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

The Centre for Agroecology, Water and Resilience (CAWR) is one of Coventry University’s Flagship Research Centres and the largest centre in the world doing transdisciplinary research on the links between agroecology and sustainable food systems, water management, and community and socio-ecological resilience. CAWR brings together a large and growing international...
United Kingdom of Great Britain and Northern Ireland
学习
Vegetables are commonly produced with high inputs of pesticides and fertilisers to boost production and meet cosmetic market standards. Yet, reports on the relationships between agrochemical inputs and crop productivity are scattered and an overview is missing. This article provides an assessment of the relationship between pesticide and nutrient inputs...
Uruguay
杂志文章
2022
This second Biodiversity Advantage report of the International Fund for Agricultural Development (IFAD) showcases five projects which highlight the integral importance of biodiversity in agriculture. These projects show how promoting biodiversity improves human and ecosystem health, and the roles of small-scale agricultural producers in preserving and restoring biodiversity and schemes that reward them for their stewardship...
Bangladesh - Brazil - Burkina Faso - Kenya - Türkiye
报告
2021
This document presents the contribution of the Service d'Appui aux Initiatives Locales de Développement (SAILD-NGO) to the food security and nutritional diversification of targeted families in 21 villages in the Far North and East regions of Cameroon. The publication is funded by Bread for the World within the project "Strengthening...
Cameroon
个案研究
2021
The Malaysian Agroecology Society for Sustainable Resource Intensification (SRI-Mas), the Universiti Putra Malaysia (UPM), and the Malaysian Food Security and Sovereignty Forum (FKMM) are pleased to invite you to the International Webinar Series on Agroecology & Community on 21 December 2021 at 8:00 PM 𝐌𝐚𝐥𝐚𝐲𝐬𝐢𝐚 𝐓𝐢𝐦𝐞(𝐔𝐓𝐂 +𝟖).The Webinar Series aims...
活动
2021