After precipitation passing through Larix gmelinii Plantations,the DO reduce gradually,the TURB and COND increase obviously. The ORP reduce gradually. The total average concentration of Na,Ca and Mg increase gradually.

• 大气降水经过林冠层后溶解氧含量降低,浊度和电导率明显增加,氧化还原电位逐渐降低,Na、Ca和mg离子总平均浓度逐渐升高。