Study On Variation Chracteristics Of Soil Salinization In The Shan Shan Oasis Of Xin Jiang

Soil salinization is due to strong evaporation make water of salt accumulation in surface formation ofsaline-alkali soil and slow deterioration process. In land resource shorts increasingly today, salinizationland as potential land resource is paid great attention by governments, and actively carry out a lot of theland salinization process, mechanism, control and reasonable utilization and other related research, aims tosaline land improvement and utilization can be further improved. Saline-alkali soil improvement is acomplex and arduous work, even in today’s highly developed science and technology people are constantlyengaged in the exploration and research. Soil salinization is one of the world’s on Arid and semi arid areaoasis agriculture sustainable development has important effect, and the stability of oasis ecosystem pose agreat threat to. Therefore, a correct evaluation and prevention of soil salinization in arid area oasis topromote agricultural production and regional sustainable development has important realistic significance.This paper taking Xinjiang oasis in Shanshan as the object of study,51samples were collected153samplesof soil, the chemical element analysis method, the soil water soluble salt, pH value, conductivity, organicmatter content and other indexes were measured, and using Excel2003and SPSS13.0software on theseindices were statistically analyzed, put forward soil improvement measures. The main conclusions are:1the soil pH value for an average of7.78. According to the grading criteria of neutrality, acidity, the rangeof variation is small. The total salt content in different depth in the order of0~10cm>10~30cm>30~50cm, salt accumulation in surface soil salt ions strongly, the content changes also appear the same rule.Soil salt chloride sulfate kind give priority to. The ion content and spatial variation significantly, the studyarea of different land use types are compared with each other, total salt content with a small to large orderof vineyards, farmland, ecotone, unused land and saline meadow. In addition to HCO3-II, each of the othersalt ions and soil total salt content in between strong positive correlation, the correlation coefficient is morethan0.7, and have reached the0.01level of significance, especially Cl, SO4, Ka+Na and total salt contentcorrelation was significant. To further illustrate, soil play a controlling role of the anion is sulfate ions andchloride ions, Na+and K+cation is. Study of soil agricultural production activities on soil salinizationeffects of natural factors and human factors. Natural factors including climate, hydrology and study area.Human is the main factor of soil reclamation of forest land on irrigation, soil, influencing the evolution ofhuman activities caused soil degeneration, according to the analysis of the structure, put forward a series ofCountermeasures of soil salinization prevention measures.