效率:创新型生态农业方法用更少的外部资源带来更高的产出
提升资源利用效率是生态农业系统的一项新属性,通过仔细规划和管理多样性,在系统各构成部分之间形成协同效应。比如,效率方面的一项关键挑战在于全球农田中施用的氮肥仅有不到50%转化为收获产品,其余部分损失在环境中,导致严重的环境问题。
生态农业系统改善对自然资源,尤其是丰富和免费资源的利用,如太阳辐射、大气中的碳和氮元素等。通过促进生物过程以及生物质、营养素和水的循环使用,生产者能够用更少的外部资源,降低成本并减轻资源利用所产生的负面环境影响。最终,减少对外部资源的依赖能够通过提升生产者的自主能力和应对自然或经济冲击的抵御力来赋予其权能。
衡量综合性系统效率的一种方法是土地当量比。土地当量比对比了两种或以上品种(如作物、林木、家畜)共同种养时的单产以及通过单作实现的单产水平。综合性系统往往展示出更高的土地当量比。
因此,生态农业通过必要的生物、社会经济和机构多样性,以及与时空的匹配来推动农业系统,支持提高效率。
Database
'Sembrando Capacidades' - a trilateral South-South cooperation project between Brazil, Colombia and FAO is coming to an end after two years of work focused on strengthening instruments and policies for a peasant, family, and community agriculture in Colombia through knowledge management and the exchange of experiences between the two countries in four areas:...
Colombia
项目
2021
The seminar entitled “Agroecology for organic farming'' launched by the Italian center of the Italian Association of Agroecology (AIDA) will take place on Friday 15 November in the Aula Magna of the School of Agriculture of the University of Florence.
A wide range of participants from different sector as the University of Florence,...
Italy
活动
2019
The main aim of the conference is to engage with key policy makers and stakeholders, including from the government at central and local levels, parliament, development partners, civil society, private sector, academia and media, to exhibit and exchange best cases on how EOA is at the core of sustainable development...
United Republic of Tanzania
活动
2019
The 7th edition of the Forum Origin, Diversity and Territories – ODT 2019 proposes to explore and put into perspective the theme of agroecology: Multiple Transitions of Territories. The ODT Forum is a unique learning experience, which will be held in 2019 between 4 and 6 December in Lausanne, in...
活动
2019
Agroecology incorporates a more environmentally linked and more socially sensitive approach to agriculture, focused not only on production but also on the ecological sustainability of the production system. Regarding classical agronomy, agroecology introduces key elements such as the ecological approach and the concern for the environment and society.
This cycle of...
Spain
活动
2020