辽宁沿海经济带经济与环境协调发展度的时空演变

经济与环境协调发展度是衡量一个地区可持续发展能力的重要定量指标。本文构建了辽宁沿海经济带经济与环境协调发展度评价指标体系,运用协调发展度模型对研究区域2000～2009年的协调发展度进行计算及时空演变分析。研究发现:在时间演变方面,辽宁沿海经济带经济与环境区域综合协调度呈“V”型发展趋势,区域综合协调发展度呈稳步上升趋势,且各城市协调发展度所属类型层次较高,整体上达到中级协调发展类水平;在空间演变方面,辽宁沿海经济带六大城市大致可分为三大类型,且东部、南部城市较西部、北部城市发展更为协调,但各城市空间差异逐步缩小。本研究还分别从宏观政策调控、产业结构升级、区域布局优化及环保门槛提高等方面,分析了辽宁沿海经济带经济与环境协调发展度时空演变机理,指出辽宁沿海经济带在上述因素的驱动下,经济综合发展水平和环境综合承载能力均有所提高,但由于产业同构、海岸带生态脆弱等现象的存在,转变经济增长方式,推动区域经济与环境协调发展仍然是未来发展的主要任务。

The analysis of spatiotemporal evolution of economic and environmental coordination development degree in Liaoning coastal economic belt

The coordinated development between economy and environment is key to keep the sound development of regional integrated system.Economic and environmental coordination development degree is one of the important quantitative indicators for measuring capacity for sustainable development in a region.Based on drawing lessons from the existing research results and the research methods, this article constructs an evaluation index system of economic and environmental coordination development degree in Liaoning coastal economic belt consisting of six cities, and uses the model of coordination development degree for calculation and spatiotemporal evolution analysis of coordination development degree in the study area.Results are shown as follows.In the temporal evolution, the trend presents a "V"-shaped pattern in regional comprehensive coordination degree, with a steady rise in this belt.Development level of the six cities is higher, reaching the intermediate level.In the spatial evolution, the six cities can be divided into three types, and the eastern and southern cities are more harmonious than the western and northern ones, but the gap between their urban spaces is gradually narrowing.In addition, from these aspects of the macro-regulation, the upgrading of the industrial structure, regional layout optimization and the improvement of environmental protection threshold, the paper analyzes the reason for the spatiotemporal evolution of economic and environmental coordination development degree in Liaoning coastal economic belt, and pointed out that, driven by the above factors, economic comprehensive development levels and environmental strength have increased.And due to the industrial isomorphism and fragile coastal ecology, changing the mode of economic growth and promoting the harmonious development of regional economy and environment are still the main tasks in the future.