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
The first generation of the professionalizing Master in Agroecology will be welcomed with the symposium "Directions and Frontiers of Agroecology as a Transdiscipline" promoted by the College of the Southern Border (ECOSUR), the Latin American Scientific Society for Agroecology (SOCLA) and La Via Campesina.
To connect to this virtual inauguration symposium,...
活动
2022
The FAO Africa Gender Team is pleased to invite you to this year's virtual International Women's Day celebration, which will be taking place on 9 March, from 10:00-11:30 AM GMT. The virtual celebration will highlight how peasant and indigenous women are actively promoting healthy food systems through agroecology, regenerative approaches...
Senegal - Uganda - Zambia - Zimbabwe
活动
2022
22 March 2022 | JOIN HERE
The agroecological approach in agricultural production has become more relevant due to the growing demands of society for access to healthy, healthy and sustainable food, as well as the need to promote sustainable food systems that are resilient to climate change and mitigate the impact on the...
Argentina
活动
2022
19 April 2022
Since its launch in 2018, the Scaling up Agroecology Initiative seeks to mobilize dialogue, cooperation and investment within and beyond the United Nations (UN) system, to bring agroecology to scale and achieve multiple sustainable development goals through sustainable agriculture and food systems. Different UN Agencies are progressively supporting...
India - Mexico - Senegal
活动
2022
20 April - 20 May 2022 | Join the virtual discussion HERE
The FAO Family Farming & Agroecology Community of Practice in Africa is implementing a discussion on ''The co-creation, sharing and dissemination of local innovations for healthy soils in Africa'', co-organized by key actors working for the promotion of family...
活动
2022