Natural regeneration potential of Madhupur National Park, Bangladesh

Rahman, Rayhanur; Hossain, MK; Hossain, Akhter; Hasan, Mohammad Emran

doi:10.3329/bjb.v49i4.52515

Cited by 4 publications

(7 citation statements)

References 13 publications

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“…Kumar and Saikia (2020) reported that, in case of density, Shorea robusta was the most dominant tree followed by Diospyros melanoxylon, Buchanania cochinchinensis, Madhuka longifolia, and Butea monosperma in Ranchi Sal forests, Jharkhand, India. However, the seedling density (28923±16392) of individuals/ha of Shorea robusta in the present study was higher than the seedling density (22071 individuals/ha) of Ranchi Sal forests, Jharkhand, India (Kumar & Saikia, 2021), Madhupur National Park, Bangladesh (18046 seedlings/ha) (Rahman et al, 2020), Lalgarh forest range of west Bengal, India (16550 seedlings/ha) (Manna & Mishra, 2017), Sal forests of Satpura Tiger reserve, Madhya province, India (6372 seedlings/ha) (Chaubey & Sharma, 2013) and Sal forests of West Bengal, India (670 seedlings/ha) (Nag & Gupta 2014). But lower than the managed Sal Forest area (35834 individuals/ha) of Terai Sal Forest, Western Nepal (Baral & Ghimire, 2020).…”

Section: Discussioncontrasting

confidence: 82%

Tree diversity and regeneration dynamics toward forest conservation and environmental sustainability: A case study from Nawabganj Sal Forest, Bangladesh

Jubair,

Rahman,

Sarmin

et al. 2023

JASE

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The objective of this study was to examine the regeneration dynamics and population structure of the most prevalent tree species, Shorea robusta (Sal), alongside four other dominant tree species (Tectona grandis, Syzygium cumini, Trema orientale, and Cassia fistula) in the Nawabganj Sal Forest in Bangladesh. The regeneration status and tree diversity of all documented tree species were assessed using a simple random sampling technique. Among the 30 species, 5 species (Shorea robusta, Tectona grandis, Trema orientale, Gmelina arborea, and Artocarpus heterophyllus) exhibited favorable regeneration state, whereas 15 species had moderate regeneration status. However, the absence of the condition 'no regeneration' was due to the absence of the adult stage, which resulted in the absence of seedlings and saplings. The quantity of seedlings was greater during the rainy season compared to the dry season. The girth class distribution of Shorea robusta and all other studied tree species combined exhibited a reverse J-shaped population curve. There was a decline in tree density as the girth class increased, and trees with a larger girth class accounted for 34 individuals per hectare, indicating a strong ongoing regeneration capability. The Shannon-Wiener diversity index, Simpson's dominance index, Pielou's evenness index, and Margalaf's species richness index had values of 0.223, 0.937, 0.077, and 2.249, respectively. These values imply a limited diversity of tree species in the examined forest. Shorea robusta has the highest dominance (m²/ha), followed by Tectona grandis (0.091), Syzygium cumini (0.087), Trema orientale (0.022), and Cassia fistula (0.008). The cumulative basal area of the tree species examined amounted to 40.04 m²/ha, with Shorea robusta accounting for 39.81 m²/ha. This indicates that Sal is the prevailing tree species in the forest. Nevertheless, this study offers fundamental data regarding the current condition of the tropical Sal Forest toward forest conservation and environmental sustainability.

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Section: Discussioncontrasting

confidence: 82%

Tree diversity and regeneration dynamics toward forest conservation and environmental sustainability: A case study from Nawabganj Sal Forest, Bangladesh

Jubair,

Rahman,

Sarmin

et al. 2023

JASE

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“…The study was conducted in the Madhupur Sal forests (locally known as Madhupur Garh), Bangladesh's largest belt of Sal forests (Figure 1). Shorea robusta is the dominant species and usually forms 75% of the total tree individuals in the natural forest patches (Rahman et al 2019). The area is located between 24°30′-24°50′ N and 90°00′-90°10′ E (Rahman et al 2017).…”

Section: Materials and Methods Description Of The Study Areamentioning

confidence: 99%

“…Shorea robusta is the dominant species and usually forms 75% of the total tree individuals in the natural forest patches (Rahman et al 2019). The area is located between 24°30′-24°50′ N and 90°00′-90°10′ E (Rahman et al 2017). The area is slightly elevated and the maximum height of about 18 -20 m from the mean sea level.…”

Section: Materials and Methods Description Of The Study Areamentioning

confidence: 99%

“…All physio-chemical characteristics (soil colour, soil texture, pH, organic matter, nitrogen, phosphorus, potassium, and sulphur) of uncovered and encroached areas soil are low here in comparison to the forests covered areas (Mondol 2021). The mean annual temperature is 26°C and the average of monthly maximum and minimum temperatures are 27.5°C and 18.5°C respectively (Rahman et al 2019).…”

Section: Materials and Methods Description Of The Study Areamentioning

confidence: 99%

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Comparison of Light Intensity under the Canopy between Sal (<i>Shorea robusta</i>) and Akashmoni (<i>Acacia auriculiformis</i>) in Agroforestry Stands: Effect of Tree Size and Distance from Individual Trees

Islam,

Pitol,

Khan

2023

J.Tropical Biodiversity Biotechnology

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Agroforestry is now inevitable for meeting the snowballing demand for food of the growing number of people worldwide. The light environment is the most important driving force for the growth and development of crops in agroforestry stand. The present study aims to quantify the light interception in two different agroforestry types, where one was composed of Shorea robusta (Sal) with Ananas comosus and another was Acacia auriculiformis (Akashmoni) with Ananas comosus. The relative Photosynthetically Active Radiation (PAR) was measured by a pair of quantum sensors in four directions from some individual trees. Spatial variation of PAR was also explored in both stand types. The results revealed that RPAR did not significantly (P>0.05) vary among four directions of individual trees in S. robusta but the A. auriculiformis showed a significant difference (P<0.001) along the four directions. Also, RPAR was significantly different (P<0.001) at different distances from individual trees under the canopy of both tree species. When the stand-level spatial variation of RPAR was considered, A. auriculiformis (0.177) and S. robusta (0.171) showed no significant difference (P>0.05) in the light environment. Our findings explored that both the tree species would be suitable species for agroforestry practices in the area. For the betterment of the natural S. robusta forest responsible authorities should encourage people to avoid A. auriculiformis plantations near the natural S. robusta forest which will enhance the conservation of S. robusta cover in its natural habitat.

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“…Eucalyptus were the lowest relative dominance (20%)(Paul et al 2013). According toRahman et al, (2019) in Madhupur Sal Forest the tree species exhibited a basal area of 20.689 ± 1.08 m 2 /ha and a stem density of 1412.93 ± 64.27 stems ha -1 . However, the diversity indices, including Shannon-Wiener's diversity, Simpson's evenness, Margalef's species richness, and Pielou's dominance, indicated lower diversity compared to other Protected Areas (PAs) in the South-Eastern region of Bangladesh.…”

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confidence: 99%

Assessment of Plant Diversity in Forest, Agroforest and Social Forestrty in the Degraded Madhupur Sal Forest of Bangladesh

Shafiqe,

Ashraf,

Rana

et al. 2024

Preprint

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The rich plant biodiversity found in tropical regions faces significant threats due to extensive human activities. Factors such as deforestation, habitat deterioration, human settlement, excessive resource exploitation, the introduction of invasive species, pollution, and the interconnected effects of global climate change collectively contribute to a substantial negative impact on biodiversity in these areas. The study aimed to assess plant diversity in Madhupur Sal Forest, Bangladesh, comparing agroforestry, social forestry, and natural Sal Forest sites. Using 90 random 10 × 10 m² plots, 47 species were recorded, including 31 trees, 5 shrubs, 6 herbs, and 5 climbers. Anacardiaceae, Arecaceae, Euphorbiaceae, and Fabaceae were prominent families, each with a species richness of 3. Agroforestry exhibited the highest species richness (14), Shannon-Wiener index (1.37), and Simpson's index (2.41) among plantation sites, surpassing social forestry. Social forestry, however, showed higher tree stand density (1673 trees/ha), tree basal area (28.67 m²/ha), and species evenness (0.67) than agroforestry. The natural Sal Forest site displayed the highest species richness (33), tree basal area (41.21 m²/ha), Shannon-Wiener index (2.15), and species evenness (0.78). Overlapping species occurred between agroforestry and social forestry (5 species), and agroforestry and natural Sal Forest (1 species), resulting in a higher similarity index (19%) for the former. No species overlapped between social forestry and natural Sal Forest. The study concluded that natural Sal Forest exhibited the highest diversity (2.15), while agroforestry proved beneficial for biodiversity compared to bare land.

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Natural regeneration potential of Madhupur National Park, Bangladesh

Cited by 4 publications

References 13 publications

Tree diversity and regeneration dynamics toward forest conservation and environmental sustainability: A case study from Nawabganj Sal Forest, Bangladesh

Tree diversity and regeneration dynamics toward forest conservation and environmental sustainability: A case study from Nawabganj Sal Forest, Bangladesh

Comparison of Light Intensity under the Canopy between Sal (<i>Shorea robusta</i>) and Akashmoni (<i>Acacia auriculiformis</i>) in Agroforestry Stands: Effect of Tree Size and Distance from Individual Trees

Assessment of Plant Diversity in Forest, Agroforest and Social Forestrty in the Degraded Madhupur Sal Forest of Bangladesh

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