REGIONAL OVERVIEW on River and Direct Inputs of Contaminants Into the Marine and Coastal Environment In
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Three Large Historical Landslide Dams and Outburst Disasters in the North Fossa Magna Area, Central Japan
International Journal of Erosion Control Engineering Vol.5, No.2, 2012 Disaster Report Three Large Historical Landslide Dams and Outburst Disasters in the North Fossa Magna Area, Central Japan Kimio INOUE1, Toshio MORI2 and Takahisa MIZUYAMA3 1Sabo Frontier Foundation (Sabo-Kaikan, Hirakawa-cho 2-7-4, Chiyoda-ku, Tokyo 102-0093, Japan) Email: [email protected]) 2Sabo Frontier Foundation (Sabo-Kaikan, Hirakawa-cho 2-7-4, Chiyoda-ku, Tokyo 102-0093, Japan) 3Division of Forest Science, Graduate School of Agriculture, Kyoto University (Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan) Large landslides or debris flows caused by heavy rainfall or earthquakes often block rivers in mountainous areas and form landslide dams. The area upstream of the landslide dam is submerged under water and the downstream area is flooded when the landslide dam breaks. In recorded history, as many as 22 landslide dams have formed upstream of the Shinano River and the Hime River, in the northern part of Nagano Prefecture in central Japan, and all except three have subsequently broken. This abundance of landslide dams is probably caused by the geotectonic background of this area, which is located at the western end of the “Fossa Magna” major tectonic line. In this study, we examined three large historical landslide dams and outburst disasters in the north Fossa Magna area. Keywords: Landslide Dam, Debris Avalanche, Tobata Landslide, Zenkoji Earthquake, Mt. Iwakura Landslide 1. INTRODUCTION Table 1 List of landslide dams documented in northern Nagano Prefecture (Mizuyama et al, 2011) No. Landslide Dam Date Formed Cause Failure Timing River We have studied the history, formation, and 1 Aoki Lake 30,000 years ago Unknown Continuing today Takase R. -
Empires in East Asia
DO NOT EDIT--Changes must be made through “File info” CorrectionKey=NL-A Module 3 Empires in East Asia Essential Question In general, was China helpful or harmful to the development of neighboring empires and kingdoms? About the Photo: Angkor Wat was built in In this module you will learn how the cultures of East Asia influenced one the 1100s in the Khmer Empire, in what is another, as belief systems and ideas spread through both peaceful and now Cambodia. This enormous temple was violent means. dedicated to the Hindu god Vishnu. Explore ONLINE! SS.912.W.2.19 Describe the impact of Japan’s physiography on its economic and political development. SS.912.W.2.20 Summarize the major cultural, economic, political, and religious developments VIDEOS, including... in medieval Japan. SS.912.W.2.21 Compare Japanese feudalism with Western European feudalism during • A Mongol Empire in China the Middle Ages. SS.912.W.2.22 Describe Japan’s cultural and economic relationship to China and Korea. • Ancient Discoveries: Chinese Warfare SS.912.G.2.1 Identify the physical characteristics and the human characteristics that define and differentiate regions. SS.912.G.4.9 Use political maps to describe the change in boundaries and governments within • Ancient China: Masters of the Wind continents over time. and Waves • Marco Polo: Journey to the East • Rise of the Samurai Class • Lost Spirits of Cambodia • How the Vietnamese Defeated the Mongols Document Based Investigations Graphic Organizers Interactive Games Image with Hotspots: A Mighty Fighting Force Image with Hotspots: Women of the Heian Court 78 Module 3 DO NOT EDIT--Changes must be made through “File info” CorrectionKey=NL-A Timeline of Events 600–1400 Explore ONLINE! East and Southeast Asia World 600 618 Tang Dynasty begins 289-year rule in China. -
Biogeography and Evolution of the Carassius Auratus-Complex in East
Takada et al. BMC Evolutionary Biology 2010, 10:7 http://www.biomedcentral.com/1471-2148/10/7 RESEARCH ARTICLE Open Access Biogeography and evolution of the Carassius auratus-complex in East Asia Mikumi Takada1,2*, Katsunori Tachihara1, Takeshi Kon2, Gunji Yamamoto2, Kei’ichiro Iguchi3, Masaki Miya4, Mutsumi Nishida2 Abstract Background: Carassius auratus is a primary freshwater fish with bisexual diploid and unisexual gynogenetic triploid lineages. It is distributed widely in Eurasia and is especially common in East Asia. Although several genetic studies have been conducted on C. auratus, they have not provided clear phylogenetic and evolutionary descriptions of this fish, probably due to selection bias in sampling sites and the DNA regions analysed. As the first step in clarifying the evolutionary entity of the world’s Carassius fishes, we attempted to clarify the phylogeny of C. auratus populations distributed in East Asia. Results: We conducted a detailed analysis of a large dataset of mitochondrial gene sequences [CR, 323 bp, 672 sequences (528 sequenced + 144 downloaded); CR + ND4 + ND5 + cyt b, 4669 bp in total, 53 sequences] obtained from C. auratus in East Asia. Our phylogeographic analysis revealed two superlineages, one distributed mainly among the Japanese main islands and the other in various regions in and around the Eurasian continent, including the Ryukyus and Taiwan. The two superlineages include seven lineages with high regional specificity that are composed of endemic populations indigenous to each region. The divergence time of the seven lineages was estimated to be 0.2 million years ago (Mya) by a fossil-based method and 1.0-1.9 Mya by the molecular clock method. -
Gu Yuxuan, Shijiazhuang Foreign Language School Shijiazhuang, Hebei Province, China China, Factor 6: Sustainable Agriculture
Gu Yuxuan, Shijiazhuang Foreign Language School Shijiazhuang, HeBei Province, China China, Factor 6: Sustainable Agriculture China: Sustainable Land Use on Sanjiang Plain Located in the northeast corner of China, Sanjiang Plain is in the administrative divisions of Heilongjiang Province. Amur River, Ussuri River and Songhua River joining together, with their waves impacting the soil, formed this flat and fertile alluvial plain whose total area is 108,900 square kilometers. The surface is wet and always has surplus water because of the broad and flat terrain. The cold and wet climate condition causes heavy precipitations in summer and autumn. Rivers run slowly with sudden flood peak periods. Seasonal freezing-thawing soil covers the whole plain. All those account for large areas of swamp water and vegetation which involves 2.4 million hectares of swamp and marsh soil, ranking China’s largest swamp area. Ten wetland nature reserves were set up, attracting many international ecological and environmental protection organizations. The region, which is covered with 10 to 15 cm of water and the total quantity is 18.764 billion cubic meters, is home to many first-class national protected animals. For instance, the red-crowned cranes in the IUCN (World Conservation Union) red list, the Chinese merganser and the Siberian tiger all find their habit in this plain. Sod layer soils are thick, generally 30 to 40 cm. In the area lies the most fertile black earth in China, and it’s one of the three black earth terrains in the world. High in organic matter, the organic matter is 3% to 10%. -
Water Situation in China – Crisis Or Business As Usual?
Water Situation In China – Crisis Or Business As Usual? Elaine Leong Master Thesis LIU-IEI-TEK-A--13/01600—SE Department of Management and Engineering Sub-department 1 Water Situation In China – Crisis Or Business As Usual? Elaine Leong Supervisor at LiU: Niclas Svensson Examiner at LiU: Niclas Svensson Supervisor at Shell Global Solutions: Gert-Jan Kramer Master Thesis LIU-IEI-TEK-A--13/01600—SE Department of Management and Engineering Sub-department 2 This page is left blank with purpose 3 Summary Several studies indicates China is experiencing a water crisis, were several regions are suffering of severe water scarcity and rivers are heavily polluted. On the other hand, water is used inefficiently and wastefully: water use efficiency in the agriculture sector is only 40% and within industry, only 40% of the industrial wastewater is recycled. However, based on statistical data, China’s total water resources is ranked sixth in the world, based on its water resources and yet, Yellow River and Hai River dries up in its estuary every year. In some regions, the water situation is exacerbated by the fact that rivers’ water is heavily polluted with a large amount of untreated wastewater, discharged into the rivers and deteriorating the water quality. Several regions’ groundwater is overexploited due to human activities demand, which is not met by local. Some provinces have over withdrawn groundwater, which has caused ground subsidence and increased soil salinity. So what is the situation in China? Is there a water crisis, and if so, what are the causes? This report is a review of several global water scarcity assessment methods and summarizes the findings of the results of China’s water resources to get a better understanding about the water situation. -
Japan Geoscience Union Meeting 2009 Presentation List
Japan Geoscience Union Meeting 2009 Presentation List A002: (Advances in Earth & Planetary Science) oral 201A 5/17, 9:45–10:20, *A002-001, Science of small bodies opened by Hayabusa Akira Fujiwara 5/17, 10:20–10:55, *A002-002, What has the lunar explorer ''Kaguya'' seen ? Junichi Haruyama 5/17, 10:55–11:30, *A002-003, Planetary Explorations of Japan: Past, current, and future Takehiko Satoh A003: (Geoscience Education and Outreach) oral 301A 5/17, 9:00–9:02, Introductory talk -outreach activity for primary school students 5/17, 9:02–9:14, A003-001, Learning of geological formation for pupils by Geological Museum: Part (3) Explanation of geological formation Shiro Tamanyu, Rie Morijiri, Yuki Sawada 5/17, 9:14-9:26, A003-002 YUREO: an analog experiment equipment for earthquake induced landslide Youhei Suzuki, Shintaro Hayashi, Shuichi Sasaki 5/17, 9:26-9:38, A003-003 Learning of 'geological formation' for elementary schoolchildren by the Geological Museum, AIST: Overview and Drawing worksheets Rie Morijiri, Yuki Sawada, Shiro Tamanyu 5/17, 9:38-9:50, A003-004 Collaborative educational activities with schools in the Geological Museum and Geological Survey of Japan Yuki Sawada, Rie Morijiri, Shiro Tamanyu, other 5/17, 9:50-10:02, A003-005 What did the Schoolchildren's Summer Course in Seismology and Volcanology left 400 participants something? Kazuyuki Nakagawa 5/17, 10:02-10:14, A003-006 The seacret of Kyoto : The 9th Schoolchildren's Summer Course inSeismology and Volcanology Akiko Sato, Akira Sangawa, Kazuyuki Nakagawa Working group for -
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 -
Flood Loss Model Model
GIROJ FloodGIROJ Loss Flood Loss Model Model General Insurance Rating Organization of Japan 2 Overview of Our Flood Loss Model GIROJ flood loss model includes three sub-models. Floods Modelling Estimate the loss using a flood simulation for calculating Riverine flooding*1 flooded areas and flood levels Less frequent (River Flood Engineering Model) and large- scale disasters Estimate the loss using a storm surge flood simulation for Storm surge*2 calculating flooded areas and flood levels (Storm Surge Flood Engineering Model) Estimate the loss using a statistical method for estimating the Ordinarily Other precipitation probability distribution of the number of affected buildings and occurring disasters related events loss ratio (Statistical Flood Model) *1 Floods that occur when water overflows a river bank or a river bank is breached. *2 Floods that occur when water overflows a bank or a bank is breached due to an approaching typhoon or large low-pressure system and a resulting rise in sea level in coastal region. 3 Overview of River Flood Engineering Model 1. Estimate Flooded Areas and Flood Levels Set rainfall data Flood simulation Calculate flooded areas and flood levels 2. Estimate Losses Calculate the loss ratio for each district per town Estimate losses 4 River Flood Engineering Model: Estimate targets Estimate targets are 109 Class A rivers. 【Hokkaido region】 Teshio River, Shokotsu River, Yubetsu River, Tokoro River, 【Hokuriku region】 Abashiri River, Rumoi River, Arakawa River, Agano River, Ishikari River, Shiribetsu River, Shinano -
China's Agricultural Water Scarcity and Conservation Policies
China’s Agricultural Water Scarcity and Conservation Policies Bryan Lohmar Economist, Economic Research Service, USDA Water Problems in China 6000 • Increasing water 5000 4000 demand 3000 bcm 2000 – Non-agricultural 1000 – Agricultural 0 1949 1978 2003 Year Agriculture Industry Dom e s tic • Signs of depleted water resources – Centered in northern China – Dry surface systems – Falling water tables – Acute pollution The Debate Over How China’s Water Problems May Affect Agriculture The Dark Side The Bright Side China will be China has the capacity confronted with a to adapt and adjust to severe water crisis that the lower water will significantly supplies while reduce irrigated maintaining or even acreage and increasing irrigated agricultural production acreage Future Agricultural Production will Depend on New Policies and Institutions • Past focus of policies and institutions was to exploit water as a cheap resource to boost agricultural and industrial production • Current changes emphasize more rational water allocation and water conservation Today’s Presentation • Introduce water shortage problems in China • Provide an overview of our findings: – Ground water issues – Surface water issues – Water pricing and conservation incentives • Discuss implications for agricultural production, rural incomes, and trade Water Scarcity is Centered in Northern China Huang (Yellow) River Basin Hai River Basin Huai River Basin The Hydrology of the North China Plain - 1 Huang (Yellow) River Basin Hai River Basin Huai River Basin The Hydrology of the North -
ESJ67 Program Web.Pdf
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