庫(kù)布齊沙漠沙柳扦插技術(shù)研究.pdf

1、庫(kù)布齊沙漠沙柳扦插技術(shù)研究TheStudyofSalixpsammophilaCuttingTechnologyinKubuqiDesert申請(qǐng)人：徐麗學(xué)位名稱:農(nóng)業(yè)推廣碩士領(lǐng)域：農(nóng)業(yè)資源利用指導(dǎo)教師：高永教授論文提交日期：二○一三年六月分類號(hào)S725UDC630學(xué)校代碼10129學(xué)號(hào)2011204075TheStudyofSalixpsammophilaCuttingTechnologyinKubuqiDesertAbstractSa

2、lixistheshrubtreespeciesoflargerplantingareainKubuqidesertit’sgrowquicklyresistancetosburiedit’sgoodtreetokeepwatersoilwindbreaksfixation.InthispaperflowofsdunesasatestbedinthenthofQixinghusalixcuttingaffestationexperime

3、ntsintypicalpartsstudythefactsofsalixdifferentcuttinglengthaffestationdensitysoakingtimesoakingmethodexposedheightdifferentnumberofeachpointanalysisthechangeruleofsurvivalratepreservingrategrowthcondition.Themainconclusi

4、onisasfollows:1Thesalixofcuttingoneyear(1)Thesurvivalrateofcuttinglengthfrom110cmto150cmis:130cm150cm140cm120cm110cm.thesurvivalrateis96.48%whenthecuttinglengthis130cm.Thederheightis:150cm140cm130cm120cm110cmthemaximumis

5、138.33cmwhenthecuttinglengthis150cm.(2)Thebestcuttingspecificationis1m1mthesurvivalrateis92.31%theplantheightofupperpartofthewindwardslopeis122.43cm.(3)Underthedifferentsoakingtimetheoptimalis5dthederofenrichmentdegreeis

6、:5d7d3d0dthebestsurvivalrateis95.62%thebestheightis150.79cmthebestdiameterofnewshootis9.52mm.(4)Theverticalsoakinginupperpartofthewindwardslopethesurvivalrateisbetterthancontrolgroupsurvivalrateofthedifferentslopepositio

7、nis:verticalsoakinghizontalsoakingcontrolgroupthebestsurvivalrateis93.54%inthedleofslope.2Thesalixofcuttingtwoyears(1)Thecuttinglengthfrom80cmto110cmrepresentincreasingtrendinthewindwardslope.Whenthecuttinglengthis110cmt

8、hebestpreservationrateis87.92%inthedleofthewindwardthebestplantheightis174.68cmthebestcrownwidthis126.54cm118.65cm.(2)Intheupperpartofthewindwardslopethebestpreservationrateis82.92%whenthecuttingexposedheightis15cm.Thebe