利用1991—2012年中国气象局酸雨观测站网黑龙江省16个酸雨观测站的资料，采用统计分析和地理插值等方法，分析黑龙江省酸雨的时空变化特征。结果表明：1991—2012年黑龙江省酸雨的发生具有明显的季节性和年际差异，秋冬季酸雨发生严重，春夏季酸雨发生较少；且酸雨发生区域呈局部带状分布，酸雨发生严重的区域主要分布在黑龙江省中部偏西地区。1991—2012年黑龙江省年降水平均 pH 值＞5.60，1月降水平均 pH 值为4.61，其他月降水平均 pH 值均大于5.60；从酸雨发生的频率来看，近22 a 来黑龙江省酸雨平均发生频率小于30％，其中11月至翌年1月为酸雨的高发期。
Characteristics of acid rain in Heilongjiang province from 1991 to 2012
Based on acid rain data from an observational network of China Meteorological Administration in Hei-longjiang province during 1991-2012,temporal and spatial characteristics of acid rain were analyzed by methods of a statistics analysis and a geographical interpolation method.The results show that acid rain in Heilongjiang prov-ince has seasonal and interannual differences.It is serious in autumn and winter and weak in spring and summer. Spatial distribution of acid rain is local and zonal,and it is more serious in the west of central region of Hei-longjiang province than in the other regions.Average pH value of annual precipitation is more than 5.60,and it is 4.61 in January and more than 5.60 in the other months.Frequency of acid rain is less than 30% in the recent 22 years,and acid rain has higher concentrations from November to next January.
国家科技期刊平台
NSTL
万方数据
