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China is expected to use the saline-alkali soil into fertile desulfurization
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Chinese scientists are applying a conditioner to desulfurization waste and saline-based technology model modified alkaline plains of the Yellow River Loop, and if the technology can be large area, Northwest will further increase the granary. Thousands of years, is located in the plains of northwest China's Yellow River Loop has been called the "breadbasket." However, Xu Xing, Vice President of Ningxia University, said that as of the Yellow River irrigation area's largest reserves of arable land resources reserve area, the Yellow River Loop 15 More than 00 million mu of irrigated farmland in more than one third of the existence of different degrees of soil salinization, which seriously restricted the region to improve agricultural production capacity and sustainable agricultural development. Xu Xing also said the Yellow River Loop region is also an important energy and chemical base in China, a large number of coal-fired power plant desulfurization of waste generated on the ecological environment caused by potential contamination threats. In 2007, Ningxia University, Ningxia Academy of Agriculture and Forestry, Tsinghua University, China Agricultural University, Inner Mongolia Agricultural University, supported by the joint declaration of the national science and technology project "Improvement of the Yellow River Loop and desulphurization Saline Waste Utilization key technology research and demonstration. " Project through the Ningxia Hui Autonomous Region Science and Technology Department recently the subject of acceptance. This project is the "Eleventh Five-Year" National Technology Support Program. Yellow Loop project for different types of rational development and utilization of saline to desulfurization waste utilization as the starting point of breakthrough Saline alkaline composition improved the technical bottleneck is not easy, integrated innovation and proposed desulfurization waste alkaline and saline conditioner based integrated technology system and the different types of modified saline improved technology model. Through 4 years of R & D and testing, research group has made improvement of saline land application technique desulfurization waste, water regulation, soil fertility technology, fast 6 key technology and try to establish different types of saline Test demonstration area 601 acres, 26,009 acres of radiation to promote for other parts of China to provide large areas of saline-alkali soil fertility improvement of technical support and demonstration model. The team also developed a saline conditioner formula 5, 12 species of salt-tolerant plants proposed in the desulfurization of waste based on improved cultivation techniques. At present, the technological achievements in Ningsia W. Tai Tan, Hui agricultural areas, Hongsipu 3 different types of saline demonstration area a large area demonstration, the cumulative improvement of 10.1 mu saline. The demonstration area per unit of land area Economic benefits over an average of 35%, the additional annual output value of 550 million yuan; rural per capita net income increased by 30% or more, benefit 100,000 over 350,000 farmers. Improvement in the realization of saline at the same time, ecological management derivatives industry momentum. Demonstration area fostered a "biomass energy plants" and "saline agricultural facilities" features a new industry, and sweet sorghum and sugar beet Based biomass energy plant cultivation has begun to take shape. "Saline agricultural facilities," Control of soil salinization in the northern area of 50 acres of Ningxia saline to promote use of the radiation. According to the second national soil survey statistics, China saline land area of about 35 million hectares, of which 8.7 million hectares of alkaline earth area. Because weather and other reasons, the number is increasing. Improved use of waste alkaline desulfurization technologies promote except in Ningxia, but also radiation to Inner Mongolia, Xinjiang, Qinghai, Gansu, Shaanxi and other provinces (autonomous regions), the area had reached 50 million mu.
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