Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes

We analyze here how much carbon is being accumulated annually by secondary tropical dry forests (TDFs) and how structure, composition, time since abandonment, and climate can influence the dynamics of forest carbon accumulation. The study was carried out in Santa Rosa National Park in Guanacaste pro...

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Main Authors: Sofia Calvo-Rodriguez, G. Arturo Sánchez-Azofeifa, Sandra M. Durán, Mario Marcos Do Espírito-Santo, Yule Roberta Ferreira Nunes
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/12/1/106
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author Sofia Calvo-Rodriguez
G. Arturo Sánchez-Azofeifa
Sandra M. Durán
Mario Marcos Do Espírito-Santo
Yule Roberta Ferreira Nunes
author_facet Sofia Calvo-Rodriguez
G. Arturo Sánchez-Azofeifa
Sandra M. Durán
Mario Marcos Do Espírito-Santo
Yule Roberta Ferreira Nunes
author_sort Sofia Calvo-Rodriguez
collection DOAJ
description We analyze here how much carbon is being accumulated annually by secondary tropical dry forests (TDFs) and how structure, composition, time since abandonment, and climate can influence the dynamics of forest carbon accumulation. The study was carried out in Santa Rosa National Park in Guanacaste province, Costa Rica and Mata Seca State Park in Minas Gerais, Brazil. Total carbon storage and carbon accumulation were obtained for both sites from the sum of the aboveground carbon and belowground carbon gain plus the annual litterfall. Carbon accumulation of these TDFs varied from 2.6 Mg C ha<sup>−1</sup> y<sup>−1</sup> to 6.3 Mg C ha<sup>−1</sup> y<sup>−1</sup>, depending on the age of the forest stands. Time since abandonment and number of stems per plot were the best predictors for carbon storage, annual carbon gains, and losses. Mortality rates and carbon losses were also associated with seasonal climate variability. We found significant correlations between tree mortality, carbon losses and mean seasonal temperature, mean seasonal precipitation, potential evapotranspiration, and the Oceanic Niño Index. Carbon dynamics in tropical dry forests are driven by time since abandonment and forest structure; however, rising temperature and El Niño Southern Oscillation (ENSO) events can have a significant impact on tree mortality and carbon losses. Depending on their location and land-use history, some dry forests are more impacted by climatic extremes than others, and differences between secondary stages are expected.
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spelling doaj.art-c4887058897f4770ad21d3cfd9da25ba2023-12-03T13:47:37ZengMDPI AGForests1999-49072021-01-0112110610.3390/f12010106Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change ExtremesSofia Calvo-Rodriguez0G. Arturo Sánchez-Azofeifa1Sandra M. Durán2Mario Marcos Do Espírito-Santo3Yule Roberta Ferreira Nunes4Earth and Atmospheric Sciences Department, University of Alberta, Edmonton, AB T6G 2E3, CanadaEarth and Atmospheric Sciences Department, University of Alberta, Edmonton, AB T6G 2E3, CanadaEarth and Atmospheric Sciences Department, University of Alberta, Edmonton, AB T6G 2E3, CanadaDepartment of General Biology, Center for Biological and Health Sciences, State University of Montes Claros, CP 126, Montes Claros CEP 39401-089, Minas Gerais, BrazilDepartment of General Biology, Center for Biological and Health Sciences, State University of Montes Claros, CP 126, Montes Claros CEP 39401-089, Minas Gerais, BrazilWe analyze here how much carbon is being accumulated annually by secondary tropical dry forests (TDFs) and how structure, composition, time since abandonment, and climate can influence the dynamics of forest carbon accumulation. The study was carried out in Santa Rosa National Park in Guanacaste province, Costa Rica and Mata Seca State Park in Minas Gerais, Brazil. Total carbon storage and carbon accumulation were obtained for both sites from the sum of the aboveground carbon and belowground carbon gain plus the annual litterfall. Carbon accumulation of these TDFs varied from 2.6 Mg C ha<sup>−1</sup> y<sup>−1</sup> to 6.3 Mg C ha<sup>−1</sup> y<sup>−1</sup>, depending on the age of the forest stands. Time since abandonment and number of stems per plot were the best predictors for carbon storage, annual carbon gains, and losses. Mortality rates and carbon losses were also associated with seasonal climate variability. We found significant correlations between tree mortality, carbon losses and mean seasonal temperature, mean seasonal precipitation, potential evapotranspiration, and the Oceanic Niño Index. Carbon dynamics in tropical dry forests are driven by time since abandonment and forest structure; however, rising temperature and El Niño Southern Oscillation (ENSO) events can have a significant impact on tree mortality and carbon losses. Depending on their location and land-use history, some dry forests are more impacted by climatic extremes than others, and differences between secondary stages are expected.https://www.mdpi.com/1999-4907/12/1/106tree mortalitybiomasscarbon sequestrationtropical dry forestsuccessional stagesENSO
spellingShingle Sofia Calvo-Rodriguez
G. Arturo Sánchez-Azofeifa
Sandra M. Durán
Mario Marcos Do Espírito-Santo
Yule Roberta Ferreira Nunes
Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
Forests
tree mortality
biomass
carbon sequestration
tropical dry forest
successional stages
ENSO
title Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
title_full Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
title_fullStr Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
title_full_unstemmed Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
title_short Dynamics of Carbon Accumulation in Tropical Dry Forests under Climate Change Extremes
title_sort dynamics of carbon accumulation in tropical dry forests under climate change extremes
topic tree mortality
biomass
carbon sequestration
tropical dry forest
successional stages
ENSO
url https://www.mdpi.com/1999-4907/12/1/106
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