salt accumulation造句

• Study on the mechanism of salt accumulation in songnen plain in spring
  以吉林省松原市长岭县十三泡地区为例
• Salt accumulation in soil during the development of in tarim basin
  塔里木盆地盐渍土开发中搬运盐聚层问题的研究
• But on the later condition the trend of accumulation turned to be stable in the w3 treatment ( vseawater / v pure water = 1 ) - in root zone soil , variation of sar value accorded with total salt accumulations and sometimes decreased at the treatment where the v seawater / v pure water > 1 . contents of cl - and na + which were the main ions and leached obviously in 0 - 60cm soil were greatly influenced by rainfall , but the rainfall did not affected the contents of ca2 + , mg2 + and k + whose ability of leaching is worse than that of cl - and na + in the root zone soil obviously . the vertical distribution of salt ions in the 0 - 60cm soil were mainly affected by the ratio of v seawater / v pure water in the irrigation water on the condition of not enough rainfall , but on the cont
  海水灌溉下，耕层土壤中盐分含量受降雨量影响很大，足够的降雨条件下，盐分不会积累，降雨量较低时，盐分积累明显，但在50海水处理下趋于平衡状态；耕层土壤sar值的变化情况和盐分含量变化情况相一致，在灌溉水中海水浓度大于50时有所下降；土壤中主要盐离子为cl ~ -和na ~ + ， 0 - 60cm土层内， na ~ + 、 cl ~ -明显的向土壤底层迁移，其在土壤中的含量受降雨影响显著，而ca ~ ( 2 + ) 、 mg ~ ( 2 + )和k ~ +在土壤中迁移能力较低，其含量受降雨影响较小； 0 - 60cm层次土壤盐分的纵向分布在降雨量较低的条件下主要受灌溉水中海水浓度的影响，而在降雨充分的条件下，地面覆盖程度成为重要的影响盐分和水分胁迫下菊芋的生理响应及其海水灌溉研究因子之一。