Status of coastal plantations and its impact on land stabilization, soil PH and salinity at Nolchira range of Hatiya Island, Bangladesh.

Uddin, Mohammad Main; Hossain, Magda

doi:10.9790/2380-0345761

Cited by 6 publications

(12 citation statements)

References 7 publications

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“…Avicennia officinalis showed good performance only in the eastern coastline of the country (Drigo et al 1987). The present study along with other two studies (Haque et al 2000;Uddin and Hossain 2013) also found S. apetala to be the best planted species along the coast of Bangladesh. Studies were conducted in three forest beats along the coast, dissecting them into inland, middle part and seaside part of the Vol.…”

Section: Introductionsupporting

confidence: 81%

“…S. apetala stands of 27 years old attained mean DBH of about 21 cm and 24.5 cm, and height growth was 16.5 m and 18.5 m, respectively, for the two forest beats. However, A. officinalis stands attained 10 cm and 12 cm DBH, and 2 m and 3.5 m height, respectively (Uddin and Hossain 2013). Siddiqi and Khan (1990) reported the growth performance of S. apetala and A. officinalis was found to be lower in the Mirersarai and Sitakunda coastal forest ranges under the Chittagong coastal afforestation division compared to sample plots in the Patuakhali, Bhola and Noakhali coastal afforestation division as well as other parts of Chittagong coastal afforestation areas.…”

Section: Growthmentioning

confidence: 97%

“…These five species were also planted in other coastal sites (Das and Siddiqi 1985;Serajuddoula et al 1995). Several studies pointed out that the coastal afforestation program in Bangladesh is a very effective one in terms of conservation, growth, stock, amelioration of soil and micro climate, and shelter (Latif and Del Castillo 1990;Siddiqi and Khan 1990;Latif et al 1992;Saenger and Siddiqi 1993;Haque et al 2000;Siddiqi 2001;Uddin and Hossain 2013). The present study is an exploratory survey of the vegetation both planted and regenerated in the afforested sites at Mirersarai Forest Range of Bangladesh.…”

Section: Introductionmentioning

confidence: 93%

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Growth density and regeneration of afforested mangroves at Mirersarai forest range in Bangladesh

Uddin

Rahman

Hossain

et al. 2014

Forest Science and Technology

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The aim of the study was to determine growth performance of planted mangroves at three beats of Mirersarai forest range in the Chittagong coastal afforestation division, Bangladesh. This 22-29-year-old mangrove plantation showed satisfactory growth and regeneration with variations among different study sites. The study revealed that individual species density and overall density (stem/ha) in the study sites varied significantly (p 0.05) where density of Sonneratia apetala was maximum among five species followed by Excoecaria agallocha, Avicennia officinalis, Ceriops decandra and Bruguiera sexangula. Sonneratia apetala attained the highest mean diameter at breast height (DBH) (cm) and height (m) among all the plantation species. It was found dominant at the middle section plantations of three beats, whereas Bruguiera sexangula and Ceriops decandra were found absent at seaside plantation sites. Overall tree density was found to be highest at the middle part (1880 stem/ha) followed by inland (1610 stem/ha) and seaside (1087 stem/ha) plantations. Mean annual increment of height and of DBH were significantly higher for Sonneratia apetala (0.42 m/year, 0.81 cm/year) followed by Avicennia officinalis (0.32 m/year, 0.67 cm/year), Bruguiera sexangula (0.18 m/year, 0.40 cm/year), Excoecaria agallocha (0.16 m/year, 0.30 cm/year) and Ceriops decandra (0.05 m/year, 0.10 cm/year), respectively. Regeneration of vegetations showed promising performance in three beats. Sonneratia apetala showed rich regeneration at seaside plantations than inner parts in northern beats than those of southern beats. For all beats this species has an increased regeneration from inland to seaside plantation strips. Avicennia officinalis seedlings were found highest at the middle part of the plantation, whereas Excoecaria agallocha was found to be regenerated with high density at the inland part with a decreasing trend toward seaside strips. However, Bruguiera sexangula was found to be regenerated only at inland strips. Thus, this suggests that a coastal afforestation program with different species will show varied growth, regeneration and density at different situations according to species ecology and adaptability to the sites along the coast .

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Section: Introductionsupporting

confidence: 81%

Section: Growthmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 93%

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Growth density and regeneration of afforested mangroves at Mirersarai forest range in Bangladesh

Uddin

Rahman

Hossain

et al. 2014

Forest Science and Technology

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“…The growth of B. balcooa was also affected by high soil pH because it prefers a low soil pH of 5.5 and a suitable pH range of 4.5-6.0 for its cultivation (Khanikar 2020). Uddin and Hossain (2013) found that the soil salinity was higher in barren land than in older coastal plantations in Nolchira, Hatiya, and Noakhali coastal districts. Miah et al (2021) observed less growth performance of some non-mangrove species in mound plantations than in embankment plantations at Kattoli Forest Beat under the Chattogram Coastal areas.…”

Section: Resultsmentioning

confidence: 99%

Growth and development of bamboo in the coastal inundated area of Bangladesh

Miah¹,

Moula²,

Dey³

2023

J. Asiat. Soc. Bangladesh, Sci.

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Bamboo has been introduced to coastal raised land under the Sonneratia apetala plantation and grew barren land in inundated areas in the western coastal belt of Bangladesh. This study aimed to quantify the bamboo growth in inundated areas at minimound, plain land, and barren land and under the S. apetala plantation and characterize the impact of inundation, soil pH, and soil salinity. The experimental plantation was carried out by B. vulgaris and B. balcooa on a mini-mound on barren coastal raised land in 2018. Other experiments of B. vulgaris were carried out on mini-mound and plain land under the S. apetala plantation in 2019 and 2020. Seedlings were raised by branch cutting. Mini mounds were prepared with soil. The soil sample was collected at different depths in off-peak and peak periods to determine soil pH, electrical conductivity (dsm-1), and nitrogen%. The growth of B. vulgaris in survival (p-value 0.0004) and new culms initiation% (p-value 0.0068) were significantly higher than B. balcooa in the barren land. Soil electrical conductivity showed significantly higher in all soil depths at barren land than under S. apetala forest in off-peak (p-value 0.0000, 0.0000, 0.0016) and peak periods (p-value 0.0002, 0.0028, 0.0000). The higher soil salinity affects the growth of two bamboo species. The higher soil pH affected the growth of B. balcooa on barren land. The growth performance of B. vulgaris showed significantly better survival% (p-value 0.030), height (p-value 0.0010), girth (p-value 0.011), total culms per clump (p-value 0.0086), and new culms initiation% (p-value 0.022) on the mini mound than plain land under S. apetala forest in 2019 and 2020 except height growth. The present study observed an inundation impact on the growth of B. vulgaris in the plain land plantation. B. vulgaris performed better on mini-mound under the S. apetala forest in inundated coastal areas. J. Asiat. Soc. Bangladesh, Sci. 49(1): 55-69, June 2023

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“…Their growth rate is influenced by multiple biophysical parameters, like soil composition 44 , water salinity 45 , or temperature 46 . Differences in growth between sites are illustrated in Figure 1 for S. apetala mangroves in Bangladesh 34,35 and China 47 . Mangrove plantations with less than 20 years old show similar trunk diameters in both countries (Figure 1, b-c), but for older ages, Bangladeshi mangroves grow taller at the sites compared in Figure 1 b-c.…”

Section: Theoretical Background Mangrove Geometrymentioning

confidence: 99%

Integrating mangroves in dike designs: effect of tree growth and failure

Mancheño,

Vuik,

Wesenbeeck

et al. 2023

Preprint

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Mangrove forests reduce wave attack along tropical coastlines, decreasing the design requirements of coastal embankments. Wave reduction by mangroves depends on their surface area and stability against storms, but both aspects are often oversimplified or neglected in coastal protection designs. Here we present a framework to evaluate how mangrove belts influence embankment designs, including mangrove growth and failure by overturning and trunk breakage. This methodology is applied to Sonneratia apetala mangroves seawards from embankments in Bangladesh, considering forest widths between 10-1000 m (cross-shore). For design water levels of 5 m, wave reduction by mangrove forests shorter than 1 km mostly affects the slope protection and the bank erodibility, whereas the embankment height is less influenced by mangroves. Sonneratia apetala trees induce a relative maximum in wave attenuation by 10 years old, due to their large submerged canopy area. Once trees grow older than 20 years old, their canopy is emergent, and most wave attenuation is caused by trunk and roots. Canopy emergence exposes mangroves to wind loads, which are much larger than wave loads, and can cause tree failure during cyclones. These results stress the importance of including tree surface area and stability models when predicting coastal protection by mangroves.

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Status of coastal plantations and its impact on land stabilization, soil PH and salinity at Nolchira range of Hatiya Island, Bangladesh.

Cited by 6 publications

References 7 publications

Growth density and regeneration of afforested mangroves at Mirersarai forest range in Bangladesh

Growth density and regeneration of afforested mangroves at Mirersarai forest range in Bangladesh

Growth and development of bamboo in the coastal inundated area of Bangladesh

Integrating mangroves in dike designs: effect of tree growth and failure

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