基于生态位理论的河西走廊县域城市竞合关系研究  

Ecological niche-based competition and cooperation relationships among county-level cities in Hexi Corridor

作　　者：聂晓英[1] 石培基[1] 吕蕊[1] 张学斌[1] 梁变变 魏伟[1] NIE Xiaoying;SHI Peiji;LU Rui;ZHANG Xuebin;LIANG Bianbian;WEI Wei(College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, Chin)

机构地区：[1]西北师范大学地理与环境科学学院,兰州730070

出　　处：《生态学报》2018年第3期841-851,共11页Acta Ecologica Sinica

基　　金：国家自然科学基金项目(41661035;41271133;41261104)

摘　　要：根据生态位理论,用城市综合发展水平和生态位宽度来反映各城市对所在群落中的资源占有和利用程度,通过聚类分析和生态系统结构的划分对河西走廊20个县域城市的竞合关系进行了评价。结论表明:2001—2013年间,河西走廊各城市综合发展水平均有不同程度的提高,城市生态位也表现出不同程度的升降,综合发展水平值与生态位宽度呈高度正相关关系,说明各城市对资源的占有和利用程度联系密切,相辅相成。嘉峪关市和金川区生态位始终位于河西走廊20个县域城市前列,为第Ⅰ类城市,凉州区、肃州区和甘州区为第Ⅱ类城市,阿克塞县、玉门市、敦煌市和肃北县为第Ⅲ类城市,其余11个城市为第Ⅳ类。在此基础上,结合生态位错位、扩充、协同发展等理论,根据城市生态系统结构提出了相对应的基本竞合发展策略。Domestic and international scholars have paid considerable attention to research on intercity co-opetition relationships. Based on the systematic examination and analysis of previous research results, the article, starting with the theory of the ecological niche, regards the modern city as special life system with ecosophy from the perspective of phytocoenology. Cities in certain regions may have various relationships. Co-opetition between cities usually plays an essential role in whether the cities can achieve continuous development together in the same city group. The percentage of a particular city＇s resource occupation in its group is reflected by its comprehensive development level, the utilisation of resources is represented by the niche breadth, and the co-opetition of 20 cities in county areas of the Hexi Corridor is clarified by cluster analysis and the structural division of the eco-system. Finally, a realistic strategy for co-opetition is put forward by virtue of the ecological niche, aiming to provide theoretical suggestions for coordinated and continuous development in city groups of the Hexi Corridor. It is concluded that all the cities in the region have made mixed progress in terms of their comprehensive development levels, with their ecological niches experiencing mixed ups and downs. The positive correlation observed between a city＇s comprehensive development level and its ecological niche width shows that the occupation and utilisation of resources are two supplementary coefficients. Among the 20 county-level cities in the region, Jiayuguan and Jin Chuan District have always been categorised as Tier I, as they always top the list of cities with highest ecological niche; Liang Zhou District, Su Zhou District and Gan Zhou District are Tier Ⅱ cities; Akesai, Yumen, Dun Huang and Su Bei are Tier Ⅲ; and the remaining 11 cities are Tier IV. Based on the analysis of the eco-system structure in the cities of the Hexi Corridor, together with theories such as niche dislocation, expansion, coordin

关 键 词：生态位理论 城市综合发展水平 生态位宽度 竞合策略 

分 类 号：TU984.115[建筑科学—城市规划与设计] X171[环境科学与工程—环境科学]