Evaluating environmental sustainability with the Waste Absorption Footprint (WAF): An application in the Taihu Lake Basin, China
2015
Jiao, Wenjun | Min, Qingwen | Fuller, Anthony M. | Yuan, Zheng | Li, Jing | Cheng, Shengkui | Li, Wenhua
The ecological footprint (EF) is an accepted worldwide method for the evaluation of environmental sustainability. However, its utility is limited by the existence of a series of shortcomings in the methodology such as the only-partial inclusion of human generated wastes. To improve the ability of the footprint method to evaluate environmental sustainability, a new footprint-based indicator – the ‘Waste Absorption Footprint’ (WAF) – has been proposed. The purpose of this paper is to test this methodological approach by evaluating the sustainability of the water environment in the Taihu Lake Basin, in densely populated eastern China. Applying the WAF method indicates that anthropogenic discharges of wastes have imposed an absorption pressure on the local water system such that the local water environment is increasingly unsustainable. Furthermore, nitrogen and phosphorus are identified as more critical wastes than organic substances, while domestic discharges are shown to be more important sources compared with those from industry and agriculture, which therefore should be the focus of environmental management and pollution control initiatives. It is demonstrated that the WAF method can provide a wealth of information that can be used for reference by local water environmental management authorities.
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