摘要
1987—1989年春季,在华南地区衡山、狮子山、苗儿山和白云山观测到华南高山降水酸化,各测点降水pH<5.6的频率大于68％,平均pH值在3.56—4.85之间,分析了高山降水的化学特征,及其与高山的地理环境等因素的关系.结果表明,高山雨水与高空云水有相似性,狮子山和白云山的云雾水主要属地形云,受局地源的影响更为严重,化学性质更接近于地面雨水.
The chemistry of the precipitation,aerosol,fog water and air samples collected on Heng Mt. of Hunan Province, Lion Mt. and Whitecloud Mt. of Guangdong Province and Miaoer Mt. of Guangxi Province was studied in springs of 1987-1989. The frequency of acid precipitation (pH<5.6) is greater than 68% and average pH is 3. 56-4. 85. The chemical characteristics of mountain precipitation, its relation to geographical position and distribution of pollutant sources are discussed. The results indicate that the composition of rain water on the mountains is similar to that of the cloud water at the upper air.The composition of Cloud fog water on the lion Mt. and whitecloud Mt. is close to that of ground rain water because most of the clouds on the two mountains are belong to the orographic Cloud. The research on mountain precipitation provides informations for the sources of precipitation acidity in Guangdong and Guangxi regions.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1992年第1期37-47,共11页
Acta Scientiae Circumstantiae
关键词
云雾水
降水
酸沉降
precipitation, acid deposition, cloud, fog.
