基于GIS和层次分析法的采石废弃地景观评价研究——以新乡市凤凰山森林公园为例

Abandoned Quarry Landscape Evaluation Bases on GIS and AHP Tool——Taking FengHuangShan Forest Park in XinXiang City as an Example

通过对采石废弃地进行景观评价,可以为城市采石废弃地改造策略的制定提供依据。本文借助GIS工具和层次分析法,从生态性、安全性、观赏性和功能性四个方面搭建采石废弃地的景观评价模型,并以河南新乡市凤凰山森林公园修建性规划为例,对森林公园范围内的采石废弃地进行景观评价。评价结果经过GIS的自然断点分级法分为:好、较好、一般、较差、差五个等级。结果显示:森林公园中评价等级达到较好及以上的采石废弃地面积约41.2万m^2,集中在凤凰山支脉的青龙山东南部和驼腰山中部等区域。这些区域空间形态完整,建设安全风险小,在规划方案中被设置重要景区,其分布和形态也对规划方案的结构产生影响。

Accessing landscape evaluation to the abandoned quarry,can set the foundation for abandoned quarry’s upgrading.This research utilizes the GIS and AHP tool to construct the abandoned quarry’s landscape evaluation model from the ecology,security,appreciation and functional aspects while takes the constructional planning project of FengHaungShan mountain forest park as the example to evaluate the landscape of this forest park’s abandoned quarry.The result is classed as five layers by Natural break point classification as:good,better,general,inferior and worst.The result shows that:the“good”and“better”area is accounted for about 412 thousands square metres and distributing mainly in the south-east area of Qinglong mountain and central area of Tuoyao mountain which are hillsides of FengHuangShan mountain.These places will be built as scenic area due to its complete space form and low construction security risk.Its layout and site form also can affect to the planning scheme’s structure.