Short-cutting the Phosphorus Cycle in Urban Ecosystems

1. Auflage 2017
ISBN: 978-1-138-42441-8
Verlag: Taylor & Francis Ltd

Buch, Englisch, 348 Seiten, Format (B × H): 152 mm x 229 mm, Gewicht: 454 g

This dissertation presents a methodology of short-cutting the phosphorus cycle in urban ecosystems. In nature, the P-cycle is a circular, closed-loop system, but human activities use and dispose P in a linear, open-ended system leading to the customary environmental problems. Lake Chivero in Zimbabwe is used as a case study to illustrate the unsustainable practice of discharging valuable and finite phosphorous into drinking water resources. Short-cutting or closing the P-cycle in the urban environment is closely related to the closure of water cycles. Closing the P-cycle is dependent on the adoption of ecological sanitation and eco-city concepts. These concepts lead to solutions, which are source orientated (local and small scale), non-mixing, ecologically sound, closed-loop systems. Recycling of P in urban ecological agriculture (without synthetic fertilisers) is used in this dissertation to test the feasibility of these concepts.

Autoren/Hrsg.

Gumbo, Bekithemba

Fachgebiete

• Technische Wissenschaften Bauingenieurwesen Bauingenieurwesen
• Technische Wissenschaften Umwelttechnik | Umwelttechnologie Wasserversorgung, Wasseraufbereitung

Inhaltsverzeichnis

Chapter 1 Introduction Chapter 2 Biogeochemistry of phosphorous global transfers and cycles Chapter 3 Description of study area Chapter 4 Establishing fluxes and stocks in an urban-shed Chapter 5 Options for short-cutting the phosphorus cycle Chapter 6 Conclusions Chapter 7 Epilogue

Über Autor(innen)

Bekithemba Gumbo