长江流域资源与环境 >> 2010, Vol. 19 >> Issue (8): 873-.

• 自然资源 • 上一篇    下一篇

苏锡常地区城市发展对降雨的影响

丁瑾佳| 许有鹏| 潘光波   

  1. (南京大学地理与海洋科学学院| 江苏 南京 210093)
  • 出版日期:2010-08-20

EFFECT OF URBANIZATION ON REGIONAL PRECIPITATION IN SUZHOUWUXICHANGZHOU AREA

DING Jinjia, XU Youpeng, PAN Guangbo   

  1. (School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210008, China)〖JZ)〗〖HT〗
     
  • Online:2010-08-20

摘要:

苏锡常地区位于太湖流域的腹部地区,经济发达,是当今世界上较大的城市群之一,快速的城市化发展使该区自然环境产生了较大变化,并影响到当地水循环过程以及降水过程的变化。以该地区的苏州、无锡、常州3个典型城市为例,基于长系列降雨资料,在相同的气象背景条件下,通过城区与郊区雨量站同期资料的对比分析,采用线性回归、R/S分析、MK检验等方法,重点探讨城市化对降雨过程的影响。研究结果表明:在城市化缓慢期,城郊降雨差别不大。而随着城市化进程的加剧,城市化发展较快的苏州、无锡城市“雨岛效应”较为明显,而城市化发展相对缓慢的常州城市“雨岛效应”则不明显,并且在今后一段时间内,这种情况可能会持续存在。该研究为长江下游城市群的城市化发展对降雨影响的深入研究打下了基础。

Abstract:

SuzhouWuxiChangzhou,one of the most economically developed areas in China,which lies in Taihu Basin, is also one of the largest urban agglomerations in the world.Rapid urbanization has caused great changes in the regional natural environment and processes of precipitation.Taking Suzhou,Wuxi,Changzhou as typical cities,based on the long term 〖JP2〗precipitation,with the premise of the same meteorological〖JP〗 background,this paper probed into the effect of urbanization on local precipitation by comparing the precipitation in urban and suburban gauges using linear regression,MannKendall trend analysis,R/S method.The results showed that in the phase of slow urbanization development,the difference of precipitation in urban areas and suburban areas was little;in the phase of quick urbanization development,like Suzhou and Wuxi,urban rain island effect was evident,while it was not evident in Changzhou with slow development.And this situation may not change in the near future.This study also lays the foundation for the urban agglomerations downstream in the Yangtze River delta.

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