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| 1 | The Y.D.and climate abrupt events in the early and middle Holocene:Stalagmite oxygen isotope record from Maolan,Guizhou,China显示文摘The isotope records which range from 3.9 kaBP to 15.7 kaBP with an average resolution of 90 a have been obtained from 45 cm to 193.6 cm of the upper part of D4 stalagmite from Dongguo Cave in Libo, Guizhou, by using system TIMS U-series dating and carbon and oxygen stable isotope analyses.The study indicates that the last cold event, the YD (Younger Dryas) event, of the last glacial period was apparently shown in D4 record, which started from 12.80 kaBP and ended in 11.58 kaBP, with a great range of drop in temperature. The end of the last glacial period was consistent with the termination I in oceanic isotope records and was with time limit of 11.3 kaBP. The three most distinct cold events in the early and middle Holocene occurred respectively in 10.91 kaBP, 8.27 kaBP and 4.75 kaBP, with a range of drop in tem- perature reaching 2—5℃. The climate abrupt events in thousand and hundred years scale re- corded in stalagmite δ O can be compared to those in GISP2 ice cores from Greenland in their 18 happening time and the range of their lasting time. The cold events in 8.27 kaBP and 4.75 kaBP can also be compared to CC3 stalagmite records in Ireland, which indicate that climate changes of short range in China monsoon areas, western Europe and polar regions, have the same driv- ing factor. This has a global significance. In addition, the trend of record curves in some time- stages is apparently different, which reflects probably the difference between environment in monsoon climate areas and in polar regions. | QIN Jiaming1, YUAN Daoxian1, CHENG Hai2, LIN Yushi1, ZHANG Meiliang1, WANG Fuxing1, R. L. Edwards2, WANG Hua1 & RAN Jingcheng3 1. The Karst Dynamic Laboratory, IKG, CAGS, Guilin 541004, China 2. Geology and Geophysics Department, Minnesota University, MN55455, USA 3. The Management of Maolan National Nature Reserve, Libo 558400, China | 2005 | Science China Earth Sciences2005，48，4： | 23 |
| 2 | The δ^(18)O variation of a stalagmite from Qixing Cave,Guizhou Province and indi-cated climate change during the Holocene显示文摘A stalagmite from Qixing Cave, Guizhou Province was dated with the TIMS U-series method and its oxygen isotope composition was analyzed. On the basis of the ages and the variations of the δ18O of the stalagmite, the climate change of the last 7.7 ka has been reconstructed in this area: 7.7-5.8 ka, summer monsoon maximum period; 5.8-3.8 ka summer monsoon weakening period; 3.8-0.15 ka, weakened summer monsoon and high amplitude climate fluctuations period. We put forward that the increasing trend of δ18O of the stalagmite reflected not only the weakening of the summer monsoon, which was caused by the decreasing of solar radiation in the Northern Hemisphere, but also the possibly decreasing contribution of the southwest monsoon to the rainfall of this area. These results are consistent with the output of the numerical climate-model modeling. The high amplitude fluctuation of the δ18O may imply the quick shift of the contributions of different moisture sources to the precipitation in this area. | CAI Yanjun, ZHANG Meiliang, PENG Zicheng, LIN Yushi, AN Zhisheng, ZHANG Zhaofeng & CAO YunningState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710054, China Karst Dynamics Laboratory, Ministry of Land and Resources, Guilin 541003, China Department of Earth and Space Science, University of Science & Technology of China, Hefei 230023, China | 2001 | Chinese Science Bulletin2001，46，22： | 18 |
| 3 | High-resolution climate variability of southwest China during 57―70 ka reflected in a stalagmite δ^(18)O record from Xinya Cave显示文摘A 26-cm-long stalagmite (XY2) from Xinya Cave in northeastern Chongqing of China has been ICP-MS 230Th/U dated, showing a depositional hiatus at 2.3 cm depth from the top. The growth of the 2.3―26 cm interval determined by four dates was between 57 ka and 70 ka, with a linear growth rate of 0.023 mm/a. We have analyzed 190 samples for δ 18O and δ 13C, mostly in the 2.3―26 cm part. The δ 18O and δ 13C values between 57 ka and 70 ka reveal decadal-to-centennial climatic variability during the glacial in-terval of Marine Isotope Stage 4 (MIS4), exhibiting much higher resolution than that of the published Hulu and Dongge records during this interval. Speleothem δ 18O in eastern China, including our study area can be used as a proxy of summer monsoon strength, with lighter values pointing to stronger summer monsoon and higher precipitation, and vice versa. Two decreases in the δ 18O signature of XY2 record around 59.5 and 64.5 Ka are argued to correspond to the Dansgaard-Oeschger (D-O) events 17 and 18 respectively. The Heinrich event 6 (H6) can be identified in the record as a heavy δ 18O peak around 60 ka, indicating significant weakening of the monsoon in Chongqing during the cold period. The XY2 δ 18O record shows very rapid change toward to the interstadial condition of the D-O event, but more gradual change toward to the cold stadial condition. This phenomenon found in the Greenland ice core records is rarely observed so clearly in previously published speleothem records. According to SPECMAP δ 18O record, the glacial maximum of MIS 4 was around 64.5 ka with the boundary of MIS 3/4 around 60 ka. Unlike the marine record, the speleothem record of XY2, China, exhibits much high fre-quency variations without an apparent glacial maximum during MIS 4. However, the timing of MIS 3/4 boundary seems to be around 60 ka when the H6 terminated, in agreement with the marine chronology. The growth period of sample XY2 during glacial times probably reflects a local karstic routing of water, rather than having climatic significance. | LI TingYong1, YUAN DaoXian1,2, LI HongChun1,3 ,YANG Yan2, WANG JianLi1, WANG XinYa1, LI JunYun1, QIN JiaMing2, ZHANG MeiLiang2 & LIN YuShi2 1 College of Geographical Science, Southwest University, Chongqing 400715, China 2 Karst Dynamics Laboratory, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China 3 Department of Earth Sciences, Cheng-Kung University, Tainan 70101, Taiwan, China | 2007 | Science China Earth Sciences2007，50，8： | 14 |
| 4 | 中国北方岩溶含水介质研究显示文摘岩溶含水介质是决定岩溶水文地质系统功能的最基本要素,是水文地质工作者长期关注的问题之一。本文把碳酸盐岩岩石学的现代理论同岩溶学、洞穴学、构造地质学与水文地质学密切结合起来,对碳酸盐岩骨架、岩溶含水空间的微观和宏观介质特征进行了深入的研究,把中国北方岩溶含水介质概化为五种类型。 | Working Group of the Research Project Groundwater Resources in Karst Areas of North China and Prediction, Use and Management of Karst Water in Mine Areas | 1990 | 中国岩溶1990，9，4： | 12 |
| 5 | Reform of Carbonate Rock Subsurface by Crustose Lichens and Its Environmental Significance显示文摘Crustose lichens are distributed extensively in karst areas in Southern China. They can be found on the surface of carbonate rocks. Through biophysical and biochemical processes, crustose lichens reform the subsurface of carbonate rocks and in the meanwhile change their physical and chemical properties: (1) the mechanical strength decreases by 17.04° on average (up to 33.2° ); (2) the chemical solution surface area increases from 28.26% to 75.36% (lichen microholes considered only); and (3) the water-holding capacity is greatly improved. Comparative field experiments between biokarst samples underneath crustose lichens and fresh rock samples with the same composition and texture show that the corrosional rate of carbonate rocks of the former is 1.264-1.643 times higher than that of the latter. Crustose lichens are considered as an activator of the surface corrosion of carbonate rocks. | CAO Jianhua and WANG FuxingInstitute of Karst Geology, Chinese Academy of Geological Sciences, Guilin, Guanxi 541004 Xiao Pinfang Liu Xinzhu | 1998 | Acta Geologica Sinica(English Edition)1998，72，1： | 10 |
| 6 | The record of paleoclimatic change from stalagmites and the determination of termination II in the south of Guizhou Province, China显示文摘A high-resolution climate record from 163.00 kaBP to 113.80 kaBP has been obtained through TIMS-U series dating and carbon and oxygen isotope analysis of the three large stalagmites from two caves in the south of Guizhou Province, China. The record of the oxygen isotopes from the stalagmites reveals that the undulation characteristics between the cooling event of the glacial period and the warming event of the interglacial period in the research area can compare well to those of ice cores, lake sediments, loess and deep sea sediments on the scale of ten-thousand years or millennium time scale. The climate undulation provided by the record of the stalagmites has a coherence with the global changes and a tele-connection to the paleoclimate changes in the north polar region. Our results suggest that the direct dynamics of paleo-monsoon circulation changes reflected in the record of the stalagmites might be caused by changes of the global ice volume, and in turn related to various factors, including the solar radiation strength at the mid-latitudes in the Northern Hemisphere, the southern extension of the ice-rafted event in the North Atlantic, and changes of the equatorial Pacific sea surface temperature at the low-latitudes. Using δ18O values, we have calculated the temperatures and the results show that the temperature difference between the penultimate glacial period (with an average temperature of 8.1℃, and a minimum temperature range from 0.65℃ to -1.43℃ at stage 6 ) and the last interglacial period (with an average temperature of 18.24℃ at sub-stage 5e ) was about 10℃. This temperature difference from the record of the stalagmites corresponds in general to the record temperature variation (about 10℃) of measured ice cores. The climate records from the three stalagmites in the two caves have shown that the circulation strength of the Asian summer monsoon and the winter monsoon in the penultimate glacial period and the last interglacial period had a clear change. With the TIMS-U series method, termination II of the penultimate glacial period has been precisely dated at an age of (129.28±1.10) kaBP for the three stalagmites in the south of Guizhou Province, China. This borderline age represents the beginning of the last interglacial period or the boundary between the Middle Pleistocene and the Late Pleistocene, and corresponds to the beginning age of the last interglacial period shown by the ice cores and in the SPECMAP curve of the marine oxygen isotopes. The chronology determination of termination II is not only of stratigraphic and chronological significance, but also lays an important foundation for discussing the short time scales of climate oscillation and rapidly changing events of paleoclimate in the circulation region of the East Asian monsoon. | ZHANG Meiliang, YUAN Daoxian1, LIN Yushi, CHENG Hai, QIN Jiaming &ZHANG HuilingKarst Dynamics Laboratory, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China Geography Department, Minnesota University, MN 55455, USA Correspondence should be addressed to Zhang Meiliang | 2004 | Science China Earth Sciences2004，47，1： | 9 |
| 7 | Foreword for the special topic “Geological Processes in Carbon Cycle”显示文摘Discussions of the relationship between global climate change and the increase in atmospheric greenhouse gas concentration have attracted public attention to the Earth's carbon cycle. The | YUAN DaoXian Institute of Karst Geology,Chinese Academy of Geological Sciences,Karst Dynamic Laboratory,Ministry of Land and Resources,Guilin 541004,China | 2011 | Chinese Science Bulletin2011，56，35： | 5 |
| 8 | Stable Carbon Isotope Geochemical and Hydrochemical Features in the System of Carbonate-H_2O-CO_2 and Their Implications—Evidence from Several Typical Karst Areas of China显示文摘On the basis of hydrochemical observation and experimental calculation, the features of stable carbon isotope geochemistry in the karst dynamic systems of the Guilin Karst Experimental Site, Huanglong Ravine and Wujiangdu Dam Site are summarized in this study. Furthermore, an attempt has been made to solve several geochemical problems, such as the origin of CO2 in the system, kinetic fractionation of carbon isotopes during calcite deposition, hydrochemistry and formation of tufa, and carbon-14 dating of tufa of hydrothermal origin. The results show that three kinds of karst dynamic system can be distinguished: (1) the shallow system, such as the Guilin Karst Experimental Site, in which soil CO2 provides the an active agent for karst processes; (2) the geothermal system, such as the Huanglong Ravine, in which metamorphic or/ and juvenile CO, is the source of activity for karst; (3) the anthropogenic system, such as the Wujiangdu Dam Site, in which the stable carbon isotope geochemical and hydrochemical | Liu Zaihua, Yuan Daoxian and He Shiyi Institute of Karst Geology, 40 Qixing Rd., Guilin, Guangxi 541004 | 1997 | Acta Geologica Sinica(English Edition)1997，71，4： | 4 |
| 9 | 纳米技术在纺织品上应用的利与弊显示文摘文章介绍了纳米技术为纺织行业带来的利益以及对健康和环境的潜在危险性。纳米技术应用于在纺织品上时要考虑晶体结构的控制,机械性能的提高,抵抗化学品和微生物及阻燃、抗热性能的提高,电学性质、染色力的提高等。文章还对金属氧化物纳米粒子和碳纳米管的毒性、纳米材料的立法进展进行了综述。 | David Karst | 2007 | 纺织导报2007，，2： | 3 |
| 10 | 中国北方寒武—奥陶系岩溶层组类型及其区域变化规律显示文摘本文在大量剖面资料统计的基础上,根据岩层的厚度比例和连续厚度及其组合形式,对我国北方寒武—奥陶系岩溶层组类型进行了划分,着重论述了岩溶层组类型的区域变化规律。为含水层系统的划分和水资源评价及区域岩溶发育规律的研究,提供了重要的基础资料。 | The working Group of the Research on Karst Groundwater-Resources in the North China and Prediction, Utilization and Management of Karst Water in Mine Area | 1991 | 中国岩溶1991，10，2： | 3 |
| 11 | Accessibility evaluation of land-use and transport strategies: review and research directions显示文摘 | Karst T. Geurs Bert van Wee | 2003 | Journal of Transport Geography2003，，2： | 2 |
| 12 | Photosensitive Material Enabling Direct Fabrication of Filigree 3D Silver Microstructures via Laser-Induced Photoreduction显示文摘Dear Editor Laser-induced photoreduction(LPR)as a direct fabrication technique that promises to be one of the most versatile routes for fabricating highly conductive 3D metallic microstructures on-chip(e.g.,metamaterials,electro-mechanical systems,and high-frequency components like antennas). | Erik Hagen Waller Julian Karst Georg von Freymann | 2021 | Light(Advanced Manufacturing)2021，2，2： | 2 |
| 13 | Cloning of an Arabidopsis thaliana cDNA encoding for farnesyl diphophate synthase by functional complementation in yeast 显示文摘 | Delourme D Lacrote F Karst F | 1994 | Plant Mol Biol1994，26，： | 1 |
| 14 | Reaction monitoring of enzyme-catalyzed ester cleavage by time-resolved fluorescence and electrospray mass spectrometry: method development and comparison显示文摘 | Tanja Steinkamp André Liesener Uwe Karst | 2004 | Analytical and Bioanalytical Chemistry2004，，4： | 1 |
| 15 | Optimisation of interdelta analysis for Saccharomyces cerevisiae strain characterization 显示文摘 | LEGRAS J L KARST F | 2003 | FEMS Microbiol Lett2003，221，2： | 1 |
| 16 | Chronic stress: Implications for neuronal morphology, function and neurogenesis 显示文摘 | JoWls M Karst H Kmgers H J | 2007 | Frontiers in Neuroendocrinology2007，28，23： | 1 |
| 17 | Variation of δ^(13)C in karst soil in Yaji Karst Experiment Site, Guilin显示文摘This study deals with δ13C variation in karst soil system of Yaji Karst Experiment Site, Guilin, a typical region of humid subtropical karst formations. Samples of near ground air, plant tissue, soil and water (soil solution and karst spring) were respectively collected on site in different seasons during 1996-1999. Considerable variation of δ13C values are not only found with different carbon pools of soil organic carbon, soil air CO2 and soil water HCO3-, but also with the soil depths and with different seasons during a year. The δ13C values of CO2 both of near ground air and soil air are lower in July than those in April by 1‰-4‰ PDB. Our results indicate that the δ13C values of carbon in the water and air are essentially dependent on interface carbon interaction of air-plant-soil-rock-water governed by soilorganic carbon and soil CO2 in the system. | PAN Genxing, HE Shiyi, CAO Jianhua, TAO Yuxiang & SUN YuhuaCollege of Resource and Environment Science, Nanjing Agricultural University, Nanjing 210095, China Karst Dyanmics Laboratory, Ministry of Land and Resources, Guilin 541004, China | 2002 | Chinese Science Bulletin2002，47，6： | 1 |
| 18 | Acupuncture in chronic epicondylitis: a randomized controlled trial显示文摘 | Fink M Wolkenstein E Karst M | 2002 | Rheumatology2002，41，2： | 1 |
| 19 | Characterization of a lysine-to-glutamic acid mutation in a conservative sequence of farnesyl diphosphate synthase from Saccharomyces cerevisiae 显示文摘 | Blanehard L Karst F | 1993 | Gene1993，125，： | 1 |
| 20 | HPLC-APCI-MS with calibration based on stable isotope-labelled internal standards for the quantification of carbonyls in air samples显示文摘 | ZUREK G LUFTMANN H KARST U | 1999 | Analyst1999，124，9： | 1 |
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