Department of Animal Production and Food Science, School of Agricultural Engineering, University of Extremadura, Avda. Adolfo Suarez, s/n, 06007 Badajoz, Spain.
Department of Accounting and Finance, School of Business, Finance and Tourism, University of Extremadura, Avda. de la Universidad s/n. 10071 Cáceres, Spain.
Sci Total Environ. 2021 Jan 10;751:141675. doi: 10.1016/j.scitotenv.2020.141675. Epub 2020 Aug 16.
The current livestock farm production model is being questioned due to its excessive use of resources and impacts on the environment, and it has played a major role in climate change due to the excessive level of greenhouse gas (GHG) emissions. A valid tool in the reduction of such emissions is the imposition of a tax on CO emissions that can act as an economic and financial instrument. Additionally, livestock production based on grazing animals is proposed as a more sustainable model that involves improved environmental practices and provides society with various ecosystem services, including carbon sequestration. The main purpose of this paper is to estimate the maximum price per tonne of CO equivalent (eq) that could be borne by the various models of organic livestock farms in the dehesas and rangelands of southwestern Spain. With this purpose in mind, we have made a scenario-based estimation of the environmental-economic balance in three different scenarios considering farm emissions and CO sequestration levels. The results show that the maximum price that farms can bear is within a range of € 0.20 to € 792/tn of CO eq depending on the scenario analysed and the production model. In the cases in which carbon sequestration balances GHG emissions, the implementation of carbon pricing implies additional economic income for farm accounts.
由于资源过度利用和对环境的影响，当前的畜牧业生产模式受到了质疑，并且由于温室气体（GHG）排放过量，它在气候变化中发挥了重要作用。对 CO 排放征税是减少此类排放的有效工具，可以作为一种经济和金融手段。此外，基于放牧动物的畜牧业生产被提议作为一种更可持续的模式，它涉及改进环境做法，并为社会提供各种生态系统服务，包括碳固存。本文的主要目的是估算西班牙西南部的天然牧地和牧场的有机畜牧业农场的各种模式可以承受的每吨 CO 当量（eq）的最高价格。考虑到农场排放和 CO 固存水平，我们基于情景对三种不同情景下的环境-经济平衡进行了估算。结果表明，根据所分析的情景和生产模式，农场可以承受的最高价格在 0.20 欧元到 792 欧元/吨 CO eq 之间。在碳固存平衡 GHG 排放的情况下，碳定价的实施意味着农场账户的额外经济收入。
