黃土高原退耕還林區(qū)土地利用-覆蓋動(dòng)態(tài)監(jiān)測(cè)——以吳起縣為例.pdf

1、Y11325lZ(⑧西北農(nóng)抹針捉大學(xué)2007屆攻讀碩士學(xué)位研究生學(xué)住(畢業(yè))論文黃土高原退耕還林區(qū)土地利用／覆蓋動(dòng)態(tài)監(jiān)測(cè)——烈吳起縣為倒學(xué)科奇業(yè)—堂墮噩皇窒地籃蠱拉盤(pán)研究力向—量壁皇量堡立：盎應(yīng)壓_研究生監(jiān)且蠱————指導(dǎo)教師—鹽上。赴盟睦泣一完成時(shí)間—呈9盟塵￡一ASTUDYONDYNAMICMONITORINGLUCCINTHEI疆GIONOFRETURNINGCUIJI、廠ATEDLANDTORORESTINLOESSPLATEA

2、U—1AKINGWUQICOUNTYASANEXAMPLEABSTRACTAstheprimarymegnsofremotesensingtechnologyBasedontheTMimagesofthestudyareain1986and2003，Usingthemethodsofacombinationofsupervisedandunsupervised，WeacquiredtWOlandusellandcoverclassifi

3、cationthematicmapsof1986and2003andtheLUCCmapsfrom1986tO2003inWuQiCountythenanalyzedtWOthematicmapsandLUCClawin17years，thedrivi堍forceonland—usechangesandthebenefitsbroughtbyreturningfarmlandtoforest(grass)inWuQiCountysumm

4、eduptheexperienceandpracticesofreturningfarmlandtoforest(grass)ofWuQiCountyraisedsomesuggestions0nsustainabledevelopmentofreturningfarmlandtOforest(grass)Theresultsshow：(1)Aseriesofimageprocessingincludingtensileenhanced

5、andfalsecolorfusionimprovedimagerecognitionenvironment，enhancedthepossibilityofrecognitionofofmessage，increasedthereliabilityofhumancomputerinteractioninterpretation，accuracyrateofinterpretationreached85％Thestudyusedseve

6、nbandremotesensingimagesconsistingofsixoriginalTMhandandNDVIThemethodofcombinationofsupervisedandunsupervisedisapplicabletotheLoessPlateauareaNotonlyCanitgreatlyincreasethespeedofinterpretation，butalsoensuretheaccuracyof

7、theclassification(2)ThemostimportantlandusetypeinWuQiCountyin1986farmlandandgrassland，whichrespectivelyaccountedfor29，90％and4495％inthewholecounty’Slandareaof；Butin2003iswoodlandandgrasslandaccountingfor3676％and4530％respe

8、ctivelyThroughanalysisonLUCCandthetransfermatrixwefoundthattherea塢17variousgreatchangeshappenedonlandUsetypesandspacelandscapepatternsbetween17yearsnemaindemonstrationsaresharpdecreaseofforestandmarked；ncreaseoffarmland，