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1、几种处理方式对皂荚直播造林地微环境和出苗率的影响林业科学研究 2009,22(6):851~854ForestResearch 文章编号:1001-1498(2009)06-0851-04几种处理方式对皂荚直播造林地微环境和出苗率的影响李庆梅1,刘 艳2,侯龙鱼2,侯 栋2,陈怀梁2,马风云2,宋玉民3(1.中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京 100091;2.山东农业大学林学院,山东泰安 271018;3.山东省林业科学研究院,山东济南 251000)关键词:覆盖方式;皂荚;出苗率;直播造林中图分类号:S723.1文
2、献标识码:A收稿日期:2008-09-02基金项目:山东省省林业局项目“宜林瘠薄山地直播造林技术与示范”作者简介:李庆梅(1964—),女,内蒙古赤峰人,副研究员,从事林木种苗研究工作。E-mai:lliqm@ca.fac.cnEffectsofDifferentTreatmentsonSoilMicroenvironmentandGerminationRateofGleditsiasinensisAfforestedbyDirectSeedingLIQing-mei1,LIUYan2,HOULong-yu2,HOUDong2,CHENHuai-li
3、ang2,MAFeng-yun2,SONGYu-min3(1.ResearchInstituteofForestry,CAF;KeyLaboratoryofTreeBreedingandCultivation,StateForestryAdministration,Beijing 100091,China;2.ForestryCollegeofShandongAgriculturalUniversity,Tai’an 271018,Shandong,China;3.ShandongAcademyofForestry,Jinan 251000,Shan
4、dong,China.)Abstract:Effectsofdifferenttreatments,includingmulchingfilm,grasscover,blockcover,waterretainingagen,trootingpowderandopenfield(control),ondirectseedingofGleditsiasinensisLam.werestudied.Theresultsshowedthatmulchingfilmincreaseddailyaveragetemperatureandtheeffectord
5、erwassunlight>after-rain>cloud.Thesoiltemperatureofgrasscoverandblockcoverwerelowerthanthatofopenfield.After6-daysunligh,tsoilmoisturecontentofmulchingfilm,grasscoverandwaterretainingagentwerehigherthanthatofopenfield,withincreasedby24.4,21.4,2.5and1.0g·kg-1,respectively.30days
6、afterseeding,thegerminationrateswiththemethodsofmulchingfilm,rootingpowderblockcover,waterretainingagentwerehigherthanthatofthecontro,lwithincreasesof12.11%,4.20%,3.10%,and2.10%,respectivey.Whilethegerminationrateofgrasscoveringwaslowerthanthatofthecontro.lKeywords:covering;Gle
7、ditsiasinensis;germinationrate;directseedingafforestation直播造林在石灰岩瘠薄山地植被恢复中具有重要作用[1],直播造林适合大面积无水源的山地造林[2]。在荒山植苗造林受到限制时应采用直播造林[3-4],直播造林比植苗造林的成活率高,且省时、省工、省钱。杨喜田等[5]发现经过土壤改良并利用直播造林技术对退化土地的植被恢复具有较好的作用。臭椿(Ailanthusaltissima(Mil.l)Swingle)、柠条(CaraganakorshinskiiKom.)、山杏(Prunusarmenia
8、-cavar.ansuMaxim.)等树种的直播造林效果很好,也有人对酸枣(Ziziphusjujuba.v
