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Assessing the Environmental Impact of Extensive beef production in Grazing Lands of Argentina

PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY 2024年第8期93卷 1943-1962页

作者： Viglizzo, Ernesto Ricard, Florencia Consejo Nacl Invest Cient & Tecn Inst Ciencias Tierra & Ambientales La Pampa RA-6300 Santa Rosa La Pampa Argentina Univ Austral RA-2000 Rosario Santa Fe Argentina Secretaria Ambiente & Cambio Climat Gobierno La Pa RA-6300 Santa Rosa La Pampa Argentina Univ Nacl La Pampa Fac Ciencias Exactas & Nat RA-6300 Santa Rosa La Pampa Argentina

Because of environmental constraints, beef cattle was for more than a century the only viable farming option in the extensive semiarid and subhumid lands of Argentina and the main source of nutrients for humans as well. However, a growing concern and criticism have risen today about its possible negative impact on the climate and the environment. These worries tend to affect current public opinions, national policies, and international trade. Based on 40 beef cattle farms scattered across different semiarid and subhumid regions of Argentina, here we evaluated the impact of extensive cattle production on carbon, water, and nutrient pollution. Life-Cycle Assessment (LCA) and Land-Based Assessment (LBA) were the two approaches we used here to compare the environmental impact of beef production. While the environmental footprint (EF) resulting from LCA expresses the impact per unit of food, the environmental balance (EB), derived from LBA, aims at quantifying the impact per unit of land. As such, the EB considers both negative and positive impacts on the farm as an integrated system. Following standardized procedures, we evaluated EF and EB up to the farm gate, leaving aside delocalized post-farm impacts such as those of processing, packaging, and transportation that occur beyond the farm gate. In agreement with previous evidence, our results show that the EF tends to decrease as per-head production increases. Correlation coef fi cients and statistical signi fi cance were the following for carbon (R = - 0.574; p beef production increases. Correlations were the following for carbon emissions (CE: R = 0.955; p < 0.01), water consumption (WC: R = 0.822; p < 0.01), nitrogen excretion (NE: R = 0.948; p < 0.01) and phosphorus excretion (PE: R = 0.945; p < 0.01). What our

关键词： beef production extensive cattle raising grazing conditions environmental impact assessment WATER FOOTPRINT LIVESTOCK production CARBON-BALANCE EMISSIONS AGRICULTURE FOOD

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The Modeling of production and Economic Indicators in Suckler Cows Herds

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Journal of Agricultural Science and Technology(A) 2014年第1期4卷 93-101页

作者： Andrej Koleno Jan fluba Zuzana Krupova Monika Michalickova Ondrej Debreceni Department of Quality Control and Quality Management RAJO a.s. Studen6 35 Bratislava 823 55 Slovak Republic Institute of Animal Breeding and Product Quality Animal Production Research Centre Nitra Hlohoveck~ 2 Lu2ianky 951 41Slovak Republic Department of Genetics and Breeding of Farm Animals Institute of Animal Science Praha Uhrineves Pratelstvi 815 104 00Czech Republic Faculty of Agrobiology and Food Resources Slovak University of Agriculture in Nitra Tr. A. Hlinku 2 Nitra 949 76 SlovakRepublic

The aim of this study was to analyse the most important factors affecting the profitability of suckler cows herds in Slovakia in 2010. The economic models were used to verify whether the suckler cows farming is profitable without subsidies in the current production conditions in Slovakia as well as their optimal location in the agricultural natural conditions of Slovakia from the perspective of economic efficiency. The breeding of cattle, mainly for the beef meat production, has long been unprofitable as it is apparent also from the analysis of several studies. In the model without inclusion of subsidies, it was calculated that the suckler cows farming is unprofitable at the current production parameters and realization prices of calves. The losses per cow and year were ranged from -240ε in the model by using a combination of the maximum threshold values of input parameters to -818ε by using a combination of the minimum threshold values of the input parameters. In the models including of subsidies amount of loss and/or profit per cow and year varied depending on the input parameters mainly on natality, average daily gain, the realization price of calves and the level of subsidies provided to breeder as well. The economic results are ranged from -277ε to 724ε per cow and year. From economical as well as production point of view, the most appropriate agricultural natural regions for suckler cows farming in Slovakia are upland and highland regions.

关键词： Economics beef production suckler cows subsidies profit.

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