Water Chemistry and Hydrometeorology in a Glacierized Catchment in the Polar Urals,Russia

来源 :Journal of Mountain Science | 被引量 : 0次 | 上传用户:hrk303968324
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This study aims to determine the relationships between local meteorological conditions,proglacial river discharge and biogeochemical processes operating in a periglacial basin located in the Polar Ural mountain range, Russia. Fieldwork was conducted in the catchment of Obruchev Glacier(13 km2) during the summer peak flow period in 2008. River discharge was dominated by snowmelt and changed from 3300 l s-1 to less than 1000 l s-1. The mean daily air temperatures of stations situated in the mountain tundra and near Obruchev Glacier from July 11 th to August 1st 2008 were 14.4°C and 10.3°C, respectively. The glacial river had low total dissolved solids varying from 4.5 to 9 mg l-1 and coefficients of correlation between Na+ and Cl-, K+ and Cl-, as well as NH4+ and Cl- were 0.94, 0.90 and 0.84, respectively. Rainfall events affected the snowmelt initiation and provided an essential part of the discharge during the intense snowmelt period, which occurred from July 11 th to July 18 th 2008. Data showed that Na+ and K+ in the surface water derived from snowmelt rather than chemical weathering of silicates. Also, it was obtained that NO3- derived from the melting snowpack, whereas ammonification occurring under the snowpacks was the primary source for NH4+. This study aims to determine the relationships between local meteorological conditions, proglacial river discharge and biogeochemical processes operating in a periglacial basin located in the Polar Ural mountain range, Russia. Fieldwork was conducted in the catchment of Obruchev Glacier (13 km2) during the summer peak flow period in 2008. River discharge was dominated by snowmelt and changed from 3300 l s-1 to less than 1000 l s-1. The mean daily air temperatures station places in the mountain tundra and near Obruchev Glacier from July 11 th to August 1st 2008 were 14.4 ° C and 10.3 ° C, respectively. The glacial river had low total dissolved solids varying from 4.5 to 9 mg l-1 and coefficients of correlation between Na + and Cl-, K + and Cl-, as well as NH4 + and Cl- were 0.94, 0.90 and 0.84, respectively. Rainfall events affected the snowmelt initiation and provided an essential part of the discharge during the intense snowmelt period, which occurred from July 11 th to July 18 th 2008 . Data showed that Na + and K + in the surface water derived from snowmelt rather than chemical weathering of silicates. Also, it was obtained that the NO3- derived from the melting snowpack, exists ammonification occurred under the snowpacks was the primary source for NH4 +.
其他文献
中文期刊发行渠道的不同,对期刊的订购工作有着不同的影响,合理选择订购渠道是中文期刊采购的关键,并应根据市场变化采取不同的订购对策。 The different distribution chan
1956年开始采用的高中文学教材,有厚古薄今,脫离实际、脱离政治、为文学而文学的偏向。 (一)从我国古典文学与现代文学所占的比重来看:大家都知道,在授課时間上,高中文学科
今年七月,全国語文教学会議对于改进我国中小学目前的語文教学,曾經进行了深入的、广泛的討论。会議对于中小学語文教学的目的和任务、教学大綱、教科书、教学方法、师资情
1概述痛风是一组嘌呤代谢紊乱所致的疾病,其临床特点为高尿酸血症及由此引起的痛风性急性关节炎的反复发作、痛风石沉积、痛风石性慢性关节炎和关节畸形,并常累及肾脏,引起肾
历史课讲的是人的活动,人类在过去进行阶级斗争和生产斗争的活动。这些活动发生在一定的时间和空间,有着自己的具体的活的形象和客观的因果规律,有着来龙去脉。离开了这几个
漢語拼音方案(草案),經國务院同意由中國文字改革委員会送請中國人民政治协商会議全國委員会和各省、市、自治区政治协商委員会从2月到3月分別組織座談討論,并于2月12日在“
“收罢秋,打罢場,冬季事少上学堂”。中共陵川县委、县人委,为了更好地发揮老解放区举办冬学的优良傳統,使冬学真正成为农村政治、經济、文化活动的中心場所,不断提高广大群
在一切工作中突出政治,这是党根据社会主义社会的发展规律和社会主义社会的经济基础,根据社会主义社会还存在着阶级和阶级斗争的事实,提出来的兴无产阶级思想、灭资产阶级思
人教版小学数学教材所提供的主题图,大致可以分为两类。一类是向我们提供了可以参考和借鉴的教学资源,属于自然情境类。另一类则是提供了一些师生在教学过程中的活动或操作方
沅水桃源水电站是湖南省人民政府与中国水电顾问集团合作的战略投资项目,由湖南省发改委“湘发改能源[2010]1058号”文核准。电站位于湖南省桃源县城漳江镇双洲,沅水干流14个