Agricultural Ecology (Agroecology农业生态学) Agroecology is a branch of ecology in agriculture It studies the structure,functions,regulation,and management of agricultural ecosystems.The aim is to develop sustainable agriculture. ·农业生态学是用生态学和系统论的原理和方法，将农 业生物与其自然环境作为一个整体，研究其中的相互 作用、协同演变，以及社会经济环境对其调节控制规 律，促进农业全面持续发展的学科
• Agroecology is a branch of ecology in agriculture. It studies the structure, functions, regulation, and management of agricultural ecosystems. The aim is to develop sustainable agriculture. • 农业生态学是用生态学和系统论的原理和方法,将农 业生物与其自然环境作为一个整体,研究其中的相互 作用、协同演变,以及社会经济环境对其调节控制规 律,促进农业全面持续发展的学科。 Agricultural Ecology Agricultural Ecology （Agroecology Agroecology 农业生态学)
2012 China No.1 Document 1.How to feed the increasing world population? 2.How to produce safe and nutrient food? 3.How to maintain the environmental security and sustainability?
2012 China No.1 Document 2012 China No.1 Document 1. How to feed the increasing world population? 2. How to produce safe and nutrient food? 3. How to maintain the environmental security and sustainability?
Sustainable Agriculture ·“.an integrated system of plant and animal production practices.that will >satisfy human food and fiber needs >enhance environmental quality >make the most efficient use of >nonrenewable resources >sustain economic viability >enhance quality of life." 1990:Farm日用
Sustainable Agriculture Sustainable Agriculture • “.an integrated system of plant and animal production practices .that will ¾satisfy human food and fiber needs ¾enhance environmental quality ¾make the most efficient use of ¾nonrenewable resources ¾sustain economic viability ¾enhance quality of life.” 1990 Farm Bill
Agriculturakbooscom 农（种植业） 林业 Iteractions between agricuitural components 畜牧业 水产业
Agricultural Ecosystem Agricultural Ecosystem Interactions between agricultural components Interactions between agricultural components 农（种植业） 畜牧业 水产业 林业
An agricultural system functions with all its inputs and outputs Inputs include all materials such as fertilizer, irrigation,pesticides etc Outputs are the gains from the system in any form such as grains,leaves,stems,roots etc
An agricultural system functions An agricultural system functions with all its inputs and outputs with all its inputs and outputs Inputs include all materials such as fertilizer, irrigation, pesticides etc Outputs are the gains from the system in any form such as grains, leaves, stems, roots etc