《Table 2 Suitability evaluation of land use》

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《Land Use Analysis of Yichun-Wanzai Expressway》

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Through elevation analysis，slope analysis and aspect analysis within the study area，comprehensively considering land use planning and urban overall plan，suitability evaluation of land use is conducted to provide basis for the choice of construction land along the expressway.The land used in the planning area is divided into five categories，the land that has been constructed，the land that is suitable for construction，the land that can be constructed，the land that is not suitable for construction and the land that is prohibited from construction（Table 2）.Among them，the land that has been constructed is the land where the central city，townships，and villages are located within the planned scope.The land that is suitable for construction has a slope less than 10%，flat terrain and small relative height difference.Its natural environmental conditions such as engineering geology are superior.It can adapt to the construction needs of various facilities.It generally does not need or only requires a little engineering effort for construction.The land that can be constructed refers to the land with slope of 10%-25%，general natural environmental conditions，and certain height difference.It requires certain engineering measures and can be used for construction after a slight improvement in conditions.This category of land has some restrictions on the distribution of facilities or engineering projects.The land that is not suitable for construction refers to the land with slope of 25%-50%，large height difference，poor natural environmental conditions，and relatively complicated terrain（general farmland in the land use planning or the land with terrain lower than the flood line）.It requires specific engineering measures，and can be built after improving the conditions.This category of land has greater restrictions on the distribution of facilities or engineering projects.The land that is prohibited from construction has a slope of more than 50%，and a very complicated terrain.It also refers to the basic farmland，ecological forest land，waters，etc.in the land use planning.It is not used as construction land.