Numerical study on seawater intrusion into groundwater in Liaodong Bay coastal plain, China

Abstract

In the latest decades, water resource stress and water environment are become seriously year by year which due to the contradiction between supply and demand of water resources become more and more seriously at all of the world. Optimal allocation of the limited water resources is an available method to solve this problem and it has become research hotspot. The local water resource conditions should be evaluated if we allocate the water resource. On the other hand, how to choice the best optimal allocation scheme is also very important. At present, many coastal aquifers in the world experience an intensive seawater intrusion and it is one kind of water environment problem. In the Liaodong Bay coastal plain area, China, the seawater intrusion area is more than 4,000 m 2 with serious intrusion area of nearly 1,500 m 2. In this study, numerical models and coupling mode system have been First of all, I would like to express my deep gratitude to my supervisor Prof. Takao Yamashita for his guidance, supervision and generous support for three years of my PH. D course study in Hiroshima University. I would also like to special thank for his proofreading and valuable comments of the draft manuscripts of my published articles and of this thesis. I would like to thank Prof. Haruyuki Yamamoto, Prof. Yasushi Higo, and for their guidance and valuable comments on this thesis. I would also like to thank the staffs and friends in Graduate School for International Development and Cooperation (IDEC), Hiroshima University for their support of research study and daily life, especially for all members of Environmental Simulator research group is greatly appreciated. I would also like to thank Dr. Han Soo Lee for his guidance for conducting simulation in parallel computer system and for the kind discussions during my PH. D study in IDEC, Hiroshima University. Thanks also goes to all Chinese students in Saijo for their warm support and help. I would like to thank to Prof. Jun Pan and his lab members in Shenyang Jianzhu University, China, who has guided and help me in the Environment engineering field for years which led me to continue my study abroad. I would like to acknowledgment to the supported by the scholarship of the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), and the Global Environmental Leaders Education Program in Hiroshima University funded by the MEXT, Japan. I owe great thanks to my family, my parents, my three bigger brothers，three sister-in-laws and nephews for their support and patience during the past several years of my life. Finally, I am really grateful to giant researchers who lend their shoulders for me to step on.