簡(jiǎn)介：分類號(hào)單位代碼10389密級(jí)學(xué)號(hào)3150422007碩士專業(yè)學(xué)位論文閩楠主要病害病原鑒定及其生物學(xué)特閩楠主要病害病原鑒定及其生物學(xué)特性測(cè)定和防治藥劑篩選性測(cè)定和防治藥劑篩選學(xué)位類別林業(yè)碩士專業(yè)學(xué)位專業(yè)領(lǐng)域研究方向森林保護(hù)學(xué)學(xué)生姓名金亞杰指導(dǎo)教師郭文碩教授宋漳教授完成時(shí)間二○一七年四月IDENTIFICATION，ACTERISTICSFUNGICIDESCREENINGOFPATHOGENSONPHOEBEBOURNEIBYJINYAJIESUPERVISEDBYPROFGUOWENSHUOSONGZHANGATHESISSUBMITTEDTOFUJIANAGRICULTUREFESTRYUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTSFPROFESSIONALMASTER’SDEGREEINFESTRYCOLLEGEOFFESTRYFUJIANAGRICULTUREFESTRYUNIVERSITYFUJIANPRCHINACOMPLETIONDATE201704COMMENCEMENTDATE201704

簡(jiǎn)介：南開大學(xué)碩士學(xué)位論文膜法實(shí)現(xiàn)味精行業(yè)清潔生產(chǎn)的膜吸附污染及其防治研究姓名李秀芬申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境科學(xué)指導(dǎo)教師傅學(xué)起20021101靜電屏蔽作用使濾餅中溶質(zhì)分子之間的靜電排斥力消弱或消失，濾餅的孔隙越小，吸附阻力越大，反之阻力較小。第六，本論文提出的相對(duì)吸附阻力概念可用來比較谷氨酸菌和可溶蛋白對(duì)聚砜膜的污染能力。相同實(shí)驗(yàn)條件下，蛋白質(zhì)分予的相對(duì)吸附阻力比谷氨酸菌大得多，聚砜膜超濾谷氨酸發(fā)酵液預(yù)除菌體過程中的長(zhǎng)期不可逆通量降低主要是蛋白質(zhì)分子污染所致，設(shè)計(jì)料液預(yù)處理及污染膜的清洗方案應(yīng)以此為依據(jù)。第七，谷氨酸菌對(duì)絮凝的蛋白質(zhì)分子有預(yù)過濾作用，這一觀點(diǎn)可從SEM照片直接得到證實(shí)，適當(dāng)選擇溶液化學(xué)條件，可以有效利用發(fā)酵液中的菌體來降低蛋白質(zhì)分子對(duì)膜的吸附污染，進(jìn)而降低吸附阻力，提高滲透通量。第八，膜污染層結(jié)構(gòu)與清洗條件對(duì)清洗效果的影響同樣重要。溶液化學(xué)不僅影響溶質(zhì)一膜間的相互作用，同樣影響溶質(zhì)分子之間的相互作用，進(jìn)而影響濾餅的孔隙度，并對(duì)清洗效果產(chǎn)生直接影響。最后，建立了該體系的清洗動(dòng)力學(xué)方程，利用該方程可對(duì)給定清洗條件、清洗時(shí)間的清洗效率進(jìn)行直接估算，同時(shí)提出了聯(lián)合清洗技術(shù)，其中NAOHSDS的清洗能力最強(qiáng)，但清洗速度較慢，NAOHH202的清洗能力最差，清洗速度卻最快，NAOHCTAB的清洗能力和速度居中。關(guān)鍵詞超濾，聚砜膜，膜污染，吸附，清洗，溶液化學(xué)，谷氨酸菌，蛋白質(zhì)清潔生產(chǎn)

簡(jiǎn)介：中國(guó)海洋大學(xué)碩士學(xué)位論文黃河三角洲海岸侵蝕災(zāi)害及其對(duì)策研究姓名柯昶申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師鄭西來吳桑云20041226STUDYONTHEEROSIONANDITSCOUNTERMEASURESOFTHEMODERNYELLOWRIVERDELTACOASTABSTRACTTHCMODEMYELLOWRIVETDELTAISLOCATEDFROMTAOERRIVERTOZHIMAIGOUONTHESOUTHWESTSIDEOFBOHAISEAANDANEWBORNAREAWITHASILTINGUPRATEOF20～25KM2／ASINCEITSSEARTMNINGTOWARDSBOHAISEAIN1855．BECAUSEOFITSSPECIALCHARACTER,THETERMINALCHANNELOFTHEYELLOWRIVERCHANGEDFREQUENTLY,WHICHBROUGHTTHISAREABOTHLARGESCALESILTINGUPANDEROSION．BUTBEFORE1990STHEMAINEVOLUTIONTRENDOFTHEYELLOWRIVERDELTAWASSILTINGUPANDITWASINTHESECONDHALFOF1990STHATTHEAREADCCREASEDBY2．6KIN2．THENTHEWHOLEDELTABEGANTOBEEROSION．THETIMEINCREASINGCOASTALEROSIONHASNOWSCLIOUSLYHARMBOTLITHEEVOLUTIONANDECONOMICENVIRONMENTOFTHEYELLOWRIVERDELTA，F(xiàn)ROMWHICHTHESHENGLIOILFIELDANDNATIONALECOLOGICALMODEMREGIONHASSUFFEREDALOT．BASEDONSEVERALRELEVANTPROJECTS，THISPAPERSYSTEMICALLYANALYZEDTHEINFLUENTIALELEMENTOFTHECOSTALEROSIONINYELLOWRIVERDELTAANDFOUNDTHATTHESEDIMENTOLOL百EALDYNAMICSCHARACTER,CHANGESOFTHERIVERCOURSCSANDWATERSANDCONTENTS，ANDRELATIVESEALEVELRISEARETHEMAINREASONFORTHECOSTALEROSION．ACCORDINGTOTHECOMPREHENSIVEANALYSISOFTHEABOVEELEMENTS，THEREISANONREVERSETRENDOFEROSIONINTHEYELLOWRIVERDELTACOAST．ASFORTHECOUNTERMEASURES．FIRSTLYTHEWATERANDSANDSOURCESSHOULDBEREASONABLYALLOCATEDANDMANAGED．MEANWHILE，CONSIDERINGCOASTALEROSION’SREGIONALANDIMBALANCECHARACTERS，SPECIALMEASL】REMENTSSHOULDBETAKENACCORDINGTHEREGIONALCHARACTERSOFYELLOWRIVERDELTA．HIIGHSTANDARDCOASTALPROTECTIONSTRUCTURESSHOULDBEBUIITNEARTHEPALEOYELLOWRIVERMOUTHAREAANDBREAKWATERSSHOULDBECONSWACTEDWHERETHEREISAHI【GHCONCENTRATIONOFOILWELLS．WHEREASINTHENEWLYYELLOWRIVERMOUTHAREA，THEMAINPURPOSEOFTHEMEASUREMENTSSHOULDBEENHANCETHESILTATIONTOMAINTAINTHEBEACH．WHEFLITCOMESTOTHEAREABETWEENTHEABORETWO．BREAKWATERSSHOULDBEREINFORCEDASWELLASPROTECTED．KEYWORDSMODEMYELLOWRIVERDELTA；COASTALEROSION；EROSIONHAZARD；COUNTERMEASURESII

簡(jiǎn)介：貴州大學(xué)2009屆碩士論文貴州煤礦區(qū)酸性排水的污染特征及其化學(xué)防治方法的研究1目錄摘要3ABSTRACT5第一章前言711國(guó)內(nèi)外治理煤礦酸性水概況、水平和發(fā)展趨勢(shì)712煤礦酸性水形成的原因913貴州喀斯特地區(qū)煤礦酸性水的分布1014貴州喀斯特地區(qū)煤礦酸性水的分類1015粉煤灰在廢水處理中應(yīng)用11151粉煤灰的形成與分類11152粉煤灰的物理性質(zhì)12153粉煤灰的化學(xué)性質(zhì)與組成121531粉煤灰的化學(xué)組成121532粉煤灰的化學(xué)性質(zhì)13154粉煤灰的活性13155粉煤灰在環(huán)境工程中的應(yīng)用141551粉煤灰在煤礦酸性水處理中的應(yīng)用141552利用粉煤灰處理煤礦酸性水的機(jī)理141553可能影響粉煤灰處理煤礦酸性水效果的因素161554利用粉煤灰處理廢水的應(yīng)用途徑17第二章課題的研究意義、內(nèi)容及技術(shù)路線1821研究意義1822研究目標(biāo)1923研究?jī)?nèi)容1924主要解決的問題2025研究方法2026可行性分析20第三章貴州煤礦區(qū)酸性水污染特征2131研究區(qū)選擇2132煤礦酸性水環(huán)境現(xiàn)狀監(jiān)測(cè)及評(píng)價(jià)21321煤礦酸性水水質(zhì)監(jiān)測(cè)21322煤礦酸性水水質(zhì)評(píng)價(jià)233221普安煤礦酸性水水質(zhì)評(píng)價(jià)233222興仁煤礦酸性水水質(zhì)評(píng)價(jià)243223織金煤礦酸性水水質(zhì)評(píng)價(jià)253224麥坪煤礦酸性水水質(zhì)評(píng)價(jià)2633小結(jié)27第四章石灰乳、石灰石中和處理酸性水的研究2841石灰乳中和處理煤礦酸性水的研究28411原理28412試驗(yàn)材料與方法28413中和反應(yīng)特性曲線試驗(yàn)29414FE2、PB2、MN2、CU2等離子沉淀31貴州大學(xué)2009屆碩士論文貴州煤礦區(qū)酸性排水的污染特征及其化學(xué)防治方法的研究3摘摘摘摘要要要要本文以貴州省織金縣珠藏鎮(zhèn)桂花村坡角某煤礦酸性水、花溪麥坪某煤礦酸性水、興仁某煤礦酸性水和普安樓下某煤礦酸性水為研究對(duì)象，采用實(shí)地調(diào)察、試驗(yàn)分析的方法，對(duì)煤礦酸性水的PH、FE2、SS、重金屬含量進(jìn)行分析并用石灰石、石灰乳、粉煤灰三種材料對(duì)煤礦酸性水進(jìn)行處理，得出以下主要結(jié)論1．煤礦酸性水的形成主要原因是由于和煤伴生的硫鐵礦是在強(qiáng)還原條件下生成的，煤層開采后處于氧化條件，硫鐵礦和礦井水、空氣中的氧接觸后，經(jīng)過一系列的氧化、水解等反應(yīng)，生成硫酸和氫氧化鐵等，使水呈酸性。在調(diào)查的四個(gè)煤礦酸性水中的PH、SS、PB、FE、MN都分別超標(biāo)。2．用不同量的石灰乳中處理同一定量煤礦酸性水時(shí)，隨著石灰乳量的增加，PH值不斷的升高，但PH值不會(huì)超過9，同時(shí)PH在13時(shí)變化不大，這是由于煤礦酸性水中FE3被沉淀為FEOH3時(shí),大量消耗OH,從而在一定范圍內(nèi),使廢水中OH保持恒定。而在一定量的酸性水中，一次性加入定量石灰乳，在相同反應(yīng)強(qiáng)度下，測(cè)定不同反應(yīng)時(shí)間內(nèi)的PH值的變化時(shí)發(fā)現(xiàn)在處理含鐵量較低的煤礦酸性水時(shí)PH值上升很快一分鐘就可以到達(dá)7左右；而處理含鐵量較高的煤礦酸性水時(shí)PH值上升較慢，需二十分鐘才可以到達(dá)7左右。同時(shí)發(fā)現(xiàn)經(jīng)石灰乳處理后的煤礦酸性水中的FE2、CU2、MN2、PB2的含量也大量減小，這是由于石灰乳處理煤礦酸性水時(shí)會(huì)生成膠體，這些膠體會(huì)吸附重金屬離子。但這些膠體比重較小，經(jīng)攪拌后，又使處理后的酸性水濁度升高，含重金屬離子仍然超標(biāo)。3．用石灰石處理同一定量的煤礦酸性水時(shí)，石灰石的用量要大于石灰乳的12倍，而且反應(yīng)的速度較慢、處理的時(shí)間較長(zhǎng)。取出石灰石反應(yīng)后的水樣，靜止觀察其沉淀物的分離時(shí)間，發(fā)現(xiàn)經(jīng)石灰石處理后的出水懸浮物不能形成礬花，成渾濁狀態(tài)，極難快速沉淀，只有放置L0小時(shí)左右，分層才較為清晰。同時(shí)，也發(fā)現(xiàn)處理后的煤礦酸性水中的FE2、CU2、MN2、PB2的含量也減小，但沒有石灰乳的作用明顯。4．粉煤灰組分主要是CAO、MGO、FE2O3、NA2O、K2O等，它們遇水易于溶解生成氫氧化物，進(jìn)而離解產(chǎn)生OH，用以中和酸性水中H十。由于粉煤灰除了含有一定量的碳、氧以外，還具有豐富的孔隙，使其比表面積比較大，因而吸附能力強(qiáng)，同時(shí)粉煤灰中含有OSIO鍵以及梭基、羥基等含氧的活性官能團(tuán)，

簡(jiǎn)介：分類號(hào)X必密級(jí)Y856586單位代碼10618學(xué)號(hào)03270104重慶交通大學(xué)碩士學(xué)位論文論文題目自然災(zāi)害鏈?zhǔn)叫?yīng)結(jié)構(gòu)理論及其應(yīng)攫研究STUDYORTHESTRUCTURALTHEORYOFNATURALDISASTERCHAINEFFECTANDITSAPPLICATIONS研究生姓名；范海翠導(dǎo)師姓名、職稱肖盛燮教授申譴學(xué)橇綴剃；專業(yè)名稱；論文答辮日期學(xué)位授予單位答辯委員會(huì)妻纛監(jiān)L叢拯評(píng)閱人趕L馳熬邀壟受幼萬年弓月餾曰中英文摘要Ⅱ本文研究從基本概念出發(fā)，由定性到半定量構(gòu)建了系統(tǒng)的自然災(zāi)害鏈?zhǔn)浇Y(jié)構(gòu)理論框架基礎(chǔ)，為其應(yīng)用拓展了廣闊的空間。關(guān)鍵詞自然災(zāi)害鏈?zhǔn)叫?yīng)結(jié)構(gòu)理論；自然災(zāi)害鏈?zhǔn)叫?yīng)；災(zāi)害鏈?zhǔn)筋愋?；結(jié)構(gòu)關(guān)系；數(shù)學(xué)關(guān)系模型；鏈?zhǔn)疥P(guān)系環(huán)；一般災(zāi)害鏈；

簡(jiǎn)介：華中師范大學(xué)碩士學(xué)位論文湖北省自然災(zāi)害防治及生態(tài)可持續(xù)發(fā)展姓名彭紅霞申請(qǐng)學(xué)位級(jí)別碩士專業(yè)自然地理指導(dǎo)教師鄧先瑞19990501PREVENTLONANDCUREOTNATURAIDLSASTERANDECOLOGYSUSTAINABLEDEVELOOMENTLNHULOETDROVLNCEPENGHONGXIACENTRALCHINANORMALUNIVERSITY430079ABSTRACTNATURALDISASTERISFORMIDABLEENEMYOFHUMANCCURSEWHICHHUMANCHANGETHELMPERSONALITYWORLDISNAMELYTHATHUMANISAGAINSTWITHNATURALDISASTERHUBELPROVMCEICOATESSUBTROPICSEASONWINDZONE，PHYSTOGNOMYTYPEISCOMPLEXANDMULTIPLE，SPACE，TIMEDIFFERENEEOFPRECIPITATIONANDTEMPERATUREISOBVIOUS，SOITSPAWNSOFTENSERIOUSDROUGHT，F(xiàn)LOOD，COAST，STREAMOFMUDANDSTONEANDSOONNATURALDISASTERTHATHAPPENSFREQUENTLYINHUBEIPROVINCEBRINGSHEAVYTRIBULATIONTOTHEMASSINHISTORYNOWADAYS，THOUGHSCIENCEANDTECHNOLOGYISVERYDEVELOPED，ITRESTRICTSDEVELOPMENTOFSOCIETY，ECONOMYANDECOLOGYTHEREFORE，ITISVERYIMPORTANTTOPROBEINTOCOUNTERMEASUREOFPREVENTIONANDCUREOFNATURALDISASTERINHUBEIPROVINCEBASEDONTHEFORMERPEOPLE’SSTUDYAPPLYINGTHETHEORYOFSYSTEMSCIENCE，EARTHSCIENCE，DISASTERSCIENCEANDSUSTAINABLEDEVELOPMENT，ADOPTINGTHEQUALITATIVEANDQUANTITATIVEMETHOD，ANALYTICALANDSYNTHETICALMETHOD，TYPEANDCOMMONMETHOD。THISPAPERSTUDIESONCHARACTERS，SPACETIMEDISTRIBUTING，F(xiàn)ORMINGREASONSMEASURESOFPREVENTIONANDCUREOFNATURALDISASTERINHUBEIPROVINCETHISPAPERCONSISTSOFSIXPARTSTHEFIRSTPARTPREFACETHISPARTSTATESBRIEFLYCONCEOTANDRESEARCHINGCONDITIONOFNATURALDISASTERANDEXPLAINSMEANINGANDCONTENTOFSTUDYOFTHISPAPERTHESECONDPARTCHARACTERSOFNATURALDISASTERTHEPARTSUMMARIZESSIXCHARACTERS，NAMELYSORTJSMUCH，F(xiàn)REQUENCYISHGH，DISTRIBUTINGISWIDE，DURATIONISLONG，RELATIONSHIPISSTRONGANDHAMISSERIOUSTHETHIRDPART“SPACETIMEDISTRIBUTINGOFNATURALDISASTERTHISPARTDISCUSSESEACHCHARACTEROFSPACEDISTRIBUTINGANDTIMEDISTRIBUTING，ATTEMPTSTOSYNTHESISSECTIONSCULLTHEFOURTHPARTCAUSEOFFORMATIONOFNATURAIDISASTERTHISPARTTAKESADARTGENERALCAUSEOFFORMATIONOFNATURALDISASTERINCLUDINGNATURAIFACTORANDMANMADECAUSEDISCUSSESJNDETAILFLOODOFCHANGIANGRIVERCOASTOFNEWBEACHANDNATURALDISASTEROFCITYTHE6燭PARTNATURALDISASTERAFFECTINGONENVIRONMENTANDITSDIVERSIFICATIONTHISPARTOPENSOUTSTRESSFULLYNATURALDISASTERAFFECTINGONENVIRONMENT，SUCHASDESTROYINGAGRICULTUREECOLOGYSYSTEM，RUINGWATERSYSTEMPROJECT，SOLICITANTEPIDEMICDISEASE，SCHLSTOSCME，THREMSAFETYOFIIFEANDESTATEANDSOONTHESIXTHPARTPREVENTIONANDREDUCINGOFDISASTERPROMOTINGECOLOGYSUSTAINABLEDEVELOPMENTFROMCONCEPTIONTOACTION，MOREPOINTOFVIEWTHISPARTPUTSFORWARDSIXMEASURESOFPREVENTIONANDCUREOFDISASTERSTICKINGTOPRINCIPLEOFPREVENTIONANDCURE，SIGNANDROOTSTANDSOUTIDEA“SCIENCEANDTECHNOLOGYISTHEFIRSTPRODUCTIVITY”THISPAPEREMBODIESSPIRITOFACTIVEOFINTEMATIONALLIGHTENNATURAIDISASTERDECADE，RUNSTHROUGHPURPOSEOFDECREASINGDISASTERANDPROMOTINGDEVELOPMENTEXCEPTBENEFITONPREVENTIONANDMITIGATIONDISASTERANDREALIZINGSUSTAINABLEDEVELOPMENTKEYWORDHUBEIPROVINCENATURALDISASTERPREVENTIONANDCUREOFDISASTERECOLOGYSUSTAINABLEDEVELOPMENT

簡(jiǎn)介：華中師范大學(xué)碩士學(xué)位論文山洪災(zāi)害防治效益計(jì)算方法研究以湖南省郴州市南溪鄉(xiāng)為例姓名黃為申請(qǐng)學(xué)位級(jí)別碩士專業(yè)政治經(jīng)濟(jì)學(xué)指導(dǎo)教師葉樺20051101⑧碩士學(xué)住論文MASTER’STHESLSINOURCOUNTRYFLASHFLOODDISASTERISFREQUENTLYHAPPENED，F(xiàn)LASHFLOODDISASTERISONEOFTHEIMPORTANTRESTRICTEDREASONSTOTHESOCIALECONOMICSUSTAINEDDEVELOPMENTINOURCOUNTRYTHELOSSASSESSMENTOFFLASHFLOODDISASTERMAYBEUSEDTOPROVIDETHEDECISIONMAKINGBASEFORFLASHFLOODPREVENTION，F(xiàn)IGHTINGDROUGHTTODEALWITHEMERGENCYCURINGDISASTERANDITALSOBEUSEDTOCHECKTHEDATAOFDISASTERSTATUS，SCIENTIFICALLYSUPERVISECUREDISASTERANDEVALUATETHEBENEFITPRODUCEDBYTHEBEHAVIOROFFLASHFLOODPREVENTIONANDDECREASEDISASTELFLASHFLOODCONTROLENGINEERING，ANDNONEENGINEERINGMEASURETHESTUDYTARGETOFTHISPAPERISTOEXPLORETHEMETHODOFCALCULATINGBENEFITOFPREVENTIONANDCUREFLASHFLOODANDWATERDISASTERLOSSASSESSMENTASWELL，ANDMAKEITPROGRESSTOWARDTHEPRACTICABILITYTHROUGHANALYSISTHEMECHANISMANDATTRIBUTECHARACTEROFFLASHFLOODDISASTER’THEPOSTULATEOFFLASHFLOODDISASTERLOSSASSESSMENTISDETERMINEDANALYSISANDSUMMARIZEDANUMBEROFAPPRAISEDLITERATURESEARCHOFBOTHDOMESTICANDABROAD，EXERCISINGMETHODOFPRACTICALLYSIMULATIONTOCALCULATETHEBENEFITOFPREVENTANDCURETOFLASHFLOOD，COMBININGTHEECONOMICALANALYSISOFAPPRAISEDRESULTCALCULATINGTHEBENEFITOFPREVENTEDORCONTROLLEDFLASHFLOODWITHMETHODOFFREQUENCYANDMETHODOFPRACTICALLYSIMULATIONPUTFORWARDTHECONTENTOFTHISPAPEREVALUATINGINDEXSYSTEMOFRISKANALYSISTHROUGHDISPOSEDTHERELATIONOFPROFITFACTORSEACHOTHERONDIFFERENTQUANTITATIVELYTHROUGH，PROVIDEDSCIENTIFICGISTOFTHEORYFORPROCESSINGSYNTHETICALLYAPPRAISEONPROJECTTHERESEARCHOFEVALUATIONMETHODHASBEENIMPLEMENTEDINNANXICOUNTYTHROUGHTHISMODELANDATTAINEDTHETARGETFAVORINGTHERESULTSSHOWSTHATTHEMETHODOFCALCULATINGBENEFITOFPREVENTIONANDCUREFLASHFLOODDISASTERISAPPLICABLEANDRELIABLE，ANDITCANBEUSEDINTHEAPPLICATIONOFFLASHFLOODCONTROLANDCOMMAND，EMERGENCYCURINGDISASTERCHECKINGTHEDATAOFDISASTERSTATUS，F(xiàn)LASHFLOODCONTROLCANEERINGBENEFITASSESSMENTKEYWORDFLASHFLOODDISASTERBENEFITPREVENTIONANDCURERESEARCH

簡(jiǎn)介：西安建筑科技大學(xué)碩士學(xué)位論文渭河流域（西安段）濕地水體環(huán)境激素污染及其防治的研究姓名薛梅申請(qǐng)學(xué)位級(jí)別碩士專業(yè)環(huán)境工程指導(dǎo)教師張志杰20030401西安建筑科技大學(xué)STUDYONENVIRONMENTHORMONEPOHUFIONINWEIHERIVERWATERSHEDAREAPNASEOFXIANANDPOHUFIONCONTROLSTRATEGYSPECIALTYENVIRONMENTALENGINEERINGGRADUATEXUEMEIACADEMICADVISORPROFESSOR動(dòng)AI】GZHIJIEABS，ⅡU肼’WETLANDSCALLEDKIDNEYOFTHEEARTHISONEOFTHETHREELA曙ESTEC岱YSTERNSINTHE四OBALA5ENVIROMNENTALPOLLUTIONANDHUⅡMBEINGDEDAUCFIONFILENATURALCYCLEOFWETLANDSECOSYSTERNISENDANGEREDSOSTUDYWETL觚DSANDPROTECTIONWETLMDSISODEOFTHEIMPORTANTPROBLERMTHATCONCEMEDBYPEOPLETHEPAPERSTUDYPOLLUTIONSITUATIONOFENVIRONMERLHORMONEANDSTRATEGYONWEIHERIVERWATERSHEDAILNTPBASEOFYDANWETLANDSWATERPOLLUTIONCONTMLATTHESAMETIME，THEPAPERPROVIDESBASISONWETLARDSPOLLUTIONCONTR01INTHISPAPERGENERALIDEATYPEANDFUNCTIONOFWETLANDSWEREEXPOUNDEDSYSTEMATICALLYATFIRSTRECOGNITIONANDUNDERSTANDINGOFWETLANDSSYSTEMISDEEPENEDTHECLASSIFLCALIONTOXIANWETLARDSANDASCERTAINXIANWETLARDSTOTALAIEA，DISTRIBUTIONISTHEFIRSTLIMEINXIARLENVIRONMENTHORMONEPOLLUTIONSITUATIONABOUTIⅢ1WETLANDSWALERINRECERTYEATSWASINVESLIGATEDTHOROUGHLYACCCRDINGTOTHEFACT34WETLANDSWATERSENVIRONMENTHORMONEPELLUTIONSITUATIONWEIBMONITOREDONTHESPOTANDACNEVEDMANYBASISDATASWHICHHASHI曲REFERENCEVALUEONTHEBASISOFARMLYSISANDEVALUAFIORLTHECONSNLCTEDWETLANDSIMITATEDEVICEWASESTABLISHEDFOREXPERIMENTALSTUDYONH昌PB，AROHANDLASFOURHORMONEPOLLUTARTDISPOSITIONTHEEXPEFIMERLACHIEVEDRELATIVESATISFIEDRESULTSLHERE瑚VINGEFFICIENCYIS7604％HG，87O粕口B，9398％ARON9510％IASTEDNICALSUPPONFORREMOVINGENVIRONMTMTHORMONEBYCONSTRUCTEDWETLARDSWASPROVIDEDINMEPAPE￡THESTRATEGYOFPROTECTXIANWETLANDSWASPROPOSEDFROMSIDESOFSTRENGTHENCENSTRACTIONWETLANDSNATURALPROTECTIONAREAANDCONSCIOTTSOFWETLANDSPROTECLIONDE～它1叩I119ANDPROTEC硅NGWEⅡANCISWA證FIESOⅢCEE忙。THERESULTSOFSTUDYFILLINTHEBLANKOFXIANWETL印ADSRESEARCHANDPROVIDEIMPOFAMTMATERIALSFORSTUDYANDPMTECTIENOFXIANWETLARDSTHEFIAXITFULRESULTSHASBETTERPMCDCALVALUEKEYWORDSXIANWETLANDS；ENVIRONMENTHORMONE；POLLUTIONCONTROLTHESISAPPLICATIONFUNDAMENTALTHISPAPERISSUPPORTANTEDBYNATURALFOUNDATIONOFXIANSCIENCECOMMITTEE

簡(jiǎn)介：武漢理工大學(xué)博士學(xué)位論文交通災(zāi)害中的載運(yùn)工具致災(zāi)機(jī)理及其預(yù)警管理系統(tǒng)研究姓名王超申請(qǐng)學(xué)位級(jí)別博士專業(yè)載運(yùn)工具運(yùn)用工程指導(dǎo)教師蕭漢梁佘廉200241武漢理工大學(xué)博士學(xué)位論文提高交通環(huán)境質(zhì)量具有同等重要性，在構(gòu)建“人、載運(yùn)工具、環(huán)境、管理”的關(guān)系模型基礎(chǔ)上，實(shí)證調(diào)研與評(píng)價(jià)了我國(guó)公路、水運(yùn)安全管理體系中的管理主體、管理對(duì)象、管理目標(biāo)、管理方法、管理過程的現(xiàn)狀與不足。4提出了構(gòu)建交通載運(yùn)工具致災(zāi)預(yù)警管理系統(tǒng)的基本原理。即交通載運(yùn)工具致災(zāi)預(yù)警管理原理、預(yù)警管理系統(tǒng)的目標(biāo)與功能、預(yù)警管理組織體系、預(yù)警管理的工作內(nèi)容、運(yùn)轉(zhuǎn)模式、工作流程以及信號(hào)輸出方式。5構(gòu)建了基于區(qū)域交通公路與水運(yùn)的載運(yùn)工具安全狀況、載運(yùn)工具破壞環(huán)境狀況、載運(yùn)工具安全管理和緊急救援管理四個(gè)方面的三級(jí)評(píng)價(jià)指標(biāo)體系，運(yùn)用神經(jīng)網(wǎng)絡(luò)模型建立了指標(biāo)體系的處理模型，探討了針對(duì)監(jiān)測(cè)的結(jié)果可以采取的對(duì)策。6編制了基于區(qū)域公路交通使用的區(qū)域車輛致災(zāi)預(yù)警管理系統(tǒng)應(yīng)用軟件。關(guān)鍵詞；交通災(zāi)害載運(yùn)工具；預(yù)警管理；系統(tǒng)2

簡(jiǎn)介：大連理工大學(xué)碩士學(xué)位論文復(fù)雜網(wǎng)絡(luò)中心性及其對(duì)災(zāi)害傳播影響的研究姓名郭天柱申請(qǐng)學(xué)位級(jí)別碩士專業(yè)管理科學(xué)與工程指導(dǎo)教師榮莉莉20081201復(fù)雜網(wǎng)絡(luò)中心性及其對(duì)災(zāi)害傳播影響的研究RESEARCHONCOMPLEXNETWORKCENTRALITYANDAPPLICATIONSINDISASTERBROADCASTINGABSTRACTDISCREPANCIESAMONGNODESINCOMPLEXNETWORKAREOBVIOUSHOWTOEVALUATEIMPORTANCEOFNODESINCOMPLEXNETWORKHASBECOMEAVITALPROBLEMINCOMPLEXNETWORKRESEARCHESPECIALLYINAPPLICATIONFIELDSTHISPAPERFOCUSESONNETWORKCENTRALITY，ANDHASDONESOMECONCRETERESEARCHESFROMBOTHTHEORETICALANDPRACTICALPERSPECTIVESCOMPAREDWITHTRADITIONALCENTRALITYMEASURESTHISPAPERSTRENGTHENSTHECOMBINATIONOFPRACTICALREQUIRESANDNETWORKTOPOLOGYCHARACTERSTODETERMINEANODE’SIMPORTANCE，RATHERTHANTOPOLOGYSTRUCTUREONLYWEALSOPROPOSEAMATCHMETHODBASEDONANALYSISOFCENTRALITYDIFFERENCESANDAPPLICATIONREQUIRESHELPINGUSERTOFINDAPROPERCENTRALITYMEASUREACCORDINGTEALREQUIRESASTOEMERGENCYCHAINREACTIONCHARACTERISTICS，WEINTRODUCEMODELINGTHEORYOFCOMPLEXNETWORKTOSETUPAGENERALFRAMEWORKTODESCRIBEHOWASINGLEEMERGENCYEVENTEVOLVESTOAREGIONALDISASTERCHAINORNETWORKFROMDIFFERENTNETWORKHIERARCHIES，THESAMEEMERGENCYEVENTMAYHAVEVARIOUSPROPERTIES，WHICHCARLBESIMULATEDTHROUGHOURDISASTERDIFFUSIONMODELANDREGIONALKEYEVENTC髓ALSOBEDETECTEDTHEORETICALLY，THISPAPERISBASEDONRECENTTHEORYOFCOMPLEXNETWORKSTARTINGFROMCENTRALITYDEFINITIONDIFFERENTCENTRALITYMEA圈JRESHAVEBEENDISCUSSEDTHEREBASICCATEGORIESOFNODERELATIONPROBLEM，SHORTPATHPROBLEMANDNETWORKFLOWPROBLEMAREPROPOSEDTODESCRIBETHEDIFFERENCEOFCENTRALITYMEASUREONTHEOTHERHAND，PRACTICALNETWORKREQUIRESARECONCLUDEDTONODEREGION，INFORMATIONTRANSPARENCYANDNODEDYNAMICSBASEDONBILATERALRESEARCHONTHEORYANDAPPLICATIONREQUIRESWESETUPAMATCHMODEL，WHICHCANGIVESOMEHINTSTOSOLVETHEPROBLEMOFDIFFERENTMEASURES，APPLIEDINTHESAMENETWORKBROUGHTOUTDIFFERENTRESULTSWHATISMORE，WEALSODISCUSSTHEPOSSIBILITYOFHOWTOINTEGRATEDIFFERENTMEASURESTOASINGLENEEDAGENERALFRAMEWORKISFOUNDEDTODESCRIBEEMERGENCYEVOLUTIONMODES，SUCHASSINGLEEMERGENCY，DISASTERCHAMANDDISASTERNETWORKTHISMETHODCANMAKEALLCONNECTIONAMONGVARIOUSEMERGENCIESWITHINAREGIONCLEAR，ANDALSOHELPADMINISTRATORTEALIZEWHICHEVENTMAYBETHEPOTENTIALDISASTERPRACTICALLY，THISPAPERINSISTSFINDINGAPROPERWAYTOAPPLYCENTRALITYTHEORYTEALNETWORKFIRSTLY，WEEXTRACTREALNETWORKREQUIRESANDANALYZEHOWTOPOLOGYDETERMINENODEIMPORTANCEWESTRENGTHENTHEPOSITIVEASPECTOFNETWORKNEEDTEDEFINENODEIMPORTANCEASCONSIDERINGTODIFFERENTHIERARCHIESPLAYDIFFERENTROLESINSOMEBROADCASTMECHANISMWEPROPOSEANODESUBTREEMETHODTOQUANTIFYHIERARCHYINFLUENCE，ANDALSOINTRODUCEALL

簡(jiǎn)介：重慶大學(xué)工程碩士學(xué)位論文宜賓市酸雨污染及其防治對(duì)策研究碩士研究生趙賢杰指導(dǎo)教師姜文超博士兼職導(dǎo)師趙一化高級(jí)工程師工程領(lǐng)域環(huán)境工程重慶大學(xué)城市建設(shè)與環(huán)境工程學(xué)院二00七年月中文摘要摘要四川盆地酸雨問題一直比較突出，作為其中重要工業(yè)城市之一，宜賓市的酸雨?duì)顩r比較嚴(yán)重，在國(guó)內(nèi)污染中一直居于前列，成為四川盆地酸雨污染的典型地區(qū)之一，因此，深入研究宜賓市酸雨特征及其形成機(jī)制和影響因素，不僅對(duì)宜賓市酸雨防治有重要的現(xiàn)實(shí)意義和理論價(jià)值，而且對(duì)于周邊城市酸雨研究和防治也將起到積極的作用。本文對(duì)宜賓市2001年一2005年的降雨監(jiān)測(cè)數(shù)據(jù)進(jìn)行了統(tǒng)計(jì)分析，對(duì)酸雨的時(shí)空分布特征進(jìn)行研究，并探討了宜賓市各點(diǎn)位、代表性月份、不同年份降雨化學(xué)組分的特點(diǎn)以及對(duì)降雨酸度影響較大的離子，結(jié)合土壤、環(huán)境空氣質(zhì)量、氣候氣象、社會(huì)經(jīng)濟(jì)等資料，對(duì)宜賓市酸雨污染狀況和酸雨形成以及影響因素等進(jìn)行了綜合研究，并結(jié)合宜賓市2020年城市發(fā)展規(guī)劃，對(duì)宜賓市酸雨污染未來發(fā)展趨勢(shì)進(jìn)行了預(yù)測(cè)。主要結(jié)論如下①根據(jù)降雨酸度及其時(shí)空分布特征分析，宜賓市已經(jīng)受到了較嚴(yán)重的酸雨污染。降雨量對(duì)降雨酸度有一定的影響，其中降雨量較少的月份如L月、2月、N月，降雨酸度均較高。PM，。對(duì)降雨酸度具有較明顯的緩沖作用②降雨化學(xué)組分全分析結(jié)果表明宜賓市酸雨類型為硫酸和硝酸混合型。離子總量不是降雨酸度的決定性影響因素。降雨酸度與降雨中50、N口相關(guān)性較好，而降雨中NH才、CAZ、MGZ附降雨酸度具有抑制作用，其中C擴(kuò)十抑制作用較突出③降雨的電導(dǎo)率、PH值與環(huán)境空氣質(zhì)量相關(guān)性較差，降雨中S討一與大氣中SQ的相關(guān)性較明顯。區(qū)域氣候條件、當(dāng)?shù)刈匀粭l件、地形地貌、工業(yè)布局等對(duì)酸雨的形成具有較明顯的影響④如果達(dá)到2020年城市發(fā)展目標(biāo)，并實(shí)現(xiàn)工業(yè)結(jié)構(gòu)調(diào)整，宜賓市的酸雨污染狀況將會(huì)在很大程度上得到改善。然而在短期內(nèi)，宜賓市酸雨污染狀況不會(huì)有明顯的改善，若不繼續(xù)加大對(duì)50的監(jiān)管，宜賓市酸雨污染甚至?xí)羞M(jìn)一步惡化⑤根據(jù)對(duì)宜賓市酸雨污染狀況及其影響因素的分析，宜賓市酸雨防治對(duì)策總體上應(yīng)當(dāng)以防為主，防治結(jié)合，綜合治理關(guān)鍵詞宜賓市，酸雨，化學(xué)組分，影響因素，防治

簡(jiǎn)介：中國(guó)科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于元胞自動(dòng)機(jī)的災(zāi)害模型及其GIS實(shí)現(xiàn)姓名洪亦修申請(qǐng)學(xué)位級(jí)別碩士專業(yè)安全技術(shù)及工程指導(dǎo)教師廖光煊20070501中雷科學(xué)技術(shù)人學(xué)碩上學(xué)位論文基于元胞自動(dòng)機(jī)的災(zāi)害模塹及其GLS實(shí)現(xiàn)ABSTRACTITGOESWITHOUTSAYINGTHATPUBLICSAFETYPROBLEMSISBECOMINGMOREANDMORESERIOUSANDDESTRUCTIVEWITHTHEFASTECONOMICGROWTHANDURBANIZATIONPROCESSWHILETHEOVERALLINCIDENTMANAGEMENTLEVELINCHINAISSTILLLEFTUNDEVELOPEDAIMINGATTHEGREATDEMANDOFIMPROVINGPREVENTIONPREPAREDNESS，RESPONSEANDRECOVERYCAPABILITIESANDCOORDINATIONPROCESSESACTOSSTHECOUNTRYACOMPREHENSIVEH越刪SIMULATIONMETHODBASEDONCELLULARAUTOMATAANDITSTECHNICALESTABLISHMENTUSINGGEOGRAPHICALINFORMATIONSYSTEMWOUNDFURTHERIMPROVETHEEFFECTIVENESSOFEMERGENCYRESPONSEPROVIDERSANDTHISAPPROACHWILLBECAREFULLYEXAMINEDINTHETHESISWEREEXAMINEDTHEFAMOUSSELFORGANIZEDCRITICALITYOFFORESTFIRETHEALGORITHMSAREESTABLISHEDANDCODESATEOPTIMIZEDUSINGSOMEADVANCEDTECHNICALMEAL峙，INCLUDINGPARALLELIZINGTHECODES，THESIMULATIONFOLLOWSTHEEXACTRESULTSWITHTHETHEORETICALEXPLANATIONOFTHEMODEL，WHICHSUGGESTSTHATTHEIMPROVEDALGORITHMWILLBEBETTERTHANTHOSEOLDONESINSIMULATINGSOCFORESTFIREMODELSHAZARDOUSGASDISPERSIONISSIMULATEDUSINGANOTHERMEANSOFCELLULARAUTOMATATECHNICALLYTHELATTICEBOLTZRNATMMETHODTHISSIMULATIONISLATERCOMPAREDWITHOTHERMODELSANDREALSCENESANDGETSGOODRESULTSTHEHAZARDSIMULATIONMETHODISESTABLISHEDINTHEGIGPLATFORM、一MFUNCTIONSINCLUDINGPREDICTION，DECISIONMAKINGANDOPTIMIZEDRESOURCEALLOCATINGRISFIRSTESTABLISHEDASAPROTOTYPESYSTEMFORDEMONSTRATION，WHICHHASALREADYPROVEDTHATTHESIMULATIONMODELSTOGETHERWITHITSGISESTABLISHMENTCANBCAUSEFULAPPROACHINARCHIVINGAINCIDENTMANAGEMENTSYSTEMKE即VORDSPUBLICSAFEW；CC|LULAFAURORAATECOMPLEX鼬淵CWOGTAPHICALINFORMATIONSYSTEM；SELFORGANIZEDCRITICALITY；PARALLELCOMPUTING；LATTICCBORZMANNMETHOD；INCIDENTMANAGEMENT4

簡(jiǎn)介：摘要建國(guó)40年間19491988年海南島自然災(zāi)害及其抗救舉措研究摘要海南島歷來是自然災(zāi)害頻發(fā)、重發(fā)區(qū)本文以歷史唯物主義為指導(dǎo)，運(yùn)用歷史學(xué)、地理學(xué)、社會(huì)學(xué)等相關(guān)學(xué)科的理論與方法，探究建國(guó)后19491988年海南島自然災(zāi)害發(fā)生的環(huán)境、種類、特征及影響，總結(jié)當(dāng)時(shí)的防災(zāi)救災(zāi)措施，期望能對(duì)現(xiàn)今海南島的防災(zāi)減災(zāi)具有一定借鑒意義自然災(zāi)害的發(fā)生乃自然這一外營(yíng)力作用于人類社會(huì)的過程，是自然環(huán)境和社會(huì)環(huán)境共同影響的結(jié)果建國(guó)后40年間影響海南島自然災(zāi)害的環(huán)境一方面，海南島地區(qū)復(fù)雜的氣候、地形、土壤及水文是造成該地區(qū)多災(zāi)的重要自然地理因子；另一方面，人們對(duì)海南島開發(fā)力度不斷加大，其原始森林大量被采伐，自然生態(tài)環(huán)境曾一度趨于惡化，再加上海南島經(jīng)濟(jì)和社會(huì)發(fā)展相對(duì)比較落后，農(nóng)田基礎(chǔ)薄弱，成災(zāi)的強(qiáng)度和頻度不斷加大；此外，五六十年代“左傾”思想使A4RJ盲目自信，疏于對(duì)災(zāi)害的防治，也加深了災(zāi)害的破壞程度由于自然和社會(huì)環(huán)境的影響，建國(guó)后40年間，海南島發(fā)生了臺(tái)風(fēng)災(zāi)、旱災(zāi)、洪澇災(zāi)，低溫冷害、潮災(zāi)、龍卷風(fēng)、雹災(zāi)、蟲災(zāi)和雷電災(zāi)等九種自然災(zāi)害，總計(jì)235次，平均每年約6次。其中臺(tái)風(fēng)災(zāi)是海南島破壞性最大的災(zāi)害，40年問，海南島出現(xiàn)的36次臺(tái)風(fēng)災(zāi)中有34次造成民眾傷亡和生產(chǎn)生活設(shè)施損壞50年代和80年代是臺(tái)風(fēng)災(zāi)的多發(fā)期旱災(zāi)是海南島最為頻繁的災(zāi)害，建國(guó)后40年問共發(fā)生37次，平均每年09次50年代80年代旱災(zāi)發(fā)生次數(shù)比較均衡，但7080年代旱災(zāi)破壞程度比前代要更為嚴(yán)重洪澇災(zāi)破壞性僅次于臺(tái)風(fēng)災(zāi)害海南島洪澇災(zāi)主要分為久雨成災(zāi)、暴雨成災(zāi)非臺(tái)風(fēng)暴雨和臺(tái)風(fēng)暴雨成災(zāi)，80年代洪澇災(zāi)最為頻繁低溫冷害、潮災(zāi)及其它四種災(zāi)害在當(dāng)時(shí)雖破壞性不大，但也屬常見災(zāi)害。在海南島自然災(zāi)害多種類，高頻次的同時(shí)，海南島自然災(zāi)害叉具有明顯的季節(jié)性夏秋季節(jié)是海南島自然災(zāi)害集中暴發(fā)期，海南島60％以上的自然災(zāi)害都出現(xiàn)在夏秋時(shí)節(jié)就具體災(zāi)種而言，旱災(zāi)主要出現(xiàn)在冬春季，臺(tái)風(fēng)災(zāi)和洪澇災(zāi)集中于夏秋季各種自然災(zāi)害區(qū)域分布也很明顯旱災(zāi)以西、南沿海地區(qū)最為嚴(yán)重，歷史上大、中旱災(zāi)多摘要STUDY0NHAINANISLANDNATUREDISASTERSANDTHERESISTINGMEASURESOFTHEMDURINGTHE40YEARS19491988ABSTRACTHAINANISLANDISADISTRICTOFHEAVYDISASTERSWITHTFIGHFREQUENCYINTHEHISTORYINSTRUCTEDBYTHETHEORYOFHISTORICALMATERIALIS，UTILIZINGTHEMETHODOLOGIESOFHISTORYGEOGRAPHYSOCIOLOGYANDOTHERRELATIVES，THISARTICLEISAIMEDATEXPLORINGTHEENVIRONMENTS，CATEGORIES，CHARACTERISTICSOFTHEDISASTERSINHAINANISLANDANDTHEIREFFECTS，SINCETHEFOUNDATIONOFTHEPRC19491988，MANAGINGTOOUTIINEALLTHEEFFECTIVEMEASURESTAKENTOFIGHTWITHANDRESISTTHEDISASTERSATTHATTIME，WITHMYPRIVATEHOPETHATITCERTAINLYCANOFFERSOMEBENEFICIALGUIDINGSANDEXPERIENCETOTODAY’SDISASTERPROJECTOFHALNANISLANDTHEOCCURRENCEOFNATURALDISASTERSISAPROCESSTHATTHENATUREWHICHSEEMSTOBEALLOUTSIDEFORCEAFFECTSHUMANSOCIETYARESULTOFINTERACTIONSOFNATURALANDSOCIALENVIRONMENTSTHEENVIRONMENTSOFNATILIEANDSOCIETYAREONONEHAND，THECOMPLEXCLIMATE，TERRAIN，RIVERANDSOILVEGETATIONOFHALNAILISLANDISONEIMPORTANTNATURESITUATIONLEADINGTOHEAVYDISASTERS；ONTHEOTHERHAND，ASOURNATIONCONTINUOUSLYEXPLORESHAINANISLANDFASTERANDFASTERWITHMUCHOFTHEORIGINALFORESTCUTTHEECOLOGYOFHAINANISLANDONCETURNEDWORSEANDWORSE；FURTHERMORE，WITHTHELESSDEVELOPEDECONOMYANDSOCIETYANDPOORBASEMENTFORFARMLANDSTHEN，THEDISASTERSAREHEAVIERANDHEAVIERWITHAHIGHERANDHIGHERFREQUENCYBESIDES，THELEFTPREFERENCEIDEOLOGYOFTHESPECIALPERIOD19501960MADEMOSTOFPEOPLETHENBLINDLYSELFCONFIDENT，IGNORINGRESISTINGANDTREATINGTHEDISASTERS，WHICHUNDOUBTEDLYSTRENGTHENEDTHEDAMAGESOFDISASTERSFORTHEINTERACTIONOFTHENATURALANDSOCIALENVIRONMENTS，DURINGTHE40YEARS，THEMAINNINEDISASTERSOFTYPHOON，DROUGHT，F(xiàn)LOOD，COLD，TIDYPESTANDTHUNDERFLASHANDEVENOTHERSMALLDISASTERSBROKEOUTINHMNANISLAND，ADDINGUPTO235，6TIMESPERYEARONAVERAGE，AMONGWHICHTYPHOONHASTHEHEAVIESTDAMAGE，DURINGTHE40YEARS，THEREWERE34TIMESOFALLTHE36TIMESTYPHOONDISASTERSHAPPENING，CAUSINGLOSSORDAMAGEOFMASSIII

簡(jiǎn)介：贛專太海碩士學(xué)位論西安地裂縫工程災(zāi)害機(jī)理模式及防治對(duì)策研究導(dǎo)師姓名職稱申請(qǐng)學(xué)位級(jí)別論文提交日期學(xué)位授予單位潘春娟門玉明教授答辯委員會(huì)主席學(xué)位論文評(píng)閱人楊魯飛楊魯飛王勇智亨M凇靴泓F，二一7一CI類訂O，1又ABSTRACTGROUNDFISSURESHAVEBEENTHEMAINENVIRONMENTGEOLOGICALDISASTERINXI’ALLCITYSINCE1950S，14GROUNDFISSURESHAVEBEENFOUNDINXI’ANAREA，WHICHHASCAUSED4BILLIONYUAN’SDIRECTLOSSESTHEWORSEISTHATNEWFISSURESARECOMINGFORTHANDDEVELOPEDASARESULT，THEUTILIZATIONOFBUILDINGLANDANDURBANPLANNINGANDDEVELOPMENTOFXI’ANCITYAREBADLYRESTRICTED，ANDGREATHIDDENTROUBLEISBUFFEDFORCITY’SENGINEERINGCONSTRUCTIONSOTHEGREATGEOHAZARDDIFFICULTPROBLEMTOBESOLVEDURGENTLYISTOPERFORMTHERESEARCHONGENESISANDDISASTERCAUSINGMECHANISMANDWORKOUTECONOMICALANDEFFECTIVECOUNTERMEASURESPRESENTLYTHEDISTRIBUTIONANDACTIVITYCHARACTERISTICOFXI’ANGROUNDFISSURESHAVEBEENFOUNDOUTBASICALLYBUTITSGENETICMECHANISMISIMMATUREBEINGMANYDIFFERENTPOINTSOFVIEWANDDISPUTESONITFORTHATTHEREARESOMEKEYBASICPROBLEMSBEINGUNRESOLVEDFURTHERMORE，THERESEARCHONTHECOUNTERMEASURESOFMINIMIZINGANDDEFENDINGDISASTERISFAR劬MSUFFICIENCYBECAUSEOFTHERESTRICTIONOFGENESISANDDISASTERCAUSINGMECHANISMRESEARCHINGDEGREETHEPROBLEMSANDDEFICIENCIESINTHERESEARCHOFXI’ANGROUNDFISSURESWEREANALYZEDBASEDONITTHISPAPERSTUDYONTHEDESTRUCTIONMODEOFBUILDING，ANDHAVEPUTFORWARDPROPOSALFORCOUNTERMEASUREOFPREVENTIONSOMEMAINWORKAREGOTASFOLLOWSINTHISPAPER1THISPAPERSPECIFICTOTHEFEATURESOFDEFORMATIONOFGROUNDFISSURESTOBUILDINGSINXI’AN，ITISSTUDYONCLASSIFICATIONOFTHEDESTRUCTIONMODEOFBUILDING，BASEDONTHESURVEYOFBUILDINGSWHICHARECROSSINGGROUNDFISSURES2THISPAPERISBYMEANSOFTHEMETHODOFIMITATIONONPLASIX，ANDASSISTEDBYTHEMETHODOFNUMERICALVALUE，TAKINGFORTHE兀OFGROUNDFISSURESINXI’ALLCITYSTUDYTHEVARIATIONOFSTRESSFIELDANDDISPLACEMENTFIELDOFTHEOVERLYINGSOILLAYERWHICHTHENORMALFAULTQUALITATIVEGROUNDFISSURESLEADTOANDITSEPARATELYCALCULATEDOUTOFTHEVARIATIONOFTHEFEATURESOFDEFORMATION，WHENBRICKMASONRYBLOCKMASONRYANDSTONEMASONRYACTASSOLELYMATERIALOFTHEBUILDING3TAKINGFORTHE六OFGROUNDFISSURESINXI’ALLCITYTHISPAPERIMITATEDDISASTERPREVENTIONOFTHETHREELEVELBUILDINGSWHICHWERECROSSINGTHEGROUNDFISSURESANDTHEWIDTHOFTHEINFLUENCINGZONEOFGROUNDFISSUREHAZARDSBASEDONTHEFINITEELEMENTANALYSIS，ITCALCULATEDTHESAFETYDISTANCEOFHANGINGWALLANDFOOTWALLKEYWORDSXI’ANGROUNDFISSURES，ENGINEERINGDISASTERMECHANISMMODE，NUMERICALANALYSIS，COUNTERMEASUREOFPREVENTION，SAFETYDISTANCEIL

簡(jiǎn)介：Y、90878分類號(hào)基122學(xué)號(hào)2QQ§2Q3Q南京愛襲戈蓬碩士學(xué)位論文江蘇省畜禽糞便污染及其防治途徑馬德云指導(dǎo)教師塑堡教援專業(yè)學(xué)位疊境王捏殛土研究領(lǐng)域‘』I鼗。藍(lán)王猩|研究方向．．生盔巫縫像芷答辯日期三QQ五生土二旦江蘇省畜禽糞便污染及其防治途徑總數(shù)達(dá)6．2萬戶。但總體上看，畜禽養(yǎng)殖場(chǎng)污染防控仍然難盡人意。畜禽養(yǎng)殖場(chǎng)的規(guī)劃布局不合理、監(jiān)督乏力、因資金缺乏治污設(shè)施運(yùn)行難以為繼、資源化利用技術(shù)配套不足、畜禽糞便利用率低等F7題在全省還普遍存在。畜禽養(yǎng)殖業(yè)對(duì)環(huán)境的污染有日益加重的趨勢(shì)。尤其是一些小規(guī)模的養(yǎng)殖場(chǎng)，更是成為防控工作中的難題。江蘇屬于沿海經(jīng)濟(jì)較發(fā)達(dá)省份，在長(zhǎng)江三角洲經(jīng)濟(jì)圈中有舉足輕重的地位，在實(shí)現(xiàn)經(jīng)濟(jì)較快增長(zhǎng)的同時(shí)，應(yīng)特別重視畜牧業(yè)對(duì)環(huán)境的污染問題，力求實(shí)現(xiàn)經(jīng)濟(jì)、社會(huì)、生態(tài)協(xié)調(diào)可持續(xù)發(fā)展。解決畜禽污染，必須牢固樹立科學(xué)的發(fā)展觀，按照構(gòu)建和諧社會(huì)的要求，借鑒發(fā)達(dá)國(guó)家和地區(qū)的經(jīng)驗(yàn)和做法，加強(qiáng)對(duì)畜禽污染防治的立法，加強(qiáng)對(duì)畜禽養(yǎng)殖場(chǎng)的規(guī)劃和管理，不斷增加投入，實(shí)行對(duì)畜禽糞便污染的全程控制管理，積極發(fā)展生態(tài)型畜牧養(yǎng)殖業(yè)，促進(jìn)生態(tài)環(huán)境的良好循環(huán)。關(guān)鍵詞畜禽糞便污染防治江蘇省11