An Application Of The Variable Weight Method Based On Ecological Niche-fitness To Reclamation Suitability Evaluation For Land Temporarily Used For High-speed Railway Construction

In order to make the high speed railway in the large engineering landreclamation can adjust measures to local conditions, create a healthy andsustainable traffic environment, this article has carried on the high-speedrailway in the large land reclamation suitability evaluation of projects.Paper established three reclamation modes, and on this basis, combinedwith frequency method, expert consultation method and principal componentanalysis (pca) of different reclamation mode to build index system. In addition,the ecological niche suitability variable weight method is applied to landreclamation suitability evaluation. Papers in anhui section of beijing-shanghaihigh-speed railway for example, and specifically investigated soil field anddifferent indicators of actual data. Through the analysis, the main results are:(1) the original use type for paddy field soil field basic cannot to reclamationof arable land, most is suitable reclamation of forest land, garden land orgrassland;(2) of the paddy field and dry land reclamation suitability valuesgenerally higher than that of wasteland and barren hills of reclamationsuitability values;(3) the original land use type, terrain slope, degree ofeffective soil layer thickness, road access index factors in the process ofvariable weight correction, and have different degrees of growth, highlightsthe factors restricted.