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research in cold and arid {3. 2010年第2期2卷 93-103页

作者： FuJun Niu 1,2,GuoYu Li 1,ShuPing Zhao 1,ShuJuan Zhang 1,YongGuo Zhao 2,HuiJun Jin 1 1.state key laboratory of frozen soil engineering,cold and arid {3. environmental and engineering research institute,chinese Academy of sciences,lanzhou,Gansu Province 73.000,china 2.{13. laboratory of Highway Construction and Maintenance Technology for Permafrost {3. of Ministry of Communications,CCCC First Highway Consultants Co.,Ltd.,Xi’an,Shaanxi Province 710068,china state key laboratory of frozen soil engineering Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of ScieneesLanzhouGansu Province 730000China key laboratory of Highway Construction and Maintenance Technology for Permafrost regions of Ministry of Communications CCCC First Highway Consultants Co.Ltd.Xi'anShaanxi Province 710068China state key laboratory of frozen soil engineering Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of ScieneesLanzhouGansu Province 730000China key laboratory of Highway Construction and Maintenance Technology for Permafrost regions of Ministry of Communications CCCC First Highway Consultants Co.Ltd.Xi'anShaanxi Province 710068China

The Eighth International Symposium on Permafrost engineering was held in Xi’an,china,October *** major topics discussed in the symposium included:permafrost engineering (involving design,construction and evaluation);mitigation of frost hazards in the {3. affected by seasonally frozen ground;properties of frozen soils,model development and their applications;frost hazards and periglacial environments in mountain and plateau {3.;climatic,environmental and cryospheric changes;and permafrost hydrology,cold {3. water resources and land *** papers submitted to the symposium and lectures during the meeting represented some new developments of research on cold region engineering and *** we summarized the works of the symposium in topics including:Permafrost engineering;General geocryology;Properties of frozen soils:model development and their applications;And climatic,environmental and cryospheric *** the symposium,the attendees pointed out that future studies should pay more attention to theoretical study and engineering mechanism study,and also on interaction between climate change and cold region environments and their engineering affects.

关键词： the 8th symposium permafrost engineering cold region environment summarizing

Concentrations,Seasonal Variations,and Transport of arbonaceous Aerosols at a Remote Mountainous Region in Western china

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Concentrations,Seasonal Variations,and Transport of arbonace...

The research of three-dimensional numerical simulation of groundwater-flow: taking the Ejina Basin, Northwest china as example

第十届全国气溶胶会议暨第六届海峡两岸气溶胶技术研讨会

作者： Jun-Ji Cao 1,Bai-Qing Xu 2,Jian-Qiao He3.Xian-Qin Liu3.Yong-Ming Han1 1 SKLLQG,institute of Earth environment,chinese Academy of {3.,Xi’an 710075,china 2 laboratory of Tibetan environment and Land Surface Processes,institute of Tibetan Plateau research,chinese Academy of {3.,Beijing 100085,china 3.state {13. laboratory of Cryosphere {3.,cold and arid regions environmental and engineering research institute,chinese Academy of {3.,lanzhou 73.000,china

Carbonaceous aerosol concentrations were determined for samples collected from Muztagh Ata Mountain in western china from December 2003.to February *** carbon（EC） in total suspended particle（TSP） samples varied from 0.004 to 0.174 μg m-3.average = 0.056 μg m-3. while organic carbon（OC） and carbonate carbon（CC） ranged from 0.12 to 2.17 μg m-3.and below detection to 3.57 μg m-3.*** EC and OC concentrations occurred during the winter-spring seasons while CC concentrations were higher during the warmer *** accounted for～7% of the total carbon（TC = EC + OC + CC） during spring and summer and 11% during autumn and winter;EC was the smallest carbonaceous fraction except in winter when CC was the ***/EC ratios varied from 2.9 to 3..1（average = 10.0）,and strong correlations between OC and EC（R2:0.75 to 0.77） in spring and winter suggest their cycles are coupled,but lower correlations in summer（0.3.） and autumn（0.57） suggest that biogenic emissions and secondary OC become important as temperatures *** of in air parcel back trajectories indicate that about 0.05 μg m-3.EC,0.42 μg m-3.OC,and 0.10 μg m-3.CC were transported from outside *** Ata has EC concentrations nearly as low as those in polar areas;these may represent a background level for inland *** annual EC concentration was fall in the range and close to the lowest bound of EC contents that recovered from ice core drilled in Muztagh Ata glaciers.

关键词： Elemental carbon Organic carbon Carbonate carbon Aerosol Ice core Remote Atmosphere

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research in cold and arid {3. 2009年第3期1卷 238-248页

作者： Qi Feng 1,2, HaiYang Xi 1, Wei Liu 1,3. JianHua Si 1,2, ZongQiang Chang 1,2, YongHong Su 1,2 1. cold and arid regions {3.al and engineering research institute, chinese Academy of sciences, lanzhou, Gansu 73.000, china. 2. Alashan Desert Eco-hydrology Experimental research Station, lanzhou, Gansu 73.000, china. 3. state key laboratory of Hydrosciences and engineering, Tsinghua University, Beijing 100084, china. chinese Acad Sci Cold & Arid Reg Environm & Engn Res Inst 320 West Donggang Rd Lanzhou 730000 Gansu Peoples R China Alashan Desert Ecohydrol Expt Res Stn Lanzhou 730000 Gansu Peoples R China Tsinghua Univ State Key Lab Hydrosci & Engn Beijing 100084 Peoples R China

Water is a primary controlling factor for economic development and ecological environmental protection in the inland river basins of arid western china. And it is groundwater, as the most important component of total water resources, that plays a dominant role in the development of western china. In recent years, the use-ratio of surface water has been raised, the groundwater recharge rate from surface water has been reduced, and groundwater has been exploited on a large scale. This has led to the decline of ground-water levels and the degradation of eco-environments in the Heihe watershed. Therefore, the study on the change in groundwater levels in recent years, as well as simulating and predicting groundwater levels in the future, have become very significant for im-proving the ecological environment of the Heihe River Basin, to coordinate the water contradiction among upper, middle and lower reaches of Heihe River Basin and to allocate the water resources. The purpose of this study is to analyze the groundwa-ter-level variations of the Ejina region based on a large scale, to develop and evaluate a conceptual groundwater model in Ejina Basin, to establish the groundwater flow model using the experimental observation data and combining Modular Three-Dimensional Groundwater Flow Model (MODFLOW) and GIS software, to simulate the regional hydrologic regime in re-cent 10 years and compare various water-delivery scenarios from midstream, and to determine which one would be the best plan for maintaining and recovering the groundwater levels and increasing the area of Ejina oasis. Finally this paper discusses the pos-sible vegetation changes of Ejina Basin in the future.

关键词： groundwater flow model Ejina Basin MODFLOW Heihe River

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昆仑山垭口多年冻土区钻孔气体组分分析

天然气地球科学 2011年第6期22卷 1076-1081页

作者：杨玉忠吴青柏邓友生蒋观利张鹏中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室甘肃兰州730000

昆仑山垭口多年冻土区2个钻孔的气体组分和同位素数据显示,钻孔气体中烃类气体以CH4为主,含微量的C2H6、C3.8和C4H10。钻孔-1泥浆气体的C1/(C2+C3.值介于163.1 642之间;钻孔-2岩心和泥浆气体主要为CH4气体组分,未检出C2H6等气体组分,... 详细信息

昆仑山垭口多年冻土区2个钻孔的气体组分和同位素数据显示,钻孔气体中烃类气体以CH4为主,含微量的C2H6、C3.8和C4H10。钻孔-1泥浆气体的C1/(C2+C3.值介于163.1 642之间;钻孔-2岩心和泥浆气体主要为CH4气体组分,未检出C2H6等气体组分,同时δ13.CH43.CCO2值介于-26.8‰～-20‰之间,小于-10‰,说明其为有机成因气。

关键词：昆仑山垭口气体组分多年冻土区

Black Carbon Deposition and High Asia Glaciers

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Black Carbon Deposition and High Asia Glaciers

强化科技基础推进气象现代化——第29届中国气象学会年会

作者： Jing Ming1, 2, Cunde Xiao2, Zhencai Du3. Xingguo Yang2 1 china National Climate Center (CNCC), Beijing 100081, china 2 state {3. laboratory of Cryospheric sciences (SKLCS), cold and arid regions environmental and engineering research institute, {13. Academy of sciences, lanzhou 73.000, china 3.institute of Atmospheric Physics, {13. Academy of sciences, Beijing 100029, china

Black carbon (BC) is now concerned as one of the most significant factors impacting environment and climate mainly from anthropogenic activities. One aspect of its impacts is that the accelerated snow and ice in nature when BC is deposited in their surfaces. Since 2000, 18 High Asia glaciers have been surveyed for black carbon deposition 22 times, and numerous snow samples and ice cores have been collected by researchers. However, most of the results were interpreted individually in papers. Here, we assemble the data and discuss the distribution of BC deposition and its impacts on the melting of the glaciers through radiative forcing. We find that BC distribution on the surfaces of High Asia glaciers primarily depends upon their elevations (i.e., higher sites have lower concentrations) and then on regional BC emissions associated with surface melting conditions. BC concentrations in High Asia glaciers are similar to the Arctic and western American mountains but are significantly less than heavy industrialized areas such as northern china. Although Himalayan glaciers, which are important due to their water resources, are directly facing the strong emissions from South Asia, their mean BC is the lowest due to high elevations. A new finding indicated by ice core records suggested great valleys in the eastern Himalayan section are effective pathways for BC entering the Tibetan Plateau and makes increasing BC trends in the local glaciers. On average, BC deposition causes a mean forcing of ～6 W m-2 (roughly estimated 5% of the total forcing) in High Asia glaciers and therefore may not be a major factor impacting the melting of most glaciers.

关键词：

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土地沙质荒漠化过程的土壤分形特征

土壤学报 2002年第6期39卷 877-881页

作者：赵文智刘志民程国栋中国科学院寒区旱区环境与工程研究所

土壤特性往往是沙质荒漠化的一个指征，也是不同形式的土地沙质荒漠化导致的生态系统功能改变的一个非常重要的测度。粒度组成是土壤结构和生产力的重要方面。

关键词：土壤分形特征土地沙质荒漠化分形维数粒径重量分布

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论青藏铁路修筑中的冻土环境保护问题

水文地质工程地质 2002年第4期29卷 14-16,20页

作者：吴青柏施斌南京大学地球科学系地球环境计算工程研究所

本文通过研究已建青藏公路修筑过程中寒区冻土环境和生态环境的破坏特征 ,分析总结了寒区环境破坏对公路工程的影响。青藏公路工程修建活动极大地改变了冻土环境 ,使得多年冻土退化 ,上限加深 ,诱发了一系列冻胀、融沉、热融滑塌等冻融... 详细信息

本文通过研究已建青藏公路修筑过程中寒区冻土环境和生态环境的破坏特征 ,分析总结了寒区环境破坏对公路工程的影响。青藏公路工程修建活动极大地改变了冻土环境 ,使得多年冻土退化 ,上限加深 ,诱发了一系列冻胀、融沉、热融滑塌等冻融灾害 ,使得生态环境原本就很脆弱的寒区环境更加恶化 ,如植被退化、荒漠化等 ,同时 ,冻土环境的破坏也使得工程环境恶化 ,直接影响青藏公路正常交通运输。因此 ,在即将进行的青藏铁路修筑工程中 ,必须深入研究其对冻土环境的影响 ,对冻土环境问题和环境保护应予以足够的重视。

关键词：青藏铁路冻土环境冻融灾害荒漠化冻胀融沉植被退化

青藏铁路高填方路基对下伏多年冻土热状况的影响

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铁道工程学报 2003年第4期20卷 22-25页

作者：盛煜马巍温智中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室兰州730000

基于青藏铁路北麓河试验段两个监测断面的地温监测资料 ,分析了修筑高路基后下伏土层的热状况变化特征。结果表明 ,修筑高路基后 ,多年冻土上限有所抬升 ,而下伏土层地温明显升高。多年冻土上限的抬升主要是由于高路基的热阻效应导致上... 详细信息

基于青藏铁路北麓河试验段两个监测断面的地温监测资料 ,分析了修筑高路基后下伏土层的热状况变化特征。结果表明 ,修筑高路基后 ,多年冻土上限有所抬升 ,而下伏土层地温明显升高。多年冻土上限的抬升主要是由于高路基的热阻效应导致上限附近土层温度变幅急剧减小而形成的。高路基的修筑会引起路基阴阳面热交换状态的明显差异 ,路基阳面边坡是最强烈的吸热面 ,而路基阴面边坡表现为放热效应。

关键词：青藏铁路高填方路基热状况冻土地区温度吸热效应

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景电灌区次生盐渍化土壤冻融特征

土壤学报 2002年第4期39卷 512-516页

作者：张立新徐学祖韩文玉北京师范大学遥感与GIS研究中心资源与环境科学系北京100875 中科院寒区旱区环境与工程研究所冻土工程国家重点实验室兰州730000 甘肃省景泰县水利局景泰730400

通过对景电灌区一个冻融周期的现场观测,发现盐渍化土壤冻结期缩短,冻结深度减小,冻结起始位置不是地表,而是位于地表以下某个深度,这导致在冻结发展期间有两个冻结锋面出现,使水热盐动态更为复杂。

关键词：景电灌区次生盐渍化土壤冻融特征