Comparative study of some soil properties in forested and deforested areas in Cox’s Bazar and Rangamati Districts, Bangladesh

Zaman, M. A.; Osman, Khan Towhid; Haque, Shamima

doi:10.1007/s11676-010-0077-0

Cited by 24 publications

(23 citation statements)

References 22 publications

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“…A few researches have estimated above-ground forest C stocks in Bangladesh. C stocks were found to vary with land uses, including mangrove and coastal (99 Mg C ha -1 ; [22]), protected contiguous and fragmented (34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53) Mg C ha -1 ; [15]), bamboo (53 Mg C ha -1 ; [23]), hill (103 Mg C ha -1 ; [16]) and homestead (53 Mg C ha -1 ; [17]) forests. These C stocks have been found to be dependent on the stand structure (e.g., tree height, DBH, density, basal area) [24,25] and tree species [26,27], and stands with fast-growing tropical tree species having the highest forest C stocks (201 Mg C ha -1 ; [28]).…”

Section: Introductionmentioning

confidence: 99%

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Baul

Chakraborty

Nandi

et al. 2020

Preprint

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BackgroundThis study aimed to estimate the carbon (C) stocks in homestead forest ecosystems (trees, litterfall, and soil) of Maheshkhali Island in Bangladesh and how tree species diversity and stand structural variation affected these C stocks. We randomly surveyed a total of 239 homestead forests proportionately allocating in hillside (67), beachside (69), and inland (103) in 2019 for measuring woody plants and sampling litterfall and C in soil at 0-30 cm depth. Tree (above- and below-ground) biomass was estimated by using pan-tropical allometric equations, and carbon of litterfall and soil were analyzed in a laboratory. ResultsWe found a total of 52 tree species, of which, 41, 42, and 48 species were in the hillside, beachside, and inland, respectively, corresponding to the individuals of 840, 540, and 1504 sampled. According to the results, species diversity, richness, stand density, basal area (BA), and tree diameter at breast height (DBH) and height were significantly (p ≤ 0.05) greater in the hillside and inland homestead forests, compared to the beachside. Most abundant species, for example, Mangifera indica, Samanea saman, and Artocarpus heterophyllus in the inland and hillside homestead forests stored most C in biomass, compared to the beachside forest. Tree biomass C stocks were 48-67% greater in the inland and hillside than on beachside forests due to significantly (p ≤ 0.05) greater stand density, BA, and DBH. The overall C stock of litterfall was 0.1% of the total biomass carbon. C stock in soil surface was greatest in the hillside homestead forests due to the greatest litterfall. The total soil C stock was also affected by tree species, stand density and species richness, and their interaction with soil properties. Total soil C stocks across the depths were greatest (51 Mg ha-1) in the inland homestead forests, with the greatest stand density and species richness. ConclusionsHomestead forest ecosystems across the area stored total 96 Mg C ha-1, which thus can contribute to climate change mitigation while generating C credit for small-scale homestead forests owners as well as conserving biodiversity in Bangladesh and countries alike.

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Section: Introductionmentioning

confidence: 99%

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Baul

Chakraborty

Nandi

et al. 2020

Preprint

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“…Over-harvesting could have significant undesirable ecological consequences including losses in biodiversity and soil quality [5]. In recent years, much attention has been paid to understanding the impacts of timber harvesting on soil physical and chemical properties in general and on soil fertility in particular.…”

Section: Introductionmentioning

confidence: 99%

Effects of Cutting Intensity on Soil Physical and Chemical Properties in a Mixed Natural Forest in Southeastern China

Zhou

et al. 2015

Forests

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Abstract:The mixed Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.), Masson's pine (Pinus massoniana Lamb.), and hardwood forest is a major forest type in China and of national and international importance in terms of its provision of both timber and ecosystem services. However, over-harvesting has threatened its long-term productivity and sustainability. We examined the impacts of timber harvesting intensity on soil physical and chemical properties 10 and 15 years after cutting using the research plots established with a randomized block design. We considered five treatments, including clear cutting and low (13.0% removal of growing stock volume), medium (29.1%), high (45.8%), and extra-high (67.1) intensities of selective cutting with non-cutting as the control. The impact on overall soil properties derived from principal component analysis showed increasing with a rise in cutting intensity, and the most critical impact was on soil nutrients, P and K in particular. Soil nutrient loss associated with timber harvesting even at a low cutting intensity could lead to nutrient deficits in this forest although most of the soil physical properties could be recovered under the low and medium intensities of cutting. These results indicate that clear cutting and the selective cutting of extra-high and high intensities should be avoided in this type of forest in the region.

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“…Some physico-chemical parameters were selected as indicator of soil quality and were investigated by [11]. Zaman et al [12] had studied under the selected different land use system in Dimoria Development Block under Kamrup District of Assam India. Chandra et al [13] had discussed about the temperate and dry deciduous forest covers major portion of terrestrial ecosystem in India.…”

Section: Introductionmentioning

confidence: 99%

Association of Soil Parameters with Various Age Classes of Forests of Mukundpur, Satna, Forest Division, Madhya Pradesh, India

Singh¹

2018

ASRJ

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Aims: This forest area was susceptible to illicit felling, encroachment and illicit mining. From this problem the forests are changing from stocked - under stocked - blank forests. The majority of the area are blank and under stocked category. To re-vegetate the blank and under stocked area into stocked forests, the soil parameters in the study area were needed to be studied in detail. In the present study the associations of soil parameters like pH, electrical conductivity, availability of major nutrients (nitrogen, phosphorous and potassium) and micro nutrients like (copper, manganese, iron and zinc) with various age classes of forests were analyzed. Study Design: Stratified systematic random sampling. Place and Duration of Study: Study area was the forest area of 111.55 km2 of Mukundpur range of Satna Forest division, Madhya Pradesh, India. Field work was carried out during October 2015 to January 2016. Methodology: The vegetation sampling had been done to assess the forest resource survey. Stratified systematic random sampling method was used for sampling the vegetation. The minimum numbers of sample points were calculated using statistical formula. The 151 sample points at 30”x 30” were selected on safer side with the help of GPS. Half kg of soil sample was collected from central quadrat from the depth of 30 cm from the sample point and air-dried under shade. These samples were sent to soil testing lab Rewa to assess the soil parameters pH, electrical conductivity, organic carbon, available nitrogen, available P2O5, available K2O and micronutrient analysis for availability of zinc, iron, manganese and copper. The Microsoft access program was developed to evaluate the above soil parameters in various age classes of forests. Age classes of forest are defined as, Mature: where average girth of forest trees is more than 120 cm, Middle age: where the average girth of trees of a particular forest stands between 61-120 cm, Young age: where average girth of trees of particular stand is below 60 cm. Results: Results of individual soil parameters on various age classes of forests were summarized below: The average value of pH in different age classes did not change significantly with average value of pH of the study area. The electrical conductivity within encroachment and blank category significantly changed but in medium and young age classes it did not differ significantly with average electrical conductivity of the study area. In encroachment and blank organic carbon content and available nitrogen were significantly higher but in medium and young age classes these parameters did not change significantly with the average value of organic carbon content and available nitrogen of the study area. The average value of available phosphorous in blank and young age classes did not change significantly but in encroachment and medium young age class it was significantly higher than the average value of available phosphorous of the whole study area. The average value of available K2O in encroachment, blank and young age class did not change significantly but it changed significantly in medium age class with average K2O value of study area. Except the encroachment category, the average zinc and iron value in blank, medium and young age classes did not change significantly with average value of the study area. The average value of Mn in encroachment and blank varied significantly but in medium and young category it did not change significantly with the average value of the study area. The average values of Cu with in Blank and young age classes did not change significantly but it had changed significantly in encroachment in medium age class with average value of the study area. The results of combined effects of pH, EC, Organic Carbon and combined impact of nitrogen, P2O5 and K2O (macro nutrients) did not have significant association within various age classes of study area. The results of combined effects of Zn, Fe, Mn and Cu did not have significant association within various age classes of study area. Conclusion: The effects of pH, electrical conductivity and organic carbon were not significant in age classes of study area either individually or jointly. The available nitrogen did not play significant role in age class formation of forest but P2O5 and K2O did make significant impact on medium age classes individually, but the combined effects of nitrogen, P2O5 and K2O (macro nutrients) did not have significant association within various age classes of study area. Individually the Zn, Fe and Mn did not play significant impact on age class formation of the forest, though Cu is significant in medium age classes. The overall impacts of Zn, Fe, Mn and Cu did not have significant association within various age classes of study area.

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Comparative study of some soil properties in forested and deforested areas in Cox’s Bazar and Rangamati Districts, Bangladesh

Cited by 24 publications

References 22 publications

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Effects of Tree Species Diversity and Stand Structure on Carbon Stocks of Homestead Forests in Maheshkhali Island, Southern Bangladesh

Effects of Cutting Intensity on Soil Physical and Chemical Properties in a Mixed Natural Forest in Southeastern China

Association of Soil Parameters with Various Age Classes of Forests of Mukundpur, Satna, Forest Division, Madhya Pradesh, India

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