生物多样性
铅(地质)
农业
生产(经济)
农业生产力
农林复合经营
环境科学
生态学
自然资源经济学
环境资源管理
生物
经济
古生物学
宏观经济学
作者
Alfred Burian,Claire Kremen,James Shyan-Tau Wu,Michael Beckmann,Mark T. Bulling,Lucas A. Garibaldi,Tamás Krisztin,Zia Mehrabi,Navin Ramankutty,Ralf Seppelt
标识
DOI:10.1038/s41559-024-02349-0
摘要
Abstract Intensive agriculture with high reliance on pesticides and fertilizers constitutes a major strategy for ‘feeding the world’. However, such conventional intensification is linked to diminishing returns and can result in ‘intensification traps’—production declines triggered by the negative feedback of biodiversity loss at high input levels. Here we developed a novel framework that accounts for biodiversity feedback on crop yields to evaluate the risk and magnitude of intensification traps. Simulations grounded in systematic literature reviews showed that intensification traps emerge in most landscape types, but to a lesser extent in major cereal production systems. Furthermore, small reductions in maximal production (5–10%) could be frequently transmitted into substantial biodiversity gains, resulting in small-loss large-gain trade-offs prevailing across landscape types. However, sensitivity analyses revealed a strong context dependence of trap emergence, inducing substantial uncertainty in the identification of optimal management at the field scale. Hence, we recommend the development of case-specific safety margins for intensification preventing double losses in biodiversity and food security associated with intensification traps.
科研通智能强力驱动
Strongly Powered by AbleSci AI