基于量变质变论的城市水系结构变异分析

Analysis of Urban Water System Structural Variation Based on Quantitative and Qualitative Theory

为了识别水系结构在城市化影响下发生的变异,采用质量变异距方法分析了郑州市水系结构的变异程度,将受城市化影响最小的1985年的水系结构作为初始状态,验证了该方法的可行性与适用性。结果表明:郑州市水系结构从1985年到2005年、2010年和2013年均发生中度变异,介于井字型与川字型结构过渡区,且城市化依然影响水系结构向劣化发展(2005年的状态好于2010年、2013年的),变异程度为中度,呈现出主干化、顺直化变异,整体性割裂严重,连通性和完整性遭到破坏。

In order to identify river structure variation in the effects of urbanization, it used quality variation method to analyze the degree ofcity water system structural variation by taking Zhengzhou City as an example to prove the feasibility and applicability of this method. Theresults show that Zhengzhou City river structure occurs moderate variation from 1985 to 2005, 2010 and 2013, between Well font and Riverfont structural transition zone and urbanization still affects river structure to a deterioration development （the status of 2005 is better than thatof 2010 and 2013） with appearance of trunk and straight variation, entirety fragmented severely, and connectivity and integrity compromised.