Landscapes to eco-scapes: prescriptive transitions for urban waterways for an Indian megacity

IF 1.6 3区 环境科学与生态学 Q3 WATER RESOURCES Urban Water Journal Pub Date : 2023-11-26 DOI:10.1080/1573062X.2022.2086883
Souporni Paul, S. Bardhan
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Abstract

ABSTRACT Urban wetlands and waterways are vital for a city’s defence, transport, water supply, environment, and culture. However, overuse, environmental stress, and management issues degenerate their condition, particularly in countries with high populations, limited funds, and improper infrastructure. A megacity in eastern India, Kolkata is blessed with two significant rivers, an efficient canal system, and a wetland of international prominence. Unfortunately, various factors disturbed their natural flow, slaying them with pollution, sedimentation, and reduced aquatic biodiversity, thus losing their socio-cultural importance. The paper analyses the interactions and inter-relationships between the city’s main waterways in a comprehensive environmental, socio-economic, and cultural context. It also presents a prescriptive framework for the eco-restoration and management of the city’s waterways. The target-driven strategies comprise the spatio-physical components of land, land-water interface, and water for physical, ecological, and hydro-morphological restoration of these waterways as an urgent step towards urban sustainability and resilience.
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从景观到生态景观:印度特大城市城市水道的规定性过渡
摘要 城市湿地和水道对城市的防御、交通、供水、环境和文化至关重要。然而,过度使用、环境压力和管理问题使其状况恶化,尤其是在人口众多、资金有限和基础设施不完善的国家。加尔各答是印度东部的一个特大城市,拥有两条重要的河流、一个高效的运河系统和一个国际知名的湿地。不幸的是,各种因素扰乱了它们的自然流向,造成污染、沉积和水生生物多样性减少,从而失去了它们的社会文化重要性。本文从综合环境、社会经济和文化角度分析了城市主要水道之间的相互作用和相互关系。论文还提出了城市水道生态恢复和管理的规范性框架。以目标为导向的战略包括土地、水陆界面和水域等空间物理要素,以恢复这些水道的物理、生态和水文形态,作为实现城市可持续性和恢复力的紧迫步骤。
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来源期刊
Urban Water Journal
Urban Water Journal WATER RESOURCES-
CiteScore
4.40
自引率
11.10%
发文量
101
审稿时长
3 months
期刊介绍: Urban Water Journal provides a forum for the research and professional communities dealing with water systems in the urban environment, directly contributing to the furtherance of sustainable development. Particular emphasis is placed on the analysis of interrelationships and interactions between the individual water systems, urban water bodies and the wider environment. The Journal encourages the adoption of an integrated approach, and system''s thinking to solve the numerous problems associated with sustainable urban water management. Urban Water Journal focuses on the water-related infrastructure in the city: namely potable water supply, treatment and distribution; wastewater collection, treatment and management, and environmental return; storm drainage and urban flood management. Specific topics of interest include: network design, optimisation, management, operation and rehabilitation; novel treatment processes for water and wastewater, resource recovery, treatment plant design and optimisation as well as treatment plants as part of the integrated urban water system; demand management and water efficiency, water recycling and source control; stormwater management, urban flood risk quantification and management; monitoring, utilisation and management of urban water bodies including groundwater; water-sensitive planning and design (including analysis of interactions of the urban water cycle with city planning and green infrastructure); resilience of the urban water system, long term scenarios to manage uncertainty, system stress testing; data needs, smart metering and sensors, advanced data analytics for knowledge discovery, quantification and management of uncertainty, smart technologies for urban water systems; decision-support and informatic tools;...
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