Allometric relationships of stand level carbon stocks to basal area, tree height and wood density of nine tree species in Bangladesh

Khan, Md. Nabiul Islam; Islam, Md. Rafikul; Rahman, Atikur; Azad, Md. Salim; Mollick, Abdus Subhan; Kamruzzaman, Md.; Sadath, Md. Nazmus; Feroz, S. M.; Rakkibu, Md. Golam; Knohl, Alexander

doi:10.1016/j.gecco.2020.e01025

Cited by 32 publications

(20 citation statements)

References 44 publications

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“…Thus, since there was less work involved, we recommend using the model with D as the sole variable. In this study, the two models were not significantly different likely because, as in other same-age, single-species stands, H was proportional to D. Our study concurs with previous studies reporting D as the best predictor variable for estimating AGB (Banaticla et al 2007, Chave et al 2014, Khan et al 2020 although D 2 H was the best predictor for AGB of three tree species in central Africa (Ebuy et al 2011). Indeed, the D model has the advantage of needing only D measurements and not H, which is time-consuming and hard to measure accurately especially where tree density is high (Heryati et al 2011).…”

Section: Biomass Estimationsupporting

confidence: 90%

Allometric Models for Estimating Aboveground Biomass and Carbon Stock in Planted Aquilaria Malaccensis Stand

Abd-Majid¹,

Hazandy²,

Nor-Azah³

et al. 2021

JTFS

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Section: Biomass Estimationsupporting

confidence: 90%

Allometric Models for Estimating Aboveground Biomass and Carbon Stock in Planted Aquilaria Malaccensis Stand

Abd-Majid¹,

Hazandy²,

Nor-Azah³

et al. 2021

JTFS

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“…The coordinates of each point of sample collections was recorded by using GPS. Herbs and shrubs were not considered as 98% of total forest biomass consists of tree biomass; they may be ignored in estimation of carbon [25]. Homestead forests are well managed and therefore, are usually free from herbs and lianas.…”

Section: Sample Selection and Woody Vegetation Measurement In Homestementioning

confidence: 99%

“…C stocks were found to vary with land uses, including mangrove and coastal (99 Mg C ha -1 ; [22]), protected contiguous and fragmented (34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53) Mg C ha -1 ; [15]), bamboo (53 Mg C ha -1 ; [23]), hill (103 Mg C ha -1 ; [16]) and homestead (53 Mg C ha -1 ; [17]) forests. These C stocks have been found to be dependent on the stand structure (e.g., tree height, DBH, density, basal area) [24,25] and tree species [26,27], and stands with fast-growing tropical tree species having the highest forest C stocks (201 Mg C ha -1 ; [28]). Tree species diversity may increase above-ground biomass C stocks of tropical forests [29,30] .…”

Section: Introductionmentioning

confidence: 99%

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Baul

Chakraborty

Nandi

et al. 2020

Preprint

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BackgroundThis study aimed to estimate the carbon (C) stocks in homestead forest ecosystems (trees, litterfall, and soil) of Maheshkhali Island in Bangladesh and how tree species diversity and stand structural variation affected these C stocks. We randomly surveyed a total of 239 homestead forests proportionately allocating in hillside (67), beachside (69), and inland (103) in 2019 for measuring woody plants and sampling litterfall and C in soil at 0-30 cm depth. Tree (above- and below-ground) biomass was estimated by using pan-tropical allometric equations, and carbon of litterfall and soil were analyzed in a laboratory. ResultsWe found a total of 52 tree species, of which, 41, 42, and 48 species were in the hillside, beachside, and inland, respectively, corresponding to the individuals of 840, 540, and 1504 sampled. According to the results, species diversity, richness, stand density, basal area (BA), and tree diameter at breast height (DBH) and height were significantly (p ≤ 0.05) greater in the hillside and inland homestead forests, compared to the beachside. Most abundant species, for example, Mangifera indica, Samanea saman, and Artocarpus heterophyllus in the inland and hillside homestead forests stored most C in biomass, compared to the beachside forest. Tree biomass C stocks were 48-67% greater in the inland and hillside than on beachside forests due to significantly (p ≤ 0.05) greater stand density, BA, and DBH. The overall C stock of litterfall was 0.1% of the total biomass carbon. C stock in soil surface was greatest in the hillside homestead forests due to the greatest litterfall. The total soil C stock was also affected by tree species, stand density and species richness, and their interaction with soil properties. Total soil C stocks across the depths were greatest (51 Mg ha-1) in the inland homestead forests, with the greatest stand density and species richness. ConclusionsHomestead forest ecosystems across the area stored total 96 Mg C ha-1, which thus can contribute to climate change mitigation while generating C credit for small-scale homestead forests owners as well as conserving biodiversity in Bangladesh and countries alike.

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“…Carbon stocks were found to vary with land uses, including mangrove and coastal (99 Mg C ha −1 ; [ 22 ]), protected contiguous and fragmented (34–53 Mg C ha −1 ; [ 15 ]), bamboo (53 Mg C ha −1 ; [ 23 ]), hill (103 Mg C ha −1 ; [ 16 ]), and homestead (53 Mg C ha −1 ; [ 17 ]) forests. These carbon stocks have been found to be dependent on the stand structure (e.g., tree height, DBH, density, basal area) [ 24 , 25 ] and tree species [ 26 , 27 ], and stands with fast-growing tropical tree species having the highest forest carbon stocks (201 Mg C ha −1 ; [ 28 ]). Tree species diversity may increase above-ground biomass carbon stocks of tropical forests [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of tree species diversity and stand structure on carbon stocks of homestead forests in Maheshkhali Island, Southern Bangladesh

Baul

Chakraborty

Nandi

et al. 2021

Carbon Balance Manage

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Background The homestead forests of Bangladesh occupy 0.27 million hectares (10% of the total forested area) and have potential to store carbon (C) and conserve biodiversity. Small scale forestry practices, however, are lacking reliable estimation of C stocks and tree species diversity. This may hinder successful implementation of REDD + and similar mechanisms as they concentrate on large-scale forests. This study aimed to estimate the above- and below-ground carbon stocks in homestead forests of Maheshkhali Island in Bangladesh and how tree species diversity and stand structural variation affect these C stocks. We randomly surveyed a total of 239 homestead forests in the hillside, beachside, and inland in 2019. Results Tree biomass C stocks were 48–67% greater in the inland and hillside forests than in the beachside due to significantly greater stand density, basal area, tree diameter. In total we found 52 tree species, but most abundant species in the inland and hillside forests, Mangifera indica, Samanea saman, and Artocarpus heterophyllus stored the most C in tree biomass. Greater tree species richness and diversity index in the inland and hillside forests indicated greater above- and below-ground tree biomass C stocks. An increase in tree species richness and diversity index by one unit was found to increase the tree biomass C stock by 22 and 30 Mg C ha−1, respectively. The total soil C stock was also affected by tree species diversity, stand density, and their interaction with soil properties. Total soil C stocks were greatest (51 Mg ha−1) in the inland forests, having also the greatest stand density and tree species richness. C stock in soil surface was greatest in the hillside forests due to the greatest litterfall, but the average share of litterfall from the total biomass C was only 0.1%. Conclusions Homestead forest ecosystems could store 96 Mg C ha−1 in total, which can contribute to climate change mitigation by generating C credits for small-scale homestead forests owners. Above- and below-ground tree biomass C stocks were found to correlate with tree species diversity, which may also contribute to biodiversity conservation in the REDD + in Bangladesh and countries alike.

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Allometric relationships of stand level carbon stocks to basal area, tree height and wood density of nine tree species in Bangladesh

Cited by 32 publications

References 44 publications

Allometric Models for Estimating Aboveground Biomass and Carbon Stock in Planted Aquilaria Malaccensis Stand

Allometric Models for Estimating Aboveground Biomass and Carbon Stock in Planted Aquilaria Malaccensis Stand

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Effects of tree species diversity and stand structure on carbon stocks of homestead forests in Maheshkhali Island, Southern Bangladesh

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