25149.內(nèi)蒙古典型草原區(qū)小流域產(chǎn)流過程研究

1、分類號P333.5學(xué)校代碼10129UDC631學(xué)號2009204098內(nèi)蒙古典型草原區(qū)小流域產(chǎn)流過程研究TheRunoffProcessintheSmallWatershedoftheTypicalSteppeRegioninInnerMongoliaProvince申請人：鄒暑光學(xué)科門類：管理學(xué)學(xué)科專業(yè)：土地資源管理研究方向：城鄉(xiāng)土地規(guī)劃與管理指導(dǎo)教師：秦富倉教授論文提交日期：二〇一二年五月TheRunoffProcessinthe

2、smallWatershedoftheTypicalSteppeRegioninInnerMongoliaProvinceAbstractIndertoresearchthedifferencesofsoilinfiltrationofdifferentvegetationtypesinDuoLuncountytypicalstepperegionSoilinfiltrationprocesswassimulatedtoanalysis

3、theiracteristicsdifferencesthroughfieldinvestigationsoilinfiltrationtestmanualwaterdisgeexperiment.onthebasisofsoilinfiltrationstudyThispaperdiscussestheprocessmechanismofbasinrunoffthepredictionmodelwasconstructedftheth

4、eeticalbasisofthedisgerunoffrainwaterresourcesuse.Theresultsindicatedthat:(1)Theinitialstablesoilinfiltrationrateindifferentvegetationtypesslopewereinthesameder:sunnyslopegrassl＞thetopofslopegrassl＞theslopegrassl＞theroof

5、ofslopegrassl＞theslopeprunusarmeniaca＞theshadyslopeshrublespedezaTherangeofwhichwasabout3.578to4.854mmmin0.813to1.072mmmin.(2)TherewassignificantdifferenceofSoilinfiltrationprocess.thesoilinfiltrationrateofgrasslfallsdow

6、nslowlyintheearlystagerapidlyafter5minutesuntilitreachesthestableinfiltrationratebuttherateofinfiltrationofthefestlwasalwaysdownslowly.(3)ThesoilinfiltrationacteristicsofdifferentvegetationtypeinDuoLuncountytypicalsteppe

7、regioncanwellreflecteddescribedwithHtonmodelKostiakovmodelPhilipmodelButhtonmodelgettedthebestfittingeffectThevalueofR2wereintherangeof0.813to0.870，0.916to0.972，0.693to0.775.(4)Alongwiththeincreaseofraininessrunoffdurati

8、onisreducedgraduallyrunoffdeeprunoffcoefficientincreasegraduallyineachsamples.RunoffpredictionmodelwereconstructedbasedonmotionwavemodelHtoninfiltrationmodelinthestudyareatheresultwasthathadhigherprecision.Keywds:Ｔypical