点击查看其他>>风景园艺硕士论文(优秀范文6篇)风景园艺硕士论文范文第三篇：本篇文章目录导航：[][第一章]古树名木保护综述[第二章]古树保护的实验材料与方法[3.1-3.2]试验地咸阳市古槐实验结果与剖析[3.3-3.6]立地环境对槐树生 更多精彩就在： 51免费论文网|www.jxszl.com 
势影响剖析[第五章]古槐树保护的实施技术和参考文献摘要古树名木是历史发展变迁的见证者.陪伴者,既是珍稀的不可代替不可复制的林木种质资源也是活的历史文化遗产,是乡土树种的代表也是本区开发利用名优树种依据,是区域文化和精神文明发展的重要文化要素,是创建和巩固全国文明城市的品牌宣传员,也是咸阳市即将创建国家森林城市的承重构架.更是西咸一体化发展的生态基础,它承载着本区域旅游,文化,生态,经济发展的重要意义.陕西省的古树名木现状并不乐观,大部分树木生存环境堪忧生长欠佳,亟须有效的抢救和保护举措(邓智婷,2014).目前,咸阳市在快速发展中保护古树名木的工作需要更多的关注.结合实际,目前市上对辖区内的古树名木进行了基础的设施保护.统计显示古槐树在古树名木中占有很大的数量和比例.故对咸阳市的古槐树,进行有针对性地调查实验.总结如下几点结论：1.实验地古槐树叶片不可再循环利用营养元素的变异系数大于可再利用营养元素的变异系数.古槐树叶片N.P.K三个大量营养元素含量均低于成年槐树,而古槐树的Ca.Fe的元素含量又大于成年槐树.古槐树叶片营养元素间大部分存在着相关的联系和作用,有增效作用,有拮抗作用,少数元素之间无相关性.2.不同实验地点的古槐树与成年槐树土壤养分含量平均值剖析得出,大部分古槐树土壤养分的含量低于成年槐树土壤养分的含量.古槐树土壤养分间N对速效氮有增效作用,P与速效磷无相关性,K与速效钾之间呈负相关；有机质与大部分元素间呈正相关,说明土壤有机质的提高,有助于提高土壤大多数有效养分的含量；交换性钙与大部分元素间存在拮抗作用.3.将实验地古槐树叶片营养元素含量与土壤养分作简单相关剖析得出,土壤中速效氮.速效磷.速效钾.交换性钙.有效铁.有效锰.有效锌.水溶性硼与叶片中相对应的N.P.K.Ca.Fe.Mn.Zn.B呈正相关；土壤中交换性镁.速效铜与叶片中相对应的Mg.Cu呈负相关.可见叶片中N.P.K.Ca.Fe.Mn.Zn.B的缺乏,与土壤中相应的有效态元素含量较低有直接制约的影响,叶片中Mg.Cu元素的缺乏,并不是因为土壤中缺乏其相应的有效态元素,可能是受到其它因素的影响,如土壤紧实度.土壤通气性等.土壤紧实度高.土壤通气性差会导致古槐树和成年槐树树势下降,叶片营养元素含量下降.立地环境条件的突然恶化对古槐树的影响大于对成年古槐树的影响.4.丝路公园改造古槐树一侧土壤立地环境恶化的情况下,可移动营养元素能够在树体内参与循环和转移到其他需要的器官中的特性,使古槐树两侧叶片的N.P.K.Mg含量保持一定的平衡.这种营养元素在植株体内的再分配运输,为古槐树适应不良环境条件所进行的自我调节.因此,在古槐树东西两侧叶片可移动营养元素保持一定平衡的情况下,不能参与循环的元素的含量高低与古槐树东西两侧树势好坏有重要的相关性.5.生长在立地环境条件较差的土壤环境中的成年槐树,其对环境的适应性,依然能够保持相对良好的树势,但生长势低于立地条件良好的成年槐树.6.以本实验初步确定的古槐树叶片营养元素含量作为参照.将古槐树叶片营养元素的含量与初测的参照标准比较,发现大部分长势衰落的古槐树叶片存在营养元素缺乏的现象,长势良好的古槐树叶片也存在个别营养元素缺乏的现象.7.应用注干施肥法对林科所东西枝进行配方施肥,厂家批量生产的营养液和自行配制的营养液,两种营养液均能在短时间内有效提高古槐树叶片营养元素的含量.施用效果方面,对古槐树进行营养诊断基础上自行配制的营养液配方的施用效果要更佳.关键字：古槐树；相关性；技术举措；政策举措；注干施肥ABSTRACTAncientandfamoustreesarewitnessesandcompanionsofhistoricaldevelopment.Theyarerareandirreplaceableforestgermplasmresourcesandlivehistoricalandculturalheritage.Theyarerepresentativesofnativetreespeciesandthebasisforthedevelopmentandutilizationoffamoustreesintheregion.Theimportantculturalelementsofthedevelopmentofcultureandspiritualcivilizationarethebrandpropagandistswhocreateandconsolidatethenationalcivilizedcities,andtheload-bearingframeworkfortheestablishmentofanationalforestcityinXianyang.ItisalsotheecologicalfoundationfortheintegrateddevelopmentofXi'anandXian.Itcarriestheimportantsignificanceoftourism,culture,ecologyandeconomicdevelopmentintheregion.ThestatusquoofancientandfamoustreesinShaanxiProvinceisnotoptimistic.Mostofthetreeshaveapoorlivingenvironmentandthereisnoneedforeffectiverescueandprotectionmeasures(DengZhiting,2014).Atpresent,XianyangCityneedsmoreattentiontoprotectancientandfamoustreesintherapiddevelopment.Incombinationwiththeactualsituation,thebasicfacilitiesprotectionoftheancientandfamoustreesinthisareaiscurrentlycarriedout.Inthecourseoftheinvestigation,thefollowingconclusionsaresummarized:1.Thevariationcoefficientofnutrientelementsintheleavesofexperimentalancienteucalyptusleavesisgreaterthanthecoefficientofvariationofreusablenutrients.ThecontentofN,PandKintheleavesofancienteucalyptuswaslowerthanthatofadulteucalyptus,whilethecontentofCaandFeinancienteucalyptuswaslargerthanthatofadulteucalyptus.Mostofthenutrientsintheleavesofancienteucalyptushaverelatedlinksandeffects,whichhavesynergisticeffectsandantagonisticeffects,andthereisnocorrelationbetweenfewelements.2.Theaveragenutrientcontentofancienteucalyptusandadulteucalyptusindifferentexperimentalsitesshowedthatthesoilnutrientcontentofmostancienteucalyptustreeswaslowerthanthatofadulteucalyptussoil.ThereisasynergisticeffectbetweenNandavailablenitrogeninthesoilnutrientofancienteucalyptus,Phasnocorrelationwithavailablephosphorus,andKhasanegativecorrelationwithavailablepotassium.Thereisapositivecorrelationbetweenorganicmatterandmostelements,indicatingthatsoilorganicmatterisimproved.Toincreasethecontentofmosteffectivenutrientsinthesoil;thereisanantagonisticeffectbetweenexchangeablecalciumandmostelements.3.Asimplecorrelationanalysisbetweenthenutrientelementcontentoftheleavesofancienteucalyptusandsoilnutrientsshowedthatavailablenitrogen,availablephosphorus,availablepotassium,exchangeablecalcium,availableiron,availablemanganese,effectivezinc,water-solubleboronandleavesinthesoil.ThecorrespondingN,P,K,Ca,Fe,Mn,Zn,Barepositivelycorrelated;theexchangeablemagnesiumandavailablecopperinthesoilarenegativelycorrelatedwiththecorrespondingMgandCuintheleaves.ItcanbeseenthatthelackofN,P,K,Ca,Fe,Mn,ZnandBintheleaveshasadirectconstraintonthelowercontentofthecorrespondingeffectiveelementsinthesoil.ThelackofMgandCuintheleavesisnotbecauseThelackofcorrespondingeffectiveelementsinthesoilmaybeaffectedbyotherfactorssuchassoilcompactionandsoilaeration.Highsoilcompactionandpoorsoilaerationwillleadtoadeclineinthetreepotentialofancienteucalyptusandadulteucalyptus,andadecreaseinnutrientcontentinleaves.Thesuddendeteriorationofsiteenvironmentalconditionshasagreaterimpactonancienteucalyptusthanonadulteucalyptus.4.Inthecaseofdeterioratingthesoilsiteenvironmentonthesideoftheancientbanyantree,themovablenutrientelementscanparticipateinthecirculationandtransfertootherrequiredorgansinthetreebody,sothattheleavesonbothsidesoftheancientbanyantreeareN,P,K.TheMgcontentiskeptatacertainbalance.Theredistributionandtransportofthisnutrientelementintheplantisself-regulatingfortheadjustmentoftheancienteucalyptustopoorenvironmentalconditions.Therefore,inthecasewherethemovablenutrientsoftheleavesonbothsidesoftheancientbanyantreearekeptatacertainbalance,thecontentoftheelementsthatcannotparticipateinthecirculationhasanimportantcorrelationwiththetreepotentialonbothsidesoftheancientbanyantree.5.Adulteucalyptustreesthatgrowinthesoilenvironmentwithpoorenvironmentalconditionscanstillmaintainarelativelygoodtreepotential,butthegrowthpotentialislowerthanthatofadulteucalyptuswithgoodsiteconditions.6.Thenutrientcontentoftheleavesofancienteucalyptuswasdeterminedasareference.Comparingthecontentofnutrientelementsintheleavesofancienteucalyptuswiththeinitialreferencestandard,itwasfoundthatmostofthesenescenteucalyptusleaveshadthelackofnutrientelements,andthewell-developedleavesofancienteucalyptusalsohadthelackofindividualnutrientelements.7.Applicationofdryfertilizationmethodforformulafertilization,nutrientsolutionproducedbythemanufacturerandnutrientsolutionpreparedbythemanufacturer.Bothnutrientsolutionscaneffectivelyimprovethenutrientcontentoftheleavesofancienteucalyptusinashorttime.Intermsofapplicationeffect,theapplicationofthenutrientsolutionformulatedonthebasisofnutritionaldiagnosisofancienteucalyptusisbetter.KEYWORDS:ancienteucalyptus,correlation,technicalmeasures,policymeasures目录第一章文献综述1.1选题的目的.意义1.1.1选题的目的1.1.2选题的意义1.2探究时代1.3探究进展1.3.1国内外古树名木保护现状简述1.3.2国内古树名木保护剖析1.3.3古树名木的概念1.3.4树木生长与根系的关系1.3.5树体的营养诊断1.3.6注干施肥法1.4探究内容1.5探究方法与技术路线1.5.1探究方法1.5.2技术路线第二章实验材料与方法2.1实验材料2.2试验设计与技术路线2.3试验方法2.3.1注干施肥操作方法2.3.2需测指标2.3.3样品采集2.3.4样品处理2.3.5样品测定2.4试验数据的统计剖析第三章试验地咸阳市古槐实验结果与剖析3.1古槐树营养元素含量剖析3.1.1古槐树叶片营养元素含量剖析3.1.2古槐树与成年槐树叶片营养元素含量比较剖析3.1.3古槐树土壤营养元素含量剖析3.1.4古槐树与成年槐树土壤养分含量比较剖析3.2古槐树营养元素相关性剖析3.2.1古槐树叶片营养元素间的相关性3.2.2古槐树土壤大量营养元素间的相关性3.2.3古槐树土壤养分间的相关性3.2.4古槐树叶片.土壤养分间的相关性3.3立地环境对槐树生势影响剖析3.3.1土壤环境条件改变对古槐树生势的影响3.3.2土壤环境条件改变对成年槐树生势的影响3.3.3不同立地环境对成年槐树生势的影响3.4古槐树复壮技术性的举措3.4.1归整可参考的管理养护技术3.4.2规范技术养护举措整理适宜本地区古树名木的养护管理技术举措3.5古槐树复壮政策性的举措3.5.1充分利用社区网格化服务管理资源3.5.2借机宣传3.5.3建立健全古树名木动态保护信息3.5.4积极组织技能培训3.5.5政府高度重视,进一步健全组织机构目标责任管理机制3.5.6政府投入专项资金加多渠道筹集资金,倡导公益组织加入多方合力3.5.7创新保护机制采取灵活的召集举措3.6古槐树配方施肥3.6.1古槐树叶片营养标准的初步确定3.6.2科研所古槐树叶片营养元素含量与初步标准比较剖析3.6.3注干施肥营养液配方及用量3.6.4不同营养液配方注干施肥效果比较剖析第四章结论4.1古槐树营养元素含量剖析探讨4.2古槐树营养元素相关性剖析探讨4.3立地环境与古槐树.成年槐树树势间的关系剖析探讨4.4应用注干施肥法对古槐树进行配方施肥的效果剖析探讨4.5探究的不足与展望4.5.1探究的不足4.5.2探究的展望参考文献
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