Study Of Relationship Between The Soil-salinization And The Change Of Groundwater Environment In Yutian Oasis

Saline-alkali soil has already become a global environmental problem faced together in whole world at present. China is one of countries which are affected seriously, where the question of the soil salinization is still extremely prominent.the soil salinization is comprehensively concerned by more and more people in the whole world because it brings the destructive effect to thesocial economy,environment and the agriculture ecosystem.Xinjiang is the main area where saline-alkali soil of our country is distributed, the whole area nearly has saline-alkali soil in various degree that is distributed, which exert a tremendous influence to agricultural production,the soil salinization is the principal restriction of arid region agricultural development,it is also import factor that affect the stable ecological environment of Oasis.Author has investigated and examined some on the spot through a large number of field and base on laboratory analyze, Study on the environment of groundwater and token character of salinization's ion,find out the soil-salinization response on the evolvements of groundwater environment and it's process,from the point of microcosmic view to open out process and degree which is the soil-salinization responsing on the evolvements of groundwater environment,find out water table,soil water,surface water response on process of salinization and it's dynamical,It is very important to father saline soils, prevent further pervasion and degeneration, continue to develop the agriculture,and carry on the reasonable plan,making a reasonable scheme to control saline-alkali soil, controlling the further deterioration of the saline-alkali soil,becomes one of consequence at the present1. Analyze the season change of environment to groundwater, this article reflect the evolvements of groundwater environment mostly from the season change of ion and depth of groundwater , Author has examined some on the spot through a large number of field and set up apparatus to observe the depth of groundwater in Yutian oasis,The results shows that it is season change to the depth of groundwater distinctly , it is correlate with using water of agriculture in Yutian, using ArcGIS software to analyse the depth of groundwater dimensional variance, the all and the one put up direction of east and west is variant to south and north.2. Analyse ion seasonal chang of groundwater,it is gradually raising from Mar to July and declining to Sep,and then raising, as a whole, the average value of ion to groundwater is fist raising,and then declining, it indicates that the ion of groundwater on water table has content highest in summer, it has relation likely to influence by climate and man-made .3. Analyse character of conten to soil ion, firstly the paper using Sep's siol exemple to classify the soil-salinization , classify different soil layer into different soil-salinization type in Yutian oasis, The results indicates that the type of soil-salinization give priority to as sulfate and sulfite in Yutian oasis.4. Analyze the different degree to salinization of sample soil's moisture we can find out that observation well and salinization soil's moisture which the change of perpendicularity increasing with depth of soil that the moisture augmenting, also salinization soil's moisture is higher than soil's in observation well,the change of perpendicularity scope is minisher in salinization soil,The result indicates that soil's moisture is higher in salinization soil, and that along with the depth of soil increasing the soil's moisture change not too much. In this point of view ,It has affinity with soil's moisture and high depth of groundwater in salinization soil.5.characteristics of the average ion Vertical changes in soil analysis, indicated that soil salinization characteristics in the general of the ion change significantly in 0 ~ 40 cm soil layer, and 0~20 cm soil change is the most significant,that is to say salinization of soil layer mainly concentrated in the farming and Table-evident.6.seasonal variation of average soil Ion analysis, soil salinization-average levels can be seen seasonal change significantly in 0 cm ~ 60cm soil layer, it started to decline from March and began to rise in May,between May and July, changed little, afterthat,it Began to a slow recovery,seasonal variation of ion is more greater between September and December.Ions from the average level on the whole,It is a first increase after declining trend.The result of this research will produce the significant meaning for the research on the saline-alkali soil in the arid area. And in the expansion XinJiang that a large part of it belongs to the arid area, This article study on the soil-salinization response on the evolvements of groundwater environment, taking the Yutian oasis as study area has realistic meaning to the environment research in arid area.