sÃo bartolomeu河流域景观背景下的森林分析,viÇosa-mg

IF 0.6 4区 农林科学 Q4 FORESTRY Revista Arvore Pub Date : 2021-01-01 DOI:10.1590/1806-908820210000033
Joana Angélica Cavalcanti Pinheiro, E. I. Fernandes-Filho, L. Gomes, V. P. Soares, T. S. Sarcinelli
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引用次数: 1

摘要

近年来森林面积的减少影响了景观破碎化,损害了生态系统功能。天然林除了维持生物多样性外,还能改善流域的水文条件。本研究旨在描述米纳斯吉拉斯州Zona da Mata的s o Bartolomeu河流域剩余森林碎片的景观结构,并评估其地理和土壤学代表性。研究区域负责viosa的大部分供水,而它正在经历城市化进程,除了评估优先保护区域外,还加强了订购使用的必要性。与景观结构相关的研究是基于森林破碎片的度量。采用卡方检验对地形分区、坡面和土壤的代表性进行了分析。天然林呈现大小不等的碎片,碎片之间的接近程度令人满意。然而,森林斑块形状不规则,有利于边缘效应,并随着碎片大小的增加而趋于不规则。地形学和土壤学的代表性结果表明,土地利用依赖于景观中的位置。经统计检验,河流阶地(48.3%)、凸坡(2.3%)、红黄山岗(53.1%)、北坡面(28.5%)和西坡面(20.9%)的森林出现频率低于预期。为了城市规划和生物多样性保护的目的,建议在景观的不同分区中平衡森林面积,优先考虑森林碎片的连接。
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FOREST ANALYSIS IN THE LANDSCAPE CONTEXT AT SÃO BARTOLOMEU RIVER BASIN, VIÇOSA-MG
ABSTRACT The reduction of forest areas in recent years has influenced landscape fragmentation, compromising ecosystem functions. The natural forest, in addition to maintaining biodiversity, is capable of improving the hydrological conditions of the watershed. This study aimed to characterize the landscape structure of the remaining forest fragments in the São Bartolomeu river basin, at the Zona da Mata of Minas Gerais State, and to assess their physiographic and pedological representativeness. The study area is responsible for most of Viçosa’s water supply, while it is undergoing an urbanization process, reinforcing the need for ordering the use, besides the evaluation of priority areas for conservation. The studies related to the landscape structure were based on the metrics of forest fragments. The representativeness was analyzed regarding the aspects of topographic compartmentation, slope faces, and soils, using the Chi-square test. The natural forest presents fragments varying from medium to large size, with satisfactory proximity between them. However, the forest patches have irregular shapes, favoring the edge effect with a tendency towards irregularity as the fragment size increases. The results of the physiographic and pedological representativeness indicate that the land uses are dependent on the location in the landscape. According to the statistical test, the forest occurs less frequently than expected on the river terraces (48.3%) and convex slopes (2.3%), as well as on the Red-Yellow Acrisols (53.1%), and on the north (28.5%) and west (20.9%) faces. For urban planning and biodiversity conservation purposes, it is recommended to balance the forest area in the different compartments of the landscape, giving priority to the connection of forest fragments.
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来源期刊
Revista Arvore
Revista Arvore FORESTRY-
CiteScore
1.00
自引率
0.00%
发文量
32
审稿时长
4-8 weeks
期刊介绍: A Revista Árvore é um veículo de comunicação científica da Sociedade de Investigações Florestais – SIF. O jornal é de acesso gratuito, revisado por pares, que publica bimestralmente trabalhos científicos originais no campo da Ciência Florestal. As áreas temáticas para publicação são: Ambiência e Conservação da Natureza, Manejo Florestal, Silvicultura e Tecnologia da Madeira e Utilização de Produtos Florestais. A política editorial visa manter alta conduta ética em relação à publicação e aos seus funcionários, rigor na qualidade dos artigos científicos, seleção de revisores qualificados, respeito profissional aos autores e processo de tomada de decisão imparcial. A Revista Árvore publica artigos apenas em inglês. Artigos de revisão podem ser publicados se houver uma discussão relevante resumindo o estado da arte sobre o assunto. A revisão estrita da literatura não é aceita.
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