干旱区生态环境知识资源中心(Arid): 新疆干旱区季节性积雪中黑碳气溶胶研究

Arid

	新疆干旱区季节性积雪中黑碳气溶胶研究
其他题名	Black carbon in seasonal snow across northern of Xinjiang
	陈文倩 1; 丁建丽1 ; 张喆 1; 王鑫 2; 浦伟 2; 刘博华 1; 曹肖奕 1
来源期刊	中国环境科学
ISSN	1000-6923
出版年	2019
卷号	39 期号:1 页码:83-91
中文摘要	利用中分辨率成像光谱仪(MODIS)遥感数据与2018年1月野外实测的28个雪样,综合分析新疆干旱区季节性积雪中黑碳气溶胶浓度(BC)分布特征与气溶胶光学厚度(AOD)等.利用HYSPLIT-4后向轨迹模式获取釆样点逐日的后向轨迹,分析BC的可能传输路径.结果表明:①北疆地区积雪覆盖率从11月份到次年1月份逐渐增加,冬季积雪覆盖率可达到97.5%,冬季AOD平均值为0.173,高值出现在天山北坡经济带区域与东部区域(0.2~0.35),低值区域主要在阿勒泰地区(0.06~0.1).②表层积雪的BC浓度范围为44.08~1949.9ng/g,平均值为536.71ng/g, BC浓度分布特征为:天山北坡经济带BC浓度(913.24ng/g)>艾比湖东南部区域(816.56ng/g)>艾比湖北部区域(421.94ng/g)>艾比湖西部区域(407.97ng/g)>克拉玛依区域(162.28ng/g)>古尔班通古特沙漠区域(124.89ng/g)>阿勒泰地区(98.51ng/g).随着海拔升高积雪中BC浓度有微弱上升,相关系数R 2为0.03,随着纬度增加积雪中BC浓度均呈下降趋势,R~2为0.255. ③艾比湖流域后向轨迹中以博乐-精河-艾比湖向东北方向输送路径为主,对采样点的BC浓度影响较大;天山北坡经济带区域主要以精河-石河子-乌鲁木齐的天山北坡城市群向东北输送路径为主,局地污染较为严重;阿勒泰地区的后向轨迹以俄罗斯南部-哈萨克斯坦北部-东哈萨克斯坦输送路径为主,局地污染贡献较少;克拉玛依区域主要来自哈萨克斯坦东部和西部向东方向的输送,局地污染不明显;沙漠区域主要以西南方向输送路径为主.
英文摘要	This paper analysed seasonal snow cover, AOD, BC (black carbon) concentration with MODIS data and samples data measured in January 2018 in the field, and obtained the potential BC transmission path through the HYSPLIT-4 to get the day-to-day back trajectory of every sample. The results showed that: ① Snow cover in northern Xinjiang reached 97.5%, which gradually increased from November to January. The average AOD in northern Xinjiang was 0.173, high values appeared in the northern slope economic zone of the Tianshan Mountains and eastern part of the Tianshan Mountains (0.2~0.35), however, the low was mainly distributed in Altay (0.06~0.1) ②The BC concentrations in the surface snow ranged from 44.08 to 1949.9ng/g, with an average of 536.71ng/g. The BC concentration distribution in northern Xinjiang was the northern slope of the Tianshan Mountains (913.24ng/g)> Southeastern of Ebinur Lake (816.56ng/g)> Northern of Ebinur Lake (421.94ng/g)> Western of Ebinur Lake (407.97ng/g)> Area of Karamay (162.28ng/g))> Gurbantunggut Desert Region (124.89ng/g)> Altay Region (98.51ng/g). The concentration of BC in snow in northern Xinjiang increased slightly with higher altitude, R~2 was 0.03. With the increase of latitude, the concentration of BC in snow had a decreasing trend, R2 was 0.255. ③The trajectory cluster analysis of the samples showed that the backward trajectory of the Ebinur Lake basin dominated by the northeastern direction of the Bole-Jinghe-Ebinur Lake, and this trajectory had a greater impact on the concentration of BC in snow; the economic zone on the northern slope of the Tianshan Mountains dominated by the northeastern cities of Jinghe-Shihezi-Urumqi on the northern slope of the Tianshan Mountains, the result showed that local pollution was serious. The backward trajectory of the Altay region dominated by the Russian-Northern Kazakhstan-East Kazakhstan transport path with less contribution from local pollution; the Karamay region was mainly transported from easten of Kazakhstan, it’s local pollution was not obvious. And the desert area dominated by the southwestern direction.
中文关键词	新疆干旱区 ; 季节性积雪 ; 黑碳 ; 后向轨迹模拟
英文关键词	arid area of Xinjiang seasonal snow cover black carbon back trajectory simulation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6413951
来源机构	兰州大学 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239735
作者单位	1.新疆大学资源与环境科学学院;;绿洲生态教育部重点实验室, 智慧城市与环境建模自治区普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国; 2.兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	陈文倩,丁建丽,张喆,等. 新疆干旱区季节性积雪中黑碳气溶胶研究[J]. 兰州大学, 新疆大学,2019,39(1):83-91.
APA	陈文倩.,丁建丽.,张喆.,王鑫.,浦伟.,...&曹肖奕.(2019).新疆干旱区季节性积雪中黑碳气溶胶研究.中国环境科学,39(1),83-91.
MLA	陈文倩,et al."新疆干旱区季节性积雪中黑碳气溶胶研究".中国环境科学 39.1(2019):83-91.