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Salinização e suas consequências para as culturas hortícolas

Salinização e suas consequências para as culturas hortícolas

Marieme Fall

94,06 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Botánica y ciencias de las plantas
ISBN:
9786208570736
94,06 €
IVA incluido
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O objetivo desta investigação é compreender melhor a degradação da água de irrigação pela salinização, no contexto atual do Senegal. Desde há mais de três décadas, o Senegal assiste a uma degradação contínua dos solos, que se traduz num colapso contínuo do desempenho agrícola. O verdadeiro problema da agricultura senegalesa é a perda acentuada da fertilidade dos solos e da qualidade da água de irrigação.Estudos realizados pelo CILSS em novembro de 2010 mostram que, dos 3 805 000 ha de terras aráveis disponíveis no Senegal, cerca de 2 400 000 ha estão gravemente degradados, ou seja, 63%. Esta perda de solo deve-se principalmente aos efeitos combinados de factores como a utilização de adubos químicos, as queimadas, a desflorestação maciça, a sobrecarga de gado, a má qualidade da água de irrigação e, sobretudo, a diminuição e a instabilidade das chuvas, em parte devido à diminuição da floresta natural, com cerca de 20 000 ha de floresta perdidos todos os anos.

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