| 孟加拉哈提亚地区海岸造林对土壤性质的影响 |
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| 作者姓名： | K.M.Shaifullah S.M.Sirajul Haque M.Sujauddin Shyamal Karmakar |
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| 作者单位： | Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong 4331, Bangladesh |
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| 摘 要： | 在孟加拉诺阿卡利地区及相临裸地,对海岸植被(12年和17年生无瓣海桑Sonneratia apetala)进行探索性研究,以便了解海岸造林对土壤特性的影响.在三种不同地带(内陆、中部、海边),在12年生和17年生无瓣海桑林下,土壤深度分别为0-10,10-30和30-40cm,土壤湿度、土壤粒度、有机质、C含量、总N、pH、有效P、K、Na、Ca和Mg含量明显高(p≤0.05,p≤0.01,p≤0.001)于其相临裸地的数据,土壤含盐量明显(p≤0.01)低于其相临裸地的数据.在内陆CharAlim植被,土壤表面的土壤湿度,土壤粒度,有机质,C含量、总N、pH、土壤含盐量、有效P、K、Na、Ca和Mg含量分别为:31.09%、2.24 g·cm-3、2.41%、4.14%、0.58%、7.07、O.09 dS·cm-1、28.06 mg·L-1、O.50 mg·L-1、11.5 mg·L-1、3.30 mg·L-1和2.7 mmol·kg-1;而在相邻的Char Rehania贫瘠地区的相同土壤深度,其相关值分别为:16.69%、1.25g·cm-3、O.43%、0.74%、O.25%、6.57、0.13 dS·cm-1、13.07mg·L-1、O.30mg·L-1、1.4 mg·L-1、O.30 mmol·kG-1和0.50 nag·L-1.然而,在小内陆到海边的植被中,土壤湿度、土壤密度、有机质、C含量、总N、pH、有效P、K、Na和Ca含量逐渐降低,而土壤含盐量、Na和Mg含量却逐渐增加.虽然,在植被与相临裸地的不同土壤深度中土壤质地不同,植被地中砂土份额明显(p≤0.01)低于相临裸地,而粉砂土份额则明显(p≤0.001)高于裸地.在本研究中,所有参数的评价也在为其他地区相关研究得到应用.
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| 关 键 词： | 海岸造林 无瓣海桑人工林 土壤物理化学特性 造林效应 土壤质地 盐基离子 无瓣海桑(Sonneratiaapetala) 孟加拉国 |
| 收稿时间： | 19 November 2006 |
Coastal afforestation effects on soil properties at Hatiya in Bangladesh |
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| K.M.Shaifullah,S.M.Sirajul Haque,M.Sujauddin,Shyamal Karmakar.Coastal afforestation effects on soil properties at Hatiya in Bangladesh[J].Journal of Forestry Research,2009,20(3):243-248. |
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| Authors: | K M Shaifullah S M Sirajul Haque M Sujauddin Shyamal Karmakar |
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| Institution: | (1) Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong, 4331, Bangladesh |
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| Abstract: | An exploratory study was conducted in the coastal plantation (12- and 17-year-old Sonneratia apetala) of Char Alim and Char Piya and their adjacent barren lands at Char Rehania and Char Nurul Islam in Hatiya under Noakhali
district in Bangladesh to determine afforestation effects on soil properties. At soil depths of 0–10, 10–30 and 30–40 cm across
three different land strips viz. inland, middle and sea side in 12- and 17-year-old keora (Sonneratia apetala) plantations, soil moisture, particle density, organic matter and C, total N, pH, available P, K, Na, Ca and Mg were significantly
(p≤0.05, p≤0.01, p≤0.001) higher, and soil salinity significantly (p≤0.001) lower than that in their adjacent barren lands. Soil moisture, particle density, organic matter and C, total N, pH,
soil salinity, available P, K, Na, Ca and Mg of surface soil in Char Alim plantation at inland were 31.09%, 2.24 g·cm−3, 2.41%, 4.14%, 0.58%, 7.07, 0.09 dS·cm−1, 28.06 mg·L−1, 0.50, mg·L−1 11.5 mg·L−1, 3.30 mg·L−1 and 2.7 mmol·kg−1, respectively. Their corresponding values for the same depth and land position at adjacent Char Rehania barren land were
16.69%, 1.25g·cm−3, 0.43%, 0.74%, 0.25%, 6.57, 0.13 dS·cm−1, 13.07mg·L−1, 0.30 mg·L−1, 1.4 mg·L−1, 0.30 mmol·kg−1 and 0.50 mg·L−1, respectively. Soil moisture, particle density, organic matter and C, total N, pH, available P, K and Ca decreased, and soil
salinity, available Na and Mg increased from inland towards sea side in the plantations. Although soil texture did not differ
in most soil depths between plantation and adjacent barren land, proportion of sand particle was significantly (p≤.01) lower and silt particle significantly (p≤0.001) in the plantations higher than that in their adjacent barren lands. In the study, evaluation of all the parameters
was also done for the other pair of lands. |
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| Keywords: | coastal afforestation keora plantation soil physicochemical properties afforestation effect soil texture soil base cations Sonneratia apetala Bangladesh |
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