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

  IFOAM EU is an independent regional group within the IFOAM Organics International that contributes to shaping and implementing Community agricultural, environmental, health and consumer policies and regulation in a number of ways. In addition, advocates for the development and integrity of European organic food and farming and fight for the adoption of...
Romania
活动
2019
The workshop was hosted by MaeJo University in Chiang Mai (Thailand) on 26-27 June attended by representatives of 11 Universities from 8 different countries of ASEAN but also UNESCO and SEARCA. The workshop has to be seen as a stepping stone towards developing a regional project addressing Agroecology and Higher...
Thailand
活动
2019
The International Forum Relevant Territories for Sustainable Food Systems, will take place from 17 to 21 July 2019, in Portugal, in Idanha-a-Nova, is a political response capable of territorial level in the The Community of Portuguese Language Countries and in other regions. The Forum will be a plural space that will house...
Portugal
活动
2019
The Asian Agriculture Summit & Exhibition (AASE) will contribute to the cause of agricultural intervention and sustainable growth where youths will be at the forefront of change in the local communities and globally.  The goal of the Summit is to promote sustainable agro-economy through exchanging knowledge and experiences of youth agro-entrepreneurs,...
Nepal
活动
2019
The objebtive of the event is to share information and practices on challenges and opportunities on Agroecology in Central Asia countries. Expected outputs:• Awareness raised on the multiples benefits agroecology can provide in Central Asia countries• Knowledge and practices on agroecology among the stakeholders shared• Priority for the agenda in the...
活动
2019