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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >EFFECTS OF DIFFERENT AGGREGATES OF BAOBAB (ADANSONIA DIGITATA L.) TREES ON SOIL IN A SAVANNA ZONE OF GHANA
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EFFECTS OF DIFFERENT AGGREGATES OF BAOBAB (ADANSONIA DIGITATA L.) TREES ON SOIL IN A SAVANNA ZONE OF GHANA

机译：加纳萨凡纳地带鲍鲍不同树种对土壤的影响

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The influence of three different aggregates of baobab stands on soil was investigated at Doba in a semi-arid area ofnorthern Ghana with the aim of examining the different basal areas of the trees on some soil physico-chemicalproperties. A purposive sampling technique was used to select the baobab trees in natural stands categorized into highlyclumped,moderately-clumped and isolated stands and each stand type replicated three times. Each stand type waslocated within 20 m x 20 m of land with the clumped trees forming closed canopies. Soil samples were randomlycollected from two depths (0-10 and 10-20 cm) under the canopies and outside the canopies of the baobab stands usingauger and bulked on local site basis. Soil samples were air-dried, ground and sieved to pass through a 2-mm sieve andsome physico-chemical properties determined using standard laboratory methods. The results indicated that the physicalparameters especially, bulk density and gravimetric moisture content were similar under the three baobab stands whilstsome chemical properties showed variations. The bulk densities of soils under the isolated, moderately-clumped and thehighly-clumped stands were 1.76 ?± 0.03, 1.68 ?± 0.06 and 1.70 ?± 0.01 g m-3, respectively. The organic carbon, totalnitrogen and exchangeable potassium contents of the soils under the three baobab canopies were higher than those of thesoils of the nearby site. The study concludes that the baobab trees have improved the chemical properties of soils undertheir canopies.
机译：在加纳北部半干旱地区的多巴，研究了三种不同的猴面包树聚集体对土壤的影响，目的是研究树木的不同基础面积对某些土壤理化性质的影响。目的取样技术用于在自然林分中将猴面包树分为高丛，中丛和孤立林，每种林分重复三次。每种林分类型都位于20 m x 20 m的土地上，丛生的树木形成了封闭的树冠。从树冠下和猴面包树冠层外的两个深度（0-10和10-20 cm）随机采集土壤样品，并采用局部采摘方法。将土壤样品风干，研磨并过筛，使其过2毫米的筛子，并使用标准实验室方法确定一些理化特性。结果表明，在三个猴面包树架下，物理参数尤其是堆积密度和重量水分含量相似，而一些化学性质却表现出差异。隔离，中丛和高丛林分下的土壤容重分别为1.76±0.03、1.68±0.06和1.70±0.01 g m-3。三个猴面包树冠层下土壤的有机碳，总氮和可交换钾含量高于附近地点的土壤。研究得出的结论是，猴面包树改善了其冠层下土壤的化学性质。

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