Global assessment of agricultural system redesign for sustainable intensification
Global assessment of agricultural system redesign for sustainable intensification
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DOI：
10.1038/s41893-018-0114-0
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发表时间：
2018-08-01
影响因子：
27.6
通讯作者：
Wratten, Steve
中科院分区：
文献类型：
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作者：
Pretty, Jules;Benton, Tim G.;Wratten, Steve
农业系统的可持续集约化为农业和自然资本成果的共同生产提供了协同增效的机会。效率和替代是实现可持续集约化的步骤，但随着生态和经济条件的变化，系统重新设计对于提供最佳结果至关重要。我们通过农场和公顷显示了全球在可持续集约化方面的进展，使用七种可持续集约化子类型：综合虫害管理，保护性农业，综合作物和生物多样性，牧场和饲料，树木，灌溉管理和小型或斑块系统。从47个大规模的可持续集约化项目（每个项目> 10（4）个农场或公顷）中，我们估计有1.63亿个农场（占全球总数的29%）已经越过了重新设计的门槛，在4.53亿公顷的农业用地上实施了可持续集约化形式（占全球总数的9%）。主要挑战包括投资将更多形式的可持续集约化纳入耕作系统，创造农业知识经济，并制定政策措施进一步扩大可持续集约化。我们的结论是，可持续集约化可能正在接近一个转折点，它可能是变革性的。
The sustainable intensification of agricultural systems offers synergistic opportunities for the co-production of agricultural and natural capital outcomes. Efficiency and substitution are steps towards sustainable intensification, but system redesign is essential to deliver optimum outcomes as ecological and economic conditions change. We show global progress towards sustainable intensification by farms and hectares, using seven sustainable intensification sub-types: integrated pest management, conservation agriculture, integrated crop and biodiversity, pasture and forage, trees, irrigation management and small or patch systems. From 47 sustainable intensification initiatives at scale (each > 10(4) farms or hectares), we estimate 163 million farms (29% of all worldwide) have crossed a redesign threshold, practising forms of sustainable intensification on 453 Mha of agricultural land (9% of worldwide total). Key challenges include investment to integrate more forms of sustainable intensification in farming systems, creating agricultural knowledge economies and establishing policy measures to scale sustainable intensification further. We conclude that sustainable intensification may be approaching a tipping point where it could be transformative.