Short-cutting the Phosphorus Cycle in Urban Ecosystems
eBook - ePub

Short-cutting the Phosphorus Cycle in Urban Ecosystems

  1. English
  2. ePUB (mobile friendly)
  3. Available on iOS & Android
eBook - ePub

Short-cutting the Phosphorus Cycle in Urban Ecosystems

About this book

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. A phosphorus calculator has been developed, based on studies of monthly P-fluxes and stocks, in a high-density suburb of Harare in Zimbabwe, where agriculture is an established activity.

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Information

Publisher
CRC Press
Year
2026
Topic
Biological Sciences
eBook ISBN
9781040892893
Subtopic
Ecology
Index
Biological Sciences

Table of contents

  1. Cover
  2. Half Title
  3. Title Page
  4. Copyright Page
  5. Dedication
  6. Table of Contents
  7. Acknowledgements
  8. Abstract
  9. Preface
  10. List of symbols
  11. Chapter 1 Introduction
  12. Chapter 2 Biogeochemistry of phosphorus global transfers and cycles
  13. Chapter 3 Description of study area
  14. Chapter 4 Establishing fluxes and stocks in an urban-shed
  15. Chapter 5 Options for short-cutting the phosphorus cycle
  16. Chapter 6 Conclusions
  17. Chapter 7 Epilogue
  18. References
  19. Appendix A Regional food, fibre and P-fertiliser balances
  20. Appendix B Phosphorus content in various goods
  21. Appendix C STELLA model equations
  22. Appendix D Sensitivity and reliability of model parameters
  23. Appendix E Relevant websites
  24. Samenvatting
  25. About the author

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Yes, you can access Short-cutting the Phosphorus Cycle in Urban Ecosystems by Bekithemba Gumbo in PDF and/or ePUB format, as well as other popular books in Biological Sciences & Ecology. We have over 1.5 million books available in our catalogue for you to explore.