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| 1 | Nitrous oxide (N_2O) emissions from a mesotrophic reservoir on the Wujiang River,southwest China显示文摘Aquatic ecosystems have been identified as a globally significant source of nitrous oxide(N_2O) due to continuous active nitrogen involvement, but the processes and influencing factors that control N_2O production are still poorly understood, especially in reservoirs. For that, monthly N_2O variations were monitored in Dongfeng reservoir(DFR)with a mesotrophic condition. The dissolved N_2O concentration in DFR displayed a distinct spatial–temporal pattern but lower than that in the eutrophic reservoirs. During the whole sampling year, N_2O saturation ranging from 144% to 640%, indicating that reservoir acted as source of atmospheric N_2O. N_2O production is induced by the introduction of nitrogen(NO_3^-, NH_4^+) in mesotrophic reservoirs, and is also affected by oxygen level and water temperature. Nitrification was the predominate process for N_2O production in DFR due to well-oxygenated longitudinal water layers.Mean values of estimated N_2O flux from the air–water interface averaged 0.19 μmol m^(-2)h^(-1) with a range of 0.01–0.61 μmol m^(-2)h^(-1). DFR exhibited less N_2O emission flux than that reported in a nearby eutrophic reservoir, but still acted as a moderate N_2O source compared with other reservoirs and lakes worldwide. Annual emissions from the water–air interface of DFR were estimated to be 0.32×10~5 mol N–N_2O, while N_2O degassing from releasing water behind the dam during power generation was nearly five times greater. Hence, N_2O degassing behind the dam should be taken into account for estimation of N_2O emissions from artificial reservoirs, an omission that historically has probably resulted in underestimates. IPCC methodology should consider more specifically N_2O emission estimation in aquatic ecosystems, especially in reservoirs, the default EF5 model will lead to an overestimation. | Xiaolong Liu Siliang Li Zhongliang Wang Guilin Han Jun Li Baoli Wang Fushun Wang Li Bai | 2017 | Acta Geochimica2017,36,4: | 6 |
| 2 | Sulfuric acid as a weathering agent of carbonate weathering constrained by δ^(13)C: Examples from Southwest China显示文摘 | Siliang LI Jérome Gaillardet Guilin HAN Damien Calmels Congqiang LIU | 2006 | Chinese Journal Of Geochemistry2006,25,B08: | 4 |
| 3 | Characteristics of heavy metals in soils under different land use in a typical karst area, Southwest China显示文摘This study investigated the distribution of six pollutant elements(Cr, Cu, Pb, Zn, Cd, and As), and their relationship to soil organic carbon(SOC) in five soil profiles in the Puding area. Results show SOC content decreased exponentially to the depth of soil profiles; the vertical distribution patterns of SOC in soil profiles were partially controlled by land use. The concentrations of these pollutant elements in most soils were lower than background values, indicating that the local soil was less likely to be contaminated by foreign inputs. Geo-accumulation index values of these elements in most soil samples were less than 1, suggesting that the soil of this area may not be polluted. The concentrations of Cr, Cu, As, and Zn in soils from all land use types were significantly negatively correlated with SOC contents. Geochemical approaches confirmed that the soil of this area was less influenced by pollutant elements. | Yang Tang Guilin Han | 2017 | Acta Geochimica2017,36,3: | 3 |
| 4 | Determination of brominated diphenyl ethers in atmospheric particulate matter using selective pressurized liquid extraction and gas chromatography–mass spectrometry with a negative chemical ionization显示文摘This study describes the development and validation of a sensitive and reliable method for determination of polybrominated diphenyl ethers(PBDEs)in atmospheric particulate matter using selective pressurized liquid extraction(SPLE)and gas chromatography–mass spectrometry with a negative chemical ionization(GC-NCI-MS).Extraction and clean-up were performed using PLE with 2 g florisil and 3 g silica placed in the extraction cells.Under optimal conditions,14 PBDEs were extracted at 70°C using hexane/dichloromethane(50:50,v/v)as solvent.Validation of SPLE returned excellent recoveries for most analytes,with relative standard deviations mostly below20%.Method detection limits ranged from 0.13 to15.38 ngám L^(-1)for the GC-MS analyses.The method was successfully applied to atmospheric particulate matter of Beijing,where analytes were detected in the range of182.79 to 468.99 pgám^(-3). | Qian Zhang Yongxiao Wang Guilin Han Tao Liang | 2017 | Acta Geochimica2017,36,3: | 3 |
| 5 | Accurate and precise determination of lead isotope composition in selected geochemical reference materials显示文摘Lead(Pb)isotopes have been extensively employed in tracing sources of Pb and its transport pathways through the environment.However,Pb isotopic ratios in related geochemical reference materials are scarce.Here,we report high-precision Pb isotopic ratios measured by Nu Plasma II MC-ICP-MS using calibrated ^(205)Tl/^(203)Tl=2.38865(NIST SRM 997)for mass discrimination correction.The long-term external precision(2SD)for NISTSRM 981 of Pb,BCR-2,and BHVO-2 are 0.31‰(n=105),0.42‰(n=11),and 0.25‰(n=5)for ^(208)Pb/ ^(206)Pb and 0.16‰,0.53‰,and 0.07‰for ^(206)Pb/ ^(207)Pb,both respectively,and their Pb isotopic ratios are in excellent agreement with the recommended values.Using this method,we report for the first time Pb isotopic compositions in shale SGR-1b(USGS);coal CLB-1(USGS);stream sediments GSD-17,-21,and-23(IGGE);soils GSS-12,-13,-14,-15,and-16(IGGE);plants GSV-1,-2,and-3(IGGE);and human hair GSH-1(IGGE). | Guangliang Wu Jian-Ming Zhu Decan Tan Guilin Han Lixing Zhang Kun Ren | 2017 | Acta Geochimica2017,36,3: | 3 |
| 6 | New stylophorans(Echinodermata) from the Upper Cambrian of Guangxi,South China显示文摘This paper describes for the first time the cornute stylophorans (Echinodermata) in China. The new material came from the Guole Formation of the Furongian (Late Cambrian) in the Guole area of Jingxi, Guangxi Province, South China. These new cornute specimens are preserved in situ and found along with well-preserved trilobites and brachiopods. One new species, Phyllocystis jingxiensis sp. nov., is proposed to accommodate these unusual materials. The new species is defined by the small, heart-shaped theca with the frame composed of ten narrow, smooth and thick marginal plates, three adoral plates and distinctive zygal and aulacophore. Both supracentrals and infracentrals are polygonal-outlined. The marginal plate M1' on the inferior face extends posteriorly to form zygal that possesses a broadened proximal end and the proximal portion joining with the conjunction between M4 and M5 on the inferior face. Aulacophore comprises ten segments at its proximal part and is conical at the middle part (named stylocone). Its distal portion is rather long and bears conspicuous ambulacrum grooves. Tectals are horizontally arranged on superior face and obliquely arranged on inferior face. Both cothurnopore and anal pyramid are vaguely seen on the right anterior corner and the extremity of theca's superior face. | HAN NaiRen1 & CHEN GuiYing1,2 1 Department of Resources and Environmental Engineering, Guilin University of Technology, Gulin 541004, China 2 Faculty of Earth Sciences, China University of Geoscience, Wuhan 430074, China | 2008 | Science China Earth Sciences2008,51,2: | 3 |
| 7 | Enrichment and Release of Rare Earth Elements during Weathering of Sedimentary Rocks in Wujiang Catchments显示文摘Thirteen weathering profiles of sedimentary rocks such as limestone, dolomitic limestone, dolomite, silicalite, black shale and purple sandrock from Wujiang catchments were selected for study on enrichment and release behavior of rare earth elements (REE) during weathering, and in its impact on plant growth and riverine REE distribution in the catchments with methods of hierachical cluster analysis and mass balance calculation in order to set a basis for riverine material source research and agricultural production. The results show that the enrichment degree of REE in calcareous soils from the Wujiang catchments is much higher than that of limestone, yellow soil, upper continental crust (UCC), China soil (CS) and world soil (WS). The ability of enrichment and release of REE is partly controlled by distribution of REE in bedrocks, contents and adsorption ability of organic matters, clay minerals and Fe-oxides/hydroxides in weathering profiles. The REE released from weathering of carbonate rocks and clastic rocks can be absorbed and utilized by local plants. Our results also reveal that release of REE and Fe mainly from weathering of carbonate rocks and partly from clastic rocks exerts an important control on riverine REE distribution. | Song Zhaoliang Liu Congqiang Han Guilin Wang Zhongliang Zhu Zhaozhou Yang Song Zhaoliang | 2006 | Journal of Rare Earths2006,24,3: | 2 |
| 8 | Effects of slope position and land use on the stability of aggregateassociated organic carbon in calcareous soils显示文摘Topography and land use affect soil organic carbon(SOC) storage, stabilization, and turnover, through several biogeochemical processes. This study investigated the aggregate composition and SOC content of bulk soils and aggregates at different slope positions under different land uses in a typical karst catchment of southwestern China. Our results show that the proportion of macro-aggregates and the SOC content of bulk soils and aggregates at different slope positions decreased from the upper to the lower slope. The SOC content generally increased with an increase in the mean weight diameter and proportion of macro-aggregates under different land uses. Our results indicate that macro-aggregates in forest and grassland soils make a greater contribution to both aggregate composition and SOC content than that in arable land soils. Therefore,converting farmland to forest or grassland can facilitate the accumulation of macro-aggregates as well as the storage of SOC. | Man Liu Guilin Han Zichuan Li Taoze Liu Xiaomin Yang Yuntao Wu Zhaoliang Song | 2017 | Acta Geochimica2017,36,3: | 2 |
| 9 | Water geochemistry controlled by carbonate dissolution: a study of the river waters draining karst-dominated terrain, Guizhou Province, China显示文摘 | Guilin Han Cong-Qiang Liu | 2003 | Chemical Geology2003,,1: | 1 |
| 10 | Sulfuric acid as an agent of carbonate weathering constrained by δ^13CDIC: Examples from Southwest China 显示文摘 | Li Si-liang Calmels D Han Guilin Gaillardet J Liu Cong-qiang | 2008 | Earth Planet Sci Lett2008,270,34: | 1 |
| 11 | Hydrogeochemistry of Wujiang river water in Guizhou province,China显示文摘 | Han Guilin Liu Congqiang | | 0,,03: | 1 |
| 12 | Hydrogeochemistry of Wujiang River water in Guizhou Province, China 显示文摘 | Han Guilin Liu Congqiang | 2001 | Chinese J Geochem2001,20,3: | 1 |
| 13 | Water geochemnistry controlled by carbonate dissolution 显示文摘 | Guilin Han Cong - Qiang Liu | 2004 | Chemical Geology2004,204,: | 1 |
| 14 | Water geochemistry controlled by carbonate dissolution: A study of the river waters draining karst- dominated terrain, Guizhou Province, China 显示文摘 | Han Guilin Liu Cong-qiang | 2004 | Chem Geol2004,204,12: | 1 |
| 15 | Effects of topography and vegetation on distribution of rare earth elements in calcareous soils显示文摘This study investigated the impact of topography and vegetation on distribution of rare earth elements(REEs)in calcareous soils using methods of single extraction and mass balance calculation. The purposes of the study were to set a basis for further research on the biogeochemical REE cycle and to provide references for soil–water conservation and REE-containing fertilizer amendments. The results show a generally flat Post-Archean Average Australian Shale—normalized REE pattern for the studied calcareous soils. REE enrichment varied widely. The proportion of acidsoluble phases of heavy REEs was higher than that of light REEs. From top to bottom of the studied hills, dominant REE sources transitioned from limestone in-situ weathering to input from REE-containing phases(e.g., clay minerals,amorphous iron, REE-containing fluids). Our results indicate that the REE content of calcareous soils is mainly controlled by slope aspect, while the enrichment degree of REEs is related to geomorphological position and vegetation type.Furthermore, the proportion of acid-soluble phases of REEs is mainly controlled by geomorphological position. | Zhaoliang Song Yuntao Wu Xiaomin Yang Zijuan Xu Linan Liu Xiaodong Zhang Qian Hao Shaobo Sun Guilin Han Congqiang Liu | 2017 | Acta Geochimica2017,36,3: | 1 |
| 16 | Exosomes in cancer immunoediting and immunotherapy显示文摘As an important means of communication among cells,exosomes are being studied more and more widely,especially in the context of cancer immunotherapy.In the phase of tumor immunoediting,exosomes derived from tumor cells and different immune cells have complex and changeable physiological functions,because they carry different proteins and nucleic acid from the source cells.Based on the role of exosomes in the communication between different cells,cancer treatment methods are also under continuous research.This review briefly introduces the molecular composition of exosomes,which is closely related to their secretion mechanism.Subsequently,the role of exosomes encapsulating different information molecules is summarized.The role of exosomes in the three phases of tumor immunoediting is introduced in detail,and the relevant literature of exosomes in the tumor immunemicroenvironment is summarized by using a novel framework for extracting relevant documents.Finally,it summarizes the various exosome-based immunotherapies currently proposed,as well as the challenges and future prospects of exosomes in tumor immunotherapy. | Yarong Zhao Luotong Liu Rongze Sun Guilin Cui Shuyu Guo Songren Han Ziwei Li Tian Bai Lesheng Teng | 2022 | Asian Journal of Pharmaceutical Sciences2022,17,2: | 1 |
| 17 | Characteristics of CO_2 in unsaturated zone(~90 m) of loess tableland, Northwest China显示文摘In order to observe CO_2 characteristics in the unsaturated zone of loess tableland and further understand the carbon cycle,a series of tubes for gas monitoring and sampling were installed in an approximately 90-m deep Qiushe loess section of Lingtai County,Northwestern China.The results show that the concentration of CO_2 was higher in loess than in the atmosphere,reaching a maximum of 6970 lmol·mol^(-1).CO_2 concentrations in loess were higher in summer than in winter.The CO_2 in loess was related to organic carbon decomposed by microbes,and to the CaCO_3–H_2O–CO_2 system in the interface between the saturated and unsaturated zones. | Chao Song Guilin Han Yingchun Shi Congqiang Liu Pan Wang | 2017 | Acta Geochimica2017,36,3: | 1 |
| 18 | Science with the 2.5-meter Wide Field Survey Telescope(WFST)显示文摘The Wide Field Survey Telescope(WFST) is a dedicated photometric surveying facility being built jointly by University of Science and Technology of China(USTC) and the Purple Mountain Observatory(PMO). It is equipped with a 2.5-meter diameter primary mirror, an active optics system, and a mosaic CCD camera with 0.73 gigapixels on the primary focal plane for highquality image capture over a 6.5-square-degree field of view. The installation of WFST near the summit of Saishiteng mountain in the Lenghu region is scheduled in summer of 2023, and the operation is planned to start three months later. WFST will scan the northern sky in four optical bands(u, g, r and i) at cadences from hourly/daily in the deep high-cadence survey(DHS) program, to semi-weekly in the wide field survey(WFS) program. During a photometric night, a nominal 30 s exposure in the WFS program will reach a depth of 22.27, 23.32, 22.84, and 22.31(AB magnitudes) in these four bands, respectively, allowing for the detection of a tremendous amount of transients in the low-z universe and a systematic investigation of the variability of Galactic and extragalactic objects. In the DHS program, intranight 90 s exposures as deep as 23(u) and 24 mag(g), in combination with target of opportunity follow-ups, will provide a unique opportunity to explore energetic transients in demand for high sensitivities, including the electromagnetic counterparts of gravitational wave events, supernovae within a few hours of their explosions,tidal disruption events and fast, luminous optical transients even beyond redshift of unity. In addition, the final 6-year co-added images, anticipated to reach g■25.8 mag in WFS or 1.5 mags deeper in DHS, will be of fundamental importance to general Galactic and extragalactic science. The highly uniform legacy surveys of WFST will serve as an indispensable complement to those of the Vera C. Rubin Observatory's Legacy Survey of Space and Time(LSST) that monitors the southern sky. | Tinggui Wang Guilin Liu Zhenyi Cai Jinjun Geng Min Fang Haoning He Ji-an Jiang Ning Jiang Xu Kong Bin Li Ye Li Wentao Luo Zhizheng Pan Xuefeng Wu Ji Yang Jiming Yu Xianzhong Zheng Qingfeng Zhu Yi-Fu Cai Yuanyuan Chen Zhiwei Chen Zigao Dai Lulu Fan Yizhong Fan Wenjuan Fang Zhicheng He Lei Hu Maokai Hu Zhiping Jin Zhibo Jiang Guoliang Li Fan Li Xuzhi Li Runduo Liang Zheyu Lin Qingzhong Liu Wenhao Liu Zhengyan Liu Wei Liu Yao Liu Zheng Lou Han Qu Zhenfeng Sheng Jianchun Shi Yiping Shu Zhenbo Su Tianrui Sun Hongchi Wang Huiyuan Wang Jian Wang Junxian Wang Daming Wei Junjie Wei Yongquan Xue Jingzhi Yan Chao Yang Ye Yuan Yefei Yuan Hongxin Zhang Miaomiao Zhang Haibin Zhao Wen Zhao | 2023 | Science China(Physics,Mechanics & Astronomy)2023,66,10: | 1 |
| 19 | Chemical and strontium isotope characterization of rainwater in Beijing, China 显示文摘 | XU Zhifang HAN Guilin | 2009 | Atmospheric E nvironment2009,43,: | 1 |
| 20 | Effects of the Structure of Ce-Cu Catalysts on the Catalytic Combustion of Toluene in Air显示文摘 | Zhou Guilin Lan Han Yang Xiaoqing | 2013 | Ceram Int2013,39,4: | 1 |