Greenhouse gases and water and soil pollutants emitted from animal husbandry in Urzouyeih county of Kerman province

Greenhouse gas (GHG) emissions are a significant environmental crisis that has become a major concern in many countries. A primary contributor to GHG emissions is animal farming and meat production. The purpose of this study was to estimate GHG emissions, as well as water and soil pollutant emissions, resulting from these activities in Urzouyeih County using a linear optimization model. Based on the results, solid manure (feces) from each cattle animal emits ۳۹۲.۸۲ kg/year of soil and water pollutants, with chemical oxygen being the primary component of these emissions. In contrast, the pollutants emitted from the solid manure of sheep and goats are ۱۱.۰۶ kg and ۹.۹۳ kg, respectively, with total nitrogen being the main contributor. Furthermore, ۹۹.۵۵ kg, ۸.۳۸ kg, and ۷.۵۶ kg of pollutants enter water and soil from the liquid manure (urine) of cattle, sheep, and goats, respectively. Potassium (Kalium) was found to be the primary pollutant emitted from the liquid manure of all three animals. Additionally, methane emission from manure management and enteric fermentation for all three livestock in the area is ۱.۵۶ × ۱۰۶ kg. Goats, due to their high population, emit ۷۳۸,۶۶۹ kg of methane. Nitrous oxide (N۲O) emissions resulting from animal farming in the area were estimated at ۸۳,۸۴۳ kg. Also, the carbon cost imposed on the region was investigated. This research can be precious for environmental decision-makers and policymakers.

کلیدواژه ها:

Animal farming ، Cost of carbon ، emissions ، Greenhouse gas ، Pollutant