Influência do eucalipto em nosso meio ambiente.
Autor: Árvores dão frutos... | Publicado: 2013-06-30T11:24:00-07:00

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Atualmente a silvicultura, como é chamado o cultivo de
florestas comerciais, está em forte expansão pelo Brasil. O cultivo de
florestas comerciais, nas proximidades de áreas nativas, comprovadamente
contribui para o equilíbrio do ecossistema silvestre. A maior contribuição das
florestas comerciais está relacionada à conservação dos solos, principalmente
em solos mistos e frágeis em que o processo erosivo é bastante acentuado.
Nessas áreas, as florestas comerciais adotam uma postura de proteção aérea,
amortizando o impacto das chuvas no solo através de suas copas e da proteção
radicular (raízes) que a planta exerce na contenção da sedimentação do solo.







Fundamentalmente, junto às culturas comerciais ocorrem a
estabilização dos microclima e uma consequente regularidade dos ciclos
hidrológicos, fator muito favorável em relação às quantidades de chuvas nessas
regiões. Concluindo, sobre o mito de que o eucalipto absorve quantidades
exorbitantes de água, essa tese é absolutamente equivocada. Alguns estudos
apontam para uma outra realidade, sendo que o eucalipto, por ser uma espécie
arbórea, depende mais do processo de fotossíntese (reação química dos vegetais
utilizando gás carbônico + energia solar + água = oxigênio + água) para seu
crescimento, sendo que 70% dos nutrientes estão na própria planta. Além disso,
outras culturas absorvem mais água que o eucalipto por não terem as mesmas
características metabólicas que o eucalipto possui. 



Adaptado de: jcnet