关中地区城市生态位研究  

A study on city niche in Guanzhong Region

作　　者：马超群[1,2] 曹明明[1] 何艳芬[1] 

机构地区：[1]西北大学城市与环境学院,陕西西安710069 [2]长安大学地球科学与资源学院,陕西西安710054

出　　处：《西北大学学报（自然科学版）》2010年第5期876-879,共4页Journal of Northwest University（Natural Science Edition）

基　　金：国家重大基础研究前期专项基金资助项目(2003CCC01500)

摘　　要：目的探索区域内城市间的竞争程度及变化情况。方法运用生态学中生态位及生态位重叠模型计算城市生态位宽度和重叠度。结果以关中地区为研究范围,根据2004年39个工业行业产值数据,计算出关中地区4城市生态位宽度和生态位重叠度。结论 (1)关中地区4个城市生态位宽度形成3个类别,分别为西安、宝鸡、咸阳、铜川,其中,西安市生态位宽度最大,所占据的资源空间最多,其余两种类型生态位宽度逐渐减小,所占据的资源空间逐渐减少;(2)关中地区4个城市生态竞争缓和,竞争中形成西安市处于优势地位,宝鸡、咸阳次之,铜川位居最后;(3)西安和咸阳、西安和宝鸡、咸阳和铜川城市生态位重叠值较高,互为可能的竞争对手。Aim To reflect the competition among the cities and the change of it.Methods Using the niche width model and the niche overlap model.Results Taking Guanzhong Region as an example,niche width and niche overlap of four cities are computed according to 39 industries′ data.Conclusion The research shows that（1） Niche widths of the four cities in Guanzhong Region can be classified into three types,which are Xi′ an type,Baoji-Xianyang type,and Tongchuan type,and among which,the niche width of Xi′ an city is the largest,which occupies the biggest allocation of resource space,and the niche widths of the other two types are smaller and occupy the smaller allocation of resource space;（2）the competition among the four cities in Guanzhong Region is not severe,and Xi′ an city is on the advantage of the competition,then is Baoji and Xianyang,the last is Tongchuan;（3） Niche overlaps between Xi′ an and Xianyang,Xi′ an and Baoji,and Xianyang and Tongchuan are high,and can be potential competitors between each other.

关 键 词：城市生态位 生态位重叠 关中 

分 类 号：F291[经济管理—国民经济]