Geochemical evaluation of irrigation water and crops in Dashetai area,Inner Mongolia
This paper is the result of geochemistry geology.[Objective]Irrigation water is an important input route for elements in soil and crops,in order to identify the geochemical characteristics of irrigation water and major crops in Dashetai area of Inner Mongolia,geochemical evaluation of irrigation water and crop quality was carried out.[Methods]A total of 30 irrigation water samples,28 corn samples and 13 pepper samples were collected in Dashetai area during September to October of 2021.[Results]Geochemical tests were carried out,and the test results showed that the chemical type of irrigation water in the wells in the survey area was HCO3-Na·K ions are mainly derived from silicate rocks,Ca2+and Mg2+ions are mainly derived from the dissolution of carbonate and sulfate minerals such as calcite,dolomite and gypsum,and silicate minerals are also one of the main sources,and strong ion exchange occurs.[Conclusions]The irrigation water is alkaline,the main heavy metal elements and compounds are within the specified limits,which meet the irrigation water quality standards,combined with the evaluation indicators such as SAR,SC,PI and RSC,it is considered that the irrigation water quality in the area is better. The heavy metal content in chili pepper and corn is below the limit value specified in the standard lmit,which is at a safe level. On the whole,the Dashetai area is an excellent agricultural cultivation area.
万方数据
维普
