水泡粪养猪——节水(国外英文资料).docVIP

水泡粪养猪——节水(国外英文资料)How to solve the contradiction between livestock development and environmental pollution? Some pig farms to follow the development of circular economy, low carbon economy, ecological agriculture, and overall development strategy, resource comprehensive utilization technology to transform traditional blister dung, the returning of aquaculture waste effectively use of pig out, formed the cultivated and combining with the ecological circulation pattern.The problem of pollution restricts pig farmingIn 2012, Chinas pork production reached 53.35 million tons, and more than 60% of the pigs were supplied by large-scale pig farms. It is easy to control the production of pig farms, good results and quality safety, but it is a great pressure on the rural ecological environment. A total of 30,000 tons to 40 thousand tons of sewage per year, and if it is not treated with direct discharge, it will cause greater pollution to the water and soil. At the same time, due to regional differences, the uneven distribution of space has led to the stress of more livestock breeding in sichuan, guangxi and henan.In order to reduce the pollution reduction task and reduce environmental pressure, some local governments, especially in developed coastal areas, tend to adopt the methods of restricting and restricting the food. In 2007, dongguan city of guangdong province issued a ban on pigs. In March 2009, fujian province issued a restrictions on the pig industry in the jiulongjiang river basin, the second largest river in the province. In 2012, the city of chongqing will be designated as a forbidden zone in areas such as the zone and the water and drinking water source protection zone, which will be relocated and closed for more than 2, 000 livestock farms.On the one hand, to make Chinese people eat pork, ensure the supply of live pigs, on the one hand, want to let people breathe the fresh air, have clean drinking water, how to coordinate to the contradiction? The ban on pigs can