Research On The Treatment Of Pollution Of Livestock And Poultry Breeding Industry In Chengdu

Along with the raising of people's living level, livestock and poultry products demands increase continuously, Especially the implement of the city "the project of basket for groceries", livestock and poultry breeding industry got a fast development, the production scale extends continuously, breeding industry become more and more intensive, the environment problems that the livestock and poultry breeding industry bring are also more outstanding and have become the main sources of the country surface pollution currently. And along with the excessive usage of chemical fertilizer and pesticide, the byproduct of breeding industry could not be used effectively. Such not only results in the soil's hardening, ecology's destroying, the descending of agricultural product quality, but also results in the direct threatening to the human's health with the incessant increase of environment troubles which are brought by the the agriculture produces.In the agriculture system, the planting sub-system and the breeding sub-system are the two big pillar of mankind's foods produce system. The planting sub- system is the primacy produce, and livestock husbandry sub- system is the second produce and enslaved to the planting sub-system, the grass and feed which are from planting provide the material foundation for the development of the livestock and poutrly breeding industry, the dejecta which are from livestock and poutrly breeding industry also provide necessary nutrition to planting.The combination of planting and breeding, which is based on circulation...