河套濕地水文和植被特征及水體凈化潛力.pdf

1、分類號X524學(xué)校代碼10129UDC502504學(xué)號2010304009河套濕地水文和植被特征及水體凈化潛力HydrologicalFeatureVegetationacteristicsofWetlsPotentialsfWaterPurificationinHetaoArea申請人：胡楊學(xué)科門類：農(nóng)學(xué)學(xué)科專業(yè)：草業(yè)科學(xué)研究方向：植被恢復(fù)與城鄉(xiāng)綠化指導(dǎo)教師：李青豐教授論文提交日期：二〇一六年六月HydrologicalFeature

2、VegetationacteristicsofWetlsPotentialsfWaterPurificationinHetaoAreaAbstractInnerMongoliaHetaoIrrigationDistrictistheimptantagriculturalproductionbaseinNthernChina.Howeverduetorapidagriculturaldevelopmentintheirrigationar

3、eatheabuseuseoffertilizerpesticidewhichcauseswaterresourcetosufferseverethreats.Theareaboastsrichwetlresourcesthatshowuniqueadvantagesintreatingagriculturalpollution.TherefeitisurgenttounderstthewetlconditionsinHetaoarea

4、analyzehydrologyvegetationotheracteristicsofwetlsdiscussremovingalargeamountofNPothernutrientsinfarmsofHetaoIrrigationDistrictthroughtransfmingnaturalwetlsconstructingartificialwetlstherebyreducingthepollutionpressurecau

5、sedbyagriculturalpollutionloadonWuliangsuSeatheYellowRiver.ThispapertakesnaturalartificialwetlsinInnerMongoliaHetaoIrrigationDistrictastheresearchobject.Withthemethodsofsatelliteremotesensinginterpretationfieldsurveyonve

6、getationwaterqualitymonitingetc.statisticalanalysisisconductedontheexistingwetlresourcesintheHetaoIrrigationDistricttoanalyzethefeaturesofhydrologywatervegetationevaluatethepurificationpotentialofwetltosolvefarmreturnwat

7、erpollution.Thenwaterpurificationtestiscarriedoutonthefarmreturnwaterfromtransfmednaturalwetlsnewlybuiltartificialvegetation.Mainresultsinclude:1.TherearealotofwetlresourcesinHetaoIrrigationDistrict.Satelliteremotesensin

8、ginterpretationshowsthequantityofwetlsisabout875coveringanareaof700km2ofwhich333.48km2isanareaofWuliangsuSea.ThewetllscapetakesonatendencytofragmentswhiletheareaofWuliangsuSeaisrelativemestable.2.WetlsinHetaoIrrigationDi

9、strictconsistofsimpleplantsvegetations.Mostwetlsarecoveredwithreedswaterbamboootheremergentplants.SubmergedplantsinlakelikewetlsmainlyproduceP.crispusmainzalgaebamboomalaianusetc.Butitsdistributionshowsregionalacteristic