Ward Jonet, C2007-08-032000Ward, J. (2000). Urban aquatic environments. In G. H. Stewart & M. E. Ignatieva (Eds.), Urban biodiversity and ecology as a basis for holistic planning and design: Proceedings of a workshop held at Lincoln University, 28-29 October 2000 (pp. 60-64). Christchurch, New Zealand: Wickliffe Press.https://hdl.handle.net/10182/74Rivers, streams, lakes, wetlands and estuaries in urban environments can be a real asset to a city. They can also be depressing because they are no longer what we might call "natural". The main impact of urban development is a change in hydrology by altering the flow regimes. This has been done by drainage of wetlands, channelisation of rivers and streams, and covering the land with hard surfaces that reduce infiltration and increase runoff. Engineers, ecologists and planners need to work together to revert to more natural designs incorporating ecological principles.enurban environmentsriversstreamslakeswetlandsConference Contribution - publishedMarsden::300801 Environmental management and rehabilitationMarsden::310103 Urban and regional planning