摘要
文章通过对2024年北京松山国家级自然保护区(以下简称研究区)进行样点布设并采样检测,进行人工增雨释放的外源银在降水、地表水以及腐殖质、表层土壤中含量的变化研究,以期探究人工增雨背景下外源银对环境的影响。研究显示:汛期降水中银含量为0~0.650μg·L^(-1),非汛期降水中银含量为0~0.320μg·L^(-1),汛期降水中银含量高于非汛期降水中银含量。地表水中银含量为0.008~0.150μg·L^(-1),汛期与非汛期差别不大。降水和地表水银含量远低于我国《生活饮用水卫生标准》(GB5749—2022)中50μg·L^(-1)的标准限值。汛期前腐殖质层银含量为0.005~0.175μg·g^(-1),汛期后腐殖质层银含量为0.032~0.136μg·g^(-1),说明人工增雨释放的外源银随雨水的冲刷向下淋溶至土壤中。表层土壤中银含量为0~0.268μg·g^(−1),呈现南高北低的趋势,其中汛期前表层土壤银含量在0~0.186μg·g^(−1),汛期后表层土壤银含量为0.078~0.268μg·g^(-1),表现出汛期后土壤银含量高于汛期前的特征。腐殖质和表层土壤中银含量虽有变化,但都在中国土壤银含量背景值范围内。
In order to explore the environmental impacts of exogenous silver from artificial rain enhancement,the variations in the content of exogenous silver released by artificial rain enhancement in precipitation,surface water,humus and soil were studied through the arrangement and measurement of sampling sites in Beijing Songshan National Nature Reserve in 2024.The results showed that the concentration of silver in precipitation during the flood season was 0~0.650μg·L^(-1),while that in precipitation during the non flood season was 0~0.320μg·L^(-1).The silver content in precipitation during the flood season was higher than that during the non flood season.The silver content in surface water was 0.008~0.150μg·L^(-1),with little difference between the flood and non flood seasons.The silver contents in precipitation and surface water were far below the standard limit of 50μg·L^(-1) specified in China's Standards for Drinking Water Quality(GB 5749—2022).The silver content in the humus layer before the flood season was 0.005~0.175μg·g^(-1),and that after the flood season was 0.032~0.136μg·g^(-1),indicating that the exogenous silver released by artificial rain enhancement was leached downward into the soil by rainwater.The silver content in surface soil was 0~0.268μg·g^(-1),showing a trend of being higher in the south and lower in the north.Additionally,the silver content in surface soil before the flood season was 0~0.186μg·g^(-1),and that after the flood season was 0.078~0.268μg·g^(-1),demonstrating that the soil silver content after the flood season was higher than that before the flood season.Although the silver contents in humus and soil varied,they were all within the range of the background values of soil silver content in China.
作者
张瑞
任霄玉
娄和震
潘宝林
宛霞
李喆
毕凯
黄梦宇
时少英
陈云波
ZHANG Rui;REN Xiaoyu;LOU Hezhen;PAN Baolin;WAN Xia;LI Zhe;BI Kai;HUANG Mengyu;SHI Shaoying;CHEN Yunbo(Capital Normal University,Beijing 100048,China;Beijing Weather Modification Center,Beijing 100089,China;Beijing Normal University,Beijing 100875,China)
出处
《内蒙古气象》
2025年第6期1-8,16,共9页
Meteorology Journal of Inner Mongolia
基金
北京市自然科学基金项目(8234071)
中国气象局创新发展专项项目(CXFZ2023J041)
中国气象局创新发展专项项目(CXFZ2025J043)
“重大自然灾害防控与公共安全”重点专项项目(2023YFC3007600)共同资助。
关键词
人工增雨
北京松山国家级自然保护区
下垫面
银含量
Artificial rain enhancement
Beijing Songshan National Nature Reserve
Underlying surface
Silver
