生态农业知识中心

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

Under the framework of the project “Scaling up agroecology to strengthen food security and improving food diversity in the Congo Basin”, the first task is to map agroecology actors and to identified agroecology practices in the Congo Basin. This work covered the mapping of the actors, their respective practices and some...
报告
2022
This new volume published by FAO  tries inspiration from the Conference on Mainstreaming Organic Agriculture in the African Development Agenda held in Lusaka, Zambia in May 2012. It expands on selected research shared during the event and demonstrates that organic management can benefit people, the economy and ecosystems, particularly in...
报告
2013
In February 2020, more than 100 participants from nearly 30 countries gathered together for a week-long global learning exchange on agroecology.  The practitioners work at the intersection of policy, scientific research, grassroots movement-building, and natural farming practices. They were joined by 18 donors, a half-dozen advisors, and other agroecology allies.  The...
论文
2020
Scaling soil health and biologically based landscape restoration is knowledge rather than input limited. The FarmOS system leverages existing global, open-source hardware and software communities to provide tools to all scales and production systems. It is free to download, use and modify. Farmers control their own secure data to choose...
United States of America
创新
2018
A two-day virtual regional consultation titled “Engaging with Academia and Research Institutions (ARIs) to Support Family Farmers and Food System Transformation During and Post COVID-19 Pandemic in Asia” was held by the Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA) and the Asian Farmers’ Association for...
会议文件
2022