Research On The Carrying Capacity And Potential Zoning Of Farm Livestock And Poultry In China From The Perspective Of Tourism Population Flow

With the vigorous development of livestock and poultry scale,untreated livestock manure and waste discharged lead to a series of serious land pollution and environmental problems.It damages the development of rural tourism industry and even threatens human security.It is necessary to study it.Previous studies on the carrying capacity of land,livestock and poultry mostly focused on the concept of " planting and breeding balance ",the accounting indicators in the relevant documents released by the ministry of agriculture in 2018 are also based on this idea.On this basis,this paper included the influence of regional population demand for livestock products into the research system,aiming to form a research system of "plant-farm-consumption",and then calculated the bearing capacity of regional livestock and poultry manure soil.When calculating the consumption of livestock products of regional population,the influence of tourism population disturbance is added to the research scope to preliminarily explore the impact of tourism demand generated by tourism population on the carrying capacity of regional land livestock and poultry manure.According to this,it is necessary to judge whether the regional livestock and poultry production management plan should be adjusted according to the influence of tourism population.In order to provide theoretical guidance and practical reference for the future development of regional livestock and poultry breeding in China.In this paper,the carrying capacity and potential of farm livestock and poultry in China were studied by region based on the basic data of planting consumption,breeding output and market demand.The conclusions are as follows:Firstly,the carrying capacity of livestock and poultry manure land in China is declining as a whole.From the initial relative equilibrium to the notable distribution pattern of the northeast-southwest inclination,the potential of land carrying capacity is gradually decreasing from northeast to southwest;Under the three scenarios of 35%,45% and 55% of nutrients supplied by fertilizer,the carrying capacity of land,livestock and poultry changed significantly.When the proportion of nutrients supplied by fertilizer was controlled at the lowest level,the land,livestock and poultry in nearly 22 provinces were overloaded and the potential was extremely scarce,and the carrying potential coefficient of livestock and poultry manure land is below 0.3.Secondly,the supply and demand markets of livestock products in China under the disturbance of tourism population show a significant growth trend,traditional agricultural provinces have always held an advantage in the supply and demand of livestock products.At present,the consumption of tourism population occupies a relatively small proportion in the overall demand of regional livestock products,the trend continues to rise significantly and will continue for quite a long time.Thirdly,from the perspective of farmland consumption and market demand,it is found that the potential of livestock and poultry breeding in China presents a balanced development trend.The supply and demand potential of animal products market presents the distribution pattern of high east and low west,roughly in line with the dividing line between livestock and farming.The regional livestock and poultry breeding potential is divided into four different types,which are restricted allocation area,restricted adjustment area,guiding control area and guiding encouragement area respectively,so as to further adjust and optimize the agricultural space.