地下水:面临威胁的资源(续) |
| |
引用本文: | 孙宇.地下水:面临威胁的资源(续)[J].世界环境,1997(2):42-46. |
| |
作者姓名: | 孙宇 |
| |
摘 要: | Groundwater:AThreatenedResource(Continuation)UNEPAbstract:Inmanyareasoftheworld,groundwatersourcesareunderthreatfromhumanactivities.Thesethreastaketwomainforms:theinadequatecontrolofgroundwateravstracton,resultingusuallyinsomeformofover-exploitation:andthepollutionofgroundwaterresources,usuallybycities,industryora-griculture,Boththreatscanresultineitherreversitbleorirreversibleadmage,Inthefirstcase,matterscanbecorrectedandonlythequestionofcostsisinvolved.Inthesecondcase,costsarealsonvolv…
|
关 键 词: | 水污染 地下水 水资源 保护 |
本文献已被 CNKI 维普 等数据库收录! |
|