资源描述：
《滇中三种人工林群落控制土壤侵蚀和改良土壤效应》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第21卷第2期水土保持通报Vol.21No.22001年4月BulletinofSoilandWaterConservationApr.,2001滇中三种人工林群落控制土壤侵蚀和改良土壤效应122433王震洪,段昌群,文传浩,王宏镔,张世彪,起联春(1.西南林学院资源学院,云南昆明650224;2.云南大学环境科学系,云南昆明650091;3.云南省牟定县水土保持委员会办公室,云南牟定675500;4.昆明理工大学,云南昆明650091)摘要:通过对人工云南松群落、桉树—黑荆混交林群落、直干桉群落及无林地对照地表径流、土壤侵蚀的观测及林地土壤几个主要理化指标的分析表明
2、,地带性植物种云南松形成的人工林群落及桉—黑荆混交林具有好的控制径流和土壤侵蚀的能力,对土壤理化性质的改善也有较明显的作用,值得在生产中推广。在此基础上,论述了不同人工林群落土壤理化性质的改善与土壤侵蚀的控制关系。关键词:人工林群落;土壤侵蚀;土壤改良文献标识码:A文章编号:1000—288X(2001)02—0023—05中图分类号:S715.3SoilErosionandSoilImprovementofThreeArtificialForestCommunitiesinMiddleYunnanProvince123WANGZhen-hong,DUANChang-
3、qun,WENChuan-hao,433WANGHong-bin,ZHANGShi-biao,QIANLian-chun(1.ResourcesAcademy,SouthwestForestryCollege,Kunming650224,PRC;2.EnvironmentScienceDepartment,YunnanUniversity,Kunming650224,PRC;3.OfficeofSoilandWaterConservation,MudingCounty675500,YunnanProvince,PRC;4.ScienceandTechnologyUni
4、versity,Kunming650091,PRC)Abstract:Theeffectsofsoilerosioncontrolandsoilimprovementwereresearchedthroughtheobservationofrunoffandsoilerosion,andthroughtheanalysisofsomeindexesofsoilpropertyintheplotsofthreekindsofarti-ficialforest,Pinusyunnanesiscommunity,EucalyptusmaidensiiandmixedAcac
5、iamearsii-Eucalyptusmaid-ensiicommunityandthenon-forestcontrastfromMarch1,1998toMarch1,1999.TheresultsindicatedthatmixedE.maidensii—A.mersiicommunity,P.yunnanensiswereabletoefficientlycontrolsurfacerunoffandsoilerosionandtherewerehighpercentagesofSi/V,stable-wateraggregate,non-capillary
6、porosityinthesoilofthesetwoartificialforests.Meanwhile,lesslossofmainnutrientelementshappened,whichwasinfavorofthefertilitybetterimprovedandmoreorganicmatter,availableN,P,KwereaccumulatedinsoilofmixedE.maidensii—A.mearsiicommunityandP.yunnanensiscommunity.Tothecontrary,boththesoilerosio
7、ncontrolandtheim-provementofsoilwerepoorforthecontrastandE.maidensiicommunity.So,mixedE.maidensii—A.meamsucommunities,P.yunnanensiscommunityshouldberecommendedforafforestationintheharnessofsoilandwatererosion.Keywords:artificialforestcommunities;soilerosion;soilimprovement滇中是云南
