The Research Of Landscape Corridor About Shanshan Oasis In Turpan Basin

The corridor is one of the landscape elements, one of the core issue of thelandscape study. Morphology and function of this particular land use types by ofShanshan Oasis corridor landscape analysis, research and planning, more in-depthunderstanding of corridor to understand the general rules of distribution andconstruction, and protection, construction, and transform the corridor the process tofollow this law to play its role as one of the arid Region of Northwest landscape types.This study selected a resolution of2.5meters in2010, SPOT-5satellite aerialphotograph as a source of research information. Using ERDAS8.6satellite imagepreprocessing, to use ArcGIS9.2images for visual interpretation of vectorization,select Typical transects to conduct a field verification survey. Topology in ArcGIS9.2,ERDAS8.6software support to interpret the data, property guide, cut, and projectionconversion of vector data in the study area corridor, in ArcGIS9.2in their processingand analysis the following conclusions:The Yamakita Shannan distribution of a significant proportion of. Yamakita sixtownships (towns), the total length of the corridor is1476.90km, accounting for56.52%; and Shannan four township (town), the total length of the corridor is1136.35km, accounting for43.48%.2corridor points Township unevenly distributed. Tu Yugou Township, the total lengthof the corridor, the provision of exhibition Township, followed by the total length of389.09km,471.58km, followed by seven grams Taiwan town, with a total length of381.45km, the township (town) of, and accounted for47.53%of the total length of theoasis corridor, the corridor construction of these township (town) is relativelycomplete. The rest of the several towns, the construction is relatively imperfect.3corridor integral geometry is relatively simple, there are mainly two. Linear corridorof farmland protection corridor, the length of the total for the2613.25km; stripcorridor by roads and protection of both sides of the corridor, canal and river corridorand desert southern edge of the protective corridor, with a total length of1514.14km.4. The composition of the corridor but the indexes are not high. Farmlandprotection corridor long2613.25km road corridor long1074.35km long321.31km ofthe canal corridor, the river corridor,118.48km.Width, farmland protection corridor is generally in the8-12m, the beginning of the most wide-desert southern edge of the farmland protection corridor can reach200m,usually between100-150m; along the highway corridor width of approximately55-120m provincial highways on both sides of the corridor width of35-80m, theroads in general on both sides of the corridor is generally planted as a row or tworows of trees, and thus the width of between16-24m. The river corridor between15-133m, the width of the canal system is relatively narrow, generally12m or so.Various types of corridor construction density varies farmland protection corridordensity of0.50, the density of the road corridor0.25, the canal corridor a density of0.11, the river corridor a density of0.04. In addition to the farmland protectioncorridor, in all construction.Road corridor and the construction of farmland protection corridor rate of45.18%and50.00%respectively, the construction rate is not high, it is difficult to play a protectiverole of the corridor.Corridor network bus point was0.87, the whole study area, various corridor networkstructure is relatively simple, low-average number of connections of each node, theefficiency of material and energy flow and species migration between nodes. Linepoint of the roads network was0.93, the road with the road accompanied byprotection and farmland protection corridor network lines point rate is relatively nothigh,0.88. The river corridor and canal corridor line point distribution for the0.32and0.47. All kinds of corridors ring through0.32, the basic no loop exists. Roadcorridors, river corridor and canal corridor loop-through value is low,0.09,0.01and0.01, respectively, farmland protection corridor ring degree value of0.37, relatively,than the former to be slightly better.