Temporal And Spatial Changing Of Soil Fertility Quality And Sustainable Utilization In Shouguang

Taking Sustainable Development as a guide, land resource science, soil science, soil agricultural chemistry and plant nutrition science as the theoretical basis, based on the survey of previous soil fertility factors, the author made study of the space-time evolution and drivers of the 30 years Shouguang City soil resources fertility quality, and made clear of the space-time evolution feature and its driving factors of Shouguang City soil resources fertility quality, and expound soil resources sustainable utilization.Study found that for 30 years, great changes have taken place in the quality of soil fertility in Shouguang City, performanced in time, the improvement of overall quality and morbidity coexist; performanced on space, different land use patterns is very uneven in the region. Due to the improper use of management, prominent problems in the soil are crippled, and a serious challenge is posed to the sustainable use.1) The quality of soil fertility in Shouguang City has great variations in time and space, and the overall quality of fertility improves but local is uneven, soil obstacle is outstanding. The overall quality of soil fertility is high in city, but it is inequalities in local. There also exist unsustainable factors. Soil salinization caused by improper use of fertilization, pollution, and soil nutrient imbalances sustainable use impairment as a bottleneck. Use patterns affect soil fertility. Fertility factors in the use of different methods vary, but they tend to be higher than other vegetable use, the soil impairment caused serious problems.2) It is found that there are main five factors causing the driving forces affecting the variation of the quality of soil fertility in Shouguang City: climate, topography, policy factors, human factors and technology factors.3) To achieve the sustainable use of soil resources in Shouguang City, according to the different methods of using, the author established fertility quality standards and strengthened monitoring and prediction warning. Fertilizer should be advocated scientific, and we should tell the farmers the scientific management and technological knowledge of fertilizer. We should take measures to increase organic fertilizer, promote the medication, precision fertilizer, bio-fertilizer, as well as fertilizer and other advanced technologies. We should also have to take effective measures to prevent soil obstacle.