基于PSR模型的关中古代陵寝地区土地生态评价研究

Study on Land Ecological Evaluation of Ancient Mausoleum Area in Guanzhong Based on PSR Model

关中古代陵寝地区是我国历史文化遗产保护的重要区域,其发展面临严峻的生态环境问题。以关中古代陵寝分布地区为研究区域,利用PSR模型,构建生态安全评价体系,采用层次分析法计算权重,获得生态安全指数,对关中古代陵寝地区土地生态安全进行定量评价。结果表明:该地区生态环境处于临界安全状态,其中秦都区处于较安全状态,乾县、兴平市、渭城区等处于临界安全状态,礼泉县处于不安全状态,而泾阳县呈现极端不安全状态,为该区域的文化、经济和生态协调发展提供决策参考。

The area of ancient tombs in Guanzhong is an important area for the protection of China’s historical and cultural heritage,and its development faces severe ecological problems.In order to prevent the deterioration of ecological security environment and the unreasonable use of land resources in historical and cultural areas,this paper constructs an ecological security evaluation system based on the PSR model,calculates the weight through the analytic hierarchy approach,and combines the standardized processing of original data and the calculation of the index ecological security index to calculate the current situation of land ecological environment quality and ecological security in the ancient mausoleum area of Guanzhong for a reasonable judgment and analysis of the whole situation.The results show that the ecological environment of the region is in a critical safety state,with Qindu District in a relatively safe state,Qian County,Xingping City and Weicheng District in a critical safety state,Liquan County in an unsafe state,and Jingyang County in an extremely unsafe state,which provides a decision-making reference for the coordinated development of culture,economy and ecology in the region.