【摘要】 石河子降水中性偏碱.83年7月至84年6月共采雨雪样品58份,pH中位数7.35,其中pH<5.5者为0,pH>7者为49份,占84.5％.障水偏碱的原因是碱性地表土壤→碱性风沙扬尘→碱性大气尘污染→碱性雨雪降水。故表层土壤性质及成份可影响降水酸度.更多还原

【Abstract】 Precipitation in Ski He Zi is a little basic.58 samplesof rain or snow were collected during July 1983 to June 1984,PH of the samples:Mean=7.35,nohe of them was less than 5.5.Fourty- nine of them were more than 7.0,ie 84.5% of the samples.The basicprecipitation pricipally due to the basicity of the soil which resultsbasic dust,basic atmospheric pollution and basic precipitation.Composi-tion of the surface soil may affect the composition of precipition.更多还原