HR: 0800h
AN: H21F-1091    [Abstracts]
TI: Environmental problems associated with groundwater flow system in the North China Plain
AU: * Chen, J
EM: chenjianyao@hotmail.com
AF: Sun Yat-sen University, 135 West Xin Gang Road, Guangzhou, 510275 China
AU: Tang, C
EM: cytang@faculty.chiba-u.jp
AF: Chiba University, Yayoi 1-33, Inage, Chiba, 263-8522 Japan
AU: Sakura, Y
EM: ysakura@earth.s.chiba-u.ac.jp
AF: Chiba University, Yayoi 1-33, Inage, Chiba, 263-8522 Japan
AU: Fukushima, Y
EM: yoshi@chikyu.ac.jp
AF: Research Institute for Humanity and Nature, 335 Takashima-cho, Kamigyo-ku, Kyoto, 602-0878 Japan
AU: Taniguchi, M
EM: makoto@chikyu.ac.jp
AF: Research Institute for Humanity and Nature, 335 Takashima-cho, Kamigyo-ku, Kyoto, 602-0878 Japan
AB: Environmental problems in the North China Plain (NCP) have arisen since 1980s, when the national economy started to recover from a long time of stagnation. Population, resource, environment and development are four factors closely integrated, and environmental problems may occur when these four factors are not well balanced. Groundwater, as itself a factor of environment and resource, plays a key role in the sustainability of a certain area. Located in the eastern part of China, the North China Plain (NCP) is a very important region of agriculture in China. The project of water transfer from the South to the North was initiated in 2002 solve the water shortage problem of the area, and great environmental impacts on water cycle and groundwater flow system are to be expected. Three environmental problems are to be discussed in a detail: nitrate pollution in the groundwater, salination, and groundwater level draw down. Many environmental problems are closely related to groundwater in terms of either flow system or resource in the North China Plain. The accumulation of salt in the unsaturated zone and regional salination may become worse under the condition of extra water transferred from the south though the groundwater level is expected to recover to some extent. Nitrate pollution pattern and nitrate transport along groundwater flow system under new condition remain to be resolved as complicated biochemical processes are involved in nitrogen cycle.
DE: 1829 Groundwater hydrology
DE: 1831 Groundwater quality
DE: 1832 Groundwater transport
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting