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时间:2020-04-21
《浙江泰顺米槠天然林特征.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、浙江农林大学学报,2014,31(3):431—436JournalofZhejiangA&FUniversitydoi:10.11833~.issn.2095-0756.2014.03.016浙江泰顺米槠天然林特征戎建涛,应苗苗,梁文杰,权伟,康华靖,刁军(1.温州科技职业学院碳汇研究院,浙江温州325000;2.国家林业局华东林业调查规划设计院,浙江杭州310019)摘要:以浙江省泰顺县洋溪林场米槠Castanopsiscarlesii天然林为研究对象,对其群落学特征和测树学特征进行调查分析。结果表明:乔木层由69种树种组成,米槠和木荷Schimasuperba占优势,
2、重要值分别为65.o4%和49.14%;乔木层可分为第1亚层、第Ⅱ亚层和第Ⅲ亚层;乔木层物种丰富度S,多样性指数,均匀度E和生态优势度分别为69,4.63,0.76和0.093;各亚层物种丰富度Js为33~38,多样性指数为4.36~4.85,均匀度E为0.86~0.93,生态优势度DE为0.032-0.071;林分平均胸径、平均树高、单位面积株数、单位面积蓄积分别为20.77em,16.67m,743株·hm,193.80m·hm。林分直径分布呈倒J型。研究结果对中亚热带天然阔叶米槠林可持续经营技术有借鉴作用。图1表3参17关键词:森林生态学;米槠天然林;林分特征;泰顺县
3、中图分类号:$714.7文献标志码:A文章编号:2095—0756(2014)03—0431—06.CharacteristicsofnaturalforestofCastanopsiscarlesiinTaishunCounty,ZhejiangProvinceRONGJiantao,YINGMiaomiao,LIANGWenjie,QUANWei,KANGHuajing,DIAOJun(1.InstituteofCarbonSequestration,WenzhouVocationalCollegeofScienceandTechnology,Wenzhou325000
4、,Zhejiang,China;2.EastChinaForestryInventoryandPlanningInstitute,StateForestryAdministration,Hangzhou310019,Zhejiang,China)Abstract:ThecommunitycharacteristicsandmeasurementfeaturesofnaturalforestofCastanopsiscarlesiiinTaishunCounty,ZhejiangProvincewerestudiedinthisresearch.Theresultsindic
5、atedthatthetreelayercon—sistedof69treespecies,withCastanopsiscarlesiiandSchimasuperbaastwodominantspeciesandtheimpor—tancevaluesofthesetwospeciesbeing65.04percentand49.14percentrespectively.Therewerethreesub—layersinthetreelayer,namely,sub—layerI,sub—layer11andsub.1ayerm.Thespeciesrichness
6、(5),Shan—non—Wienerindex(),evenness(E)andecologicaldominance(DE)ofthetreelayerwere69,4.63,0.76and0.093respectively.Thespeciesrichness(S)ofthesub—layersrangedbetween33—38,Shannon—Wienerin-dex(,sw)between4.36—4.85,evenness()between0.86—0.93andecologicaldominance()between0.032—0.071.Theaverag
7、eDBHandheight,thenumberoftreesperunitarea,andunitstockvolumeoftheforeststandwere20.77cm,16.67m,743tree·hm之and193.80m·hmrespectively.ItsdistributionofDBHwasshowedastheinverseJtype.Theresultsprovidedreferencesforthesustainablemanagementofthenaturalbroad—leavedCa
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