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1、HansJournalofSoilScience土壤科学,2014,2,17-22PublishedOnlineJuly2014inHans.http://www.hanspub.org/journal/hjsshttp://dx.doi.org/10.12677/hjss.2014.23003SoilParticleDistributionandRelationshipbetweenSoilSiltConcentrationandPhysicochemicalPropertiesofHedgerowSystemsintheThreeG
2、orgesReservoirAreaJianqiangLi1,HongjiangZhang2,QiboChen11SchoolofEnvironmentalScienceandEngineering,SouthwestForestryUniversity,Kunming2SchoolofSoilandWaterConservation,BeijingForestryUniversity,BeijingEmail:JQ-Lee83125@hotmail.comthrdthReceived:May29,2014;revised:Jun.3,
3、2014;accepted:Jun.16,2014Copyright©2014byauthorsandHansPublishersInc.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CCBY).http://creativecommons.org/licenses/by/4.0/AbstractToachievethesoilparticledistributioncharactersandtherelationshipbetweenp
4、hysicochemicalpropertiesofhedgerowsystemsintheThreeGorgesreservoirarea,soilparticlesizecompositionandphysicochemicalpropertiesofsoilcollectedfromdifferentpositioninhedgerowsystemswithdifferentspeciesweretested,andthecoefficientbetweensoilsiltconcentrationandphysico-chemi
5、calpropertieswereanalyzed.Theresultrevealedthat1)theparticlesizeconcentrationinthehedgerowsystemsdiversifiedsignificantly.Thesoilsandconcentrationinthesteeplandbe-tweenhedgerowswithdifferentspecieswashigherthanthatofsoilwithinhedgerowsstipe,by10.4%,13.7%and9.2%respective
6、ly.However,thesoilsiltconcentrationenrichedwithinhedge-rowsstrip,andthemeanvalueofsoilsiltconcentrationwithdifferentspeciesincreasedby14.3%,19.5%and10.7%respectivelycomparedwiththesoilbetweenhedgerowsteeps.2)Thesiltcon-centrationofsoilinhedgerowsystemswerecorrelatedposit
7、ivelyandhighlysignificantly(P<0.01)withthesoilporosity,watercontent,soilsaturatedwaterconductivity,anti-erodibility,anti-scouribilityandsoilwaterstableaggregatescontent,andcorrelatednegativelywithsoilbulkden-sity.3)Thesiltconcentrationofsoilinhedgerowsystemswerepositivel
8、ycorrelatedwithsoilnu-trients,containingtotalandexchangeablenitrogen,totalandexchangeablephosphorus,tot
