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Guanli Jiang
Chinese Academy of Sciences
Clathrate hydratePermafrostInorganic chemistryHydrateMethane
8Publications
3H-index
31Citations
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Publications 10
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#1Guanli Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
#1Jiang GuanliH-Index: 4
Last. Wu QingbaiH-Index: 9
view all 5 authors...
Abstract Road engineering produces thermal influences on the permafrost on both sides of the road, but this impact is unclear yet. In this study, the thermal influences of the highway on the permafrost underneath different surfaces conditions were investigated by means of permafrost monitoring in two sites along the Qinghai-Tibet Highway (QTH). The results show that on both sides of the QTH there is a significant thermal influence on the permafrost, but this influence is closely related to the d...
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#1Yuzhong YangH-Index: 5
#2Qingbai WuH-Index: 25
Last. Peng ZhangH-Index: 4
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The stable-isotope data of ground ice from a deep borehole (~46 m) at the Tianshuihai (TSH) lake basin on the northwestern Qinghai-Tibet Plateau (QTP) are presented together with cryolithological information. Remarkable variations in the stable isotope composition of ground ice at depths allow a division of five clearly delineated stages. The remarkable deviations in stable isotopes of ground ice during each stage underline different initial source water and formation processes, indicating consi...
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#1Luyang Wang (CAS: Chinese Academy of Sciences)H-Index: 1
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Guanli Jiang (CAS: Chinese Academy of Sciences)
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Abstract Under the influences of climate change and human activities, desertification has become widespread on the Qinghai-Tibet Plateau (QTP). However, the effect of desertification on frozen soil is still debated. Here, soil temperatures are observed through 14 boreholes at Honglianghe River Basin on the QTP to study the relationship between desertification and frozen soil. The results showed soil temperatures change with the thickness of sand cover. With increasing sand thickness, maximum soi...
1 CitationsSource
#1Yuzhong Yang (CAS: Chinese Academy of Sciences)H-Index: 5
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Guanli Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
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1 CitationsSource
#1Yuzhong Yang (CAS: Chinese Academy of Sciences)H-Index: 5
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Guanli Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
view all 4 authors...
Abstract Climatic warming-induced permafrost (ground ice) thaw is expected to considerably alter hydro−geomorphology and the water cycle on the Qinghai-Tibet Plateau (QTP). A unique feature of permafrost is the substantial enrichment of ground ice, which can be used to directly indicate the past climate and hydrological cycle. However, essential characteristics of ground ice on the QTP are not yet understood. The stable isotope technique was used to investigate the formation processes and initia...
2 CitationsSource
#1Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
#2Peng Zhang (CAS: Chinese Academy of Sciences)H-Index: 4
Last. Xianbin Wang (CAS: Chinese Academy of Sciences)H-Index: 1
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It is important to understand the role of Qinghai-Xizang Plateau thermokarst lakes in the global atmospheric methane (CH4) and carbon dioxide (CO2) budget. This study investigated the gas components and isotopic characteristics of bubble gas collected from six thermokarst lakes. The major gas component of the bubbles varied greatly among lakes and bubble sources. Nitrogen (N-2), oxygen (O-2) and carbon dioxide (CO2) were the predominant constituents of bubbles, but argon (Ar) and methane (CH4) w...
8 CitationsSource
#1Peng Zhang (CAS: Chinese Academy of Sciences)H-Index: 4
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Yibin Pu (CAS: Chinese Academy of Sciences)H-Index: 2
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Abstract With a new apparatus designed and assembled by ourselves, the matrix potential of non-saturated loess was firstly measured and studied during methane hydrate formation processes. The experimental results showed that during two formation processes, the matrix potential changes of the loess all presented a good linear relationship with water conversion ratios. In addition, although it was well known that the secondary gas hydrate formation was easier than the initial, our experimental res...
1 CitationsSource
#1Guanli Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Jing Zhan (CAS: Chinese Academy of Sciences)H-Index: 4
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Abstract In order to study the nature of gas hydrate in porous media, the formation and dissociation processes of methane hydrate in loess were investigated. Five cooling rates were applied to form methane hydrate. The nucleation times of methane hydrate formation at each cooling rate were measured for comparison. The experimental results show that cooling rate is a significant factor affecting the nucleation of methane hydrate and gas conversion. Under the same initial conditions, the faster th...
8 CitationsSource
#1Peng Zhang (CAS: Chinese Academy of Sciences)H-Index: 4
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Yingmei Wang (CAS: Chinese Academy of Sciences)H-Index: 3
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In order to study water transfer characteristics inside non-saturated media during methane hydrate formation and dissociation processes, water changes on the top, middle and bottom locations of experimental media during the reaction processes were continuously followed with a novel apparatus with three pF-meter sensors. Coarse sand, fine sand and loess were chosen as experimental media. It was experimentally observed that methane hydrate was easier formed inside coarse sand and fine sand than in...
2 CitationsSource
#1Peng Zhang (CAS: Chinese Academy of Sciences)H-Index: 4
#2Qingbai Wu (CAS: Chinese Academy of Sciences)H-Index: 25
Last. Yingmei Wang (CAS: Chinese Academy of Sciences)H-Index: 3
view all 6 authors...
Gas hydrates formation and dissociation processes inside porous media are always accompanied by water transfer behavior, which is similar to the water behavior of ice freezing and thawing processes. These processes have been studied by many researchers, but all the studies are so far on the water transfer characteristics outside porous media and the water transfer characteristics inside porous media have been little known. In this study, in order to study the water transfer characteristics insid...
9 CitationsSource
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