1、分類號：Sl塾：4密級：坌玨Y9336∞單位代碼：!QQ豎學號：—030209—030209河北省太行山石灰?guī)r區(qū)植被恢復關鍵技術研究ThetechnologyStudyofVegetationRecoveryinthelimestoneregioninTaihangMountaininHebei學位申請人：弓運澤指導教師：周大邁研究員學科專業(yè)：植物營養(yǎng)學學位類別：農學碩士授予單位：河北農業(yè)大學答辯日期：二OO六年六月十五日TheTech

2、nologyStudyofVegetationRecoveryintheLimestoneRegioninTaihangMountaininHebeiAuthor：GongYunzeMajor：PlantNutritionadviser：ZhouDa—maiAbstractInallusiontotheproblemsofthelimestoneregioninTaihangmountaininHebei：thesoilwasdryan

3、dpoor，thesoildepthwasthinandthecoverrateofvegetationwaslow，throughinvestigationonthespotandfarmexperimentinDaqingmountaininBeishuiyuviHageinManchengcounty，studiedthetechnologyofvegetationrecoveryinthelimestoneregioninTai

4、hangmountainItcanbeconcludedthat：1Throughmeasuredthewatercontentofsoilindifferentsoildepthindifferentgradients、slopingdirectionsandsoilthicknessoftheseparateslopeterraceinthelimestoneregioninTaihangmountainIt’Sfoundthatt

5、hesmallerthegradientsoftheseparateslopeterracethestrongerthewaterandsoilmaintenance；thebiggerthegradientsthesmallerthedifferenceofwatermaintenancebetweenslopefacingsouthandnorth；thesmallerthegradients，thesmallerthediffer

6、enceofwatercontentbetweenterraceandhillside，butinatrend，thewatermaintenanceofterraceWasstrongerthanhillside2Throughmeasuredthewatercontentofsoilindifferentoverlaymodes、soildepth，it’Sfoundthatthedifferencebetweenfilmandst

7、rawoverlaymodeswassmallinwatermaintenanee；differentslopingdirectionsandsoildepthWerenotimportantt0thewatermaintenanceinsoil；thewatermaintenanceinthetei／ace也athadbeenOVerlaywasstrongerthantheterrace血athadnotSothetwo曲ovepo

8、intsprovedthat，inthelimestoneregioninTaihangmountain，constructedtheseparateslopeterraceandtakenoverlayOilgroundin520gradient，thewatermaintenancecanbeimproved，comparedtothehillside3Throughinvestigatedonthespot，itcanbeconc

9、ludedthatcomparedtotheun—controUedregion，forincreasingthewatercontentandnulaitiuninsoilandbiomass，theregionofcontrolledfouryearsandsevenyearshadgreatprogresses，thecharactersandnutritionofsoilimproved，thebiomassincreased，

10、vegetationhadbeenresumedeffectively4itcallbeconcludedthat，byfarmexperimentforimprovingtlleheightandthestem’Snumber，chemicalfertilizerwagbetterthanorganicfertilizerthecombinationofchemicalandorganicandchemicalonlycanprodu