资源描述：
《Effects of land use on temporal spatial variability of soil water and soil water conservation》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ActaAgriculturaeScandinavicaSectionBSoilandPlantScience,2011;61:113ORIGINALARTICLEEffectsoflanduseontemporal-spatialvariabilityofsoilwaterandsoil-waterconservation1,2,341,56CHENZENG,MINGANSHAO,QUANJIUWANG&JUNZHANG1StateKeyLaboratoryofSoilErosionandD
2、rylandFarmingontheLoessPlateau,InstituteofSoilandWaterConservation,2ChineseAcademyofSciencesandMinistryofWaterResources,Yangling712100,China,KeyLaboratoryofTibetanEnvironmentChangesandLandSurfaceProcesses,InstituteofTibetanPlateauResearch,ChineseAcade
3、myofSciences,34Beijing100085,China,GraduateSchoolofChineseAcademyofSciences,Beijing100039,China,KeyLaboratoryofEcosystemNetworkObservationandModeling,InstituteofGeographicSciencesandNaturalResourcesResearch,Chinese5AcademyofSciences,Beijing100101,Chin
4、a,InstituteofWaterResources,Xi’anUniversityofTechnology,Xi’an710048,6China,TempleUniversity,CORE3223N.BroadSt.Philadelphia,PA19140,USAAbstractTheLoessPlateauofChinasuffersserioussoilerosionprimarilyresultingfromirrationallanduses.Soilwaterplaysacritic
5、alroleinfluencingvegetation-restorationprocesses,butvarieswithtemporalandspatialcharacteristics,ofconcerntomanyresearchers.However,fewstudiesconsidertheinfluenceofdeepsoilwaterandvariedweatherpatternsinasemi-aridregion.Fourvegetationtypeschosenforthis
6、studyincludeartificialcaraganashrubland,artificialalfalfagrassland,naturallyrestoredvegetationland(Artemisiacapillaries,Agropyronchistatum,HeteropapusaltaicusNovop,Stipabungeana,StipabrevifloragrisebandLespedezadavurica),andbareland.Soil-watercontenta
7、tthetop400cmdepthwasmonitoredcontinuouslyfrom2004to2007usinganeutronprobe.Waterandwindsoilerosionwereinvestigatedgravimetrically.ResultsshowedthatsoilwatervariedgreatlyduringMaythroughOctoberwithdifferentland-usetypesandannualprecipitations.Soilwaterr
8、eachedalowerlevelinbothartificialvegetationlandsindryyearsbutrechargedwithgreatvariationinnormalyears.Soilwaterintwootherlandstendedtohavesimilarchangeswithlessvariationascomparedwiththeartificialvegetationlands.Soilwaterwasintensivelyconsumed
