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Accueil du site → Doctorat → Espagne → 2020 → The ruminant production systems in the Comarca Lagunera, Mexico : environmental impact, productive trends, and mitigation strategies

Universidad de Córdoba (2020)

The ruminant production systems in the Comarca Lagunera, Mexico : environmental impact, productive trends, and mitigation strategies

Navarrete-Molina, Cayetano

Titre : The ruminant production systems in the Comarca Lagunera, Mexico : environmental impact, productive trends, and mitigation strategies

Los sistemas de producción de rumiantes en la Comarca Lagunera, México : impacto ambiental, tendencias productivas y estrategias de mitigación

Auteur : Navarrete-Molina, Cayetano

Université de soutenance : Universidad de Córdoba co tutelle UNIVERSIDAD AUTÓNOMA CHAPINGO

Grade : DOCTOR EN CIENCIAS EN RECURSOS NATURALES Y MEDIO AMBIENTE EN ZONAS ÁRIDAS (UACH-URUZA, Mexico) 2020

Résumé
The world population has increased to almost 8,000 million people, which suggests increases in the demand and consumption of products of animal origin, causing greater pressure on the use of water resources and increases in the emission of greenhouse gases (EGHG). The objective of this research was to quantify the environmental impact (EI) and economic impact (EcI) of the carbon footprint (CP) and water footprint (WP) as indicators of sustainability of ruminant production systems (RPS) during the period 1994-2018. The investigation was carried out in northern Mexico, in the Comarca Lagunera (CL, 102º 22 ’& 104º 47’ W, 24º 22 ’& 26º 23’ N), an arid region with annual averages of rainfall less than 240 mm, although it is very important in livestock production in the country. The quantification of the EI in WP only considered the calculation of the use of blue water (BWF). The CP considered the IPCC methodology for the livestock and agriculture subcategories. The calculation of the economic value (EV) of BWF considered the average international water price, while the CP considered an international average price of the carbon credits. The economic value of RPS (Dairy cattle, Beef cattle and Goats) was determined based on its gross production value (GPV). In 2018, the CL recorded a ruminant inventory of 1,163,046 heads, with 350,280 heads in production, generating 2,503.50 million liters of milk with a total of 676,769 slaughtered heads, and a yield of 83,716 tons of meat. This production of milk and meat represented 99,538 tons of protein. When comparing the annual average of the GPV-RPS of 651.41 M€ (11,754.89 MMXP) regarding the EV-BWF of 11,602.82 M€ (209,377.59 MMXP) added to the EV-CF of 330.71 M€(5,967.79 MMXP) a significant EI and EcI is observed from RPS, especially those generated by the dairy and beef cattle systems, with a negligible impact of the goat system. The GPVRPS represented 5.46% of the EV of the WF plus the CF [11,933.53 M€ (215.345.38 MMXP)]. Therefore, it is fundamental to delineate and adopt mitigation strategies in the management of RPS with respect to water use and EGHG. These strategies must considerer the characteristics of each species of ruminant and they will be essential to achieve the sustainability not only of the RPS, but also the ecological, economic and social viability of the CL itself

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