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The effect of harvesting and flooding on nutrient cycling and retention in Cyperus papyrus wetlands

Af: Edwin M.A. Hes Engelsk Paperback
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The effect of harvesting and flooding on nutrient cycling and retention in Cyperus papyrus wetlands

Af: Edwin M.A. Hes Engelsk Paperback

African papyrus (Cyperus papyrus L.) wetlands provide water, food and materials to millions of people, and perform important landscape functions such as water and nutrient storage, habitat provision for fish, birds and other wildlife. They are also an integral part of the culture of African wetland communities. With an increasing demand for food, papyrus wetlands are at risk of conversion to agriculture and losing these ecosystem services. Combining increased agricultural production with wetland conservation is urgently needed. The research presented in this book consisted of two parts. First, field experiments investigated nitrogen and phosphorus retention, showing that papyrus grows faster with disturbance from human activities or flooding, but produces less biomass and stores less nutrients. Then, a dynamic simulation model (Papyrus Simulator) based on the hydrological and ecological wetland processes showed that assimilation, mortality, decay, re-translocation, nutrient inflow and soil porosity were the most influential factors. The model demonstrated that controlled harvesting can increase nutrient retention by up to 40%, but overharvesting leads to the release of nutrients. These findings can help determining optimum harvesting strategies for constructed and natural wetlands, and contribute to the quantification of ecosystem services and an evidence-based adaptive management approach for African wetland landscapes.

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African papyrus (Cyperus papyrus L.) wetlands provide water, food and materials to millions of people, and perform important landscape functions such as water and nutrient storage, habitat provision for fish, birds and other wildlife. They are also an integral part of the culture of African wetland communities. With an increasing demand for food, papyrus wetlands are at risk of conversion to agriculture and losing these ecosystem services. Combining increased agricultural production with wetland conservation is urgently needed. The research presented in this book consisted of two parts. First, field experiments investigated nitrogen and phosphorus retention, showing that papyrus grows faster with disturbance from human activities or flooding, but produces less biomass and stores less nutrients. Then, a dynamic simulation model (Papyrus Simulator) based on the hydrological and ecological wetland processes showed that assimilation, mortality, decay, re-translocation, nutrient inflow and soil porosity were the most influential factors. The model demonstrated that controlled harvesting can increase nutrient retention by up to 40%, but overharvesting leads to the release of nutrients. These findings can help determining optimum harvesting strategies for constructed and natural wetlands, and contribute to the quantification of ecosystem services and an evidence-based adaptive management approach for African wetland landscapes.

Produktdetaljer
Sprog: Engelsk
Sider: 188
ISBN-13: 9781032194615
Indbinding: Paperback
Udgave:
ISBN-10: 1032194618
Udg. Dato: 18 nov 2021
Længde: 0mm
Bredde: 297mm
Højde: 210mm
Forlag: Taylor & Francis Ltd
Oplagsdato: 18 nov 2021
Forfatter(e): Edwin M.A. Hes
Forfatter(e) Edwin M.A. Hes


Kategori Hydrologi og hydrosfæren


Sprog Engelsk


Indbinding Paperback


Sider 188


Udgave


Længde 0mm


Bredde 297mm


Højde 210mm


Udg. Dato 18 nov 2021


Oplagsdato 18 nov 2021

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