欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过分析在玉龙雪山冰川区采集的雪坑样品和部分表层雪样品，对冰川积雪中的大气粉尘沉积特征进行了深入研究．玉龙雪山积雪中粒径介于0．57＜ d ＜26μm微粒的平均数量浓度为115．07×103个·mL-1，平均质量浓度为6283．91μg·kg-1．与北半球其他地区类似研究相比质量浓度相对较高，玉龙雪山地区冰川积雪受局地污染源和中亚粉尘源区的影响较大．雪坑微粒浓度剖面和离子相关性分析表明，玉龙雪山积雪中具有明显的污化层位，且粉尘浓度和化学离子之间有较好的相关性；微粒的体积-粒径分布众数介于3-21μm，粒径分布显示了单结构模式．此外，玉龙雪山积雪中粉尘沉积量相对较高，这跟雪山及周边地区大量裸露的岩石风化物在积雪中的沉积有关．
英文摘要：
By analyzing the snow pit and surface snow samples collected from Mt. Yulong, we investigated within the characteristics of microparticles deposited in the snow cover. The number concentration of microparticles within 0. 57 〈 d 〈 26 μm is 115. 07 × 103 mL-1 , and the mass concentration is 6283.91 μg·kg-1 . Compared with the similar studies relevant with this topic, mass concentration of microparticles deposited into the Mt. Yulong snow were greatly higher. There exist distinct dust layers in the snow pits, and dust and major ions are highly correlated. Volume size distribution of dust particles in the snow showed a single-modal structure with average diameter from 3 to 21μm. Bare rocks surrounding the Mt. Yulong somewhat contributed to the high dust deposition in snow cover in the Mt. Yulong.
同期刊论文项目
同项目期刊论文
Glacier area and thickness change over the past four decades in Tomur Peak,western Chinese Tien Shan
Observation of carbonaceous aerosols during 2006-2009 in Nyainqntanglha Mountains and the implicatio
Characteristics of water soluble ionic species in fine particles from a high altitude site on the no
Assessment of air temperatures from different meteorological reanalyses for the East Antarctic regio
Characteristics of water stable isotopes and hydrograph separation in Baishui catchment during the w
Changes of six selected glaciers in the Tomor region, Tian Shan, Central Asia, over the past w50 yea
Estimating the Characteristics of Runoff Inflow into Lake Gojal in Ungauged, Highly Glacierized Uppe
Glacier Volume Calculation from Ice-Thickness Data for Mountain Glaciers—A Case Study of Glacier No.
Geothermal spring causes arsenic contamination in river waters of the southern Tibetan Plateau, Chin
Reconstruction of cultivated land during mid- Holocene in the middle and lower reaches of Yellow Riv
The earliest well-dated archeological site in the hyper-arid Tarim Basin and its implications for pr
Rural household energy consumption and its implications for eco-environments in NW China: A case stu
Atmospheric deposition of trace elements recorded in snow from the Mt. Nyainqentanglha region, south
A 47a high resolution chemistry record of atmospheric environment change from the Laohugou Glacier N
Ice thickness, volume and subglacial topography of Urumqi Glacier No. 1, Tianshan mountains, central
Recent strengthening of correlations between tree-ring delta C-13 and delta O-18 in mesic western Ch
A 400-year tree-ring delta O-18 chronology for the southeastern Tibetan Plateau: Implications for in
Variations in the equilibrium line altitude of Urumqi Glacier No.1, Tianshan Mountains, over the pas
A shift in cloud cover over the southeastern Tibetan Plateau since 1600: evidence from regional tree
Distribution of soils and landform relationships in permaforst regions of the western Qinghai-Xiang(
Mineralisation and Changes in the Fractions of Soil Organic Matter in Soils of the Permafrost Region
Recent changes of two selected glaciers in Hami Prefecture of eastern Xinjiang and their impact on w
Lead isotopic composition of insoluble particles from widespread mountain glaciers in western China:
Dissolved Organic Matter and Inorganic Ions in a Central Himalayan Glacier-Insights into Chemical Co
Luminescence chronology for late Quaternary lake levels of enclosed Huangqihai lake in East Asian mo
期刊信息
位置：