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Design and Construction of an Urban Runoff Research Facility
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Temporal and spatial variations in the relationship between urbanization and water quality.

Lijun Ren1, Erqian Cui, Haoyu Sun

  • 1School of Environmental Science and Engineering, Shandong University, 27# Shanda South Road, Jinan, 250100, People's Republic of China, 1014589485@qq.com.

Environmental Science and Pollution Research International
|July 1, 2014
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Summary

Rapid urbanization significantly impacts river water quality. Beyond 40% urbanization, pollution levels increase, with land and demographic factors showing the greatest influence on urban river degradation.

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Area of Science:

  • Environmental Science
  • Urban Planning
  • Water Resource Management

Background:

  • Rapid economic development in China drives extensive urbanization.
  • Urbanization is linked to significant environmental issues, particularly water quality deterioration.
  • Understanding the urbanization-water quality nexus is crucial for sustainable development.

Purpose of the Study:

  • To investigate the impact of urbanization on river water quality.
  • To establish a framework for assessing the relationship between urbanization and water quality.
  • To analyze the urbanization-water quality dynamics in Jinan from 2001-2010.

Main Methods:

  • Factor component analysis to model urbanization's impact.
  • Comprehensive index system assessing demographic, economic, land, and social urbanization.
  • Synthetic pollution index method for evaluating Xiaoqing River water quality.

Main Results:

  • Water quality degradation becomes irreversible when urbanization exceeds 25%.
  • A positive correlation exists between urbanization and urban river pollution post-adjustment.
  • Land and demographic aspects of urbanization have the most significant independent impact.

Conclusions:

  • Urbanization poses a substantial threat to river water quality.
  • Policy interventions are needed to manage economic and environmental impacts of urbanization.
  • The study provides a reference for policymakers in balancing development and environmental protection.