北京大学学报自然科学版 ›› 2025, Vol. 61 ›› Issue (2): 217-226.DOI: 10.13209/j.0479-8023.2024.115

上一篇    下一篇

典型绿洲城市土壤风蚀扬尘排放清单构建及时空分布特征

白雯宇1, 李晓芳2, 张宏彬2, 王静1, 赵雪艳1, 赖晓姗3,†, 洪雯4,†, 姜艳1   

  1. 1. 中国环境科学研究院, 北京 100012 2. 哈密市生态环境局, 哈密 839000 3. 新疆维吾尔自治区哈密生态环境监测站, 哈密 839000 4. 新疆维吾尔自治区生态环境监测总站, 乌鲁木齐 830011
  • 收稿日期:2024-06-24 修回日期:2024-10-16 出版日期:2025-03-20 发布日期:2025-03-20
  • 通讯作者: 赖晓姗, E-mail: 262388645(at)qq.com, 洪雯, E-mail: platypusmanor(at)hotmail.com
  • 基金资助:
    新疆维吾尔自治区生态环境监测总站“新疆重污染天气应急管控能力建设”项目(2022-地方科研-1065)资助

Construction of Emission Inventory and Temporal-Spatial Distribution of Soil Fugitive Dust in Typical Oasis Cities

BAI Wenyu1, LI Xiaofang2, ZHANG Hongbin2, WANG Jing1, ZHAO Xueyan1, LAI Xiaoshan3,†, HONG Wen4,†, JIANG Yan1   

  1. 1. Chinese Research Academy of Environmental Sciences, Beijing 100012 2. Hami Ecological Environment Bureau, Hami 839000 3. Hami Ecological Environment Monitoring Centre of Xinjiang Uygur Autonomous Region, Hami 839000 4. Ecological Environment Monitoring Station of Xinjiang Uygur Autonomous Region, Urumqi 830011
  • Received:2024-06-24 Revised:2024-10-16 Online:2025-03-20 Published:2025-03-20
  • Contact: LAI Xiaoshan, E-mail: 262388645(at)qq.com, HONG Wen, E-mail: platypusmanor(at)hotmail.com

PDF

1510

摘要：

为评估土壤风蚀作用对绿洲城市大气颗粒物排放量的贡献, 以新疆阿勒泰市、哈密市伊州区、喀什市为研究区域, 基于收集到的土壤扬尘源活动水平和排放因子数据, 采用排放因子法和GIS技术, 建立研究区域2021年3 km×3 km高分辨率土壤风蚀扬尘颗粒物 PM2.5和PM10的排放清单。结果表明, 阿勒泰市、喀什市和哈密市伊州区土壤扬尘源PM10的排放量依次为40983.79, 6541.97和1974362.24 t, PM2.5的排放量依次为7069.69, 1090.49和326187.68 t。哈密市伊州区是研究区域内颗粒物排放量最大的区域, 其PM10排放量分别是喀什市和阿勒泰市的302倍和48倍。受土质类别、地处沙源区以及风速较大等因素影响, 哈密市伊州区土壤风蚀扬尘源颗粒物的排放强度也明显较高。哈密市伊州区土壤风蚀扬尘月排放特征呈现单峰型, 5月排放量最大; 喀什市和阿勒泰市呈双峰型, 喀什市的峰值出现在6和8月, 阿勒泰市的峰值出现在5和7月。

关键词: 土壤风蚀, 绿洲城市, 大气颗粒物, 排放清单, 排放强度

Abstract:

To evaluate the contribution of soil wind erosion to the particulate matter emissions of oasis cities, based on collected activity levels and emission factors related to soil fugitive dust, a 3 km×3 km-gridded emission inventory of PM2.5 and PM10 from soil fugitive dust in Xinjiang typical oasis cities (Altay City, Yizhou District of Hami City, and Kashgar City) in 2021 was developed in combination with Emission Factors and GIS technology. The results showed that the total emissions of PM10 from soil fugitive dust in Altay City, Kashgar City, and Yizhou District of Hami City were estimated to be 40983.79, 6541.97, and 1974362.24 t, respectively. The total emissions of PM2.5 were estimated to be 7069.69, 1090.49, and 326187.68 t, respectively. The particulate matter emission of Yizhou District of Hami City was the highest among the study areas, and the emission of PM10 is 302 times and 48 times higher than that of Kashgar and Altay. Due to factors such as soil type, location in the sand source area, and high wind speed, the emission intensity of particulate matter from soil wind erosion in Yizhou District of Hami City was also significantly higher than that of the other two cities. The temporal distribution characteristics in Yizhou District of Hami City showed a unimodal pattern, with the highest occurring in May. Kashgar City and Altay City both showed a bimodal pattern, with Kashgar City’s peaks occurring in June and August, and Altay City’s peaks occurring in May and July. 

Key words: soil wind erosion, oasis city, particulate matter, emission inventory, emission intensity

版权所有 © 《北京大学学报（自然科学版）》编辑部
技术支持：北京玛格泰克科技发展有限公司