Land use and above-ground biomass changes in a mountain ecosystem, northern Thailand

Hermhuk, Sutheera; Chaiyes, Aingorn; Thinkampheang, Sathid; Danrad, Noppakun; Marod, Dokrak

doi:10.1007/s11676-019-00924-x

Cited by 8 publications

(6 citation statements)

References 39 publications

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“…Open conditions provided better foraging ground for various species, making this a better habitat for a wide range of species (Raman et al 1998;Chettri et al 2001) The finding that the overall temporal variation density decreased may be supportive of the Intermediate Disturbance Hypothesis (IDH) following the previously mentioned study (Siri et al 2019). In this study area annual rainfall and the mean temperature increased (Duangdai and Likasiri 2015;Hermhuk et al 2019) and forest fires occurred with high frequency (Paansri et al 2019). IDH explains that the maximum diversity of a community will be obtained at an intermediate level of disturbance, and minimum diversity will be the result within areas of both minimal and extreme levels of disturbance (Bongers et al 2009).…”

Section: Discussionsupporting

confidence: 57%

Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Ponpithuk

Siri

Safoowong³

et al. 2020

Biodiversitas

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Abstract. Ponpituk Y, Siri S, Safoowong M, Suksavate W, Marod D, Duengkae P. 2020. Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand. Biodiversitas 21: 3644-3649. Temporal variations in the population of bulbuls (Family Pycnonotidae) were studied over the course of four years in a 16-ha lower montane permanent plot, Northern Thailand. This study aimed to determine the relationship of the temporal variation of forest gaps with the population size of the bulbul, which plays a crucial role in seed dispersal and insect control in tropical forest ecosystems. This long-term monitoring study in a permanent plot was conducted monthly from January 2016 through October 2019. Data were collected using the mist-netting method for the capture-recapture protocol with individual bird banding. A total of 33,120 traps hour for 46 months,180 traps hour per day and 720 traps hour per month were recorded. The banding of a total of 94 individual bulbuls resulted in their classification into 5 species, consisting of Puff-throated Bulbul (Alophoixus pallidus), Mountain Bulbul (Ixos mcclellandii), Black-crested Bulbul (Pycnonotus flaviventris), Ashy Bulbul (Hemixos flavala) and Flavescent Bulbul (Iole virescens). The annual average density of bulbul for four years tended to decrease, but the difference was not significant. The highest average population occurred in 2016 and the lowest in 2018 with the changes being attributable to forest gap. Over time, monthly detection of bulbuls decreased gradually under closed canopy conditions, while in forest gaps, bird detection remained constant. As gap conditions so did detection probabilities. Our findings suggest that natural forest gaps can play an essential role as a temporal inhibitor to the rapid bird population decrease in the lower montane forest. This study will be useful for bird conservation and in balancing ecosystems for sustainability and providing interest in conservation initiatives requiring spatially explicit estimates of density.

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Section: Discussionsupporting

confidence: 57%

Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Ponpithuk

Siri

Safoowong³

et al. 2020

Biodiversitas

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“…The MDF had a higher rate of carbon sequestration than the DDF. This result is similar to findings in a study of Doi Suthep-Pui National Park, also in northern Thailand, wherein it was determined that the total above-ground biomass of the MDF was higher than in other forest ecosystems, including DDF [ 9 ]. Dense canopy cover and a greater numbers of trees are both positively related to carbon sequestration rates [ 81 , 82 ].…”

Section: Discussionsupporting

confidence: 90%

“…This is characteristic of a forest wherein trees regenerate consistently as found in previous studies [ 71 – 74 ]. This is a positive indicator of future natural regeneration of tree species in the forests [ 9 , 75 , 76 ]. The result also revealed the height-class of tree species was normally distributed, resulting in a balanced height class size.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the CA-Markov model was developed from transition probability matrices in the community forest representing the changes for 2007 and 2018. The transition probability matrices for 2028 and 2038 were derived from the CA-Markov model; the spatial data reflected predicted changes in the community forest and estimated above-ground biomass and carbon stock [9,58,59]. All the statistical calculations were performed using version 5.10 of PC.ORD [60] and version 3.6.2 (2019-12-12) of the R program for Windows software [61].…”

Section: Plos Onementioning

confidence: 99%

“…Vast amounts of carbon can be found in above-ground biomass in amounts that vary based upon forest type, tree species composition, diversity, and other factors [7][8][9]. Understanding these factors and having accurate sequestration data can inform the efficacy of pursuing the myriad benefits of participating in international carbon markets [10].…”

Section: Introductionmentioning

confidence: 99%

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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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Bioenergy's role in the path to decarbonization

Suryawan,

Lim

2024

Decarbonization Strategies and Drivers to Achieve Carbon Neutrality for Sustainability

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Land use and above-ground biomass changes in a mountain ecosystem, northern Thailand

Cited by 8 publications

References 39 publications

Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

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

Bioenergy's role in the path to decarbonization

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