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2007中国科协年会

作者： w.ouyang~(1,2) f.h.hao~1 h.chen~1 x.wang~1 s.t.yang~3 1.school of environment,state key laboratory of water environment simulation,2.beijing normal university 2.international institute for geo-information science and earth observation(ItC),netherlands 3.state key laboratory of remote sensing science,beijing key laboratory for remote sensing of environment and digital cities,school of geography,beijing normal university

with the rapid economic developments in China,the future water resource developments should be sustainable and that a component of the natural flow of rivers should be reserved to ensure diverse ecological *** last 15 years,ecological instream flow requirements(EIfR)research of river was one of the main and hot fields for eco-hydrology *** this paper,we summarized the research advance of eco-hydrology and also,the conception of the EIfR was also followed and *** ecological instream flow has three main functions:maintain the water ecological environments,dilute pollutants and *** coordinate with the water resource allocation,we evaluated EIfR of Pihe River section in every 12 month of three typical years (1968,1986 and 1987).Pihe River is one of the main waterr sources for the cities in sichuan Basin and locates in the lower beach of famous Doujiang *** Montana methodology was widely applied in water requirements estimate and proved *** on natural characters of Pihe River,minimum and optimum water requirement of aquatic habitat for the river maintenance were *** water requirement of Pihe River was computed too,which is related with the width of water surface,the river length and evaporation depth. Considering the water quality goal,diluting pollutant water requirement was taken into *** the EIfR of the river of 12 month were ultimates,*** them,that was 20.64m/s and the minimum eco-environmental water requirement of the river was 25.84m/s.

关键词： Eco-environmental water requirements water resource allocation water quality goal Pollutant dilute water requirement

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Node ordinal encoded genetic algorithm for the optimal allocation of water resources

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Progress in Natural science:Materials international 2005年第5期15卷 448-452页

作者： yang xiaohua1*, yang Zhifeng 1,2, shEN Zhenyao1 and LI Jianqiang3(1. state key laboratory of water environment simulation, school of environment, beijing normal university, beijing 100875, China 2. key laboratory for water and sediment sciences Ministry of Education, school of environment, beijing normal university, beijing 100875, China 3. water Resources and hydropower Planning and Design General institute, MwR, beijing 100011, China) state key laboratory of water environment simulation School of Environment Beijing Normal University Beijing 100875 China key laboratory for water and sediment sciences Ministry of Education School of Environment Beijing Normal University Beijing 100875 China water Resources and hydropower Planning and Design General institute MWR Beijing 100011 China

A new method, node ordinal encoded genetic algorithm (NOEGA), is proposed for solving water resources optimal allocation problems, in which the capacity of water resources is split into a number of smaller parts so that successive operations can be overlapped. Our objective is to maximize the whole benefit function. to overcome the “dimensionality and algorithm complexity curse” while searching for solutions and looking for an optimal solution, the operations of one-point crossover operator, gene exchange operator, gene random operator, gene shift operator and node ordinal strings are established. It is proved to be an effective optimal method in searching for global solutions. the NOEGA does not need a diversity of initial population, and it does not have the problem of immature convergence. the results of two cases show that using NOEGA to solve the optimal allocation model is very efficient and robust. In addition, the algorithm complexity of NOEGA is discussed.

关键词： water resources optimal allocation node ordinal code genetic algorithm.

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Problems and landscape approach for ecological rehabilitation in the dry valleys of southwest China

Problems and landscape approach for ecological rehabilitatio...

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2009 international Conference on environmental science and information Application technology

作者： Yuhong Dong Yucheng Comprehensive Experimental station institute of geographic science and Natural Resources Chinese Academy of sciences beijing 100101 China shiliang Liu school of environment state key laboratory of water environment simulation beijing normal university beijing 100875 China

the degradation and rehabilitation of dry valley are increasingly a focus of scientific and applied *** paper reviews the general conditions of eco-environmental degradation and puts forward a landscape appoarch for ***,soil and vegetation degradation is the main cause of the *** analysis and insights into the soil and vegetation degradation phenomena and essences are needed for ***-up approach rehabilitation of dry valleys with farmer’s participation is needed and the relationship of ecological,social,economical factors should be considered and different measures should be ***,landscape approach for rehabilitation in relation to the policy"return farmland into forest" vegetation recovery,and afforestation are discussed.

关键词： degradation rehabilitation dry valley landscape approach southwest China

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Impacts of major volcanic eruptions over the past two millennia on both global and Chinese climates:A review

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science China earth sciences 2024年第1期67卷 61-78页

作者： weiyi sUN Deliang chen Guonian LÜ Liang NING Chaochao GAO Renhe ZhANG Bin wang Jian LIU key laboratory for Virtual geographic environment Ministry of EducationState Key Laboratory Cultivation Base of Geographical Environment Evolution of Jiangsu ProvinceJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and ApplicationSchool of Geography ScienceNanjing Normal UniversityNanjing 210023China Regional Climate Group Department of Earth SciencesUniversity of GothenburgGothenburg 40530Sweden College of environmental and Resource science Zhejiang UniversityHangzhou 310058China Department of Atmospheric and Oceanic sciences&institute of Atmospheric sciences Fudan UniversityShanghai 200437China Department of Atmospheric sciences and Atmosphere-Ocean Research Center University of Hawaii at ManoaHonoluluHI 96825USA Jiangsu Provincial key laboratory for Numerical simulation of Large scale Complex systems School of Mathematical ScienceNanjing Normal UniversityNanjing 210023China Open studio for the simulation of Ocean-Climate-Isotope Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

Major volcanic eruptions(MVEs)have attracted increasing attention from the scientific *** studies have explored the climatic impact of MVEs over the past two ***,proxy-based reconstructions and climate model simulations indicate divergent responses of global and China’s regional climates to ***,we used multiple data from observations,reconstructions,simulations,and assimilations to summarize the historical facts of MVEs,the characteristics and mechanisms of their climatic impact,and directions for future *** reviewed volcanic datasets and determined intensive MVE periods;these periods corresponded to the years 530–700,1200‒1460,and 1600‒1840 *** tropical MVEs,a substantial cooling effect is observed throughout the globe and China on the interannual-interdecadal time scales but an inconsistent cooling magnitude is detected between reconstructions and *** the first summer after tropical MVEs,a decrease in global and monsoonal precipitation is *** reconstructions and simulations,an increased precipitation is seen for the yangtze River Basin,while large uncertainties in precipitation changes are present for other regions of *** drought can be induced by frequent eruptions and volcanism superimposed on low solar irradiation and internal *** affect climate directly through the radiative effect and indirectly by modulating internal variability,such as the El Niño‒southern Oscillation(ENsO)and Atlantic Multidecadal Oscillation(AMO).however,changes in the phase,amplitude,and periodicity of ENsO and AMO after MVEs and the associated mechanisms remain controversial,which could account for model-reconstruction ***,other internal variability,uncertainties in reconstruction methods and aerosol‒climate models,and climate background may also induce model-reconstruction *** gaps and directions for future research are also discussed.

关键词： Major volcanic eruption Climate variability Mechanism Past two millennia Internal variability

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A passive sampler for synchronously measuring inorganic and organic pollutants in sediment porewater:Configuration and field application

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Journal of environmental sciences 2024年第2期136卷 201-212页

作者： Pei Lei Mingying chen Nan Rong wenzhong tang hong Zhang school of environment Nanjing Normal UniversityNanjing 210023China state key laboratory of environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China south China institute of environmental sciences Ministry of Ecology and EnvironmentGuangzhou 510530China state environmental Protection key laboratory of water environmental simulation and Pollution Control Guangzhou 510530China university of Chinese Academy of sciences Beijing 100049China

In situ measurement of multiple pollutants coexisting in sediment porewater is an essential step in comprehensively assessing the bioavailability and risk of pollutants,but to date,this needs to be better *** this study,a passive sampler,consisting of an“I-shaped”supporting frame and inorganic/organic sampling units,incorporating equilibrium dialysis theory and kinetic/equilibrium sorption principle,was developed for the synchronous measurement of inorganic(e.g.,phosphorus and metal(loid)s)and organic pollutants(e.g.,parent and substituted PAhs).the equilibrium time and sampling rates were explored in laboratory tests to support in situ *** of pollutants in porewater within a vertical resolution of centimeters,i.e.,1 cm and 2 cm for inorganic and organic pollutants,respectively,were obtained by field deployment of the sampler for further estimation of diffusive fluxes across the sediment-water *** results suggested that the role of sediments for a specific pollutant may change(e.g.,from“sink”to“source”)during the sampling *** study demonstrated the feasibility of synchronous measurement of inorganic and organic pollutants in sediment porewater by the passive *** addition,it provided new insight for further investigation into the combined pollution effects of various pollutants in sediments.

关键词： Passive sampling Bioavailability Polycyclic aromatic hydrocarbons Combined pollution Diffusive flux

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Emerging contaminants:A One health perspective

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the Innovation 2024年第4期5卷 140-170,139页

作者： fang wang Leilei xiang Kelvin sze-Yin Leung Martin Elsner Ying Zhang Yuming Guo Bo Pan hongwen sun taicheng An Guangguo Ying Bryan wBrooks Deyi hou Damian Ehelbling Jianqiang sun hao Qiu timothy MVogel wei Zhang Yanzheng Gao Myrna Jsimpson Yi Luo scott xChang Guanyong su Bryan Mwong tzung-May fu Dong Zhu Karl JJobst chengjun Ge frederic Coulon Jean Damascene harindintwali xiankui Zeng haijun wang Yuhao fu Zhong wei Rainer Lohmann Changer chen yang song Concepcion sanchez-Cid Yu wang Ali El-Naggar Yiming Yao Yanran huang Japhet Cheuk-fung Law chenggang Gu huizhong shen Yanpeng Gao Chao Qin hao Li tong Zhang Natàlia Corcoll Min Liu Daniel sAlessi hui Li Kristian KBrandt Yolanda Pico cheng Gu Jianhua Guo Jianqiang su Philippe Corvini Mao Ye teresa Rocha-santos huan he Yi yang Meiping tong weina Zhang fidèle suanon ferdi Brahushi Zhenyu wang syed Ahashsham Marko Virta Qingbin Yuan Gaofei Jiang Louis A.tremblay Qingwei Bu Jichun wu willie Peijnenburg Edward topp xinde Cao xin Jiang Minghui Zheng taolin Zhang Yongming Luo Lizhong Zhu xiangdong Li DamiàBarceló Jianmin chen Baoshan xing wulf Amelung Zongwei Cai Ravi Naidu Qirong shen Janusz Pawliszyn Yong-guan Zhu Andreas schaeffer Matthias C.Rillig fengchang wu Gang Yu James M.tiedje state key laboratory of soil and sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China university of Chinese Academy of sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina hKBU institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina technical university of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany school of Resources&environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia faculty of environmental science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education key laboratory of Pollution Processes and environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong key laboratory of environmental Catalysis and health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education key laboratory of environmental theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of environmental science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic systems Research(CRAsR) Baylor UniversityWacoTXUSA school of environment Tsinghua UniversityBeijing 100084China school of Civil and environmental Engineering Cornell UniversityIthacaNY 14853USA key laboratory of Microbial technology for Industrial Pollution Control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China school of environmental science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental science-Policy Panel on Chemicals,waste,and Pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

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high-resolution reconstruction of April-september precipitation and major extreme droughts in China over the past∼530 years

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science Bulletin 2024年第17期69卷 2756-2764页

作者： Yongxiang Zhang hongli wang xuemei shao hongbin Liu haifeng Zhu Lily wang Eryuan Liang Zhixin hao xiuqi fang Qibin Zhang Jinjian Li xinghe shi Yujiang Yuan feng chen tongwen Zhang Ruibo Zhang huaming shang Jianfeng Peng National Climate Centre China Meteorological AdministrationBeijing 100081China key laboratory of Land surface Pattern and simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China beijing New Epoch school the Administrative Bureau of Chinese Academy of SciencesBeijing 100086China university of Chinese Academy of sciences Beijing 100049China key laboratory of Alpine Ecology Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China CAs Center for Excellence in tibetan Plateau earth sciences Beijing 100101China faculty of geographical science Beijing Normal UniversityBeijing 100875China state key laboratory of Vegetation and environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China school of Atmospheric sciences Plateau Atmosphere and Environment Key Laboratory of Sichuan ProvinceChengdu University of Information TechnologyChengdu 610225China Qinghai Climate Centre Xining 810001 China key laboratory of tree-Ring Physical and Chemical Research of China Meteorological Administration Key Laboratory of Tree-Ring Ecology of Xinjiang Uygur Autonomous RegionInstitute of Desert MeteorologyChina Meteorological AdministrationUrumqi 830002China Yunnan key laboratory of international Rivers and transboundary Eco-security Institute of International Rivers and Eco-SecurityYunnan UniversityKunming 650000China College of geography and environmental science Henan UniversityKaifeng 475004China

Extreme drought events have increased,causing serious losses and damage to the social economy under current warming ***,short-term meteorological data limit our understanding and projection of these *** the accumulation of proxy data,especially tree-ring data,large-scale precipitation field reconstruction has provided opportunities to explore underlying mechanisms *** point-by-point regression,we reconstructed the April-september precipitation field in China for the past~530 years on the basis of 590 proxy records,including 470 tree-ring width chronologies and 120 drought/flood *** regression models explained average 50%of the variance in *** the statistical test on calibration and verification,our models passed the significance level that assured reconstruction *** reconstruction data performed well,showing consistency and better quality than previously reported *** first three leading modes of variability in the reconstruction revealed the main distribution modes of precipitation over ***/drought and extremely wet/drought years accounted for 12.81%/10.92%(68 years/58 years)and 1.69%/3.20%(9 years/17 years)of the past~530 years in China,*** extreme drought events can be identified explicitly in our *** detailed features of the Chongzhen Great Drought(1637-1643),the wanli Great Drought(1585-1590),and the Ding-wu Great famine(1874-1879),indicated the existence of potentially different underlying mechanisms that need further *** further improvements can be made for remote uninhabited areas and large deserts,our gridded reconstruction of April-september precipitation in China over the past~530 years can provide a solid database for studies on the attribution of climate change and the mechanism of extreme drought events.

关键词： Precipitation reconstruction tree rings historical documents Precipitation variability Extreme droughts

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selective removal of Cr(Ⅵ)using polyvinylpyrrolidone and polyacrylamide co-modified Mos_(2) ccomposites by adsorption combined with reduction

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Chinese Chemical Letters 2024年第6期35卷 524-530页

作者： shuqi Yu Yu yang Keisuke Kuroda Jian Pu Rui Guo Li-An hou state key laboratory of water environment simulation School of EnvironmentBeijing Normal UniversityBeijing 100875China Department of environmental and Civil Engineering Toyama Prefectural UniversityImizuToyama 939-0398Japan institute for the Advanced study of sustainability United Nations UniversityJingumae 5-53-70Shibuya-kuTokyo 150-8925Japan technical Centre for soil Agriculture and Rural Ecology and EnvironmentMinistry of Ecology and EnvironmentBeijing 100012China

Cr(Ⅵ),one of the most hazardous metal pollutants,poses significant threats to the environment and human ***,a novel Mos_(2) composite(Mos_(2)/PVP/PAM)modified by polyvinylpyrrolidone(PVP)and polyacrylamide(PAM)was synthesized to enhance the removal of Cr(Ⅵ).Characterization analysis including sEM,xRD,ftIR,and xPs indicated that PVP and PAM could increase the interlayer spacing and the dispersibility of Mos_(2),and introduce pyrrolic N and amino functional *** batch experiments showed that Mos_(2)/PVP/PAM represented excellent Cr(Ⅵ)removal performance over a wide p h range,and exhibited a significantly higher maximum Cr(Ⅵ)adsorption capacity(274.73 mg/g,at p h 3.0,and 298 K)than pure Mos_(2).the adsorption of Cr(Ⅵ)followed Langmuir and pseudo-second-order kinetic model,which was a homogeneous monolayer chemisorption ***_(2)/PVP/PAM showed stable removal of Cr(Ⅵ)in the presence of humic acid(hA),interfering cations and anions at different ***,it had excellent selectivity for Cr(Ⅵ)(K_(d) value of 1.69×10^(7)m L/g)when coexisting with a variety of competing *** characterization revealed that Cr(Ⅵ)was reduced to low toxicity Cr(Ⅲ)by Mo^(4+)and s^(2-),and then chelated on the surface of the adsorbent by pyrrolic *** research expanded the design concept for Mos_(2) composites by demonstrating the potential of Mos_(2)/PVP/PAM as a promising material for selective elimination of Cr(Ⅵ)in water.

关键词： Polyvinylpyrrolidone Polyacrylamide Mos_(2) Cr(Ⅵ)removal Adsorbent Reduction

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CAs-EsM2.0 Dataset for the Carbon Dioxide Removal Model Intercomparison Project(CDRMIP)

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Advances in Atmospheric sciences 2024年第5期41卷 989-1000页

作者： Jiangbo JIN Duoying JI xiao DONG Kece fEI Run GUO Juanxiong hE Yi YU Zhaoyang ChAI he ZhANG Dongling ZhANG Kangjun chen Qingcun ZENG international Center for Climate and environment sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China state key laboratory of satellite Ocean environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China state key laboratory of earth surface Processes and Resource Ecology College of Global Change and Earth System ScienceBeijing Normal UniversityBeijing 100875China state key laboratory of Numerical Modeling for Atmospheric sciences and geophysical fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

Understanding the response of the earth system to varying concentrations of carbon dioxide(CO_(2))is critical for projecting possible future climate change and for providing insight into mitigation and adaptation strategies in the near *** this study,we generate a dataset by conducting an experiment involving carbon dioxide removal(CDR)—a potential way to suppress global warming—using the Chinese Academy of sciences earth system Model version 2.0(CAsEsM2.0).A preliminary evaluation is *** model is integrated from 200–340 years as a 1%yr^(−1) CO_(2) concentration increase experiment,and then to~478 years as a carbon dioxide removal experiment until CO_(2) returns to its original ***,another 80 years is integrated in which CO_(2) is kept *** in the 2-m temperature,precipitation,sea surface temperature,ocean temperature,Atlantic meridional overturning circulation(AMOC),and sea surface height are all *** the ramp-up period,the global mean 2-m temperature and precipitation both increase while the AMOC *** of all the above variables change in the opposite direction in the ramp-down period,with a delayed peak relative to the CO_(2) *** CO_(2) returns to its original value,the global mean 2-m temperature is still~1 K higher than in the original state,and precipitation is~0.07 mm d^(–1) *** the end of the simulation,there is a~0.5°C increase in ocean temperature and a 1 sv weakening of the *** model simulation produces similar results to those of comparable experiments previously reported in the literature.

关键词： CAs-EsM2.0 CDRMIP carbon dioxide removal AMOC temperature precipitation sea surface height

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Demand-driven water withdrawals by Chinese industry： a multi-regional input-output analysis

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frontiers of earth science 2016年第1期10卷 13-28页

作者： Bo ZhANG Z. M. chen L. ZENG h. QIAO B. chen school of Management China University of Mining & Technology (Beijing) Beijing 100083 China state key laboratory of Coal Resources and safe Mining China University of Mining & Technology (Beijing) Beijing 100083 China school of Economics Renmin University of China Beijing 100872 China state key laboratory of simulation and Regulation of water Cycle in River Basin China Institute of Water Resources and Hydropower Research Beijing 100038 China school of Management University of Chinese Academy of Sciences Beijing 100190 China state key Joint laboratory of environmental simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

with ever increasing water demands and the continuous intensification of water scarcity arising from China＇s industrialization, the country is struggling to harmonize its industrial development and water supply. this paper presents a systems analysis of water with- drawals by Chinese industry and investigates demand- driven industrial water uses embodied in final demand and interregional trade based on a multi-regional input-output model. In 2007, the Electric Power, steam, and hot water Production and supply sector ranks first in direct industrial water withdrawal （Dww）, and Construction has the largest embodied industrial water use （EwU）. Investment, consumption, and exports contribute to 34.6%, 33.3%, and 30.6% of the national total EwU, respectively. specifically, 58.0%, 51.1%, 48.6%, 43.3%, and 37.5% of the regional EwUs respectively in Guangdong, shanghai, Zhejiang, Jiangsu, and fujian are attributed to international exports. the total interregional import/export of embodied water is equivalent to about 40% of the national total Dww, of which 55.5% is associated with the Dwws of Electric Power, steam, and hot water Production and supply. Jiangsu is the biggest interregional exporter and deficit receiver of embodied water, in contrast to Guangdong as the biggest interregional importer and surplus receiver. without implementing effective water- saving measures and adjusting industrial structures, the regional imbalance between water availability and water demand tends to intensify considering the water impact of domestic trade of industrial products. steps taken to improve water use efficiency in production, and to enhance embodied water saving in consumption are both of great significance for supporting China＇s water policies.

关键词： water withdrawal embodied water use Chinese industry interregional trade multi-regional inputoutput analysis

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