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Abordagens de conservação da água e do solo nas explorações agrícolas

Abordagens de conservação da água e do solo nas explorações agrícolas


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About the Book

A erosão perigosa do solo provoca a perda de terra, a redução da fertilidade da terra, a baixa produção agrícola, a fome, a sedimentação dos rios, o elevado teor de contaminantes na diminuição do abastecimento de água, as secas e o aumento das inundações, factores que podem causar catástrofes para a humanidade. Este estudo adoptou um desenho de investigação de correlação e utilizou a amostragem sistemática para selecionar a população da amostra, a amostragem intencional para selecionar a área de estudo e a amostragem aleatória simples para selecionar as unidades de extensão para estudo. Para a recolha de dados, foram utilizadas entrevistas a informadores-chave e discussões em grupos de discussão, bem como observações. A análise dos dados baseou-se em estatísticas descritivas e inferenciais. O estudo revelou que existe uma correlação positiva e significativa entre a dimensão da exploração agrícola e o emprego dos agricultores fora da exploração agrícola e a adoção de estruturas de controlo da erosão do solo. Os terraços foram construídos com mão de obra familiar limitada. Os rendimentos das culturas foram sub-óptimos e a taxa de adoção de estruturas de controlo da erosão do solo não foi significativamente diferente nas abordagens da bacia e da área focal. Antes de promover um projeto de conservação do solo, deve ser realizado um estudo de viabilidade para identificar os eventuais constrangimentos e a forma de os atenuar para aumentar a adoção.


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Product Details
  • ISBN-13: 9783639818093
  • Publisher: Edicoes Nosso Conhecimento
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Height: 229 mm
  • No of Pages: 96
  • Spine Width: 6 mm
  • Width: 152 mm
  • ISBN-10: 3639818091
  • Publisher Date: 15 Apr 2025
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 190 gr


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