Re-thinking the conservation of carbon, water and soil: a different perspective / Thomas Shaxson in Agronomy for Sustainable Development *, Vol.26, n°1 ([01/01/2006])

Public ISBD [article]  inAgronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 9-19 Titre : Re-thinking the conservation of carbon, water and soil: a different perspective Type de document : Article Auteurs : Thomas Shaxson Année de publication : 2006 Article en page(s) : p. 9-19 Langues : Anglais (eng) Catégories : [Motbis 2025] carbone [Motbis 2025] perméabilité Note de contenu : Sustaining soil productivity requires continuing actions of soil organisms on organic materials for optimizing of soil porosity and of movements of roots, water and gases in the root-zone. Soil is more quickly formed and self-renewed from the top downwards than only by slow additions from the bottom upwards. Loss of porosity diminishes soil's infiltration capacity and water-holding potential. Factors that provide insufficient organic substrates for soil organisms and that unduly accelerate oxidation of soil organic matter hinder the self-recuperation of soil and facilitate 'Stage-1' loss of carbon from within soil aggregates. They predispose the soil to lose rapidly even more carbon, in particulate form, through 'Stage-2' losses during consequent processes of runoff and erosion. Forms of land use and management are advocated that favor the functioning of soil-inhabiting organisms, including plants, such that carbon's capture in photosynthesis is increased, its usefulness in the soil as a rooting medium is prolonged, and its subsequent immobilization in the process of sequestration ameliorates the rate of increase in carbon dioxide concentration in the global atmosphere. [article] Re-thinking the conservation of carbon, water and soil: a different perspective [Article] / Thomas Shaxson . - 2006 . - p. 9-19. Langues : Anglais (eng) in Agronomy for Sustainable Development * > Vol.26, n°1 [01/01/2006] . - p. 9-19 Catégories : [Motbis 2025] carbone [Motbis 2025] perméabilité Note de contenu : Sustaining soil productivity requires continuing actions of soil organisms on organic materials for optimizing of soil porosity and of movements of roots, water and gases in the root-zone. Soil is more quickly formed and self-renewed from the top downwards than only by slow additions from the bottom upwards. Loss of porosity diminishes soil's infiltration capacity and water-holding potential. Factors that provide insufficient organic substrates for soil organisms and that unduly accelerate oxidation of soil organic matter hinder the self-recuperation of soil and facilitate 'Stage-1' loss of carbon from within soil aggregates. They predispose the soil to lose rapidly even more carbon, in particulate form, through 'Stage-2' losses during consequent processes of runoff and erosion. Forms of land use and management are advocated that favor the functioning of soil-inhabiting organisms, including plants, such that carbon's capture in photosynthesis is increased, its usefulness in the soil as a rooting medium is prolonged, and its subsequent immobilization in the process of sequestration ameliorates the rate of increase in carbon dioxide concentration in the global atmosphere.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
REV-00000178	Vol.26, n°1 - 01/01/2006	Revue	Archives sur place	Documentaires	Disponible

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