Assessment of natural regeneration status: the case of Durgapur hill forest, Netrokona, Bangladesh

Rahman, Mohammad Rezaur; Rahman, Md. Mizanur; Chowdhury, Md. Arif

doi:10.1080/24749508.2019.1600911

Cited by 12 publications

(9 citation statements)

References 33 publications

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“…However, the regeneration species composition is less than that of Dudhpukuria-Dhopachari Wildlife Sanctuary (120 species), Chunati Wildlife Sanctuary (105 species), Khadimnagor National Park and Tilagor Eco-Park of 55 species (Rahman et al 2011, Hossain et al 2013a, Hossain and Hossain 2014. But, the number of regenerating tree species is higher than that of Tankawati Natural Forest of Chittagong South Forest Division (29 tree species) (Motaleb and Hossain 2011) and Durgapur hill forest of Netrokona (27 tree species) (Rahman et al 2019a). In addition, Deb et al (2015) recorded the total regenerated understory species was 61 belonging to 27 families but it is not easy to compare with their findings because they have considered not only seedlings but also saplings.…”

Section: Resultsmentioning

confidence: 95%

Natural regeneration potential of Madhupur National Park, Bangladesh

Rahman

Hossain

et al. 2020

Bangladesh J. Bot.

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Natural regeneration is an essential tool to evaluate the overall health of a forest ecosystem. Natural regeneration of the tree species in Madhupur National Park showed 47 regenerating tree species among which Shorea robusta has maximum density (18,046 seedlings per ha) followed by Aporosa sp., whereas minimum density (19 seedling per ha) was recorded for Cassia nodosa, Litsea glutinosa, Grewia asiatica and Syzygium cumini, respectively. Relative density, relative frequency and relative abundance were estimated to assess the Importance Value Index (IVI) of the seedlings of different tree species. IVI of S. robusta was highest (66.25 out of 300) followed by Mallotus philippensis (27.33). G. asiatica, Derris robusta, and L. glutinosa showed the lowest IVI (0.93) among the regenerating tree species. Distribution of seedlings into different height classes showed that maximum number (31.4%) of seedlings in the height range of 50 - <100 cm. Among the recorded seedlings, Protium serratum showed maximum (11%) recruitment success. Alien invasive species, pineapple and banana based participatory agroforestry, frequent occurrence of fire, extensive collection of fuelwood and litter are the potential threats to the natural regeneration of Madhupur National Park.

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Section: Resultsmentioning

confidence: 95%

Natural regeneration potential of Madhupur National Park, Bangladesh

Rahman

Hossain

et al. 2020

Bangladesh J. Bot.

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“…Plots were located systematically to take advantage of light reaching the understory facilitated by canopy openings due to logging induced disturbance. Plants with dbh less than 2 cm and/or less than the height of 1 m were considered valid regeneration (Rahman et al, 2020). Subplot counts of individual seedlings were pulled together for each plot and converted to seedling counts per hectare.…”

Section: Samplingmentioning

confidence: 99%

Logging effects on seedling regeneration and diversity in a tropical moist semi-deciduous forest in Ghana

Damptey

Adofo

Duah-Gyamfi

et al. 2021

Geology, Ecology, and Landscapes

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The effect of time lag after logging on seedling dynamics was assessed in logged and unlogged forest plots located in the Pra-Anum Forest Reserve. Remnant tree attributes were sampled in six plots with sizes of 25 × 25 m in each forest type. Within each forest type, ten subplots with sizes 1 × 1 m were established for sampling seedling regeneration dynamics. Enumerated seedlings were grouped as pioneer, non-pioneer light demander, and shade-tolerant species. Regenerating seedlings were more diverse in the recently logged forest area characterised by Broussonetia papyrifera and Musanga cecropioides, and least in the unlogged forest driven predominantly by Celtis mildbraedii and Baphia nitida. Pioneer species were primarily dominant in the recently logged forest, while shade-tolerant and non-pioneer light-demanding species characterised the logged-over forest. Species richness and canopy openness of remnant stands explained 32 percent of the variations in regeneration richness between the logged and unlogged areas. Twenty-seven percent of the variations in seedling abundance was also explained by remnant trees richness, their size diameter and the degree to which their canopy has been opened. Logging-induced disturbance favours the sporadic emergence of pioneer species in recently disturbed areas which are later replaced by non-pioneer light-demanding or shade-tolerant species as light becomes limiting in the understory.

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“…For instance, the population structure characterized by least number of seedling and saplings as compared to mature trees suggests a poor regeneration status, whereas, absence of seedlings depicts no regeneration in the forest (Rahman et al 2011). Therefore, forest stand structure and regeneration status of the species is a key element to determine the health of forest ecosystem and also important parameters of stand biodiversity (Rahman et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Species diversity, population structure, and regeneration status of trees in Fakim Wildlife Sanctuary, Nagaland, Northeast India

Ao¹,

Changkija²,

Tripathi³

2020

Biodiversitas

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Abstract. Ao A, Changkija S, Tripathi SK. 2020. Species diversity, population structure, and regeneration status of trees in Fakim Wildlife Sanctuary, Nagaland, Northeast India. Biodiversitas 21: 2777-2785. The plant species composition and diversity represent the overall health of the forest ecosystems and provide useful insight on forest conservation, and the species regeneration is important in assessing the potential of the forests to serve the society on sustained basis. This present study aimed to assess the species diversity, population structure, and regeneration status of the trees in temperate forest of Fakim Wildlife Sanctuary, Nagaland, Northeast India. Tree species composition, population structure and regeneration status were analyzed by randomly establishing eight plots of 0.1 ha within the sanctuary. Density, basal area, abundance, evenness, and other diversity indices were calculated for mature trees with girth at breast height (GBH) ≥ 30 cm. A total of 60 tree species belonging to 40 genera and 27 families were recorded. The most dominant families recorded were Lauraceae and Rosaceae. The total tree density recorded from the forest was 432.5 individuals ha-1 with a basal area 42.8 m2 ha-1. Cinnamomum zeylanicum and Lithocarpus pachyphyllus had the highest density with 17.58 individuals ha-1 and Lithocarpus pachyphyllus had the highest basal area with 2.64 m2 ha-1. The species with the highest IVI was Betula alnoides (17.13). Girth class of 30-60 cm had the highest density and basal area with 280 individuals ha-1 and 20.7 m2 ha-1. The diversity indices such as Shannon-Wiener index, Simpson index, Pielou evenness index, and Margalef species richness index were 3.90, 0.93, 0.92, and 11.59, respectively in the wildlife sanctuary. The present study showed that 41% of tree species exhibited good regeneration status, 31% as fair regeneration, 8% as poor regeneration and 20% had no regeneration. The present data will be useful to understand the current status of tree species and will serve as baseline information to the forest department, policymakers and conservationists to develop management plans for the conservation of priority species in the area.

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Assessment of natural regeneration status: the case of Durgapur hill forest, Netrokona, Bangladesh

Cited by 12 publications

References 33 publications

Natural regeneration potential of Madhupur National Park, Bangladesh

Natural regeneration potential of Madhupur National Park, Bangladesh

Logging effects on seedling regeneration and diversity in a tropical moist semi-deciduous forest in Ghana

Species diversity, population structure, and regeneration status of trees in Fakim Wildlife Sanctuary, Nagaland, Northeast India

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