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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >LITTER PRODUCTION AND DECOMPOSITION OF DIFFERENT BAOBAB (ADANSONIA DIGITATA L.) STANDS IN A SAVANNA PARKLAND OF NORTHERN GHANA
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LITTER PRODUCTION AND DECOMPOSITION OF DIFFERENT BAOBAB (ADANSONIA DIGITATA L.) STANDS IN A SAVANNA PARKLAND OF NORTHERN GHANA

机译：加纳北部萨凡纳公园不同鲍勃（ADANSONIA DIGITATA L.）支架的凋落物产生和分解

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摘要

This study was conducted at Doba in northern Ghana with the aim of characterizing litter production and decomposition in relation to different natural baobab stands. Purposive sampling technique was used to select baobab trees based on three aggregation regimes of the stands: highly-clumped trees, moderately-clumped trees and isolated trees. Each stand type was replicated three times. In each stand category, four 1x1 m square litter traps were placed in the four cardinal directions under the tree canopies. The accumulated litter in each trap was collected at two-week intervals from January to December, a period of one year. Litter decomposition was carried out using the litter bags technique. Each stand category received a total of 30 nylon litter bags (10 x15 cm) with 1.0 mm mesh size. In each litter bag, 50g of litter was placed and the litter bags buried at a depth of about 20 cm randomly in each respective stand category and litter decomposition determined. The results showed that the total amount of litter produced in one calendar year under isolated, moderately-clumped and the highly-clumped stands were 3146.26gm -2 , 2963.04gm -2 and 3859.20 gm -2 respectively. The main litter components were leaf, flower, fruit, bark and twig. Litter decomposition varied significantly (P < 0.001) and the decomposition pattern in the three baobab stands showed an initial lag phase followed by rapid mass loss phase. However, litter decomposition in the highly-clumped stands was faster than those of the moderately-clumped and isolated baobab stands. The results further showed that the decomposition constants (k) obtained for the litter of the isolated and the highly-clumped stands were the same, while that of the moderately-clumped stand was slightly higher.
机译：这项研究是在加纳北部的多巴进行的，目的是表征与不同天然猴面包树林有关的凋落物产生和分解。根据林分的三种聚集方式，采用有针对性的取样技术选择猴面包树：高丛生树木，中度丛生树木和孤立树木。每个摊位类型重复三遍。在每种林分类别中，在树冠下的四个基本方向上都放置了四个1x1 m方形的凋落物陷阱。从1月到12月（为期一年），每隔两个星期收集一次，每个诱捕器中积累的垫料。使用垃圾袋技术进行垃圾分解。每个展位类别共接收30个尼龙网眼袋（10 x15厘米），网眼尺寸为1.0毫米。在每个垃圾袋中，放入50g垃圾，并在每个相应的林分类别中随机埋入约20厘米深度的垃圾袋，并确定垃圾分解。结果表明，在一个日历年中，孤立，适度结实和高度结实的林分产生的凋落物总量分别为3146.26gm -2，2963.04gm -2和3859.20 gm -2。凋落物的主要成分是叶，花，果实，树皮和树枝。凋落物分解变化显着（P <0.001），三个猴面包树林的分解模式显示出初始滞后阶段，随后是快速质量损失阶段。但是，高丛生林分的凋落物分解要快于中等丛生和隔离的猴面包树林分的凋落物分解。结果进一步表明，分离的和高度结实的林分凋落物的分解常数（k）相同，而中等结实的林分的分解常数略高。

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