微山湖区生态现状调查及可持续发展对策研究

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1、微山湖噬生态现状iJ，j盘技司持续发胜对策研究AbstractLakeWeishanliesinthesouthwestofShandongProvince．whichisthefifthlargestfleshwaterlakeinourcountry．Thislakebelongstothecontinentalmonsoonclimateareaoftemperatezone．whosewatersareaisabout1266km2．Theaveragetotalamountofwaterresourceayearis16．76+106m

2、3．Itsclimaticconditionsaresuitableformanykindsofaquaticandwaterplants，whichgrowrapidly,reproducequickly,andthenaturalresourcesareabundant．LakeWeishanhaveformeditsownuniqueecosystemjnlonghistoricaIsuccessionadvancement．Thisecosystemtakesself-sufficiencytypeassubject，maintainin

3、gbenigncyclebasicallyatthestageoflongagriculturalproduction．Since80。Softhe20thcentary,itcausedtheecologicalenvironmentofthelakeregionofWeishanobviouslyworsenbecauseofallkindsofcontaminativemiddleandsmallscaleenterprisesdevelopingunboundedly,themassesblindlyopeningupwastelandw

4、et，plunderingresources，SoonlysomewaterareareachtoIII1everwaterqualityofthewhole】ake．most1akewaterareseriouslypolluted；Thefishpopulationandthequantityreducesrapidly,thefishingforfishagebecomesmall．Theareaofnaturalwetlandfallssharply,theecologicalfunctionobviouslydrops；Thelaked

5、istrictsiltsupseriously,thebigareabog．itcouldnotdevelopscientificallyintbelakeregion，itsproductionwasindisorder，inaddition，thecoalwasexpandingconstantlycollapsing，thenaturalecologicalenvironmentwasdestroyedseriously,theecologicalbearingcapacityisdroppingconstantlyinLakeWeisha

6、n．Thisresearch，ontheinvestigatedfoundationofhistoricaldevelopment，naturalresourcesstateandecosystemcurrentsituationofLakeWeishan，combinethebasicprincipleofthesystematictheoryandsustainabledevelopmenttheorywithconcretepracticeoflakeregionecologicalconstructionofWeishan，analyse

7、theprimaryandsecondaryreasonofecologyworsensofLakeWeishanscientifically,andpredictthefavorableandadverseeffectsoftheprojectofeastlineofSouth-NorthWaterDiversionafterbeing4山东农业人学倾j：争业学位论史implementedprospectivelytolakeregionecologyofWeishan．Itsfavorablefunctionareasfollows：Thew

8、atercapabilityincreases，waterqualitycanbeexpectedtobeimproved；Thewet