CAJ | 학술논문

河北平原在严重缺乏淡水的同时,也蕴藏有大量的地下咸水,如何合理开发利用地下咸水已成为缓解河北平原水资源危机和改善生态环境的关键问题.地下咸水的开发利用有直接利用和间接利用两种模式.大量的实验证明,合理开发利用浅层咸水,使咸水水位降低到合理水平,可以:避免地下水的无效蒸发,增加水资源量;增强调蓄能力和抗旱防涝能力;促进浅层咸水淡化,改造盐碱地,改善生态环境;减轻对淡水资源的威胁.经计算,若将地下咸水水位降低到10 m,在避免海水入侵的情况下,河北平原将有54×10~8m3的咸水可以利用.
하북평원재엄중결핍담수적동시,야온장유대량적지하함수,여하합리개발이용지하함수이성위완해하북평원수자원위궤화개선생태배경적관건문제.지하함수적개발이용유직접이용화간접이용량충모식.대량적실험증명,합리개발이용천층함수,사함수수위강저도합리수평,가이:피면지하수적무효증발,증가수자원량;증강조축능력화항한방로능력;촉진천층함수담화,개조염감지,개선생태배경;감경대담수자원적위협.경계산,약장지하함수수위강저도10 m,재피면해수입침적정황하,하북평원장유54×10~8m3적함수가이이용.
Hebei Plain is in a serious lack of fresh water, but contains a large amount of saline groundwater.Thus, exploitation and rational utili-zation of the saline groundwater is vital to mitigate Hebei Plain water crisis and improve the eco-environment There are two utilization modes of saline groundwater including direct and indirect uses.A mass of experiments validated that exploitation and rational utilization of saline shallow groundwater, declining the water level to an optimal depth to reducing water invalid evaporation can increase amount of water resources and stor-age capacity of aquifer, prevent waterlngging or drought, improve groundwater salinity and control the process of soil salination, improve the eco-environment, alleviate the threat for the resource of fresh water.There will be 54×10~8 m~3 of saline groundwater can be used if the water level declines to 10m depth in the Hebei Plain in avoiding the seawater infall.