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南北文化融合维度下的南下题材影视作品的再解读
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作者 李宗刚 滕旋 《河北师范大学学报(哲学社会科学版)》 2022年第2期98-103,共6页
中国革命不仅深刻地改变了中国历史的命运,而且还深刻地改变了个人的命运,促成了中国文化的大融合和大发展。特别是中国解放战争历史上的战士南下现象,这批南下战士在新的文化环境中,其思想与情感也随之发生巨大的变化,由此便演绎出了... 中国革命不仅深刻地改变了中国历史的命运,而且还深刻地改变了个人的命运,促成了中国文化的大融合和大发展。特别是中国解放战争历史上的战士南下现象,这批南下战士在新的文化环境中,其思想与情感也随之发生巨大的变化,由此便演绎出了文化的对抗与贯通、抵牾与融合的历史发展轨迹。南下战士从北方到南方的历程使得其人生场域发生了变化,同时在宏观层面也实现了南北方文化的交融互动,尽管这种融汇的过程较为艰难。从这样的维度加以审视,我们便会发现南下题材影视作品依然还具有无限的表现空间,尤其是当我们将它置于南北文化交汇这一聚焦点上加以透视时,则会对中国革命的文化意义获得更为清晰的认识。 展开更多
关键词 南下题材影视作品 《风雨下钟山》 《阙里人家》 《南下》 《沂蒙》
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南下打工记事
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作者 李华战 《小康生活》 2005年第4期71-71,共1页
大专毕业在家呆了半年,工作还是没有着落,我的心情也随之变得十分焦躁不安。上学的学费都是从信用社贷来的,弟弟妹妹正上高中,家里已经债台高筑,父亲的身体又很衰弱,干不了重的体力活,全家的希望都在我身上。春节的喜庆还没散尽... 大专毕业在家呆了半年,工作还是没有着落,我的心情也随之变得十分焦躁不安。上学的学费都是从信用社贷来的,弟弟妹妹正上高中,家里已经债台高筑,父亲的身体又很衰弱,干不了重的体力活,全家的希望都在我身上。春节的喜庆还没散尽,我不顾父母的百般阻挠和反对,决定南下广东深圳去寻找我人生新的港湾。 展开更多
关键词 中国 当代 散文 文学作品 《南下打工记事》 李华战
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粤港澳大湾区科技园地域性设计研究综述
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作者 王明洁 邓珺 向科 《建筑与文化》 2024年第10期59-61,共3页
文章综述了大湾区科技园地域性设计的理论研究进展;基于科技园地域性设计实践分类标准,对案例的类型及特点进行梳理;提出研究展望,以期为我国高质量发展背景下科技园的地域性设计提供参考。
关键词 粤港澳大湾区 科技园 地域性设计 研究综述
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Distribution of ice thickness and subglacial topography of the "Chinese Wall" around Kunlun Station,East Antarctica 被引量:1
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作者 崔祥斌 孙波 +1 位作者 苏小岗 郭井学 《Applied Geophysics》 SCIE CSCD 2016年第1期209-216,223,共9页
As fundamental parameters of the Antarctic Ice Sheet,ice thickness and subglacial topography are critical factors for studying the basal conditions and mass balance in Antarctica.During CHINARE 24(the 24 th Chinese N... As fundamental parameters of the Antarctic Ice Sheet,ice thickness and subglacial topography are critical factors for studying the basal conditions and mass balance in Antarctica.During CHINARE 24(the 24 th Chinese National Antarctic Research Expedition,2007/08),the research team used a deep ice-penetrating radar system to measure the ice thickness and subglacial topography of the "Chinese Wall" around Kunlun Station,East Antarctica.Preliminary results show that the ice thickness varies mostly from 1600 m to 2800 m along the "Chinese Wall",with the thickest ice being 3444 m,and the thinnest ice 1255 m.The average bedrock elevation is 1722 m,while the minimum is just 604 m.Compared with the northern side of the ice divide,the ice thickness is a little greater and the subglacial topography lower on the southern side,which is also characterized by four deep valleys.We found no basal freeze-on ice in the Gamburtsev Subglacial Mountains area,subglacial lakes,or water bodies along the "Chinese Wall".Ice thickness and subglacial topography data extracted from the Bedmap 2 database along the "Chinese Wall" are consistent with our results,but their resolution and accuracy are very limited in areas where the bedrock fluctuates intensely.The distribution of ice thickness and subglacial topography detected by ice-penetrating radar clarifies the features of the ice sheet in this "inaccessible" region.These results will help to advance the study of ice sheet dynamics and the determination of future locations of the GSM's geological and deep ice core drilling sites in the Dome A region. 展开更多
关键词 Antarctic Ice sheet Kunlun Station Ice thickness Subglacial topography Icepenetrating radar
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Vegetation Influence Investigation of GangnanHuangbizhuang Reservoir Downstream River and Recovery Strategies
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作者 张茹春 郑振华 +1 位作者 崔建军 张韬 《Agricultural Science & Technology》 CAS 2015年第11期2552-2554,共3页
The research selected three typical areas for plant investigation, including upper reaches of Gangnan Reservoir, the area between Gangnan and downstream of Huangbizhuang Reservoir, and Huangbizhuang Reservoir. The res... The research selected three typical areas for plant investigation, including upper reaches of Gangnan Reservoir, the area between Gangnan and downstream of Huangbizhuang Reservoir, and Huangbizhuang Reservoir. The results showed that affected by water, plant species, species diversity and species richness were all decreasing in varying degrees as the distance with watercourse upper reaches was increasing, but the ratio of Anthropochory plants was growing. The research finally proposed countermeasures, including increasing wetland area, constructing forests and artificial water landscape of Hutuo River and reinforcing watercourse compre- hensive management. 展开更多
关键词 The reservoir downstream river VEGETATION Gangnan-Huangbizhuangreservoir Vegetation restoration
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A Study on Snowstorm Weather in Coastal Area of Western Antarctic 被引量:3
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作者 黄耀荣 薛振和 许淙 《Marine Science Bulletin》 CAS 2003年第1期24-31,共8页
In this paper, based on the observational data of 1995 in the Chinese Antarctic Great Wall Station the snowstorm is studied synoptically. It is found that there are two kinds of snowstorms with different physical char... In this paper, based on the observational data of 1995 in the Chinese Antarctic Great Wall Station the snowstorm is studied synoptically. It is found that there are two kinds of snowstorms with different physical characteristics and that the happening of snowstorm is always accompanied by a near-ground level inversion layer. The function of the inversion layer is analyzed, too. It is indicated that the strong ESE-wind type snowstorm is mainly caused by katabatic wind and gradient wind together. This idea is new and different from the general concept that there is no katabatic wind in the western Antarctic area. 展开更多
关键词 Coastal area of west Antarctic snowstorm weather inversion layer
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Sedimentary system characteristics and depositional filling model of Upper Permian——Lower Triassic in South Yellow Sea Basin 被引量:6
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作者 YUAN Yong CHEN Jian-wen +3 位作者 ZHANG Yin-g ZHANG Yu-xi LIANG Jie ZHANG Peng-hui 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第12期2910-2928,共19页
In the South Yellow Sea Basin,Mesozoic–Paleozoic marine strata are generally well developed with large thickness,and no substantial breakthroughs have been made in hydrocarbon exploration.Through research,it is belie... In the South Yellow Sea Basin,Mesozoic–Paleozoic marine strata are generally well developed with large thickness,and no substantial breakthroughs have been made in hydrocarbon exploration.Through research,it is believed that the Upper Permian–Lower Triassic can be regarded as a long-term base-level cycle.Based on drilling data,characteristics of the lithology–electric property combination cyclicity,and the special lithology,the long-term base-level cycle was divided into five medium-term base-level cycles(MC1–MC5).On this basis,the Permian–Triassic sedimentary systems and their filling model were analyzed in accordance with the change of base-level cycle and transition of sedimentary environment,as well as characteristics of the drilling sedimentary facies and seismic facies.The results show that there were six sedimentary systems(fluvial,delta,tidal flat,open platform,restricted platform,and continental shelf)developed in the Upper Permian–Lower Triassic,the sedimentary systems were distributed such that the water was deep in the northwest and shallow in the southeast,and there were two base-level cycle filling models(a relatively stable tidal flat facies and a rapidly transgressive continental shelf facies to stable platform facies)developed in the Upper Permian–Lower Triassic.These models can provide a basis for evaluation of the Mesozoic–Paleozoic hydrocarbon geology in the South Yellow Sea Basin. 展开更多
关键词 sequence base-level cycle sedimentary system depositional filling model Upper Permian–Lower Triassic South Yellow Sea Basin
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Modeling underwater transport of oil spilled from deepwater area in the South China Sea 被引量:1
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作者 陈海波 安伟 +3 位作者 尤云祥 雷方辉 赵宇鹏 李建伟 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2016年第1期245-263,共19页
Based on a Lagrangian integral technique and Lagrangian particle-tracking technique,a numerical model was developed to simulate the underwater transport of oil from a deepwater spill. This model comprises two submodel... Based on a Lagrangian integral technique and Lagrangian particle-tracking technique,a numerical model was developed to simulate the underwater transport of oil from a deepwater spill. This model comprises two submodels: a plume dynamics model and an advection-diffusion model. The former is used to simulate the stages dominated by the initial jet momentum and plume buoyancy of the spilled oil,while the latter is used to simulate the stage dominated by the ambient current and turbulence. The model validity was verified through comparisons of the model predictions with experimental data from several laboratory flume experiments and a field experiment. To demonstrate the capability of the model further,it was applied to the simulation of a hypothetical oil spill occurring at the seabed of a deepwater oil/gas field in the South China Sea. The results of the simulation would be useful for contingency planning with regard to the emergency response to an underwater oil spill. 展开更多
关键词 underwater oil spill numerical simulation contingency planning deepwater oil/gas field South China Sea
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Diagenetic evolution and its effect on reservoir-quality of fan delta sandstones during progressive burial: Evidence from the upper part of the fourth member of Shahejie formation, Bonan sag, Jiyang depression 被引量:3
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作者 马奔奔 操应长 +2 位作者 王艳忠 张少敏 贾艳聪 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第8期3042-3058,共17页
Petrographic analysis combined with various techniques, such as thin section identification, fluid inclusions, isotopic data, petro-physical property testing and oil testing results, was used to study diagenetic evolu... Petrographic analysis combined with various techniques, such as thin section identification, fluid inclusions, isotopic data, petro-physical property testing and oil testing results, was used to study diagenetic evolution and its effect on reservoir-quality of fan delta reservoirs of Es4s in the Bonan sag. The diagenesis is principally characterized by strong compaction, undercompaction, multi-phase of dissolution and cementation. Compaction played a more important role than cementation in destroying the primary porosity of the sandstones. The reservoirs have experienced complicated diagenetic environment evolution of "weak alkalineacid-alkalinity-acid-weak alkalinity" and two-stage of hydrocarbon filling. The diagenetic sequences are summarized as "early compaction/early pyrite/gypsum/calcite/dolomite cementation→feldspar dissolution/the first stage of quartz overgrowth → early hydrocarbon filling→quartz dissolution/anhydrite/Fe-carbonate cementation→Fe-carbonate dissolution/feldspar dissolution/ the second stage of quartz overgrowth→later hydrocarbon filling→later pyrite cementation. In the same diagenetic context, the diagenetic evolution processes that occurred in different sub/micro-facies during progressive burial have resulted in heterogeneous reservoir properties and oiliness. The braided channel reservoirs in fan delta plain are poorly sorted with high matrix contents. The physical properties decrease continually due to the principally strong compaction and weak dissolution. The present properties of braided channel reservoirs are extremely poor, which is evidenced by few oil layers developed in relatively shallow strata while dry layers entirely in deep. The reservoirs both in the underwater distributary channels and mouth bars are well sorted and have a strong ability to resist compaction. Abundant pores are developed in medium-deep strata because of modifications by two-stage of acidic dissolution and hydrocarbon filling. The present properties are relatively well both in the underwater distributary channels and mouth bars and plenty of oil layers are developed in different burial depth. The present reservoir properties both in interdistributary channel and pre-fan delta are poor caused by extensively cementation. Small amounts of oil layers, oil-water layers and oil-bearing layers are developed in relatively shallow strata while dry layers totally in deep. 展开更多
关键词 diagenetic evolution deep strata fan delta Es4s Bonan sag
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Water Resource Management in the Intermountain Izeh Plain,Southwest of Iran 被引量:1
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作者 Kalantari.N Pawar.N.J Keshavarzi.M.R 《Journal of Mountain Science》 SCIE CSCD 2009年第1期25-41,共17页
Ever growing demand for water for agricultural activities in the Izeh Plain has enhanced the use of groundwater. Due to enormous groundwater abstraction since 1985, the overall static water level has receded by more t... Ever growing demand for water for agricultural activities in the Izeh Plain has enhanced the use of groundwater. Due to enormous groundwater abstraction since 1985, the overall static water level has receded by more than 5 meters reflecting that the aquifer is under stress condition. As a result, interest is focused on application of artificial recharge as an option for groundwater management to augment water supply in this area. Therefore, in the present investigations, suitable sites for artificial recharge were selected by an integrated surface and sub-surface assessment of the area. On the basis of the data collected from four target points, it was realized that the selected sites for artificial recharge could not meet water demand of the area. In this study attention was also paid to utilization of the existing Miangran Lake water as an alternative to combat water shortage for irrigation. The study further indicated that the available Miangran Lake water could be used for irrigation of the reclaimed agricultural land and enabling to convert 20o0 hectares of rain-fed land into irrigation. The total cost to utilize lake water is US$ 2,756,729 and it was estimated that the project could recoup the investment within 5 years which is quite reasonable in this water scarcity prone area. 展开更多
关键词 Artificial recharge STREAM MiangranLake GROUNDWATER Izeh Plain
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Measurement of shear movements in the overburden strata ahead of longwall mining 被引量:4
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作者 Mills K.W. GarrattO. +3 位作者 Blacka B.G. Daigle L.C. Rippon A.C. Walker R.J. 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第1期97-102,共6页
An underground coal mine located in New South Wales has a target coal seam located 160-180 m deep directly below a 16-20 m thick conglomerate unit that has been associated with significant periodic weighting events on... An underground coal mine located in New South Wales has a target coal seam located 160-180 m deep directly below a 16-20 m thick conglomerate unit that has been associated with significant periodic weighting events on the Iongwall face. As part of the investigations to better understand the causes of periodic weighting at the mine. inclinometers capable of measuring horizontal shear movements through the full section of the overburden strata were installed ahead of mining at two locations approximately 1 km apart above the centre of two iongwall panels. These inclinometers were monitored as the longwall approached each site. This paper presents the details of the installation, the results of the inclinometer monitoring at both sites, and the insights that these measurements provide for overburden behaviour about longwall panels. Horizontal shear movements were observed to develop on shear horizons that correlate closely across the two sites suggesting a mechanism that is consistent across a large area of the mine. Shear movements were observed to develop on a single horizon near the top of the conglomerate strata that was mobilised almost immediately after initial formation of the longwall goal at a distance of 425 m ahead of the longwall face. 展开更多
关键词 Horizontal shearLongwallOverburdenInclinometer monitoring
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Geochemistry of lower Silurian shale of Longmaxi Formation,southeastern Sichuan Basin,China:Implications for provenance and source weathering 被引量:3
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作者 郭岭 贾超超 杜伟 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第3期669-676,共8页
Lower Silurian Longmaxi Shale(SLS) in southeastern Sichuan Basin, China, was analyzed for major and selected trace elements, and their provenance, intensity of palaeoweathering of the source rocks were analyzed based ... Lower Silurian Longmaxi Shale(SLS) in southeastern Sichuan Basin, China, was analyzed for major and selected trace elements, and their provenance, intensity of palaeoweathering of the source rocks were analyzed based on these elements. The results show that SiO_2, Al_2O_3 and Fe_2O_3, are dominant major elements with average contents of 60.59%, 15.91% and 5.87% in Upper Silurian Longmaxi Shale(USLS), and 65.14%, 13.24% and 4.68% in Lower Silurian Longmaxi Shale(LSLS). The TiO_2-Zr plot, Hf(ppm) versus La/Th discriminant diagram, and abundance of Cr and Ni suggest a dominantly felsic source for the Longmaxi sediments. Average chemical index of alteration(CIA), plagioclase index of alteration(PIA) values(64.05% and 72.86%, respectively) imply low-degree chemical weathering of the source material in early Longmaxi time, and average CIA, PIA values(68.44% and 80.35%, respectively) imply moderate chemical weathering of the source material in late Longmaxi time. 展开更多
关键词 trace elements black shale PROVENANCE WEATHERING discriminant diagrams Sichuan Basin
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Analysis of Aquifer Characteristics and Groundwater Quality in Southwest Punjab, India
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作者 Rajinder Pal Singh Chopra Gopal Krishan 《Journal of Earth Science and Engineering》 2014年第10期597-604,共8页
A study was conducted in eight districts, viz., Faridkot, Moga, Ferozepur, Muktsar, Bathinda, Mansa, Barnala and Sangrur in south-western part of the Punjab, India to characterize aquifer strata by preparing a fence d... A study was conducted in eight districts, viz., Faridkot, Moga, Ferozepur, Muktsar, Bathinda, Mansa, Barnala and Sangrur in south-western part of the Punjab, India to characterize aquifer strata by preparing a fence diagram depicting sub-surface strata and distribution of groundwater quality. The sub-surface lithology drilled upto a depth of 60 m reveal the presence of top most layer of impervious strata comprising of clay upto the depth of 2 m to 5 m which impedes the percolation of surface runoff into the soil leading to surface flooding and water logging even in areas having saturated zone beyond the depth of 5 m. Thick pervious strata of 45 m to 50 m thickness is encountered in central and south-sentral part of the study area comprising of Bathinda, Muktsar and Mansa districts which at certain places are separated by one or two thin layers of impervious or semi-pervious strata comprising of clay and sand occasionally associated with "kankar" of thickness ranging between 2 m to 5 m. The northern, western and eastern parts, however, exhibit three to four layered pervious zones ranging in thickness from 5 m to 25 m separated by thin layers of impervious and semi pervious strata. The groundwater quality in about 6% of the study area in eight districts is fit, 18% is marginal and 76% is unfit for irrigation purpose. 展开更多
关键词 GROUNDWATER aquifer characteristics QUALITY DEPTH southwest Punjab.
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Biological Community in Submerged Caves and Marine Lakes in ha Long-Cat Ba Area, Vietnam
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作者 Nguyen Dang Ngai Dau Van Thao +4 位作者 Do Cong Thung Le Thi Thuy Dam Duc Tien Nguyen Van Quan PhamVan Chien 《Journal of Life Sciences》 2015年第11期541-548,共8页
Submerged caves and marine lakes are two iconic and common ecosystems in Ha Long-Cat Ba area. However, their biological characteristics are poorly known since very limited studies have been conducted, The aim of this ... Submerged caves and marine lakes are two iconic and common ecosystems in Ha Long-Cat Ba area. However, their biological characteristics are poorly known since very limited studies have been conducted, The aim of this study was to investigate biodiversity in these ecosystems. Three submerged caves (Hang Sang, Hang Toi and Qua Bang) and three marine lakes (Dau Be, Ang Du and Qua Bang) were chosen for study. The results showed that organism communities in submerged caves were abundant with over 142 species found. The popular groups comprised sponge and soft coral which were distributed along the length of the caves. Several species with high economic value were widespread in the caves, including stone crab Myomenippe hardwickii, flower crab Portunus pelagicus, cone snails Trochus pyramis, shoemaker spinefoot Siganus sutor, snapper Lutjanus russellii. Species that permanently live in caves were not detected. In the lakes where water is well exchanged to the sea, coral reefs were found and they usually formed a narrow band around the lakes. Sandy beaches were often observed around the lakes at the depths of 0.5-2 m, containing specialty species as clam (Sanguinolaria diphos), snout otter clam (Lutraria rhychaena), sea cucumbers with high density (in Dau Be, Qua Bang). There was no coral reef in the enclosed lake (Ang Du) because of low salinity. 展开更多
关键词 KARST HABITAT biodiversity ORGANISM environment.
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The Co-seismic Response of Underground Fluid in Yunnan to the Nepal MS8.1 Earthquake
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作者 Zhang Li Su Youjin +2 位作者 Luo Ruijie Gao Wenfei Zhang Ping 《Earthquake Research in China》 CSCD 2017年第2期201-212,共12页
In this paper,statistics are taken on the co-seismic response of underground fluid in Yunnan to the Nepal M_S8. 1 earthquake,and the co-seismic response characteristics of the water level and water temperature are ana... In this paper,statistics are taken on the co-seismic response of underground fluid in Yunnan to the Nepal M_S8. 1 earthquake,and the co-seismic response characteristics of the water level and water temperature are analyzed and summarized with the digital data. The results show that the Nepal M_S8. 1 earthquake had greater impact on the Yunnan region,and the macro and micro dynamics of fluids showed significant co-seismic response. The earthquake recording capacity of water level and temperature measurement is significantly higher than that of water radon and water quality to this large earthquake; the maximum amplitude and duration of co-seismic response of water level and water temperature vary greatly in different wells. The changing forms are dominated by fluctuation and step rise in water level,and a rising or falling restoration in water temperature. From the records of the main shock and the maximum strong aftershock,we can see that the greater magnitude of earthquake,the higher ratio of the occurrence of co-seismic response,and in the same well,the larger the response amplitude,as well as the longer the duration. The amplitude and duration of co-seismic response recorded by different instruments in a same well are different. Water temperature co-seismic response almost occurred in wells with water level response,indicating that the well water level and water temperature are closely related in co-seismic response,and the well water temperature seismic response was caused mainly by well water level seismic response. 展开更多
关键词 Nepal Ms8. 1 earthquake Underground fluid in Yunnan Co-seismic response Well water level Water temperature Digital observations Step change Fluctuation
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The Impact of the South Asia High Bimodality on the Chemical Composition of the Upper Troposphere and Lower Stratosphere 被引量:14
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作者 YAN Ren-Chang BIAN Jian-Chun FAN Qiu-Jun 《Atmospheric and Oceanic Science Letters》 2011年第4期229-234,共6页
The South Asia High (SAH) is the dominant feature of the circulation in the upper troposphere and lower stratosphere (UTLS) during the boreal summer, and the upper tropospheric anticyclonic circulation extends int... The South Asia High (SAH) is the dominant feature of the circulation in the upper troposphere and lower stratosphere (UTLS) during the boreal summer, and the upper tropospheric anticyclonic circulation extends into the lower stratosphere. The preferred locations of the center of the SAH occur in two different regions, and the center can be located over the Iranian Plateau or over the Tibetan Plateau. This bimodality has an impact on the distribution of chemical constituents in the UTLS region. We analyzed water vapor (H20), carbon monoxide (CO), and ozone (03) data derived from the Aura Microwave Limb Sounder (MLS) and total column ozone data from the Ozone Monitoring Instrument (OMI). For the Iranian Plateau mode of the SAH, the tropospheric tracers exhibited a positive anomaly over the Iranian Plateau and a negative anomaly over the Tibetan Plateau, whereas the stratospheric tracer exhibited a negative and a positive anomaly over the Iranian Plateau and the Tibetan Plateau, respectively. For the Tibetan Plateau mode, however, the distribution of the anomaly was the reverse of that found for the chemical species in the UTLS region. Furthermore, the locations of the extrema within the anomaly seemed to differ across chemical species. The anomaly extrema for H20 occurred in the vicinity of the SAH ridgeline, whereas CO and O3 exhibited a northward shift of 4-8 degrees. These impacts of the variation in the SAH on the chemical constitutes in the UTLS region can be attributed in part to the dynamical structure delineated by the tropopause field and the temperature field at 100 hPa. 展开更多
关键词 SAH UTLS chemical composition BIMODALITY
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Study on Establishing a Monitoring System for Groundwater in the Condition of Climate Change and Sea Level Rise: Case Study of Ma River Basin in Vietnam
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作者 Doan Van Long Nguyen Minh Khuyen Bui Cong Du 《Journal of Environmental Science and Engineering(B)》 2015年第9期459-469,共11页
The results presented in this paper are a part of the research results of the thesis "research on scientific basis and practice of develop a system of monitoring the impacts of climate change on surface water and gro... The results presented in this paper are a part of the research results of the thesis "research on scientific basis and practice of develop a system of monitoring the impacts of climate change on surface water and groundwater". Case study: Ma river basin in Vietnam. The results were implemented: (i) data collection, fieldwork survey, synthesis and analysis of information and data; (ii) partitioning the influence degree of climate change and sea level rise to groundwater; (iii) determining criteria to select monitoring routes, location of monitoring groundwater in the condition of climate change and sea level rise and (iv) developing the monitoring system. The research's results have practical implications for the water resources management in the context of climate change and sea level rise in Ma river basin. 展开更多
关键词 Groundwater monitoring system climate change sea level rise.
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Assessment of Groundwater Recharge from Rainfall in the Plain of Cai Phan Rang, Vietnam
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作者 Chau Tran Vinh Nguyen Minh Khuyen Nguyen Hong Hieu Doan Van Long Nguyen Tien Bach Trinh ThiThu Van 《Journal of Environmental Science and Engineering(A)》 2014年第3期141-149,共9页
This paper presents the quantitative assessment results of rainwater supply to groundwater in Cai Phan Rang River basin, Ninh Thuan province, Vietnam. In order to obtain the results, the authors developed two experime... This paper presents the quantitative assessment results of rainwater supply to groundwater in Cai Phan Rang River basin, Ninh Thuan province, Vietnam. In order to obtain the results, the authors developed two experimental areas with 10 wells which were monitored in one year to assess the infiltration supply of rainwater to groundwater. The results of this research assessed the amount of rainwater infiltrates into groundwater varies from 307.16-314.98 tam·year^-1, average is 311 mm·year^-1. The findings are significant in terms of science which identify sources of groundwater storage from the infiltration supply of rainwater. The findings are also practical in suggesting measures to reserve groundwater for the purpose of socio-economic development in the study area. 展开更多
关键词 Groundwater recharge rainwater infiltration rainwater infiltration into groundwater.
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Intercomparison of the South Asian High in NCEP1, NCEP2, and ERA-40 Reanalyses and in Station Observations 被引量:1
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作者 FU Jian-Jian LI Shuanglin 《Atmospheric and Oceanic Science Letters》 2012年第3期189-194,共6页
The South Asian Highs (SAHs) at 100 hPa over China in the three reanalysis datasets NCEP1, NCEP2, and ERA-40 are evaluated by using station observation data. The results demonstrate a substantial discrepancy even betw... The South Asian Highs (SAHs) at 100 hPa over China in the three reanalysis datasets NCEP1, NCEP2, and ERA-40 are evaluated by using station observation data. The results demonstrate a substantial discrepancy even between the reanalyses. First, the data of the three reanalyses generally underestimate the intensity of the SAH in the China domain. Second, there are interdecadal changes in the SAH, with highs in the 1960s and 1980s and lows in the 1970s, 1990s, and 2000s. This interdecadal variation of the SAH can be well depicted with NCEP1 data, but the high in the 1980s is missed by ERA-40. The NCEP2 corresponds well with NCEP 1 and captures the decreasing trend after 1979. Furthermore, the NCEP1 reanalysis overestimates the interdecadal changes of SAH, while ERA-40 underestimates the interdecadal changes. This work suggests that much caution should be exerted when the reanalysis datasets are adopted to study the interdecadal variability of SAH. 展开更多
关键词 South Asian High interdecadal change reanalysis datasets station observation
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Genesis and Quality of Groundwater in the Southeastern Region of Southern Vietnam
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作者 Chau Tran Vinh Tran Hong Thai +5 位作者 Doan Van Canh Dang Due Nhan Nguyen Cao Huan Nguyen Van Nghia Nguyen Hong Hieu Trinh Thi Thu Van 《Journal of Environmental Science and Engineering(A)》 2017年第6期277-292,共16页
The origin and quality of groundwater in the Southeastern region (belongs to Southern Plain) were identified by using isotopic techniques and geochemical analysis. Groundwater samples were collected from 7 aquifers... The origin and quality of groundwater in the Southeastern region (belongs to Southern Plain) were identified by using isotopic techniques and geochemical analysis. Groundwater samples were collected from 7 aquifers: the Holocene, upper Pleistocene, middle Pleistocene, lower Pleistocene, upper Pliocene, middle Pliocene and Miocene aquifers. The water isotopic compositions (82H and 8180) were determined to elucidate the origin and the interaction between surface water and groundwater studies. Transit time (age) of the groundwater samples was determined to explain the direction of groundwater flow. The dating techniques included 3H and ^14C isotopes measurement, followed by a correction for the initial ^14C-activity by the ^13C-composition (^13C) in TDIC (Total Dissolved Inorganic Carbon). Geochemical parameters of the groundwater samples were measured either directly in the field or in the laboratory. The results showed that the groundwater from the Holocene and upper Pleistocene aquifers was most recharged from the local meteorological and hydrological systems, including local precipitation, fiver and reservoirs. Thus, it has short transit time and its stable isotopic composition is spread around the local meteoric waterline and lines for rivers or reservoirs water. The groundwater in the deeper aquifers: middle and lower Pleistocene, and Neogene aquifers has old age up to 22.5 ka BP. Its water seems to be recharged from the areas with an altitude from 600 to 700 m higher to the Neogene deposit layer altitude. The groundwater in the SE SP (South-Eastern Southern Plain) region has a high quality. The water type is Na-Ca-Mg-HCO3 with low content of chloride and TDS (Total Dissolved Solids). Calcite/dolomite and gypsum dissolution, organic matter decomposition and sequence of red-ox reactions proceeding through different electron acceptors sediment were controlled the chemistry of the groundwater in the study region. 展开更多
关键词 Water isotopic composition ^14C-dating GROUNDWATER South-Eastern Southern Plain region Vietnam.
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