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Opportunities and challenges of the Sponge City construction related to urban water issues in China

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Science China Earth Sciences 2017年第4期60卷 652-658页

作者： XIA Jun ZHANG YongYong XIONG LiHua HE Shan WANG LongFeng yu zhongbo State Key Laboratory of Water Resources & Hydropower Engineering Sciences Wuhan University Wuhan 430072 China Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China CPG Consultants Pte Ltd 1 Gateway Drive Westgate Tower Singapore 608531 Singapore State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University Nanjing 210098 China

Waterlogging is one of the major water issues in most cities of China and directly restricts their urbanization *** construction of Sponge City is an effective approach to solving the urban water issues,particularly for the *** this study,both the urban issues emerged at the stage of rapid urbanization in China and the demands as well as problems of Sponge City construction related with the water issues were investigated,and the opportunities and challenges for the Sponge City construction in the future were also *** was found that the current stormwater management focused on the construction of gray infrastructures(e.g.,drainage network and water tank) based on the fast discharge idea,which was costly and hard to catch up with the rapid expansion of city and its impervious surface,while green infrastructures(e.g.,river,lake and wetland)were ***,the current construction of Sponge City was still limited to low impacted development(LID) approach which was concentrated on source control measures without consideration of the critical functions of surrounding landscapes(i.e.,mountain,river,wetland,forest,farmland and lake),while application of the integrated urban water system approach and its supported technologies including municipal engineering,urban hydrology,environmental science,social science and ecoscape were relatively weak and needed to be ***,the lack of special Sponge City plan and demonstration area was also a considerable *** this paper,some perspectives on Good Sponge City Construction were proposed such as the point that idea of urban plan and construction should conform to the integral and systematic view of sustainable urban ***,both the basic theoretical research and the basic infrastructure construction such as monitoring system,drainage facility and demonstration area should be strengthened,meanwhile,the reformation and innovation in the urban water management system and

关键词： Tibetan Plateau Indian Plate Asian Plate Initial collision Suturing processes

Can media exposure improve stock price efficiency in China and why?

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China Journal of Accounting Research 2016年第2期9卷 83-114页

作者： Jeong-Bon Kim zhongbo yu Hao Zhang School of Accounting and Finance University of Waterloo Shenzhen Stock Exchange Research Institute College of Business City University of Hong Kong

The media in China has undergone extensive commercialization to become more market-driven over the last 35 years. Based on a sample of over two million newspaper articles, this study investigates whether the media in China has an incremental impact on stock price efficiency. We find that: as media coverage of a firm increases,(1) its stock price synchronicity decreases;(2)the probability of informed trading of its stock increases; and(3) the extent to which its stock price deviates from random walk decreases. Our interregional analysis over thirty-one provinces/regions within China reveals that the effects of the media on decreasing stock price synchronicity, increasing the probability of informed trading, and reducing stock price deviation from random walk are stronger in regions of weaker institutional *** findings suggest that a market-driven media can play the role of compensating for the underdeveloped governance institutions in transitional economies such as China.

关键词： Media exposure Stock price efficiency China

A DNA Force Circuit for Exploring Protein-Protein Interactions at the Single-Molecule Level

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Chinese Journal of Chemistry 2024年第13期42卷 1456-1464页

作者： Kangkang Ma Luoan Xiong Zhuofei Wang Xin Hu Lihua Qu Xuetong Zhao Yao Li zhongbo yu State Key Laboratory of Medicinal Chemical Biology Frontiers Science Center for Cell Responsesand College of PharmacyNankai University38 Tongyan RoadTianjin 300350China School of Physics and Key Laboratory of Functional Polymer Materials of Ministry of Education Nankai Universityand Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300071China

Protein-protein interactions(PPls)play a crucial role in drug discovery and disease ***,the development of effective drugs targeting PPls remains challenging due to limited methodologies for probing their spatiotemporal ***,we propose a single-molecule approach using a unique force circuit to investigate Ppl dynamics and anisotropy under mechanical *** conventional techniques,this approach enables the manipulation and real-time monitoring of individual proteins at specific amino acids with defined geometry,offering insights into molecular mechanisms at the single-molecule *** DNA force circuit was constructed using click chemistry conjugation methods and genetic code expansion techniques,facilitating orthogonal conjugation between proteins and nucleic *** SET domain of the MLL1 protein and the tail of histone H3 were used as a model system to demonstrate the application of the DNA force *** the use of atomic force microscopy and magnetic tweezers,optimized assembly procedures were *** DNA force circuit provides an exceptional platform for studying the anisotropy of PPis and holds promise for advancing drug discovery research targeted at PPIs.

关键词： Single-molecule studies Protein-protein interactions Click chemistry Genetic code expansion Molecular dynamics

Effects of Soil Hydraulic Properties on Soil Moisture Estimation

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Journal of Meteorological Research 2023年第1期37卷 58-74页

作者： Xiaolei FU Haishen Lyu zhongbo yu Xiaolei JIANG Yongjian DING Donghai ZHENG Jinbai HUANG Hongyuan FANG College of Hydraulic Science and Engineering Yangzhou UniversityYangzhou 225009 Key Laboratory of Hydrometeorological Disaster Mechanism and Warning of Ministry of Water Resources Nanjing University of Information Science&TechnologyNanjing 210044 State Key Laboratory of Hydrology–Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098 Joint International Research Laboratory of Global Change and Water Cycle Hohai UniversityNanjing 210098 Yangtze Institute for Conservation and Development Hohai UniversityNanjing210098 State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000 Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100101

Accurate quantification of soil moisture is essential to understand the land surface *** hydraulic properties influence water transport in soil and thus affect the estimation of soil ***,some soil hydraulic properties are only observable at a few field *** this study,the effects of soil hydraulic properties on soil moisture estimation are investigated by using the one-dimensional(1-D)Richards equation at ELBARA,which is part of the Maqu monitoring network over the Tibetan Plateau(TP),*** moisture assimilation experiments are then conducted with the unscented weighted ensemble Kalman filter(UWEnKF).The results show that the soil hydraulic properties significantly affect soil moisture *** soil hydraulic conductivity(Ksat)is optimized based on its observations in each soil layer with a genetic algorithm(GA,a widely used optimization method in hydrology),and the 1-D Richards equation performs well using the optimized *** the range of Ksat for a complete soil profile is known for a particular soil texture(rather than for arbitrary layers within the horizon),optimized Ksat for each soil layer can be obtained by increasing the number of generations in GA,although this increases the computational cost of *** performs well with optimized Ksat,and improves the accuracy of soil moisture simulation more than that with calculated ***,better soil moisture estimation can be obtained by using optimized saturated volumetric soil moisture content *** summary,an accurate soil profile can be obtained by using soil moisture assimilation with optimized soil hydraulic properties.

关键词： soil moisture one-dimensional(1-D)Richards equation unscented weighted ensemble Kalman filter(UWEnKF) soil hydraulic properties genetic algorithm

Evaluating Soil Moisture Predictions Based on Ensemble Kalman Filter and SiB2 Model

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Journal of Meteorological Research 2019年第2期33卷 190-205页

作者： Xiaolei FU zhongbo yu Ying TANG Yongjian DING Haishen Lyu Baoqing ZHANG Xiaolei JIANG Qin JU State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences College of Civil Engineering Fuzhou University State Key Laboratory of Hydrology–Water Resources and Hydraulic Engineering Hohai University Department of Geography Michigan State University College of Earth and Environmental Sciences Lanzhou University

Soil moisture is an important variable in the fields of hydrology, meteorology, and agriculture, and has been used for numerous applications and forecasts. Accurate soil moisture predictions on both a large scale and local scale for different soil depths are needed. In this study, a soil moisture assimilation and prediction based on the Ensemble Kalman Filter(EnKF) and Simple Biosphere Model(SiB2) have been performed in Meilin watershed, eastern China, to evaluate the initial state values with different assimilation frequencies and precipitation influences on soil moisture predictions. The assimilated results at the end of the assimilation period with different assimilation frequencies were set to be the initial values for the prediction period. The measured precipitation, randomly generated precipitation,and zero precipitation were used to force the land surface model in the prediction period. Ten cases were considered based on the initial value and precipitation. The results indicate that, for the summer prediction period with the deeper water table depth, the assimilation results with different assimilation frequencies influence soil moisture predictions significantly. The higher assimilation frequency gives better soil moisture predictions for a long lead-time. The soil moisture predictions are affected by precipitation within the prediction period. For a short lead-time, the soil moisture predictions are better for the case with precipitation, but for a long lead-time, they are better without precipitation. For the winter prediction period with a lower water table depth, there are better soil moisture predictions for the whole prediction period. Unlike the summer prediction period, the soil moisture predictions of winter prediction period are not significantly influenced by precipitation. Overall, it is shown that soil moisture assimilations improve its predictions.

关键词： soil moisture Ensemble Kalman Filter (EnKF) Simple Biosphere Model (SiB2) prediction

Reading Time and DNA Sequence Preference of TET3 CXXC Domain Revealed by Single-Molecule Profiling

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Chinese Journal of Chemistry 2023年第10期41卷 1177-1184页

作者： Zeyu Wang Zhiqiang Cao Kangkang Ma Man Lu Meije Wang Han Gao Deshun Gong Lin Liang zhongbo yu Frontiers Science Center for Cell Responses State Key Laboratory of Medicinal Chemical Biologyand College of PharmacyNankai University38 Tongyan RoadTianjin 300350China State Key Laboratory of Medicinal Chemical Biology and College of Life Sciences Nankai UniversityTianjin 300350China College of Animal Science Shanxi Agricultural UniversityTaiguShanxi 030801China

Recognition of CpG dinucleotide DNA in epigenetic information flow plays a pivotal role for cellular differentiation and *** TET3 CXXC domain binds to CpG DNA,serving a basic epigenetic information reading *** the selective recognition of a CpG motif by a CXXC domain from crowded binding sites in a gene sequence,the protein-DNA interactions are beyond CpG ***,the selective binding dynamics of CpG within a long DNA context by epigenetic enzymes have been rarely exploit-ed,which is hard for ensemble methods to ***,we used single-molecule magnetic tweezers to quantitatively examine the dynamics of TET3's CXXC domain on a Hoxa9 promoter *** single-molecule binding profile revealed that CXXC-DNA interactions involve both CpG motifs and their flanking *** residence time of TET3 CXXC differs by about 1000 times in five distin-guished CpG clusters in the context of a CpG ***,we performed multi-state hidden Markov modeling analysis on the zip-ping/unzipping dynamics of a CpG hairpin,discovering TET3 CXXC's preference on CpG motifs regarding the-2 to+2 flanking *** results shed light on the selective binding dynamics of a CXXC on a gene sequence,facilitating studies on epigenetic information reading mechanisms.

关键词： Enzymes DNA recognition CpG flanking sequence Single-molecule studies Magnetic tweezers

A distributed modeling approach to water balance implications from changing land cover dynamics in permafrost environments

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Geography and Sustainability 2024年第4期5卷 561-576页

作者： Naveed Ahmed Haishen Lu zhongbo yu Oluwafemi E.Adeyeri Muhammad Shahid Iqbal Jinbin Su The National Key Laboratory of Water Disaster Prevention College of Hydrology and Water ResourcesHohai UniversityNanjing 210098China College of Hydrology and Water Resources Hohai UniversityNanjing 210098China School of Energy and Environment City University of Hong KongKowloonHong Kong Special Administrative Regions of China Australian Rivers Institute Griffith UniversityNathanQLD 4111Australia International Water Management Institute(IWMI) Lahore 54000Pakistan National Tibetan Plateau Data Center State Key Laboratory of Tibetan Plateau Earth SystemEnvironment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China

There is 78%permafrost and seasonal frozen soil in the Yangtze River’s Source Region(SRYR),which is situated in the middle of the Qinghai-Xizang *** distinct scenarios were developed in the Soil and Water Assessment Tool(SWAT)to model the effects of land cover change(LCC)on various water balance *** and percolation of groundwater have decreased by *** demonstrates the seasonal contributions of subsurface water,which diminish when soil *** winter,when surface water inputs are low,groundwater storage becomes even more critical to ensure water supply due to this periodic *** impermeable layer underneath the active layer thickness decreases GWQ and PERC in LCC+permafrost *** water transport and storage phase reached a critical point in August when precipitation,permafrost thawing,and snowmelt caused LATQ to *** prevent waterlogging and save water for dry periods,it is necessary to control this peak flow *** processes,permafrost dynamics,and land cover changes in the SRYR are difficult,according to the *** interactions enhance water circulation throughout the year,recharge of groundwater supplies,surface runoff,and lateral *** the region’s water resource management to be effective in sustaining ecohydrology,ensuring appropriate water storage,and alleviating freshwater scarcity,these dynamics must be considered.

关键词： Cold region Land cover change Permafrost hydrology SWAT model Source region Yangtze river

Xin'anjiang Nested Experimental Watershed(XAJ-NEW)for Understanding Multiscale Water Cycle:Scientific Objectives and Experimental Design

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Engineering 2022年第11期18卷 207-217页

作者： Ke Zhang yunping Li zhongbo yu Tao Yang Junzeng Xu Lijun Chao Jin Ni Liutong Wang yun Gao yuzhong Hu Zuoding Lin State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China Yangtze Institute for Conservation and Development Hohai UniversityNanjing 210098China College of Hydrology and Water Resources Hohai UniversityNanjing210098China Bureau of Hydrology(Information Center)of Taihu Basin Authority Shanghai 200434China Bureau of Hydrology of Anhui Province Hefei 230022China Department of Hydrology Chinese Ministry of Water ResourcesBeijing 100053China

This paper presents the background,scientific objectives,experimental design,and preliminary achievements of the Xin’anjiang nested experimental watershed(XAJ-NEW),implemented in 2017 in eastern China,which has a subtropical humid monsoon climate and a total area of 2674 *** scientific objectives of the XAJ-NEW include building a comprehensive,multiscale,and nested hydrometeorological monitoring and experimental program,strengthening the observation of the water cycle,discovering the spatiotemporal scaling effects of hydrological processes,and revealing the mechanisms controlling runoff generation and partitioning in a typical humid,hilly *** two years of operation,preliminary results indicated scale-dependent variability in key hydrometeorological processes and variables such as precipitation,runoff,groundwater,and soil *** effects of canopy interception and runoff partitioning between the surface and subsurface were also *** operation of this program can further reveal the mechanisms controlling runoff generation and partitioning,discover the spatiotemporal scaling effects of hydrological processes,and understand the impacts of climate change on hydrological *** findings provide new insights into understanding multi scale hydrological processes and their responses to meteorological forcings,improving model parameterization schemes,and enhancing weather and climate forecast skills.

关键词： Water cycle Runoff generation Hydrological processes Hydrological scaling Soil moisture Groundwater Canopy interception

Application of hydrological models in a snowmelt region of Aksu River Basin

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Water Science and Engineering 2008年第4期1卷 1-13页

作者： Ouyang Rulin Ren Liliang Cheng Weiming yu zhongbo State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University Nanjing 210098 P. R. China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 P. R. China

This study simulated and predicted the runoff of the Aksu River Basin, a typical river basin supplied by snowmelt in an arid mountain region, with a limited data set and few hydrological and meteorological stations. Two hydrological models, the snowmelt-runoff model （SRM） and the Danish NedbФr-AfstrФmnings rainfall-runoff model （NAM）, were used to simulate daily discharge processes in the Aksu River Basin. This study used the snow-covered area from MODIS remote sensing data as the SRM input. With the help of ArcGIS software, this study successfully derived the digital drainage network and elevation zones of the basin from digital elevation data. The simulation results showed that the SRM based on MODIS data was more accurate than NAM. This demonstrates that the application of remote sensing data to hydrological snowmelt models is a feasible and effective approach to runoff simulation and prediction in arid unguaged basins where snowmelt is a major runoff factor.

关键词： hydrological model snowmelt-runoff model (SRM) Danish NedbФr-AfstrФmnings model (NAM) remote sensing runoff simulation and prediction snowmelt region unguaged basin Aksu River Basin