秦嶺山地植被水源涵養(yǎng)功能空間分布格局及生態(tài)保育策略.pdf

1、Y7蜘hz。o，UU口分類(lèi)號(hào)密、級(jí)單位代碼學(xué)號(hào)!!!!!!!!西北大學(xué)碩士學(xué)位論文題目盔監(jiān)當(dāng)些絲絲壟遣疊差盟絲窒圃金查整魚(yú)盈生查堡直塞喳SpatialDistributionPatternandStrategyforWater——ConservationFunctionofVegetationinQinlingMountains指導(dǎo)教師型鏖專(zhuān)業(yè)技術(shù)職務(wù)割筮撞學(xué)科(專(zhuān)業(yè))自叢墊堡答辯日期!!Q!生旦學(xué)位授予日期二零零五年六月汞經(jīng)作看。。導(dǎo)

2、婚箭急勿金支公布AbstractQinlingMountainsisanimportantforestareainChina，andasignificantwaterresourceconservingareainChinesecentralpartThewoodlandareaaccountsfor752％，andithasanimportantfunctiononthesoilandwaterresourceconservation

3、Theprotectionandrestorationofthedegeneratingvegetationnotonlyaffectstheenvironmentalimprovementofecosystemandeconomicdevelopmentofsocietyinthearea，butalsothesafetyofaquaticenvironment，waterquaHtyandflowinGuanzhongandthem

4、iddlelineofsouth—to—northwatertransferprojectinChinaThewaterconservationfunctionofvegetationecosystemandspatialdistributionpatternwereanalyzed，basedonfunctionandspatialdistributionpatternthatishotspotoflandscapeecologyan

5、dforesthydrology，choosingvegetation—soilslopcomplexinQinlingMountainsareaofShaanxiasresearchobject，usingGISsoftwaresuchasArcview32／ArcGis812，thinkingoverthelevelsofthemacro一，meso，andsmallscalesAtthesametime，astrategyfore

6、cosystemconservationwasproposedTheconclusionshowed：(1)Asawhole，theenvironmentofthisareajswellMeanwhile，thenaturalforesthasbeendestructedandchangedbyfarm，grass，andshrublittlebylittleIntheresult，thewaterretentionofvegetati

7、onoftheunitedareaintheQinlingMountainssnorthslopishigherthanthesouthslop，andthewaterconservationfunctionofecosystemhasbeenseverelyaffectedbyintensemansactivity(2)Thewaterresourceconservingfunctionofvegetationisvitallyrel

8、atedwiththetypesofsoil，vegetationandslop，Thevariation—locationeffectindexshowedthatthebiggestperformancewillbeobtainedunderthelimitedareaexpanding，throughextendingtheforestareaandmakinguseoftheinfluenceofthewoodlandspace

9、structureontheecosystemeffectIntheresult，thevariation—locationeffectofvegetationintheQinlingMountains’Snorthslopislowerthanthesouthslop(3)Thestrategyforecosystemconservationbasedonfunctionandspatialpatternwasproposed，tha