基于信息熵的西安市城镇土地利用结构合理性分析

Analysis on rationality of urban land use structure in Xian based on information entropy

依据城镇地籍调查成果,基于信息熵理论,介绍了西安市13个区县土地利用结构总体情况和信息熵分布情况,分析研究了2015年、2016年的西安市城镇土地利用信息熵变化及土地利用结构合理性。结果表示,2015～2016年,西安市城镇土地利用结构信息熵呈降低趋势;老城区和周边区县的土地利用结构空间分异特征明显,土地利用结构正在发生优化调整,逐渐从不合理向合理转变。研究成果对预测和规划一定时期内西安市各区县的土地资源开发利用保护、土地利用结构调整具有一定的指导意义。

Based on the results of urban cadastral survey and information entropy theory,the paper introduces the overall land use structure and information entropy distribution in 13 districts and counties of Xian,analyzes and studies the information entropy changes and rationality of land use structure in Xian in 2015 and 2016.The results show that from 2015 to 2016,the entropy of urban land use structure in Xi’an was decreasing.The spatial differentiation of land use structurewas obvious in the old city and surrounding districts and counties,and the land use structurewas undergoing optimization and adjustment,gradually changing from unreasonable to reasonable.It has certain guiding significance to predict and plan the land resources development and utilization protection and the adjustment of land use structure in each district and county of Xi'an.