Abstract
The development of the urban Binjiang belt has influenced the water environment quality. Taking the Chongqing section of the Yangtze River basin and the Binjiang section of the urban center as examples, representative water intake points were selected to extract the urban layout pattern of the Binjiang belt, and the distribution characteristics of its influence on water environment quality were studied using a geographic information system. A structural equation model was used to establish a model of the influence of urban layout on water environment quality, and the water quality test results were added to the model to calculate the contribution rates of different land types to water environment quality. The research results and methods can be used for reference for urban water environment quality and for evaluating the influence of urban design on water environment quality.
Highlights
Since the beginning of the industrial revolution in the 18th century, urban waterfront land has largely been transformed into industrial production belts due to convenient water resources and transportation conditions, thereby worsening urban river and lake system water environments [1].After the end of the industrial era, countries realized the seriousness of urban water pollution [2]
We focused on total phosphorus (TP), totalCoral nitrogen (TN), andHaitang chemical oxygen public service facility land
We focused on total phosphorus (TP), total nitrogen (TN), and chemical oxygen demand (COD) due to their recognized impacts on aquatic ecosystems and typical association with urban areas across the region
Summary
Since the beginning of the industrial revolution in the 18th century, urban waterfront land has largely been transformed into industrial production belts due to convenient water resources and transportation conditions, thereby worsening urban river and lake system water environments [1]. Waterfront space development should be aligned with the river water system model with as low as possible environmental impact to prevent shrinking the river water system, fragmenting the structure, and degrading the ecological function through efficient and intensive use of land, municipal facilities, roads, ecological waterfront green spaces, with waterfront land development and river drainage in harmonious coexistence [9]. Another theory related to urban planning and water environment is sponge city theory, which enables cities to have good resilience to adapt to environmental changes and cope with natural disasters. The water system distribution map of the main urban area of Chongqing
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