不同耕种年限下土壤盐分变化规律试验研究

Experimental Research on Salty Soil Profile Transfer Law under Different Farming Times

通过新疆121团不同滴灌年限土壤盐分取样分析看出:受人类活动的影响土壤盐分从表层向底层转变;随着耕种时间的延长,土壤平均含盐量累积情况呈先减小后增大的运移趋势;土壤各层含盐量之间关系随耕种时间的延长呈现一定的关系。该结果为盐碱地棉花膜下滴灌土壤水盐次生盐渍化的治理与防治提供了科学依据。

Through the sample analysis of soil salinity under different drip irrigation years in Xinjiang 121 Corps,it can be found that the impact of human activities cause the transfer of soil salinity from surface to the bottom.With the increase of the cultivation time,the accumulation of the average soil salinity shows the tendency of first decrease and then increase,the soil salinity in different layers show a certain relationship.The results supply scientific base for the management and prevention of the secondary salinization of water and salt under the film mulched irrigation of cotton in the saline-alkali field.