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《农业科学与工程前沿(英文)》 2021年 第8卷 第1期
• Current intensification trends in the Rio de la Plata need urgent re-direction.
•Integrated crop-livestock systems reconcile food production with ecosystem services.
•Case studies validate recoupling as a sustainable way to ecological intensification.
The Rio de la Plata region comprises central Argentina, Uruguay, and southern Brazil. Modern agriculture developed around 1900 with recent decades being characterized by the advance of cropping areas over native grasslands. Highly specialized agriculture has decoupled crop and livestock production but has succeeded in intensifying yields. However, significant losses of ecosystem services have been reported. Thus, questions have been raised on the sustainability of this pathway. A glance at world regions that have experienced similar trends suggests that an urgent course correction is needed. A major concern has been the lack of diversity in regions with highly specialized agriculture, promoting renewed interest in integrated crop-livestock systems (ICLS), not only because ICLS are more diverse than specialized systems, but also because they are rare examples of reconciliation between agroecosystem intensification and environmental quality. Consequently, this paper discusses alternatives to redesign multifunctional landscapes based on ICLS. Recent data provide evidence that recoupling crop and animal production increases the resilience of nutrient cycling functions and economic indicators to external stressors, enabling these systems to face climate-market uncertainty and reconcile food production with the provision of diverse ecosystem services. Finally, these concepts are exemplified in case studies where this perspective has been successfully applied.
Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José Alfredo TERRA, Priscila PINTO, Amanda POSSELT MARTINS, Sebastian VILLARINO, Júlio Kuhn DA TRINDADE, Pedro Arthur DE ALBUQUERQUE NUNES, Gervasio PIÑEIRO
《农业科学与工程前沿(英文)》 2021年 第8卷 第1期 页码 97-110 doi: 10.15302/J-FASE-2020380
关键词: grazing integrated crop-livestock systems mixed crops-livestock Pampa
Strategies to reduce nutrient pollution from manure management in China
David R. CHADWICK, John R. WILLIAMS, Yuelai LU, Lin MA, Zhaohai BAI, Yong HOU, Xinping CHEN, Thomas H. MISSELBROOK
《农业科学与工程前沿(英文)》 2020年 第7卷 第1期 页码 45-55 doi: 10.15302/J-FASE-2019293
As the demand for livestock products continues to increase in China, so too does the challenge of managing increasing quantities of manure. Urgent action is needed to control point source (housing, storage and processing) and diffuse (field application) pollution and improve the utilization of manure nutrients and organic matter. Here, we review strategies to improve management at each stage of the manure management chain and at different scales. Many strategies require infrastructure investment, e.g., for containment of all manure fractions. Engineering solutions are needed to develop advanced composting systems with lower environmental footprints and design more efficient nutrient stripping technologies. At the field-scale, there is an urgent need to develop a manure nutrient recommendation system that accounts for the range of manure types, cropping systems, soils and climates throughout China. At the regional scale, coordinated planning is necessary to promote recoupling of livestock and cropping systems, and reduce nutrient accumulation in regions with little available landbank, while minimizing the risk of pollution swapping from one region to another. A range of stakeholders are needed to support the step change and innovation required to improve manure management, reduce reliance on inorganic fertilizers, and generate new business opportunities.
关键词: cropping farms livestock production manure management chain recoupling nutrient loss
标题 作者 时间 类型 操作
LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION OR RECOUPLING
期刊论文
LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION OR RECOUPLING
Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José Alfredo TERRA, Priscila PINTO, Amanda POSSELT MARTINS, Sebastian VILLARINO, Júlio Kuhn DA TRINDADE, Pedro Arthur DE ALBUQUERQUE NUNES, Gervasio PIÑEIRO
期刊论文