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Delineating Multiple Salinization Processes in a Coastal Plain
1 Delineating multiple salinization processes in a coastal plain aquifer, northern China: 2 hydrochemical and isotopic evidence 3 4 Han Dongmeia,b, Matthew Currellc 5 a Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources 6 Research, Chinese Academy of Sciences, Beijing, 100101, China 7 b College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China 8 c School of Engineering, RMIT University, Melbourne VIC 3000, Australia. 9 10 Abstract 11 Groundwater is an important water resource for agricultural irrigation, urban and industrial utilization in the 12 coastal regions of northern China. In the past five decades, coastal groundwater salinization in the 13 Yang-Dai River plain has become increasingly serious under the influence of anthropogenic activities and 14 climatic change. It is pivotal for the scientific management of coastal water resources to accurately 15 understand groundwater salinization processes and their causative factors. Hydrochemical (major ion and 16 trace element) and stable isotopic (δ18O and δ2H) analysis of different water bodies (surface water, 17 groundwater, geothermal water, and seawater) were conducted to improve understanding of groundwater 18 salinization processes in the plain’s Quaternary aquifer. Saltwater intrusion due to intensive groundwater 19 pumping is a major process, either by vertical infiltration along riverbeds which convey saline surface 20 water inland, and/or direct subsurface lateral inflow. Trends in salinity with depth indicate that the former 21 may be more important than previously assumed. The proportion of seawater in groundwater is estimated 22 to have reached up to 13% in shallow groundwater of a local well field. -
Polycyclic Aromatic Hydrocarbons in the Estuaries of Two Rivers of the Sea of Japan
International Journal of Environmental Research and Public Health Article Polycyclic Aromatic Hydrocarbons in the Estuaries of Two Rivers of the Sea of Japan Tatiana Chizhova 1,*, Yuliya Koudryashova 1, Natalia Prokuda 2, Pavel Tishchenko 1 and Kazuichi Hayakawa 3 1 V.I.Il’ichev Pacific Oceanological Institute FEB RAS, 43 Baltiyskaya Str., Vladivostok 690041, Russia; [email protected] (Y.K.); [email protected] (P.T.) 2 Institute of Chemistry FEB RAS, 159 Prospect 100-let Vladivostoku, Vladivostok 690022, Russia; [email protected] 3 Institute of Nature and Environmental Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan; [email protected] * Correspondence: [email protected]; Tel.: +7-914-332-40-50 Received: 11 June 2020; Accepted: 16 August 2020; Published: 19 August 2020 Abstract: The seasonal polycyclic aromatic hydrocarbon (PAH) variability was studied in the estuaries of the Partizanskaya River and the Tumen River, the largest transboundary river of the Sea of Japan. The PAH levels were generally low over the year; however, the PAH concentrations increased according to one of two seasonal trends, which were either an increase in PAHs during the cold period, influenced by heating, or a PAH enrichment during the wet period due to higher run-off inputs. The major PAH source was the combustion of fossil fuels and biomass, but a minor input of petrogenic PAHs in some seasons was observed. Higher PAH concentrations were observed in fresh and brackish water compared to the saline waters in the Tumen River estuary, while the PAH concentrations in both types of water were similar in the Partizanskaya River estuary, suggesting different pathways of PAH input into the estuaries. -
Saline Groundwater Evolution in Luanhe River Delta, China Since Holocene: Hydrochemical, Isotopic and Sedimentary Evidence
https://doi.org/10.5194/hess-2021-246 Preprint. Discussion started: 20 May 2021 c Author(s) 2021. CC BY 4.0 License. 1 Saline groundwater evolution in Luanhe River Delta, China since 2 Holocene: hydrochemical, isotopic and sedimentary evidence 3 Xianzhang Dang1, 2, 3, Maosheng Gao2, 4,, Zhang Wen1,, Guohua Hou2, 4, 4 Daniel Ayejoto1, Qiming Sun1, 2, 3 5 1School of Environmental Studies, China University of Geosciences, 388 Lumo Rd, Wuhan, 430074, 6 China 7 2Qingdao Institute of Marine Geology, CGS, Qingdao, 266071, China 8 3Chinese Academy of Geological Sciences, Beijing, 100037, China 9 4Laboratory for Marine Geology, Pilot National Laboratory for Marine Science and Technology, 10 Qingdao, 266071, China 11 Correspondence to: Maosheng Gao ([email protected]), Zhang Wen ([email protected]) 1 https://doi.org/10.5194/hess-2021-246 Preprint. Discussion started: 20 May 2021 c Author(s) 2021. CC BY 4.0 License. 1 Abstract 2 Since the Quaternary Period, palaeo-seawater intrusions have been suggested to 3 explain the observed saline groundwater that extends far inland in coastal zones. The 4 Luanhe River Delta (northwest coast of Bohai Sea, China) is characterized by the 5 distribution of saline, brine, brackish and fresh groundwater, from coastline to inland, 6 with a wide range of total dissolved solids (TDS) between 0.38–125.9 g L-1. 7 Meanwhile, previous studies have revealed that this area was significantly affected by 8 Holocene marine transgression. In this study, we used hydrochemical, isotopic, and 9 sedimentological methods to investigate groundwater salinization processes in the 10 Luanhe River Delta and its links to the palaeo-environmental settings. -
Supplementary Material (ESI) for Environmental Science: Processes & Impacts This Journal Is © the Royal Society of Chemistry 2013
Electronic Supplementary Material (ESI) for Environmental Science: Processes & Impacts This journal is © The Royal Society of Chemistry 2013 Supplementary Material MANUSCRIPT TITLE: PAHs in Chinese environment: levels, inventory mass, source and toxic potency assessment AUTHORS: Ji-Zhong Wang, Cheng-Zhu Zhu, Tian-Hu Chen Affiliation: School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China JOURNAL: Journal of Environmental Monitoring NO. OF PAGES: 43 NO. OF TABLES: 4 NO. FIGURES: 1 Electronic Supplementary Material (ESI) for Environmental Science: Processes & Impacts This journal is © The Royal Society of Chemistry 2013 Table S1. Basic information of natural source and economic and social development (all of these data were obtained from a database called Scientific Database of Chinese Academy of Sciences 1). Land area Watershed Glacier/desert Urban area Rural area Transportation Total water resources (km2) area (km2) area (km2) (km2) (km2)a area (km2)b volume (× 108 m3) Northern China Beijing 1.6E+04 1.1E+02 0.0E+00 5.5E+03 9.9E+03 3.6E+02 4.1E+01 Tianjing 1.2E+04 3.0E+02 0.0E+00 4.3E+03 7.0E+03 3.3E+02 1.5E+01 Hebei 1.9E+05 6.3E+02 1.1E+03 5.8E+03 1.8E+05 3.1E+03 2.4E+02 Shanxi 1.6E+05 5.6E+02 1.6E+03 8.8E+03 1.4E+05 1.6E+03 1.4E+02 Inner Mongolia 1.2E+06 4.0E+03 2.5E+05 1.3E+04 9.1E+05 3.2E+03 5.1E+02 Total 1.5E+06 5.6E+03 2.5E+05 3.8E+04 1.2E+06 8.6E+03 9.4E+02 Northeastern China Liaoning 1.6E+05 1.5E+03 0.0E+00 1.5E+04 1.5E+05 2.2E+03 3.6E+02 Jilin 1.8E+05 1.2E+03 4.0E+01 5.9E+04 1.2E+05 -
Revised Draft Experiences with Inter Basin Water
REVISED DRAFT EXPERIENCES WITH INTER BASIN WATER TRANSFERS FOR IRRIGATION, DRAINAGE AND FLOOD MANAGEMENT ICID TASK FORCE ON INTER BASIN WATER TRANSFERS Edited by Jancy Vijayan and Bart Schultz August 2007 International Commission on Irrigation and Drainage (ICID) 48 Nyaya Marg, Chanakyapuri New Delhi 110 021 INDIA Tel: (91-11) 26116837; 26115679; 24679532; Fax: (91-11) 26115962 E-mail: [email protected] Website: http://www.icid.org 1 Foreword FOREWORD Inter Basin Water Transfers (IBWT) are in operation at a quite substantial scale, especially in several developed and emerging countries. In these countries and to a certain extent in some least developed countries there is a substantial interest to develop new IBWTs. IBWTs are being applied or developed not only for irrigated agriculture and hydropower, but also for municipal and industrial water supply, flood management, flow augmentation (increasing flow within a certain river reach or canal for a certain purpose), and in a few cases for navigation, mining, recreation, drainage, wildlife, pollution control, log transport, or estuary improvement. Debates on the pros and cons of such transfers are on going at National and International level. New ideas and concepts on the viabilities and constraints of IBWTs are being presented and deliberated in various fora. In light of this the Central Office of the International Commission on Irrigation and Drainage (ICID) has attempted a compilation covering the existing and proposed IBWT schemes all over the world, to the extent of data availability. The first version of the compilation was presented on the occasion of the 54th International Executive Council Meeting of ICID in Montpellier, France, 14 - 19 September 2003. -
Water Quality Prediction in the Luan River Based on 1-DRCNN and Bigru Hybrid Neural Network Model
water Article Water Quality Prediction in the Luan River Based on 1-DRCNN and BiGRU Hybrid Neural Network Model Jianzhuo Yan 1,2, Jiaxue Liu 1,2, Yongchuan Yu 1,2,* and Hongxia Xu 1,2 1 Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China; [email protected] (J.Y.); [email protected] (J.L.); [email protected] (H.X.) 2 Engineering Research Center of Digital Community, Beijing 100124, China * Correspondence: [email protected]; Tel.: +86-131-2134-7750 Abstract: The current global water environment has been seriously damaged. The prediction of water quality parameters can provide effective reference materials for future water conditions and water quality improvement. In order to further improve the accuracy of water quality prediction and the stability and generalization ability of the model, we propose a new comprehensive deep learning water quality prediction algorithm. Firstly, the water quality data are cleaned and pretreated by isola- tion forest, the Lagrange interpolation method, sliding window average, and principal component analysis (PCA). Then, one-dimensional residual convolutional neural networks (1-DRCNN) and bi- directional gated recurrent units (BiGRU) are used to extract the potential local features among water quality parameters and integrate information before and after time series. Finally, a full connection layer is used to obtain the final prediction results of total nitrogen (TN), total phosphorus (TP), and potassium permanganate index (COD-Mn). Our prediction experiment was carried out according to the actual water quality data of Daheiting Reservoir, Luanxian Bridge, and Jianggezhuang at the three control sections of the Luan River in Tangshan City, Hebei Province, from 5 July 2018 to 26 March 2019. -
Make a Living: Agriculture, Industry and Commerce in Eastern Hebei, 1870-1937 Fuming Wang Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1998 Make a living: agriculture, industry and commerce in Eastern Hebei, 1870-1937 Fuming Wang Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Agriculture Commons, Asian History Commons, Economic History Commons, and the Other History Commons Recommended Citation Wang, Fuming, "Make a living: agriculture, industry and commerce in Eastern Hebei, 1870-1937 " (1998). Retrospective Theses and Dissertations. 11819. https://lib.dr.iastate.edu/rtd/11819 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly fi'om the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter &c&, while others may be fi-om any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely afiect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. -
Coal, Water, and Grasslands in the Three Norths
Coal, Water, and Grasslands in the Three Norths August 2019 The Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH a non-profit, federally owned enterprise, implementing international cooperation projects and measures in the field of sustainable development on behalf of the German Government, as well as other national and international clients. The German Energy Transition Expertise for China Project, which is funded and commissioned by the German Federal Ministry for Economic Affairs and Energy (BMWi), supports the sustainable development of the Chinese energy sector by transferring knowledge and experiences of German energy transition (Energiewende) experts to its partner organisation in China: the China National Renewable Energy Centre (CNREC), a Chinese think tank for advising the National Energy Administration (NEA) on renewable energy policies and the general process of energy transition. CNREC is a part of Energy Research Institute (ERI) of National Development and Reform Commission (NDRC). Contact: Anders Hove Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH China Tayuan Diplomatic Office Building 1-15-1 No. 14, Liangmahe Nanlu, Chaoyang District Beijing 100600 PRC [email protected] www.giz.de/china Table of Contents Executive summary 1 1. The Three Norths region features high water-stress, high coal use, and abundant grasslands 3 1.1 The Three Norths is China’s main base for coal production, coal power and coal chemicals 3 1.2 The Three Norths faces high water stress 6 1.3 Water consumption of the coal industry and irrigation of grassland relatively low 7 1.4 Grassland area and productivity showed several trends during 1980-2015 9 2. -
ICARM) in the NOWPAP Region
NOWPAP POMRAC Northwest Pacific Action Plan Pollution Monitoring Regional Activity Centre 7 Radio St., Vladivostok 690041, Russian Federation Tel.: 7-4232-313071, Fax: 7-4232-312833 Website: http://www.pomrac.dvo.ru http://pomrac.nowpap.org Regional Overview on Integrated Coastal and River Basin Management (ICARM) in the NOWPAP Region POMRAC, Vladivostok 2009 POMRAC Technical Report No 5 МС TABLE OF CONTENTS Executive Summary...................................................................................................................................................4 1 Introduction................................................................................................................................................6 1.1 Introduction to Regional Seas Programme and NOWPAP Region.............................................................6 1.2 Brief introduction of Integrated Coastal and River Basin Management in the NOWPAP Region...........................................................................................................................7 1.3 Importance of ICARM procedures for the Region and necessary ICARM strategy in the NOWPAP Region...............................................................................................7 1.4 Geographical scope of NOWPAP area....................................................................................................9 1.5 Institutional arrangements for developing this overview..........................................................................10 2 Part I. -
Introducing Agricultural Engineering in China Edwin L
Agricultural and Biosystems Engineering Technical Agricultural and Biosystems Engineering Reports and White Papers 6-1-1949 Introducing Agricultural Engineering in China Edwin L. Hansen Howard F. McColly Archie A. Stone J. Brownlee Davidson Iowa State University Follow this and additional works at: http://lib.dr.iastate.edu/abe_eng_reports Part of the Agriculture Commons, and the Bioresource and Agricultural Engineering Commons Recommended Citation Hansen, Edwin L.; McColly, Howard F.; Stone, Archie A.; and Davidson, J. Brownlee, "Introducing Agricultural Engineering in China" (1949). Agricultural and Biosystems Engineering Technical Reports and White Papers. 14. http://lib.dr.iastate.edu/abe_eng_reports/14 This Report is brought to you for free and open access by the Agricultural and Biosystems Engineering at Iowa State University Digital Repository. It has been accepted for inclusion in Agricultural and Biosystems Engineering Technical Reports and White Papers by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Introducing Agricultural Engineering in China Abstract The ommittC ee on Agricultural Engineering in China. was invited by the Chinese government to visit the country and determine by research and demonstration the practicability of introducing agricultural engineering techniques, and to assist in advancing education in the field of agricultural engineering. The program of the Committee was carried out under the direction of the Ministry of Agriculture and Forestry, and the Ministry of Education of the Republic of China. The program was sponsored by the International Harvester Company of Chicago, assisted by twenty- four other American firms. Disciplines Agriculture | Bioresource and Agricultural Engineering This report is available at Iowa State University Digital Repository: http://lib.dr.iastate.edu/abe_eng_reports/14 Introducing AGRICULTURAL ENGINEERING in China The Committee on Agricultural Engineering in China. -
Amur Fish: Wealth and Crisis
Amur Fish: Wealth and Crisis ББК 28.693.32 Н 74 Amur Fish: Wealth and Crisis ISBN 5-98137-006-8 Authors: German Novomodny, Petr Sharov, Sergei Zolotukhin Translators: Sibyl Diver, Petr Sharov Editors: Xanthippe Augerot, Dave Martin, Petr Sharov Maps: Petr Sharov Photographs: German Novomodny, Sergei Zolotukhin Cover photographs: Petr Sharov, Igor Uchuev Design: Aleksey Ognev, Vladislav Sereda Reviewed by: Nikolai Romanov, Anatoly Semenchenko Published in 2004 by WWF RFE, Vladivostok, Russia Printed by: Publishing house Apelsin Co. Ltd. Any full or partial reproduction of this publication must include the title and give credit to the above-mentioned publisher as the copyright holder. No photographs from this publication may be reproduced without prior authorization from WWF Russia or authors of the photographs. © WWF, 2004 All rights reserved Distributed for free, no selling allowed Contents Introduction....................................................................................................................................... 5 Amur Fish Diversity and Research History ............................................................................. 6 Species Listed In Red Data Book of Russia ......................................................................... 13 Yellowcheek ................................................................................................................................... 13 Black Carp (Amur) ...................................................................................................................... -
State of the Marine Environment Report for the NOWPAP Region (SOMER 2)
State of the Marine Environment Report for the NOWPAP region (SOMER 2) 2014 1 State of Marine Environment Report for the NOWPAP region List of Acronyms CEARAC Special Monitoring and Coastal Environmental Assessment Regional Activity Centre COD Chemical Oxygen Demand DDTs Dichloro-Diphenyl-Trichloroethane DIN, DIP Dissolved Inorganic Nitrogen, Dissolved Inorganic Phosphorus DO Dissolved Oxygen DSP Diarethic Shellfish Poison EANET Acid Deposition Monitoring Network in East Asia EEZ Exclusive Economical Zone FAO Food and Agriculture Organization of the United Nations FPM Focal Points Meeting GDP Gross Domestic Product GIWA Global International Waters Assessment HAB Harmful Algal Bloom HCHs Hexachlorcyclohexane compounds HELCOM Baltic Marine Environment Protection Commission HNS Hazardous Noxious Substances ICARM Integrated Coastal and River Management IGM Intergovernmental Meeting IMO International Maritime Organization 2 JMA Japan Meteorological Agency LBS Land Based Sources LOICZ Land-Ocean Interaction in the Coastal Zone MAP Mediterranean Action Plan MERRAC Marine Environmental Emergency Preparedness and Response Regional Activity Center MIS Marine invasive species MTS MAP Technical Report Series NGOs Nongovernmental Organizations NIES National Institute for Environmental Studies, Japan NOWPAP Northwest Pacific Action Plan OSPAR Convention for the Protection of the Marine Environment of the North-East Atlantic PAHs Polycyclic Aromatic Hydrocarbons PCBs PolyChloro-Biphenyles PCDD/PCDF Polychlorinated dibenzodioxins/ Polychlorinated dibenzofurans