Research On The Typical Altitudinal Belts Of Vegetation Spatial Pattern Recognition And The Climate And Environment Under The Framework Of Digital Mountain

The mountain has concentrated environmental gradients, a high degree ofheterogeneity of the ecological environment and the relatively low intensity of humaninterference, and it is the gathering place of the landscape and biologicaldiversity.Qinghai-Tibet Plateau special geographical conditions gave birth to the mosttypical mountain altitudinal belts--Qinghai-Tibet Plateau mountain vertical band, thenorthern fringe of the vegetation of the Mount Everest region vertical band isconsidered to be the world’s most complex and complete vertical band. However, theresearch literature in this region Kuala groove vertical bandhas not seen.Therefore,this article is to study the vertical band of the ditch area of Kuala,Expecting to explainthe distribution of the vertical band of vegetationaccording to quantitative indicatorsof climate and environment,which is of great significance for the protection ofregional and Everest.This paper study the vertical band of Kuala ditch mainly from the following fouraspects:(1) Extract the land line of the study area based on the plane curvature andslope-shaped combination method,relative accurately get the ridge line and the valleyline,then to determine the study area boundaries. The results proved to be relativeaccuratethrough comparative analysis with field data gathering, remote sensingimages, digital elevation model and so on The results proved much more accurate,which shows that it gets the preliminary results.(2) At present, the problem of filling the data empty of the ASTER GDEM needs fast, efficient and scientific approach. In this paper, propose a method of usingSRTM DEM which is local correction for the inverse distance weighted averagemethod-by-pixel interpolation of the ASTER GDEM based on the AO model inArcGIS10when SRTM for the underlying data source to produce large area Demitsfor interpolation processing to fill small voids GTOPO30terrain data with lowerresolution data fusion process to fill the remainder of the larger hole, through theactual research to show that the method is a practical way to obtain completetopographic data.(3) Divide theAltitudinal belts of vegetation according to the practical surveysampling data, remote sensing image data and other fundamental geographicinformation material. With the cross-section of the trend direction of the Kuala ditchas the abscissa and the altitude as the y-coordinate, Research shows that:at the westside slope of Kuala ditch,the place where Elevation is1800-2700meters is hillyneedle broadly mixed forests,2700-3500Subalpine coniferous forest,3500-4250Highmountain evergreen shrubs belt,4250-4750Alpine meadow belt,4750-5000Alpinesparse vegetation.(4)The research explains the Kuala ditch vegetation vertical band via the maincontent of The mountain effect, climatic factors, topographic factors, soil factors andthe relationship of the vertical band of vegetation. Gives a quantitative interpretationmainly from the impact scale about the mountain effect,givesa quantitativeinterpretation mainly from the precipitation, temperature, solar radiation and so onabout climatic factors,and the statistical analysis shows that:Climate factor have amajor influence on altitudinal belts of vegetation in Kuala ditch,and different climatefactor value corresponding specific altitudinal belts of vegetation; gives a quantitativeinterpretation mainly from the mountain height, slope to effect, slope influence, slopea influence and so on about terrain factors, gives a quantitative interpretation mainlyfrom the composition of the soil about soil factors.