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Key species selection for forest restoration after bauxite mining in the Eastern Amazon
Ecological Engineering ( IF 3.8 ) Pub Date : 2021-02-21 , DOI: 10.1016/j.ecoleng.2021.106190
Rodrigo de Souza Barbosa , Gizelia Ferreira Matos Pereira , Sabrina Santos Ribeiro , André Luiz Ferreria Hage , Gracialda Ferreira Costa , Rafael Paiva Salomão , Gustavo Schwartz

Bauxite mining has caused serious damage on local ecosystems and landscapes in the Eastern Amazon, Brazil. Considering these issues, the objectives of this study were to determine key species and their ecological characteristics that can contribute to forest restoration after bauxite mining. Key species are those with high frequency and abundance in different stages of vegetation succession. Data were obtained from forest inventories before forest slash down to extract bauxite and later subjected to factor analysis. The Phytosociological and Socioeconomic Index (PSI) was calculated with the following variables: abundance, frequency, dominance, live aerial biomass, commercial value of wood, and non-timber forest products of each species. The data comprised 24,600 individuals distributed in 462 species, 224 genera, and 62 families. Seventeen species, selected by PSI, were the most representative to restore areas after bauxite mining in the Eastern Amazon. The families with the highest richness were Lecytidaceae, Sapotaceae, and Fabaceae, representing 64.70% of the key species. Regarding abundance, the families Lecytidaceae, Urticaceae, and Fabaceae accounted for more than 75% of the individuals belonging to the key species. The 17 selected species belonged to the following ecological groups: late secondary (10), climax (5), initial secondary (1), and pioneer (1). The ecological knowledge of the selected species is important to plan and establish forest restoration projects, since ecological processes and functions can evolve n a more rapid and effective way.



中文翻译:

东亚马逊铝土矿开采后森林恢复的关键物种选择

铝土矿开采对巴西东部亚马逊的当地生态系统和景观造成了严重破坏。考虑到这些问题,本研究的目的是确定可对铝土矿开采后的森林恢复做出贡献的关键物种及其生态特征。关键物种是在植被演替的不同阶段具有高频率和丰度的物种。在砍伐森林以提取铝土矿之前先从森林清单中获取数据,然后再进行因子分析。用以下变量计算植物社会学和社会经济指标:每种物种的丰度,频率,优势,活地空中生物量,木材的商业价值和非木材林产品。数据包括分布在462个物种,224个属和62个科中的24,600个人。十七种 由PSI选择的地区,是东亚马逊地区铝土矿开采后恢复土地最具代表性的地区。最富有的家庭是丝科豆科,占关键物种的64.70%。关于丰度,鳞翅目荨麻科豆科的科目占主要物种的75%以上。选定的17个物种属于以下生态组:次生(10),高潮(5),初生(1)和先锋(1)。选定物种的生态知识对于规划和建立森林恢复项目非常重要,因为生态过程和功能可以以更快速有效的方式发展。

更新日期:2021-02-21
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