| This research is to lake aydingkol north oasis periphery soil and groundwater in the plain as the research object,apply scientific and accurate research methods,the related characteristics of soil and groundwater in the periphery of oasis were revealed,this paper aims to provide some theoretical basis for rational allocation of water and soil resources and sustainable development of oasis.The main conclusions of this study are as follows:(1)The soil of the northern oasis of aydingkol lake is neutral chloride-sulfate saline soil.Soil cationic accumulation is dominated by sodium ions,while anion accumulation is dominated by sulfate ions.Soil salinity presents a"T" distribution with strong surface cohesion and certain spatial variability of each characteristic quantity of salinity.The correlation between soil total salt and sulfate ions and sodium ions was the strongest between 0-20cm and 20-40cm,and between soil total salt and sulfate ions and calcium ions was the strongest between 40-60cm.Sulfate ions,sodium ions,magnesium ions and calcium ions are the characteristic factors of soil salinization.The soil salinization is the most serious outside the oasis in the northeast of aydingkol lake.(2)The chemical types of groundwater show a certain zonation,and there are transitional characteristics from HCO3·SO4 type to SO4·HCO3·Cl,and from SO4·Cl type to Cl·SO4 and Cl type.The interannual variation of groundwater depth is increasing,and groundwater performance is still characterized by exploitation type,the annual dynamic variation of groundwater depth is mostly of single peak type.From 2012 to 2016,compared with that from 2008 to 2012,the area of ground water buried and lowered by 5-10m and 10-20m is reduced,while the area of lowered by 0-5m is increased.In 2017,the dynamic change of the groundwater level is worsening.Population factors are the controlling factors that affect the groundwater depth in oasis plain area. |
PDF Full Text Request