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《鲁中片麻岩低山丘陵针阔混交林蓄水保土效益研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第28卷第2期水土保持学报Vo1.28No.22014年4月Journa1ofSoilandWaterConservationApr.,2014鲁中片麻岩低山丘陵针阔混交林蓄水保土效益研究杨菲,杨吉华,艾钊,张国庆,魏晓明,王荣荣(山东农业大学林学院,山东省土壤侵蚀与生态修复重点实验室,山东泰安271018)摘要:以山东省莱芜市雪野镇通天河小流域2003年3月营造的6种针阔混交林为研究对象,2013年10月采用样收获法测定枯落物蓄积量和灌草生物量,烘干法和环刀浸水法测定土壤物理性状和土壤水文效应,单环定量加水法测定土壤入渗速率,标尺法测
2、定土壤侵蚀量,研究不同针阔混交林的蓄水保土效益。结果表明:(1)林下灌草盖度与生物量随林分郁闭度的增加而减少,而枯落物层蓄积量随林分郁闭度的增加而增加。(2)黑松刺槐混交林和侧柏刺槐混交林的土壤物理性状与土壤养分改良效果最好。(3)土壤蓄水性能以黑松刺槐混交林、侧柏刺槐混交林最好,其土壤渗透性能也较好。(4)减蚀量以黑松刺槐混交林、侧柏刺槐混交林最大。6种针阔混交林的蓄水保土效益以黑松刺槐混交林、侧柏刺槐混交林最大,黑松五角枫混交林、侧柏五角枫混交林、黑松麻栎混交林次之,侧柏麻栎混交林较差。关键词:鲁中低山丘陵;片麻岩;针阔混交林;蓄水
3、保土效益中图分类号:$714.7文献标识码:A文章编号:1009—2242(2014)02—0051—06StudyontheFunctionofSoilandWaterConservationofDifferentTheOninLowMountainsandHillsofCentralShandongGneissRegionYANGFei,YANGJi—hua,AIZhao,ZHANGGuo—qing,WEIXiao—ming,WANGRong—rong(ShandongProvincialKeyLaboratoryofSoilEro
4、sionandEcologicalRestoration,CollegeofForestry,ShandongAgriculturalUniversity,Tai’an,Shandong271018)Abstract:TheobjectivesweretodeterminethefunctionofsoilandwaterconservationinsmallwatershedofTongtianhelocatedinXueyetown,Laiwucity,Shandongprovince,andusedthe6differentthe
5、ropence—drymionswhichplantedinMarchof2003astheresearchobject,andtheforestsbuiltonthescaleripple.InOctober2013,samp1eharvestmethodwasusedtomeasurethestandvolumeoflitterandbiomassofshrubandgrass,dryingmethodandcuttingringwaterimmersionmethodwasusedtomeasuresoilphysicalprop
6、er—tiesandwaterstorageperformance,monocyclicringquantitativewaterwasusedtomeasuresoilinfiltrationrateandscaleplatewasusedtomeasuresoilerosionamount.Theresultsshowedthat:(1)Thebiomassofshrubandgrassdecreasedwiththeincreasingofforestcanopyclosure.Whilethestandvolumeoflitte
7、rin—creasedwiththeincreasingofforestcanopyclosure.(2)Pinusthunbergii+RobiniapseudoacaciaandPlaty—cZ口ds0rientnli5+Robiniapseudoacaciawerebetterinsoilphysicalpropertiesandsoilnutrients.(3)Inthesoilwaterstoragecapacityandsoilinfiltrationrate,Pinusthunbergii+Robiniapseudoaca
8、ciaandPlatycla—d“sorlentalis+Robiniapse乱doacaciashowedbetter.(4)Comparedwiththecontrol,thesoilerosiona—
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