干旱区绿洲城市土地利用与城市发展耦合协调度及时空分异——以新疆为例

来源 :中国土地科学编辑部,南京农业大学 | 被引量 : 0次 | 上传用户:kitty1973
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干旱区绿洲城市是土地利用和城市发展矛盾主要凸显区,选取新疆18 个绿洲城市,构建城市土地利用指标体系和城市发展指标体系,采用因子分析法计算土地利用子系统综合分值和城市发展子系统综合分值.通过协调度、耦合度和耦合协调度三个指数衡量城市系统的同步性、有序性和和谐性和时空分异.研究发现:2003-2010 年时间序列,协调度、耦合度、耦合协调度三项指数总体呈现下降态势,其中南疆、东疆城市的下降幅度大于北疆城市下降幅度.新疆干旱区18 个绿洲城市土地利用与城市发展协调度总体呈现递减态势,城市发展对土地利用有较强的依赖性,并逐渐成为城市发展的瓶颈,城市处于外延扩张阶段;耦合度总体呈现极强的递减态势,城市系统由震荡式耦合状态演变为无序耦合状态,由序列激发状态的颉抗阶段转化为无序、无效、低度相关状态的无序阶段;耦合协调度呈现城市子系统间的非同步、无序性、非平衡、混乱发展状态.
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