循环利用:加强循环利用意味着降低农业生产的经济和环境成本
浪费是一项人为提出的概念—在自然生态系统中并不存在浪费。生态农业方法通过模拟自然生态系统,支持推动在生产系统内进行养分、生物质和水分循环的生物过程,从而提高资源利用效率,并将浪费和污染降至最低。
循环利用可通过多样化并在不同组成部分与活动之间构建协同效应,在农场层面和景观范围内进行。比如,包括根系深植树木的农林复合系统能够捕获一年生作物根系无法吸收的养分。农牧系统通过利用粪便进行堆肥或直接施肥,并将作物残茬和副产品用作家畜饲料,推动了有机质的循环利用。养分循环占所有非供给性生态系统服务经济价值的51%,畜牧业的融入在其中发挥着主要作用。同样,在稻田养鱼系统中,水生动物协助对水稻作物施肥并减少有害生物,降低了对外部肥料或杀虫剂等投入品的需要。
循环利用通过闭合循环和减少浪费提供了多种惠益,降低了对外部资源的依赖,提升了生产者的自主能力,降低了面对市场和气候冲击时的脆弱性。循环利用有机质和副产品为生态农业创新提供了巨大潜力。
Database
This course addressed issues and articulations around local agroecological based food systems, including food resistances, which together with agroecological experiences constitute the responses against agro-industrial crops (genetically modified, monocultures, biofuels, greenhouses, etc.) and food models (large surfaces, junk food, school catering, etc.) that generate enormous inequalities and seriously affect the...
学习
2020
This study presents the conditions to be met for the recovery of food sovereignty in Africa and recommends that to rediscover the integrated approach to agriculture and food systems, there is a need to build resilience and support the strategies of the various actors.
报告
2021
Large, decimated ecosystems can be restored. Bringing large areas back from environmental ruin is possible, and the results are key to stabilizing the earth's climate, eradicating poverty and making sustainable agriculture a reality. Under the guidance of a few people who have knowledge and vision, local uneducated rural poor can...
China
视频
2012
The climate crisis and destructive farming practices are challenging African farmers’ ability to produce enough healthy food. The seasonal rains on which farmers depend now fail to materialise or fall in heavy storms that wash away soils and seeds.
This book published by the Alliance for Food Sovereignty in Africa (AFSA) brings...
Kenya - Senegal - Togo - Uganda - United Republic of Tanzania - Zimbabwe
书籍
2021
Biowatch advocates for agroecology as a proven, multi-faceted approach to creating a sustainable, diverse, just food system that applies ecological principles and methods to farming, while addressing wider environmental, economic, social, cultural, and political dimensions in order to transform the industrialised food system.
South Africa
书籍
2016