Research On Structure Optimization Of Land Use Upon The Influence Of An Earthquake Induced Secondary Disasters

Land is an important material basis of human existence. It is a preciousgift of nature to human beings. Sustainable development of the social economy andhuman reproduction is inseparable from land resources.In recent years China’searthquake occurrence frequency. A large number of secondary geological disastersinduced by the earthquake will be in the active phase. Secondary geological disastersoccur with strong concealment and hysteresis. For the safety of residents, city buildingand socio-economic development laid a serious security risk.Therefore, for theearthquake-affected areas of secondary geological disasters optimal allocation of landuse will be directly related to the safety of human life and production. It is veryimportant to optimize the use of land-based seismic under the influence of secondarygeological disasters.Research of risk zoning by the secondary disaster of earthquakeaffected areas and according to the result of division design more targeted land usestructure optimization model for post disaster land use, can provide more scientific andrational basis.In this paper, Sichuan Province Mingshan district as study area, based on theinduction and summing up the results of previous studies, experience of thecollected.Investigation of new types, characteristics and distribution of secondarygeological disaster, according to the original geological disasters, application model,operation area of secondary geological disasters in the latest predisposing risk zoningachievements. While the land use structure was analyzed before and after theearthquake situation, summed up the characteristics of land use, combined with theresults of Risk zoning and land-use structure secondary geological disasters. Build moretargeted land-use structure optimization model based on the results, obtained using the ant colony optimization algorithm based on the land use structure under the influence ofsecondary geological disasters results.Finally, according to the data of land use structure optimization of Mingshan area,combined with land use situation, reconstruction and future development needs, putforward a more targeted, scientific land use structure optimization, Adjustment forMingshan land use planning and post-disaster reconstruction layout, taking into accountecological and social construction, to avoid secondary geological disasters providerecommendations to promote the rational use of land in the region secure sustainabledevelopment.