黃河三角洲地下水動(dòng)態(tài)及其生態(tài)效應(yīng).pdf

1、110310d3分類號(hào)————』越——一uDc(DDC)——墼L—一河浮大專學(xué)號(hào)：』塑盟盟Q虹一密級(jí)：———孟一碩士學(xué)位論文黃河三角洲地下水動(dòng)態(tài)及其生態(tài)效應(yīng)范曉梅指導(dǎo)教師姓名基葒盒熬援通瀣盍堂盤塞盔瓷遵坐陸直—』L—直—衛(wèi)L—蠱—舅L_j—』L—一剖面縫盟丑雖生雷型堂瞳地理型坐皇矗透班宜壓韭jL立』虬衛(wèi)』己立』L繭—U—昱—一申請(qǐng)學(xué)位級(jí)別———型H二—一專業(yè)名稱盛室坐屋盤壹短論文提交日期：墊虹至上且論文替辯日期：2嫂Z笙3目22日學(xué)位投

2、于單位和日期：西握太堂2QQZ生』目答辯委員會(huì)主席：』吐盅』l控一論文評(píng)閱人：垃垡堊越授張最鎣且齟2007年3月中國南京AbstractAsanimportantenvironmentalelement，groundwater’SecologicaleffectCarlnotbeneglectedKnowledgeofgroundwaters”temisapre—requisiteforupto—dateintegratedlandan

3、dwatermanagementTherelationshipbetweengroundwaterlevel，recharge，dischargeandvegetationcoverisintricateThevegetationdistributionshowsobviouslyspatialdifferenceandtemporalvarianceundertheinfluenceofmicro—topographygroundwa

4、terdepth，andsoilsalinityAmethodologyispresentedforassessingthevegetation—groundwaterrelationship，includinggroundwatermodel，spatialanalysiswithGIS，vegetationmaptranslatedfromremotesenseimageandvegetationordinationAfterana

5、lyzingthevegetationandsitesurveydatathevegetationtypeinYRD(YellowRiverDelta)Canbesubdividedintothreecategoriescorrespondingtogroundwaterdepthandsalinitytolerant：forest，economicplants，salttolerantplantsAftercombiningtheve

6、getationdistributionwiththegroundwaterdepth，someprimaryrelationshipcanbeacquiredDCCAmethodisusedtoquantifythisrelationshipandtheresultsindicategroundwaterdepthisthemostinfluentialenvironmentalfactorThreeecologicalsub—zon

7、esaredelineatedonthebasisofye&FSoflandIneachzone，differentvegetationcomposingfeaturesandecologicalproblemsingroundwaterrecharge，transition，dischargeareasarediscussedseparatelyusingspatialanalysisofGISFromthepointofground

8、watertheecologicalproblemsinYRDCanbeconcludedas：lackoffreshwateringroundwaterrechargeareas，soilsalinizationingroundwatertransitionalareas，andseawaterintrusioningroundwaterdischargeareasGroundwaterrelatedmanagementmeasure

9、sarebroughtforwardatthelastpartofthispapersuchaswaterconveyancealongrivercourse，controllingirrigationandalleviatingsalinjzationwetlandrestorationThepotentialsituationafterimplementingthemeasuresissimulatedbygroundwNermod