河北北部森林鼠害的發(fā)生及防治的初步研究.pdf

1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文河北北部森林鼠害的發(fā)生及防治的初步研究姓名：趙恒剛申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：森林保護(hù)學(xué)指導(dǎo)教師：黃大莊崔建州20040612ThePreliminaryStudiesouOccurrenceandControloftheForestRatHarminNorthemofHebeiPostgruduate：ZHAOHenggangSpecialty：ForestprotectionSupervisor：HUANGDaz

2、huangCUIJianzhouHOUJianhuaAbstraetInthispaperthepreliminarystudiesonoccurrencecircumstanceandpreventionandcuretechniqueofforestratharminSaihanbaMechanisedTreefarmandYudaokouRanchofnorthemofHebeiIncludecategoryoftheforest

3、ratharmandforestendangertoobservetheCitellusdauricus’ecologycharacteristicoftheadvantagepopulousintheforesttoresearchthemethodoftheageidentificationthenonpoisonousand10wpoisionsmokewasdevelopementedindoor，andintheyear200

4、2，conUolexperimentoncitellusdauricuswasmadeintheYudaokouRanchTheeffectofdifferentplantsalcoholonactivityofC打Plusdauicus’sAcetvlchoIinesterasewhichisanewwayforchoosingoftheplantkilledrat，andbringingupsomesuggestionforthec

5、ontrolofCf肼usdauricusandforestratharmTheresultisshowedasbelow：theoccurrencecircumstanceontheforestratharm，(1)Betweenyear200land2003，forestendangerisincreasingandharmdegreeisincreasing，themostforestharmedismiddleandyoungP

6、inussylvestrisandLarixgmeliniiTheharmfulpartsliesinro眥；erestbudthetopofbranchTheaverageinjurypersentbetween50and813，harmfulareaismorethanl50hm2(2)ForestratisinvestigatedwithclipsTreekindsinvestigatedincludePinussvlvestri

7、sandLar扛gmelinii，Atotalof195specimensisobtained，includeCitellusdauricusEutamiassibiricus，CricetulusbarabensisRattusnorvegicus，脅smusculusLiApodemusspeciosus，Clethrionomysrufocanus4llactagasibirica，Myospalaxaspalax，Citellu

8、sdauricusisadvantagekindarnongthem(3)citellusdauricusinnorthforestofHebeiiswakeupfromhibemationontheendofMarch，whentheairtemperatureismorethan5。COrthetimeofoccurrencewilldelayedbylowtemperature，Whenlowingtemperatureinthe

9、middleSeptemberTheCitellusdauricusbeginningtohibernatewhichismoreearlierthananyotherplacesThefoodoftheCitellusdauricusmainisplant，962percentofthetotaldealoffood(4)20indexof42Citellusdauricusareanalyzedwiththeprincipalcom

10、ponentanalysis(includebodylong，taillongandsortofindexof18skulls)the8indexofbodylong，greatestlongofskull，basallengthofskull，palatallong，skullhigh，backskullhigh，backskullwidth，cheekwidtharechosenSynthesizeclusteranalysiswa

11、sappliedwith42samplesof8indexbytypeaveragemethodTl鹼42samplesaredividedinto5agesetsandthewearawaydegreeoftopmolarteethiscompared，theresultsoftwokindswaysaresameShowthatnatureageofCitellusdauricusismorethan5yearsinnorthern

12、ofHebeiThemethodoftheCitellusdauricusageassessmentisbasisoftheagestructurestudyPreventionandcureontheforestratharm(1)8kindsofnonpoisonousand10wpoisonsmokeareexperimentedonCitellusdauricuspreventionandcureinthefieldsTheav