W. Baudoin, Avana Tientcheu Marie Louise, Hamawa Yougouda, Nguetsop Victor François, Tsobou Roger, Ngnignindiwou Mouncharou Jonathan
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引用次数: 2
摘要
牧区资源的可持续管理需要了解牧地的植物多样性和生产力。本研究的目的是评估竹竹山天然牧场的植物区系多样性和承载能力。采用样方点对齐法对15个样地400 m2进行植物区系清查。采用全采法测定草本植物的地上生物量。共记录木本植物74种,隶属于20科56属09种。样地所记录的分类群从11种到36种不等。白茅是草地上最丰富的物种,存在比贡献为17.45%。种数最多的科为禾本科、豆科、菊科和苏柏科。该牧场的计算牧区价值为56.21%。这些牧草以显生植物(29.72%)和植生植物(24.32%)为主。根据牧草再生生物量估算,放牧区牧草生产力为6498.57 kg DM/ha,草地承载力为2.31 TLU/ha。这些结果表明,竹竹山的饲料潜力是多样化的,但仍有待开发。
Floristic diversity and management of fodder resources of the natural pastures of the Savanna Highlands of Western Cameroon
Sustainable management of pastoral resources requires knowledge in terms of floristic diversity and productivity of the rangelands. The objective of the present study carried out in the Bamboutos Mountains was to assess the floristic diversity and carrying capacity of the natural pastures. Floristic inventory was done using the method of quadrat point aligned in 15 plots of 400 m2. Aerial phytomass of herbaceous plants was measured by the full harvest method. A total of 74 species, including 09 woody plants belonging to 56 genera and 20 families were recorded. The number of taxa recorded in the plots varied from 11 to 36 species. Imperata cylindrica with a specific contribution of presence of 17.45% was the most abundant species in the rangeland. The species-richest families were Poaceae, Fabaceae, Asteraceae and Cyperaceae. The calculated pastoral value of the pasture was 56.21%. These pastures were dominated by phanerophytes (29.72%) and therophytes (24.32%). The forage productivity of the grazed area, estimated based on the regrowth biomass was 6498.57 kg DM/ha while the carrying capacity of the rangeland was 2.31 TLU/ha. These results showed that the fodder potential of the Bamboutos Mountains is enough diversified but remains under exploited.