Flora and structure of the naturally regenerating riparian vegetation of the Rio Doce River: basis for environmental restoration actions

IF 0.9 4区生物学 Q4 PLANT SCIENCES

Australian Journal of Botany Pub Date : 2024-09-16 DOI:10.1071/bt23078

José Gustavo Santana Neves, Camila Silveira Souza, João Carlos Gomes Figueiredo, Cristina Pereira de Jesus Veloso, Marly Antonielle de Ávila, Odirlei Simões de Oliveira, Islaine Franciely Pinheiro de Azevedo, Rubens Manoel dos Santos, Geraldo Wilson Fernandes, Yule Roberta Ferreira Nunes

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引用次数: 0

Abstract

Context

The failure of the Fundão dam devastated a large area of the Atlantic Forest, causing damage to and loss of riparian forests. Considering all the ecological roles of a terrestrial and freshwater community, it is necessary to understand the functioning of riparian forests and their regenerative potential, which will be decisive in selecting actions to restore these ecosystems, especially Atlantic Forest remnants.

Aims

We evaluated the flora and structure of the regenerating stratum in three riparian vegetation remnants along the Rio Doce basin to support the propagation and restoration of the affected environments.

Methods

Plots of 5 m × 5 m were made in each area, totalling 77 sampling units. In these plots, all woody individuals with a diameter at soil height (DSH) of at least ≥1 cm and diameter at breast height (1.3 m from the soil) of at least <5 cm were marked, measured (in height and DSH), sampled and identified.

Key results

A total of 275 species distributed in 47 families were sampled, with Fabaceae the most diverse family and Siparuna guianensis Aubl. the most abundant species. Variation in β diversity was significant, and composition analysis showed that plots of each area tended to cluster. Principal component analysis and linear models showed that the edaphic parameters were not related to the richness and abundance of species in the sampled areas.

Conclusions

The areas sampled here serve as a reference for the restoration of impacted areas.

Implications

This study represents an important step towards knowing the species in reference areas for an active and efficient restoration in impacted areas.

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里约多塞河自然再生河岸植被的植物群和结构：环境恢复行动的基础

背景 Fundão 大坝的垮塌摧毁了大西洋森林的大片地区，造成河岸森林的破坏和损失。考虑到陆地和淡水群落的所有生态作用，有必要了解河岸森林的功能及其再生潜力，这对选择恢复这些生态系统（尤其是大西洋森林遗迹）的行动具有决定性意义。目的我们评估了 Rio Doce 盆地沿岸三个河岸植被残存区的植物群和再生层结构，以支持受影响环境的繁殖和恢复。方法在每个地区绘制 5 米×5 米的地块，共 77 个取样单位。在这些地块中，对土壤高度直径（DSH）至少≥1 厘米、胸径（距土壤 1.3 米）至少为 5 厘米的所有木质个体进行标记、测量（高度和 DSH）、取样和鉴定。主要结果共采样 275 个物种，分布在 47 个科，其中豆科物种最多，Siparuna guianensis Aubl.β 多样性差异显著，成分分析表明，每个区域的地块趋于聚类。主成分分析和线性模型表明，取样区域的土壤参数与物种的丰富度和丰度无关。结论取样区域可作为受影响区域恢复的参考。意义这项研究是了解参考区域物种以积极有效地恢复受影响区域的重要一步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Australian Journal of Botany 生物-植物科学

CiteScore

2.30

自引率

18.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Australian Journal of Botany is an international journal for publication of original research in plant science. We seek papers of broad interest with relevance to Southern Hemisphere ecosystems. Our scope encompasses all approaches to understanding plant biology. Australian Journal of Botany is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.