Changes in soil moisture and riparian forest structure after a dam construction

Vagner Santiago do Vale, Jamir Afonso do Prado Júnior, Sérgio de Faria Lopes, Carolina de Silvério Arantes, Diego Raymundo Nascimento, Olavo Custódio Dias Neto, André Eduardo Gusson, Lilian Cristina da Silva Santos, Ivan Schiavini

Resumo


This study evaluated the impacts of water flow reduction in soil moisture and changes in the arboreal community in a riparian forest in Minas Gerais. Our hypothesis is that few years after river flow reduction can alter soil moisture and change tree community structure. We performed soil moisture analyses to confirm reduction in soil moisture and a four-year-monitoring of the tree community structure in 1.1 ha of riparian forest. Soil moisture was reduced, especially during the dry season at the sector located near the original river flow. In this sector we found higher mortality and broken stems of living trees, strongly reducing basal area and causing a little reduction in trees density. This study highlights the strong impacts of dams’ construction in the flora and water availability downstream from the dam.

Palavras-chave


dynamics, floristic changes, impoundment, mortality

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Caros pesquisadores,

A revista Iheringa, Série Botânica está aberta à submissão de manuscritos. No entanto, alertamos que a Fundação Zoobotânica do Rio Grande do Sul encontra-se sob ameaça de extinção pelo PL n° 246/16 encaminhado e aprovado na Assembleia Legislativa, o que poderá comprometer a publicação dos artigos.

Atenciosamente,

Corpo Editorial.

 

Dear Researchers,

The magazine Iheringia, Série Botânica is open to submit manuscript. However, we warn that the Zoobotanical Foundation of Rio Grande do Sul is under threat of extinction by PL no. 246/16 sent and approved in the Legislative Assembly, we were obliged to temporarily interrupt the receipt of manuscripts to the Journal.

Yours sincerely,

Editorial Board.


ISSN: 2446-8231

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