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| 2008—2019年黑龙江省酸雨特征分析 |
| Variation Characteristics of Acid Rain in Heilongjiang Province from 2008 to 2019 |
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| DOI： |
| 中文关键词: 降水 pH值 酸雨频率 平均电导率 黑龙江省 |
| 英文关键词: Precipitation pH value Frequency of acid rain Average conductivity Heilongjiang |
| 基金项目:中国气象局创新发展专项基金资助项目（CXFZ2022J041）；风云卫星应用先行计划基金资助项目（FY-APP-2021.0303）；风云三号03批气象卫星工程地面应用系统基金资助项目（FY-3(03)-AS-12）；2021年度黑龙江省气象局科技攻关基金资助项目（HQGG202107）；黑龙江省气象局2020年度基金资助项目（HQZC2020014） |
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| 中文摘要: |
| 采用统计分析与空间插值等方法对黑龙江省16个酸雨监测站2008—2019年的酸雨观测数据统计计算，分析该省酸雨变化特征和影响因素。结果表明：12 a间黑龙江省秋冬季在pH值＜5.60条件下酸雨频率均值达到15.6%，维持在较高水平；相关性分析显示，在pH值＜5.00条件下年均降水pH值与酸雨频率的相关系数为-0.83，呈强负相关性；虽然有效降水量是酸雨产生的前提条件，但年有效降水量与pH值相关性不明显，平均电导率与年均有效降水量的相关系数达到-0.80，降水量对电导率有较强的抑制作用；空间分布显示，在pH值＜5.60和＜5.00条件下的酸雨频率分别为20%～55%和10%～35%，酸雨频率高值区与pH低值区分布趋于一致。 |
| 英文摘要: |
| Based on statistical analysis and spatial interpolation method, the data from 16 acid rain monitoring stations in Heilongjiang from 2008 to 2019 were statistically calculated to study the variation characteristics and influencing factors of acid rain. The results showed that the mean frequency of acid rain in autumn and winter in Heilongjiang reached 15.6% under the condition of pH＜5.60 in recent 12 years, maintaining a high level. Correlation analysis showed that under the condition of pH＜5.00, the correlation coefficient between pH value and acid rain frequency was -0.83, showing a strong negative correlation. Although effective precipitation was a precondition for acid rain, the correlation between the annual effective precipitation and pH value was not obvious. The correlation coefficient between average conductivity and annual average effective precipitation was -0.80, indicating that precipitation had a strong inhibition effect on conductivity. Spatial distribution showed that under the conditions of pH＜5.60 and ＜5.00, the frequency of acid rain was 20%～55% and 10%～35%, respectively. The distribution of acid rain in high frequency area was consistent with that in low pH value area. |
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