生态环境质量的变化和经济发展是一个动态演进的过程,二者相互促进相互制约,研究二者在相互作用的过程中产生的协调效应对城镇的发展意义重大。在理清二者协调发展效应的基础上,通过构建指标体系、计算模型及判别标准对榆林市12个(区)县近十几年来两者之间的协调发展关系从时空角度进行评析,结果表明:1生态环境和经济协调发展的年份占多数,不协调的年份较少。2榆林市生态环境和经济之间的协调发展水平逐年提高,但目前还处在初级和中级协调等级。3榆林市的生态环境和经济之间的协调发展类型在空间分布和空间聚类上都存在着非常明显的空间分异,因此要跟据不同地域的制约因素来分类制定协调发展政策和措施。

The growth of eco-environment quality and economic development is a dynamic evolution process, which are dependent and restraint each other. Researching their coordinated development effect is important for the development of countries. Yulin as an arid area of the city, their poor ecological environment based on high ecological fragility, with the development of energy resources, its economic growth and the rapid development of urban construction, the impact of economic growth on the environment is also very complicated. This paper selects the Yulin City as the typical example, the 12 (district) County as the research unite, to the time period for the years 1997-2012. On the basis of defining the coordinated development effect of eco-environment and economy, the eco-environment and economy about 12 counties in Yulin City are measured by the evaluation index system. The result shows that:Firstly, Coordination of eco-environment and economic development the majority of the year, uncoordinated year less. Secondly, the coordinated developing relations between eco-environment and economy in Yulin are gradually turning to the high level,but the coordination is still in primary and secondary level. Thirdly, there are apparent spatial heterogeneities of northern and middle and southwestern and southeastern yulin in the coordinated developing types between eco-environment and economy, therefore the varied development measures and policies of eco-environment and economy are necessary to guide the building according to local conditions.