| Co-Investigator(Kenkyū-buntansha) |
SHIMAO Minoru Keio University, Institute of Language and Arts, Lecturer(Ms), 言語文化研究所, 講師 (90255589)
HIRAI Yukihiro Sensyu University, Faculty of Arts, Professor, 文学部, 教授 (30181134)
MATSUMOTO Jun The University of Tokyo, Science School, Associate Professor, 大学院・理学系研究科, 助教授 (80165894)
OHKURA Hiroshi National Research Institute for Earth Science and Districts Prevention, Researcher, 研究職
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| Research Abstract |
In fact, with the position and the distribution in Vietnamese economy, the Red River Delta has an important role. People are trying to understand more about the formation of the Delta. The natural environmental conditions in present years in the Red River Delta have being considered and researched properly. There is a relation between the geological position, river dynamics, climate and formation of the Delta. With the influence of the embankment system had been set up from a lomg time, the formation of the Delta has been affected by humans activities. As a result, there is a mangrove forest and mangrove ecosystem in the river mouths. Sea level changing had had a relation with the formation of the Delta, now it also affects on the coastal area, changes the coastline by erosion. Climatic changes with the impact of global warming affect directly on the environmental condition of the low land in the coastal area. The lack of precipitation in summer causes the decrease in river discharge, was followed by the salinity intrusion in the river mouths changing in the coast, in where there is increase in sea product cultivation's square. It is necessary to study and research about, the changes of natural environment, gain knowledge and estimate its influences. It also helps people to live in matural environment and improve it.
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