.:: Lao Knowledge Base on Conservation Agriculture ::.
Biodiversity, physical and chemical characterization
- Soil Biological Activity (0/7)
- Soil Carbon Sequestration (0/21)
A Handbook of Tropical Soil Biology
Soils worldwide are under threat. With the human population steaming ahead to an estimated 9 billion by 2050, how can agricultural intensification take place without increasing the pressure on this precious resource? Based on a decade of painstaking research, Tropical Soil Biology is the first comprehensive guide for assessing and managing the potential impacts of agriculture on below-ground biodiversity. A result of systematic sampling in benchmark sites in Brazil, West and East Africa, Mexico, India, and Indonesia by some of the world's leading soil experts, it characterizes soil biodiversity in a range of environments, covering everything from the largest invertebrates to bacteria. Co-written by TSBF's Jeroen Huising, this in-depth guide aims to "provide internationally accepted standards for the inventory of below-ground communities, including sampling and characterization of land use in the humid tropics."
Biodiversity conservation in tropical agroecosystems: a... Featured
It is almost certainly the case that many populations have always existed as metapopulations, leading to the conclusion that local extinctions are common and normally balanced by migrations. This conclusion has major consequences for biodiversity conservation in fragmented tropical forests and the agricultural matrices in which they are embedded. Here we make the argument that the conservation paradigm that focuses on setting aside pristine forests while ignoring the agricultural landscape is a failed strategy in light of what is now conventional wisdom in ecology. Given the fragmented nature of most tropical ecosystems, agricultural landscapes should be an essential component of any conservation strategy. We review the literature on biodiversity in tropical agricultural landscapes and present evidence that many tropical agricultural systems have high levels of biodiversity (planned and associated). These systems represent, not only habitat for biodiversity, but also a high-quality matrix that permits the ...
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Un dossier du semis direct : systèmes de culture et dy... Featured
L'histoire agronomique qui est présentée dans ce document, raconte la construction d'une révolution technologique à la portée aussi bien des grandes agricultures modernes mécanisées, engagées dans la mondialisation, que des petites agricultures familiales, même les plus deshéritées. C'est l'histoire des techniques de Semis Direct, ou comment passer des systèmes destructeurs de la ressource sol, hérités du transfert Nord-Sud de technologies, solidement ancrées dans les pratiques traditionnelles, à des systèmes de gestion durable qui permettent de préserver totalement l'environnement et d'améliorer la capacité de production du patrimoine sol, à court, moyen et long termes, avec beaucoup moins de travail à l'hectare, une grande simplification des travaux agricoles, tout en ayant une flexibilité accrue dans leur exécution et une bien moindre pénibilité. Cette histoire agronomique est d'abord celle d'une méthodologie d'intervention de la Recherche, qui agit pour et avec les agriculte ...
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