生态农业知识中心

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

The Iranian food system faces several challenges, threatening the food security of the inhabitants and contributing to the depletion of resources: international economic sanctions leading to inflation and unprecedented price peak, scarcity of water resources and intensive and non-adapted cultural practices. Some initiatives emerge, but remain isolated. However, it is...
Iran (Islamic Republic of)
视频
2019
The agroecological transition implies rethinking the way farmers are supported in their changes in practices. Farmer Field Schools are an effective mechanism in this respect since they build farmers’ capacity to experiment, to produce knowledge and to innovate independently. However, it is essential that these advisory services are correctly implemented,...
政策简报
2022
From 30 April to 5 May 2022 Schola Campesina welcomed the meeting of the Community of practice on Agroecology in the Eastern Europe and Central Asia region. Farmers’ organisations and networks, researchers and activists from 15 different countries gathered in Italy, in Bio Bagnolese and Casale Loreto at farms members...
论文
2022
The short film “What is Agroecology” won the Global Youth Video Contest on Climate Change - TVEBioMovies 2019, co-organized by the GEF-UNDP Small Grants Programme, and the secretariats of the UN Framework Convention on Climate Change, the UN Convention to Combat Desertification, and the Convention on Biological Diversity. The film...
Brazil
视频
2019
Crop losses from pests threaten global food security and safety. In the last six decades, pest control using chemical pesticides has resulted in important yield gains per unit area, worldwide. However, the long-term sustainability of chemical pest control has been increasingly thrown into doubt due to the negative impact on...
杂志文章