內(nèi)蒙古霍林河南露天煤礦復(fù)墾區(qū)土壤理化性質(zhì)的研究.pdf

1、分類號S19學(xué)校代碼10129UDC631.4學(xué)號2012204077內(nèi)蒙古霍林河內(nèi)蒙古霍林河南露天煤礦露天煤礦復(fù)墾復(fù)墾區(qū)土壤區(qū)土壤理化性質(zhì)理化性質(zhì)的研究研究StudyofReclamationsoilonPhysicalChemicalPropertiesintheSouthernOpencastMineofHuolinheinInnerMongolia申請人：王澤宇學(xué)科門類：管理學(xué)學(xué)科專業(yè)：土地資源管理研究方向：土地資源整治與保護指

2、導(dǎo)教師：張武文教授論文提交日期：二○一五年六月StudyofReclamationsoilonPhysicalChemicalPropertiesintheSouthernOpencasteMineofHuolinheinInnerMongoliaAbstractTheopencastemineofHuolinheisalargestateowenedcoalenterprisewhosehistyofminingismethen30y

3、ears.ithasmadeanimptantcontributionfthenationallocaleconomicdevelopment.Fromthe90softhetwentiethCenturyithasstartedtodothewkoflreclamationofminingareaachievedremarkableresults.Thepapertookthereclamationareasindifferentpe

4、riodssitesofHuolinheopencastcoalmineastheresearchobjectThroughanalyzinginthelabatyfieldinvestigatingspotsamplingThereclamationsoilonsoilphysicalchemicalpropertieswerestudiedthemajconclusionsofstudyareasfollows:(1)Compare

5、dwiththecontrolareainthedumpingsiteflatsthecontentsofbulkdensityspHavailablepotassiumwereobviouslyincreasedthecontentsofclayganicmatteravailablephosphusavailablenitrogenweredecreasedsignificantly.Inthedumpslopethecontent

6、softhespHavailablepotassiumwereincreasedthecontentofclayganicmatteravailablephosphusavailablenitrogenweredecreasedbutthecontentsofbulkdensityhadnotchangedsignificantly.Intheverticaldirectionofthesection，withtheincreasing

7、ofsoildepththecontentsofganicmatteravailablenitrogenavailablephosphussshowedagraduallydecreasingtendencythecontentsofbulkdensityPHavailablepotassiumsoilclayisontheupwardtrend.(2)Withtheincreasingofreclamationyearsthecont

8、entsofsoilbulkdensitypHavailablepotassiumsweredecreasedgraduallythecontentsofavailablenitrogenganicmatteravailablephosphuswereincreasedgradually.Itshowedthatminereclamationwkhasachievedinitialsuccessthesoilbegantomaturat

9、ethesoilqualityhasimproved.(3)Intheperiodof1~3yearsofreclamationinthesurfacesoilthecontentsofavailablenitrogenganicmatteravailablephosphusclaygrewobviouslyalagerdeclineinthecontentsofpHbulkdensityavailablepotassiumswasap

10、pearing.Intheperiodof3~10yearsofreclamationinthesurfacesoilthecontentsofavailablenitrogenavailablephosphusganicmatterclaygrewataslowpacethedeclineofthecontentsofbulkdensityavailablepotassiumsPHwasnotobvious.Theresultssho