basel)] 2024 Oct 09; Vol. 13 (19). Date of Electronic Publication: 2024 Oct 09. |
| DOI: |
10.3390/plants13192826 |
| Abstrakt: |
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 2 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=0.000085D2.122270H0.666217, and biomass was estimated using the equation AGB=0.0673ρD2H0.976. 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 3 /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 3 /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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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