河北省太行山石灰?guī)r區(qū)植被恢復(fù)關(guān)鍵技術(shù)研究.pdf

1、分類號(hào)：Sl塾：4密級(jí)：坌玨Y9336∞單位代碼：!QQ豎學(xué)號(hào)：—030209—030209河北省太行山石灰?guī)r區(qū)植被恢復(fù)關(guān)鍵技術(shù)研究ThetechnologyStudyofVegetationRecoveryinthelimestoneregioninTaihangMountaininHebei學(xué)位申請(qǐng)人：弓運(yùn)澤指導(dǎo)教師：周大邁研究員學(xué)科專業(yè)：植物營(yíng)養(yǎng)學(xué)學(xué)位類別：農(nóng)學(xué)碩士授予單位：河北農(nóng)業(yè)大學(xué)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