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| Research and application of the accounting method of regional livestock and poultry environmental carrying capacity |
| Received:August 16, 2022 |
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| KeyWord:livestock and poultry breeding;environmental carrying capacity;water environmental capacity;environmental quality objective |
| Author Name | Affiliation | E-mail | | PENG Ziwei | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China | | | WU Genyi | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China | wugenyi99@163.com | | HUANG Jie | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China | | | DAI Shiqin | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China | |
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| Abstract: |
| Due to the unreasonable regional layout of livestock and poultry breeding and deficiency of scientific and practical environmental carrying capacity accounting methods, on the basis of the livestock land carrying capacity accounting method, as well as considering the factors of water environmental capacity and economic, and social development, this study built an accounting model of livestock environmental carrying capacity based on crop nutrient demand and multiple factors of the soil and water environment. Furthermore, the model parameter values were confirmed, and the livestock and poultry environmental carrying capacity accounting method was developed. Taking Hunan Province as an example to verify the application of the accounting method, the environmental carrying capacity of livestock and poultry in Hunan Province was calculated as 6 113.16×104 equivalent pigs. After comparison with related research results, it is concluded that this method was superior to the current widely used land carrying capacity accounting method in China, indicating that the method was practical and scientifically sound. Thus, this method is important for scientific and reasonable calculations of livestock and poultry breeding environmental carrying capacity, ensuring coordinated development of animal husbandry and the environment. |
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