The influence of environmental factors on species composition and distribution in a community forest in Northern Thailand

Thammanu, Siriluck; Marod, Dokrak; Han, Hee; Bhusal, Narayan; Asanok, Lamthai; Ketdee, Pipat; Gaewsingha, Noppakoon; Lee, Seung–Hyun; Chung, Joo-Sang

doi:10.1007/s11676-020-01239-y

Cited by 49 publications

(31 citation statements)

References 56 publications

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“…In a study conducted in the same area, Thammanu et al (2021) found that distance from communities was negatively related to the composition and distribution of trees in the community forest [ 88 ]. This supports a conclusion that that utilization of forest resources affects tree species.…”

Section: Discussionmentioning

confidence: 99%

Above-ground carbon stock and REDD+ opportunities of community-managed forests in northern Thailand

et al. 2021

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This study aimed to investigate the structure of two deciduous forests and assess their above-ground carbon stock in order to promote community forest management (CFM) for REDD+ opportunities in the Ban Mae Chiang Rai Lum Community Forest in northern Thailand. A systematic sampling method was used to establish twenty-five sample plots of 40 m × 40 m (0.16 ha) each that were used to survey the entire 3,925 ha area of the community forest. Cluster analysis identified two different forest types: dry dipterocarp forest and mixed deciduous forest. It was determined that the above-ground carbon stock did not vary significantly between them. An analysis of carbon sequestration in the community forest indicates that carbon stock increased under CFM from 2007 to 2018 by an estimated 28,928 t C and participation in the carbon market would have yielded approximately US $339,730.43 or US $8.66 /ha/year to the community for that 10-year period. Projections for 2028 reflect that carbon stock will experience continual growth which indicates that maintaining CFM can increase carbon sequestration and reduce CO2 emissions. However, though further growth of carbon stock in the community forest is expected into 2038, that growth would be at a lesser rate than during the preceding decade. This suggests that CFM management should address forest utilization practices with a focus on maintaining long term carbon stock growth. Additional measures to address the impact of drought conditions and to safeguard against forest fires are required to sustain tree species’ growth and expansion in order to increase their carbon accumulation potential. Thailand’s community forest involvement in REDD+ and participation in its international carbon market could create more economic opportunities for local communities.

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Section: Discussionmentioning

confidence: 99%

Above-ground carbon stock and REDD+ opportunities of community-managed forests in northern Thailand

et al. 2021

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“…In India, a study on G. indica reveals that precipitation and temperature are the main factors that favor the distribution of this species (Palkar et al, 2020). Moreover, the distribution of the species is done according to the environmental conditions (Thammanu et al, 2021). Thus, the species would aggregate where environmental conditions are favorable for their development.…”

Section: Discussionmentioning

confidence: 99%

Structural characterization of over-exploited forest species: Case of Garcinia kola Heckel (Clusiaceae) in Cte dIvoire

Komenan¹,

Koffi²,

Koné³

et al. 2021

J. Ecol. Nat. Environ.

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The purpose of this study is to define the structural characteristics and spatial distribution of endangered Garcinia kola in Côte d'Ivoire, in order to ensure sustainable management of the species. The study was conducted in two natural growth zones (Affery and Biankouma) of the species and involved 94 trees with a minimum diameter of 10 cm measured at 1.30 m from the ground. The data collection method consisted of a mobile inventory within 100 m × 100 m plots. The study revealed that G. kola has an aggregated distribution. Both stands are dominated by medium class trees, [30-40 cm], [40-50 cm], [50-60 cm]. Modeling of all trees in each stand, divided into diameter classes according to the Weibull distribution, shows that G. kola has a low regeneration potential, with a shape parameter c = 2.41 and 1.74. In addition, basal area and tree density are very low. Sustainable management of this species therefore requires awareness of its domestication.

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“…Tropical montane forests are the most unique, with high diversity of vegetation [14,15], but they are also among the most threatened ecosystems by anthropogenic activities [5,16,17]. Forest disturbances, particularly selective removal of trees [18], have impact on the species composition and dominance on mountainous landscape [11,19], particularly on the lower elevations [20]. The dynamics of interaction among individual species and their environmental and disturbances influence species composition through coexistence or exclusion [8].…”

Section: Introductionmentioning

confidence: 99%

Tree species composition along environmental and disturbance gradients in tropical sub-montane forests, Tanzania

2023

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Understanding the environmental and disturbance determinants of tree species dominance and community composition in an ecosystem, is important for informing management and conservation decisions, through maintaining or improving the existing forest composition and structure. This study was carried out to quantify the relationship between forest tree composition structure and environmental and disturbance gradients, in a tropical sub-montane forest of Eastern Usambara. Vegetation, environmental, and anthropogenic disturbance data for 58 plots across Amani and Nilo nature forest reserves were obtained. Agglomerative hierarchical cluster analysis and canonical correspondence analysis (CCA) were used to identify plant communities and analyze the influence of environmental variables and anthropogenic disturbances on tree species and community composition respectively. Four communities were identified and CCA results showed that the variation was significantly related to elevation, pH, Annual mean temperature, temperature seasonality, phosphorus nutrients and pressures from adjacent villages and roads. Likewise, environmental factors (climate, soil and topography) explained the most variation (14.5%) of tree and community composition in relation to disturbance pressure (2.5%). The large and significant variation in tree species and community patterns explained by environmental factors suggests a need for site-specific assessment of environmental properties for biodiversity conservation plans. Similarly, the intensification of human activities and associated impacts on natural environment should be minimized to maintain forest species composition patterns and communities. The findings are useful in guiding in policy interventions that focus on minimizing human disturbances in the forests and could aid in preserving and restoring the functional organization and tree species composition of the sub-tropical montane forests.

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The influence of environmental factors on species composition and distribution in a community forest in Northern Thailand

Cited by 49 publications

References 56 publications

Above-ground carbon stock and REDD+ opportunities of community-managed forests in northern Thailand

Above-ground carbon stock and REDD+ opportunities of community-managed forests in northern Thailand

Structural characterization of over-exploited forest species: Case of Garcinia kola Heckel (Clusiaceae) in Cte dIvoire

Tree species composition along environmental and disturbance gradients in tropical sub-montane forests, Tanzania

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