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中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Yanlong Kong zhonghe pang Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences

Understanding the impact of climate change on water resources is essential to sustainable *** River,a medium-size headwater catchment in the Tianshan mountains,was chosen to evaluate the impact of climate change on its discharges,where impacts of human activities on water are negligible and the influence of glacier melt is minor as far as the mountainous outlet is *** of the time series of temperature,precipitation and river discharge of the hydrological station at the mountainous outlet from 1959 to 2006 was carried out using different statistical methods,including linear regression,Mann-Kendall test and wavelet *** both temperature and precipitation show a significant upward trend with a gradient of 0.02 ℃/y and 2.08 mm/y,respectively,there is no significant rising trend in the stream *** reasons are attributed to the hysteresis and buffering effects of groundwater in conveying the change from precipitation to stream *** short periods of less than 8 years exist in the three time series,which is a common trend in NW *** has stronger influence on stream discharge than air temperature throughout the 48 years of instrumental records in the Urumqi River catchment.

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Groundwater recharge and dynamics in northern China implications for sustainable utilization of groundwater

Groundwater recharge and dynamics in northern China implicat...

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中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： Tianming Huang zhonghe pang InstituteofGeologyandGeophysics ChineseAcademyofSciences

This paper reviews diffuse recharge studies in(semi)arid northern China,which are mainly based on environmental tracers of the unsaturated zone(chloride mass balance,natural tritium,artificial trit

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Evaluating the sensitivity of glacier rivers to climate change based on hydrograph separation of discharge

Evaluating the sensitivity of glacier rivers to climate chan...

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中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Yanlong Kong zhonghe pang Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences Graduate School of Chinese Academy of Sciences

The magnitude and variability of water system’s response to climate change impacts have been assessed through a detailed analysis of discharge composition of two selected typical glacier rivers originated from Tianshan Mountains,Xinjiang Uygur Autonomous Region in West China,which is considered as the water tower of Central *** we demonstrate climate change in the last 60 years using meteorological data (1951-2009) in the *** of the temperature and precipitation show a remarkable rise before and after year 1990 and these changes are much more significant in North Xinjiang than it is in South *** of water systems towards climate change is then assessed by comparing annual discharge change of Urumqi River(10.0%) in the North and Kumalak River(38.7%) in South *** found significant inconsistency of the climate change impact on water ***,we quantitatively determine the ratio of ice-melt water using isotope hydrograph separation as well as other conservative *** show that Urumqi River is recharged by less than 9%of ice-melt water,while Kumalak River contains more than 57%of ice-melt water in their *** extent of glacier input to a water system governs its sensitivity towards climate *** method has overwhelming potential for un-gauged watersheds and may offer ways of adaptation to climate change in terms of water resources management for flood control and sustainable agriculture.

关键词： Climate change Discharge change Isotope hydrograph separation Water chemistry Urumqi River Kumalak River

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Environmental isotopes in CO2 geological sequestration

Environmental isotopes in CO2 geological sequestration

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Jie Li zhonghe pang Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of Sciences

Carbon dioxide capture and sequestration(CCS)in deep geological formations has recently emerged as an important option for reducing greenhouse gas(GHG)emissions,and due to the complexity of the issue,CCS has turned into a multiple-discipline research *** isotopes have been used in various CCS projects worldwide for evaluating trapping mechanisms,selecting storage sites,and monitoring for storage *** isotopes are found useful in the investigation of many CCS issues and are particularly effective in identifying phase states(free,dissolved,and mineral state),and in quantifying structural,solubility,and mineral trapping forms of *** used published laboratory results to successfully verify different methods for quantifying structural trapping *** results show that,in short time scales,saturation of the formation with free CO-phase can be obtained from oxygen isotope measurements on CO and/or reservoir brine,and carbon isotope of dissolved inorganic carbon can be used to trace dissolution in *** isotopes and other parameters,such as CO/He ratio,can also be used to confirm the mineral trapping mechanism in natural gas *** isotopes can also be used to distinguish mineralogical composition of formations,and to identify hydrodynamic conditions for site selection in addition to monitor potential CO leakage.

关键词： CO2 geological sequestration environmental isotopes storage mechanism site selection and characterization monitoring

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Quantitative assessment of CO2 storage capacity by using of hydrogeochemical and isotope data for deep saline aquifers

Quantitative assessment of CO2 storage capacity by using of ...

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Yiman Li zhonghe pang Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of Sciences

CO sequestration in deep saline aquifers presents a viable option for CO emissions mitigation while accurate evaluation of CO storage capacity is central to effective site *** methods are mostly based on consideration of trapping mechanisms,which is problematic in accurate determination of the storage efficiency factor and exposes results to considerable *** studies simply adopt DOE figures,which can’t represent diverse geological conditions across the globe.A new geochemical-based method is proposed which considers CO trapping states rather than trapping *** is especially effective for site-scale CO storage capacity calculation with single injection well and a timeframe of a hundred to a thousand *** method considers injected CO trapped in forms of free state and soluble state,but excludes the mineral trapping *** pore volume is calculated based on two simplified models of CO plume within effective affecting radius in which trigonal pyramidal and cylindrical models represent minimum and maximum volume,*** of free CO saturation and the ratio of dissolved inorganic carbonate contributed by CO dissolution are used to calculate effective CO storage capacity in forms of free and soluble state,*** and hydrogeochemical data changes pre-and post-CO injection are used to calculate free COsaturation and ratio of dissolved inorganic carbonate contributed by CO *** simulation with calibration by measured values and calculation of CO consumption per unit weight of rock is suggested to assess CO trapped by mineral state at timeframe of tens of thousands years.

关键词： CO2 storage capacity deep saline aquifers free CO2 saturation oxygen isotope effective affecting radius

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FixAl及同位素方法在EGS返排液研究中的应用

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地学前缘 2020年第1期27卷 112-122页

作者：天娇庞忠和张睿中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室北京100029 中国科学院地球科学研究院北京100029 中国科学院大学北京100049 青岛盟诺学校山东青岛266000

增强地热系统(EGS)是开采低渗透率热岩体中热能的技术,属于广义的地热储工程。其中,作为换热介质被注入岩体并在换热后返回地表的返排液,不仅是岩体地球化学特征的信息载体,而且其物理化学行为直接影响着EGS系统的运行效果。FixAl化学... 详细信息

增强地热系统(EGS)是开采低渗透率热岩体中热能的技术,属于广义的地热储工程。其中,作为换热介质被注入岩体并在换热后返回地表的返排液,不仅是岩体地球化学特征的信息载体,而且其物理化学行为直接影响着EGS系统的运行效果。FixAl化学热力学模拟和水同位素十三线图解在天然水热系统评价中得到了广泛应用,对返排液研究的实用性则是文章的核心问题。文中收集了全球主要EGS项目的返排液资料,基于FixAl方法分析矿物与返排液的化学平衡状态,并计算了流体在深部的热交换温度,用同位素模型验证了EGS系统中原生卤水的驱替过程。研究结果表明,上述方法在EGS返排液研究中是适用的。此外,返排液的化学特征对EGS的指示意义还包括厘定原生卤水在返排液中所占比例,识别岩浆挥发分溶解及储层改造时的添加剂残留,预测结垢趋势和流体腐蚀性等。未来需要通过更多的实验和模拟方法深入研究返排液的化学特征,建立EGS的热-水-力-化学(THMC)耦合模型,为科学开发深层地热能提供依据。

关键词：干热岩增强地热系统返排液化学特征

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AA-CAES系统储能过程运行策略分析

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太阳能学报 2018年第3期39卷 697-703页

作者：韩中合庞永超华北电力大学电站设备状态监测与控制教育部重点实验室

提出滑压运行、定压运行和定．滑运行3种储能过程运行策略，采用热力学方法建立系统模型并对比分析3种运行方式的特点。计算结果表明，在给定的设计参数下，滑压运行方式储能效率最高，定压运行方式储能密度最大；调整储气室压力变化范... 详细信息

提出滑压运行、定压运行和定．滑运行3种储能过程运行策略，采用热力学方法建立系统模型并对比分析3种运行方式的特点。计算结果表明，在给定的设计参数下，滑压运行方式储能效率最高，定压运行方式储能密度最大；调整储气室压力变化范围可提高储能效率，在给定的储气室压力范围内，对于滑压、定压、定．滑运行3种方式储能效率可分别提升21．34％、21．93％、22．17％；压气机效率下降系数对3种运行方式的储能效率有不同影响，随着效率下降系数的提高，滑压和定．滑运行方式的储能效率下降，且定一滑运行方式效率下降更快，而定压运行方式储能效率维持不变，因此，在实际运行中需根据压气机特性确定合适的运行方式。

关键词： AA-CAES 储能过程储能效率运行策略

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Integrated assessment on groundwater nitrate by unsaturated zone probing and aquifer sampling with environmental tracers

Integrated assessment on groundwater nitrate by unsaturated ...

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中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Lijuan Yuan zhonghe pang Tianming Huang Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences

By employing chemical and isotopic tracers(N and O in NO),we investigated the main processes controlling nitrate distribution in the unsaturated zone and *** water was extracted from two soil cores drilled in a typical agricultural cropping area of the North China Plain(NCP),where groundwater was also *** results indicate that evaporation and denitrification are the two major causes of the distribution of nitrate in soil water extracts in the unsaturated *** from unsaturated zone is evidenced by a positive correlation between chloride and nitrate,and denitrification by a strong linear relationship betweenδO and ln(NO/CI).The latter is estimated to account for up to 50%of the nitrate loss from soil *** the saturated zone,nitrate is reduced at varying extents (100 mg/L and 10 mg/L at two sites,respectively),largely by dilution of the aquifer water.

关键词： Soil water nitrate Groundwater nitrate Isotopes Evaporation Denitrification

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Quantifying recycled moisture fraction in precipitation of an arid region using deuterium excess

Quantifying recycled moisture fraction in precipitation of a...

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中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： YANLONG KONG zhonghe pang KLAUS FROEHLICH Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences Viktor-Wittner-Gasse Formerly Isotope Hydrology Section International Atomic Energy Agency

Terrestrial moisture recycling by evapotranspiration has recently been recognised as an important source of precipitation that can be characterised by its isotopic *** to now,this isotope technique has mainly been applied to moisture recycling in some humid regions,including Brazil,Great Lakes in North America and the European *** arid and semi-arid regions,the contribution of transpiration by plants to local moisture recycling can be small,so that evaporation by bare soil and surface water bodies *** that the deuterium excess(d-excess) of evaporated moisture is significantly different from that of the original water,we made an attempt to use this isotopic parameter for estimating moisture recycling in the semi-arid region of Eastern Tianshan,*** measured the d-excess of samples taken from individual precipitation events during a hydrological year from 2003 to 2004 at two Tianshan mountain stations,and we used long-term monthly average values of the d-excess for the station Urumqi,which are available from the International Atomic Energy Agency-World Meteorological Organization(IAEA-WMO) Global Network of Isotopes in Precipitation(GNIP).Since apart from recycling of moisture from the ground, sub-cloud evaporation of falling raindrops also affects the d-excess of precipitation,the measured values had to be corrected for this evaporation *** the selected stations,the sub-cloud evaporation was found to change between 0.1 and 3.8%,and the d-excess decreased linearly with increasing sub-cloud evaporation at about 1.1%0 per 1%change of sub-cloud *** simple mixing between adverted and recycled moisture,the recycled fraction in precipitation has been estimated to be less than 2.0±0.6%for the Tianshan mountain stations and reach values up to 15.0±0.7%in the Urumqi *** article includes a discussion of these findings in the context of water cycling in the studied region.

关键词： deuterium excess moisture recycling sub-cloud evaporation Eastern Tianshan arid region

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Nitrate in groundwater and the unsaturated zone in(semi)arid northern China:baseline and factors controlling its transport and fate

Nitrate in groundwater and the unsaturated zone in(semi)arid...

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中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： Tianming Huang zhonghe pang Lijuan Yuan KeyLaboratoryofEngineeringGeomechanics InstituteofGeologyandGeophysicsChineseAcademyofSciences

Knowledge of the baseline of groundwater nitrate is essential for water quality *** largescale anthropogenic activities,especially utilization of chemical fertilizers began from the 1950s

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