簡介：分類號單位代碼10389密級學(xué)號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)特性測定和防治藥劑篩選性測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間二○一七年四月IDENTIFICATION，ACTERISTICSFUNGICIDESCREENINGOFPATHOGENSONPHOEBEBOURNEIBYJINYAJIESUPERVISEDBYPROFGUOWENSHUOSONGZHANGATHESISSUBMITTEDTOFUJIANAGRICULTUREFESTRYUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTSFPROFESSIONALMASTER’SDEGREEINFESTRYCOLLEGEOFFESTRYFUJIANAGRICULTUREFESTRYUNIVERSITYFUJIANPRCHINACOMPLETIONDATE201704COMMENCEMENTDATE201704

簡介：南開大學(xué)碩士學(xué)位論文膜法實現(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學(xué)位級別碩士專業(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，本論文提出的相對吸附阻力概念可用來比較谷氨酸菌和可溶蛋白對聚砜膜的污染能力。相同實驗條件下，蛋白質(zhì)分予的相對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)除菌體過程中的長期不可逆通量降低主要是蛋白質(zhì)分子污染所致，設(shè)計料液預(yù)處理及污染膜的清洗方案應(yīng)以此為依據(jù)。第七，谷氨酸菌對絮凝的蛋白質(zhì)分子有預(yù)過濾作用，這一觀點可從SEM照片直接得到證實，適當選擇溶液化學(xué)條件，可以有效利用發(fā)酵液中的菌體來降低蛋白質(zhì)分子對膜的吸附污染，進而降低吸附阻力，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，進而影響濾餅的孔隙度，并對清洗效果產(chǎn)生直接影響。最后，建立了該體系的清洗動力學(xué)方程，利用該方程可對給定清洗條件、清洗時間的清洗效率進行直接估算，同時提出了聯(lián)合清洗技術(shù)，其中NAOHSDS的清洗能力最強，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)

簡介：中國海洋大學(xué)碩士學(xué)位論文黃河三角洲海岸侵蝕災(zāi)害及其對策研究姓名柯昶申請學(xué)位級別碩士專業(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國內(nèi)外治理煤礦酸性水概況、水平和發(fā)展趨勢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1923研究內(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)測及評價21321煤礦酸性水水質(zhì)監(jiān)測21322煤礦酸性水水質(zhì)評價233221普安煤礦酸性水水質(zhì)評價233222興仁煤礦酸性水水質(zhì)評價243223織金煤礦酸性水水質(zhì)評價253224麥坪煤礦酸性水水質(zhì)評價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試驗材料與方法28413中和反應(yīng)特性曲線試驗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象，采用實地調(diào)察、試驗分析的方法，對煤礦酸性水的PH、FE2、SS、重金屬含量進行分析并用石灰石、石灰乳、粉煤灰三種材料對煤礦酸性水進行處理，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)查的四個煤礦酸性水中的PH、SS、PB、FE、MN都分別超標。2．用不同量的石灰乳中處理同一定量煤礦酸性水時，隨著石灰乳量的增加，PH值不斷的升高，但PH值不會超過9，同時PH在13時變化不大，這是由于煤礦酸性水中FE3被沉淀為FEOH3時,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)強度下，測定不同反應(yīng)時間內(nèi)的PH值的變化時發(fā)現(xiàn)在處理含鐵量較低的煤礦酸性水時PH值上升很快一分鐘就可以到達7左右；而處理含鐵量較高的煤礦酸性水時PH值上升較慢，需二十分鐘才可以到達7左右。同時發(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會生成膠體，這些膠體會吸附重金屬離子。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。3．用石灰石處理同一定量的煤礦酸性水時，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、處理的時間較長。取出石灰石反應(yīng)后的水樣，靜止觀察其沉淀物的分離時間，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小時左右，分層才較為清晰。同時，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，同時粉煤灰中含有OSIO鍵以及梭基、羥基等含氧的活性官能團，

簡介：分類號X必密級Y856586單位代碼10618學(xué)號03270104重慶交通大學(xué)碩士學(xué)位論文論文題目自然災(zāi)害鏈式效應(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妻纛監(jiān)L叢拯評閱人趕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)害鏈式結(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)害鏈式效應(yīng)結(jié)構(gòu)理論；自然災(zāi)害鏈式效應(yīng)；災(zāi)害鏈式類型；結(jié)構(gòu)關(guān)系；數(shù)學(xué)關(guān)系模型；鏈式關(guān)系環(huán)；一般災(zāi)害鏈；

簡介：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)展姓名彭紅霞申請學(xué)位級別碩士專業(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)害防治效益計算方法研究以湖南省郴州市南溪鄉(xiāng)為例姓名黃為申請學(xué)位級別碩士專業(yè)政治經(jīng)濟學(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學(xué)位級別碩士專業(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

簡介：武漢理工大學(xué)博士學(xué)位論文交通災(zāi)害中的載運工具致災(zāi)機理及其預(yù)警管理系統(tǒng)研究姓名王超申請學(xué)位級別博士專業(yè)載運工具運用工程指導(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、載運工具、環(huán)境、管理”的關(guān)系模型基礎(chǔ)上，實證調(diào)研與評價了我國公路、水運安全管理體系中的管理主體、管理對象、管理目標、管理方法、管理過程的現(xiàn)狀與不足。4提出了構(gòu)建交通載運工具致災(zāi)預(yù)警管理系統(tǒng)的基本原理。即交通載運工具致災(zāi)預(yù)警管理原理、預(yù)警管理系統(tǒng)的目標與功能、預(yù)警管理組織體系、預(yù)警管理的工作內(nèi)容、運轉(zhuǎn)模式、工作流程以及信號輸出方式。5構(gòu)建了基于區(qū)域交通公路與水運的載運工具安全狀況、載運工具破壞環(huán)境狀況、載運工具安全管理和緊急救援管理四個方面的三級評價指標體系，運用神經(jīng)網(wǎng)絡(luò)模型建立了指標體系的處理模型，探討了針對監(jiān)測的結(jié)果可以采取的對策。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)害載運工具；預(yù)警管理；系統(tǒng)2

簡介：大連理工大學(xué)碩士學(xué)位論文復(fù)雜網(wǎng)絡(luò)中心性及其對災(zāi)害傳播影響的研究姓名郭天柱申請學(xué)位級別碩士專業(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，宜賓市的酸雨狀況比較嚴重，在國內(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制和影響因素，不僅對宜賓市酸雨防治有重要的現(xiàn)實意義和理論價值，而且對于周邊城市酸雨研究和防治也將起到積極的作用。本文對宜賓市2001年一2005年的降雨監(jiān)測數(shù)據(jù)進行了統(tǒng)計分析，對酸雨的時空分布特征進行研究，并探討了宜賓市各點位、代表性月份、不同年份降雨化學(xué)組分的特點以及對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、社會經(jīng)濟等資料，對宜賓市酸雨污染狀況和酸雨形成以及影響因素等進行了綜合研究，并結(jié)合宜賓市2020年城市發(fā)展規(guī)劃，對宜賓市酸雨污染未來發(fā)展趨勢進行了預(yù)測。主要結(jié)論如下①根據(jù)降雨酸度及其時空分布特征分析，宜賓市已經(jīng)受到了較嚴重的酸雨污染。降雨量對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?shù)刈匀粭l件、地形地貌、工業(yè)布局等對酸雨的形成具有較明顯的影響④如果達到2020年城市發(fā)展目標，并實現(xiàn)工業(yè)結(jié)構(gòu)調(diào)整，宜賓市的酸雨污染狀況將會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有明顯的改善，若不繼續(xù)加大對50的監(jiān)管，宜賓市酸雨污染甚至?xí)羞M一步惡化⑤根據(jù)對宜賓市酸雨污染狀況及其影響因素的分析，宜賓市酸雨防治對策總體上應(yīng)當以防為主，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

簡介：中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于元胞自動機的災(zāi)害模型及其GIS實現(xiàn)姓名洪亦修申請學(xué)位級別碩士專業(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機的災(zāi)害模塹及其GLS實現(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

簡介：摘要建國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)，運用歷史學(xué)、地理學(xué)、社會學(xué)等相關(guān)學(xué)科的理論與方法，探究建國后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)當時的防災(zāi)救災(zāi)措施，期望能對現(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)生乃自然這一外營力作用于人類社會的過程，是自然環(huán)境和社會環(huán)境共同影響的結(jié)果建國后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)濟和社會發(fā)展相對比較落后，農(nóng)田基礎(chǔ)薄弱，成災(zāi)的強度和頻度不斷加大；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環(huán)境的影響，建國后40年間，海南島發(fā)生了臺風(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235次，平均每年約6次。其中臺風(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重洪澇災(zāi)破壞性僅次于臺風(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)非臺風(fēng)暴雨和臺風(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)害在當時雖破壞性不大，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，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)在夏秋時節(jié)就具體災(zāi)種而言，旱災(zāi)主要出現(xiàn)在冬春季，臺風(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

簡介：贛專太海碩士學(xué)位論西安地裂縫工程災(zāi)害機理模式及防治對策研究導(dǎo)師姓名職稱申請學(xué)位級別論文提交日期學(xué)位授予單位潘春娟門玉明教授答辯委員會主席學(xué)位論文評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

簡介：Y、90878分類號基122學(xué)號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6．2萬戶。但總體上看，畜禽養(yǎng)殖場污染防控仍然難盡人意。畜禽養(yǎng)殖場的規(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)對環(huán)境的污染有日益加重的趨勢。尤其是一些小規(guī)模的養(yǎng)殖場，更是成為防控工作中的難題。江蘇屬于沿海經(jīng)濟較發(fā)達省份，在長江三角洲經(jīng)濟圈中有舉足輕重的地位，在實現(xiàn)經(jīng)濟較快增長的同時，應(yīng)特別重視畜牧業(yè)對環(huán)境的污染問題，力求實現(xiàn)經(jīng)濟、社會、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)建和諧社會的要求，借鑒發(fā)達國家和地區(qū)的經(jīng)驗和做法，加強對畜禽污染防治的立法，加強對畜禽養(yǎng)殖場的規(guī)劃和管理，不斷增加投入，實行對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