The Research On The Reclamation Suitability Evaluation Of Highway Temporary Land

This paper uses the theory of land evaluation,ecological economics theory,the theory of soil and water conservation,ecological succession theory and sustainable development theory,based on the study of domestic and foreign land reclamation research results,establish the temporary land reclamation suitability evaluation system,and to the north of Yanjiang highway(Chaohu to Ma'anshan)as an example,carried out on the highway temporary land reclamation suitability evaluation of highway,reclamation direction and suitability for the realization of the unity of the reclamation area of social benefit,economic benefit and ecological benefit and alleviate the contradiction of more people to provide reference for.First of all,according to the domestic and foreign research results,this paper introduces the widely used land reclamation engineering measures and technical measures.The reclamation engineering measures should be taken to different terrain environment,the land leveling project after land reclamation by certain biological technology,the gradual recovery of land productivity.Secondly,according to the objective conditions of the acquired data and research,to borrow pit and temporary engineering land(construction site,dump,construction site and construction road and other temporary land)as the suitability evaluation of land reclamation,irrigation and drainage conditions,the surface slope and digging depth were used as evaluation index the area,the irrigation and drainage conditions,the slope of the ground and soil depth as a temporary project evaluation index to the.The establishment of land suitability type reference table is divided into five types.Third,this paper introduces the status of natural resources,social economy and land use in the study area.Suitability evaluation system and the data acquisition of expressway has been established by reclamation,soil engineering field and obtained temporary land reclamation suitability for temporary highway grade and reclamation direction,and ultimately from the social,ecological and comprehensive economic analysis of highway temporary land reclamation suitability evaluation of benefit.Finally,this paper constructs the evaluation index system should be further perfected,and the evaluation of related evaluation indicators are selected only 4 types of GM,and the results using the index method and limit condition method integrated approach the existence of subjective factors,therefore,should according to the project the environment and the specific situation,future research,expand the sample number of research,and expand the scale and the number of temporary land types,to further reduce the influence of subjective factors on the weights in data processing,enhance the scientific and objectivity of evaluation results.The results show that: the results of this study can accurately reflect the temporary land reclamation results,the results are consistent with the expected social,ecological and economic benefits,social stability and ecological health,enhance the economic efficiency significantly.