The results showed that the lower initial soil moisture content was , the less infiltration occurred and wetting front moved slowly , and soil salt were leached more efficiently . at the same time , salt reduced in the top soil and salt accumulated at the wetting front 通過對土壤初始含水量下土壤水鹽運(yùn)移規(guī)律室內(nèi)模擬試驗(yàn)研究,發(fā)現(xiàn)隨著土壤初始含水量的增加,相同入滲歷時內(nèi)的累積入滲量和濕潤鋒都在增加。
When the saline water ( < 3g / l ) infiltrated to 45cm , the top soil of 0 - 37cm was desalinized , when the saline water of 3g / l infiltrated , the desalinized depth was 0 - 15cm . moreover , sar of top soil increased with the sar of the infiltration water . 3 . through lab experiment , the characteristics of soil water and salt movement under different initial soil moisture content were analyzed 當(dāng)濕潤深度為45cm時,小于3g l的微咸水入滲后, 0 - 37cm土層處于脫鹽狀態(tài),而3g l的微咸水入滲, 0 - 15cm土層處于脫鹽狀態(tài), 15cm - 35cm土層含鹽量基本等于初始含鹽量,但濕潤鋒處含鹽量很高。