干旱区生态环境知识资源中心(Arid): 基于生态承载力的黄土高原地区城镇体系空间结构演化以庆阳市为例

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	基于生态承载力的黄土高原地区城镇体系空间结构演化以庆阳市为例
其他题名	Spatial Structure Evolution of Urban System in the Loess Plateau Based on Ecological Carrying CapacityA Case Study in Qingyang City
	刘海龙; 石培基; 张学斌; 张惠; 魏伟
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2013
卷号	30 期号:4 页码:749-756
中文摘要	庆阳市位于黄土高原中部丘陵沟壑区,气候干旱,生态脆弱。运用生态承载力、城镇体系相关理论和方法,分析研究区城镇体系空间结构演化特点及趋势。采用生态弹性度、资源承载力和承载压力度、对生态承载力的演化进行综合评价,并对生态承载力与城镇空间结构的关系进行探讨。在此基础上,对研究区城镇体系空间结构进行调整优化,为脆弱生态条件下的城镇发展提供依据。
英文摘要	Qingyang City is located in a hilly-gully region in the central Loess Plateau,it is arid,and the ecological environment is fragile. In this paper,the spatial structure evolution of urban system in the study area was analyzed based on the ecological carrying capacity. The results showed that there was a traffic directivity in the study area during the period of 1985 -2010,and the town development was restricted by the limited traffic conditions. Urban distribution was related to the distribution of water resources,and it was different from different counties. Double center pattern was gradually formed under the optimization of urban system. The ecological elastic degree,carrying capacity of resources and load pressure strength were used in the evaluation. The results showed that the ecological elastic degree and carrying capacity of resources in the study area were holistically in an ascendant trend during the period of 1985 -2010. Spatial structure of the regional urban system and the ecological carrying capacity interacted,and the relationship between the ecological carrying capacity and the spatial structure of urban system was discussed. Some measures were proposed for optimizing the spatial structure of urban system in the study area based on the ecological carrying capacity in such fragile ecological environment.
中文关键词	生态承载力 ; 城镇体系 ; 空间结构 ; 庆阳市 ; 黄土高原
英文关键词	ecological carrying capacity urban system spatial structure Qingyang city Loess Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4886775
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229588
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘海龙,石培基,张学斌,等. 基于生态承载力的黄土高原地区城镇体系空间结构演化以庆阳市为例[J]. 西北师范大学,2013,30(4):749-756.
APA	刘海龙,石培基,张学斌,张惠,&魏伟.(2013).基于生态承载力的黄土高原地区城镇体系空间结构演化以庆阳市为例.干旱区研究,30(4),749-756.
MLA	刘海龙,et al."基于生态承载力的黄土高原地区城镇体系空间结构演化以庆阳市为例".干旱区研究 30.4(2013):749-756.