巴西牛肉生产的未来展望:林牧系统的作用是什么?

IF 2 3区 农林科学 Q2 AGRONOMY Agroforestry Systems Pub Date : 2024-06-03 DOI:10.1007/s10457-024-01005-7
Katrin Agethen, Rogerio Martins Mauricio, Claus Deblitz, Maria Dolores Izquierdo, Ernesto Reyes, Julian Chará
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引用次数: 0

摘要

在生产条件和市场需求不断变化的背景下,似乎到了重新思考巴西牛肉生产系统的时候了。我们通过比较案例研究分析了三种牛肉生产系统的经济和环境绩效:传统牛肉生产系统(CB),以及两种类型的造林牧业系统:作物-畜牧-林业综合系统(ICLFS)和自然再生系统(NR)。我们发现,虽然 CB 系统的生产成本最低,但只有 ICLFS 和 NR 案例研究能产生长期利润。虽然每公斤活重的温室气体排放量在 ICLFS 中最低,其次是 NR 和 CB,但每公顷的排放量在 NR 中最高,其次是 ICLFS 和 CB。考虑到系统的碳清除量,NR 和潜在的 ICLFS 的固碳量大于释放量。此外,生产牛肉所需的土地在 NR 最低,其次是 ICLFS 和 CB。考虑到 ICLFS 和 NR 产生的额外产出,它们展示了多功能生产系统在未来情景中的潜力,在未来情景中,土地稀缺将使牛肉等土地需求型生产系统面临压力。根据分析的指标,三种生产系统的表现各不相同。它们如何应对未来的挑战取决于所处的位置和具体环境。然而,在所分析的系统中,牛肉生产系统在经济和环境方面的可持续性最差。
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Future perspectives of Brazilian beef production: what is the role of Silvopastoral systems?

Against the backdrop of changing production conditions and market requirements, it seems time has come to rethink Brazil’s beef production systems. We analyse the economic and environmental performance of three beef production systems: classic beef production system (CB), and two types of silvopastoral systems: the integrated crop-livestock-forestry system (ICLFS) and the natural regeneration system (NR) in a comparative case study analysis. We find that, though costs of production are the lowest for CB, only the ICLFS and NR case studies are generating long-term profits. While greenhouse gas emissions per kg live weight added are lowest in ICLFS, followed by NR and CB, per hectare (ha) emissions are highest in NR, followed by ICLFS and CB. Considering the system’s carbon removal, NR and potentially ICLFS are sequestering more than releasing. Additionally, the land required to produce beef is lowest in NR, followed by ICLFS and CB. Considering the additional outputs produced by ICLFS and NR, they showcase the potential of multifunctional production systems for future scenarios, where land scarcity puts land-demanding production systems, such as beef, under pressure. The three production systems perform differently depending on the indicators analysed. How they will reply to future challenges depends on the location and the specific environment. Yet, from the analysed systems, CB is the least sustainable, economically and environmentally.

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来源期刊
Agroforestry Systems
Agroforestry Systems 农林科学-林学
CiteScore
5.30
自引率
9.10%
发文量
78
审稿时长
4.5 months
期刊介绍: Agroforestry Systems is an international scientific journal that publishes results of novel, high impact original research, critical reviews and short communications on any aspect of agroforestry. The journal particularly encourages contributions that demonstrate the role of agroforestry in providing commodity as well non-commodity benefits such as ecosystem services. Papers dealing with both biophysical and socioeconomic aspects are welcome. These include results of investigations of a fundamental or applied nature dealing with integrated systems involving trees and crops and/or livestock. Manuscripts that are purely descriptive in nature or confirmatory in nature of well-established findings, and with limited international scope are discouraged. To be acceptable for publication, the information presented must be relevant to a context wider than the specific location where the study was undertaken, and provide new insight or make a significant contribution to the agroforestry knowledge base
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