Abstract：As a new subject emerging with the green revolution, agroecology focuses on the total relationships between agricultural organisms and both their organic and inorganic environments, which is playing a key role in global sustainable development. From molecular to landscape scale, this paper reviews the achievements in non-point source pollution, highefficient use of agricultural resource, establishment of agro-ecosystem, agricultural landscape and its ecosystem service, and impact of global climate change on agriculture. A game-changing innovation of sustainable food production system and food chain management for human health are becoming the research hotspots in the future agroecology.
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