天津城市发展中的若干环境地质问题

27320049GEOLOGICALSURVEYANDRESEARCHVol.27No.3Sep.2004(1.,100083;2.,300191):,1000mm4080.48km2,,,,,,,,:;;:X21:A:1007-6956(2004)03-0164-05:2004-06-27:(200112400003):(1960-),,,,,,,,,11959,,,1000mm4080.48km2,195920002.85m,3.14m,2.89m89km21987,,,1991200010,10mm,1520mm,104070mm,,,22.08108m3/a,7.12108m3/a,4.70108m3/a,,0.51104m3/km2a,,,,,19601982,(1965117)3.15m;196019791.2m,101m,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,,,22.11958,199923.4104ha,66%,11.5104ha,11.9104ha199119984.611087.39108m3/a,6.15108m3/a,40.4%,,24,,,18,85%,79%,29%;20,7,199220,110,,1971,,19959,140,38NH4NN02NCOD90%,,19926128,0.0120.360mg/L,0.061mg/L,,46.9%,7.2[1],,,,,,,:,74.7%[2];,,,,,,,,[3][4],,,2.25613:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,260104m3/a,10161,,,60,,,,,,,,,,3,,,,,1924150000,5247km2,;,20001718km2,1337km2,381km2,32%,29.4%,4.7%,33.9%,,Brocketal[5],,34,70%80%,PoianiJohnson[6],36,17%29%,12%[7],(/10%,123),50,l,100mm,,,,,,,,,,,,,,,,10,4,620km2,20001566127©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.[8],,,,,,,,,,,,,,,,,,[9],,,,,,,,48980km22g/L40200m,,,35m,65m,10g/L,1020g/L,,,,5g/L,,79g/L,,,,,2002,,4303km2,225km2,635km2,3443km2,,,,,13%,,[10],,,[11],,,5,,,,,,,,,:[1],,.Pb[J].,2002,31(1):8992.[2],.[J].,1999,12(6):14.[3]U.S.NRC.Innovationsingroundwaterandsoilcleanup7613:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.[A].Concepttocommercialization[C].NationalAcademyPress,Internet,1997:80166.[4]U.S.NRC.Whendoesitwork?[A].SituBioremedi2ation[C].NationalAcademyPress,Internet,1993:1662.[5]BrockTCM,VierssanWV.Climaticchangeandhy2drophtedominatedcommunitiesininlandwetlandecosys2tem[J].WetlandEcologyandManagement,1992,2:3749.[6]PoianiKA,JohnsonWC.Potentialeffectsofclimatechangeonasemipermanentprairiewetland[J].Climaticchange,1993,24:213232.[7],.[A]..[C].:,1993.[8].[J].,2000,19(2):7880.[9].[J].,1998,58(4):710.[10].[J].,1999,17:2023.[11],.[J].,2001,23(1):1214.ProblemsofEnvironmentalGeologyontheUrbanizationinTianjinCityWANGJiabing(1.FacultyofWaterResourcesandEnvironment,ChinaUniversityofGeosciences,Beijing100083;2.TianjinInstituteofGeologicalSurvey,Tianjin300191)Abstract:WiththeaccelerationofeconomicdevelopmentinTianjin,theproblemsofurbanenviron2mentalgeologybecomemoreandmoreserious.Thereare4080.48km2landsubsidingmorethan1000mmbecauseofthegroundwateroverpumping.Andseveralsubsidingcentershavebeenformedalready.Thegroundsubsidencelosttheelevation,anditlettheflooddischargemoredifficult,resultedinwateraccumulatingafterheavyrain.Itdecreasedtheseashorepreventingthestormsurge,andalsodamagedthepipenetunderthecity.Thewastewaterirrigation,industydrainageandoilexploitationetc.madethesoilandgroundwaterpolluted,directlydamagedthehealthofthepeople.Theagriculturedevelopingandthecityconstructionspeededupthemarshshrinking,madethemarshecologicalenvironmentdeterioration.Theenvironmentgeologicalproblemsabovementionedwillre2strictTianjinsocioeconomicaldevelopment.Sotheauthorputforwardsomesuggestionstoavoidandreducethesehazards.Keywords:environmentalgeology;surfacesubsidence;soilpollution;marshshrinking86127©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.