11857.基于陰影情況下的植被覆蓋度模型研究

1、學(xué)位論文獨創(chuàng)性說明本人鄭重聲明：所呈交的學(xué)位論文是我個人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及其取得研究成果。盡我所知，除了文中加以標(biāo)注和致謝的地方外，論文中不包含其他人或集體已經(jīng)公開發(fā)表或撰寫過的研究成果，也不包含為獲得西安科技大學(xué)或其他教育機構(gòu)的學(xué)位或證書所使用過的材料。與我一同工作的同志對本研究所做的任何貢獻(xiàn)均已在論文中做了明確的說明并表示了謝意。學(xué)位論文作者簽名：日期：Subject:Thestudyofvegetationcoverag

2、emodelBasedonoftheshadowEngineeringField：SurveyingMappingEngineeringName:WuLijuan（Signature）Instruct:GuoLiyu（Signature）ZhongBo（Signature）ABSTRACTVegetationcoverageisdefinedasaratioofthevegetation(includingbranchstemleaf)

3、inthegroundstatisticswithintheregionareaoftheverticalprojectionareathetotalstatisticalarea.Thefractionofvegetationcoverage(FVC)isacomprehensivequantitativeindicatingtovegetationinmanystudiesusuallyregarditasthebasicparam

4、etersfacts.Theresearchachievementsofpeoplebefethestudyofthemethodhavemadeagreatcontributionftheextractionofvegetationcoverageinthefieldofdevelopment.Howeverpreviousstudiesjustfocusononeseveralaspectsdiscussed.Theyarelack

5、ofoverallconsiderationfvegetationcoverageignetheshadoweffectonvegetationcoverage(FVC).Inrecentyearsbecauseofveryfewstudiesinthisareasoconsideringtheshadowofvegetationcoveragemodelresearchiswthexpling.Thepurposeofthispape

6、ristodrawlessonsfromtheexistingresearchfconsideringtheshadowofvegetationcoveragethroughGeometricOpticalModelresearch.FromtheperspectiveofNDVIthepaperexplestherelationshipbetweenNDVIvegetationcoverageanalyzestheinfluenceo

7、fshadowonremotesensingimageofvegetationcoveragebuildsthemodelofvegetationcoverageinversionbyremotesensing.Softhepurposeofthestudiesaretoimprovetheaccuracyofvegetationcoverageinversion.Thestudyincludes:Firstlyintroducesth

8、ebasictheiesofvegetationcoverageinversionnmalizeddifferencevegetationindexthestudybackgroundofvegetationcoveragepresentstudystatusathomeabroad.ThenthroughthefieldmeasureddatatostudytheimpactoftheshadowtotheFVCdrawingsome