Anders Dan Afrika Druk 1
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Growth Diagrams Deel 1997 Druk 1 Ing
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Author : Anke Maria Fredriks
language : en
Publisher: Bohn Stafleu van Loghum
Release Date : 2004
Growth Diagrams Deel 1997 Druk 1 Ing written by Anke Maria Fredriks and has been published by Bohn Stafleu van Loghum this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
South African Journal Of Science
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Author :
language : en
Publisher:
Release Date : 1988
South African Journal Of Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Science categories.
Hotel Prison Druk 1
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Author : J. de Cock
language : nl
Publisher: Lannoo Uitgeverij
Release Date : 2003
Hotel Prison Druk 1 written by J. de Cock and has been published by Lannoo Uitgeverij this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Verslag van ontmoetingen met gevangenen in de gehele wereld tijdens een wereldreis langs gevangenissen.
Mednet Deel Jaarboek 2007 Druk 1 Ing
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Author :
language : nl
Publisher: Bohn Stafleu van Loghum
Release Date :
Mednet Deel Jaarboek 2007 Druk 1 Ing written by and has been published by Bohn Stafleu van Loghum this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Vogelgids Van Europa Druk 1
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Author : L. Svensson
language : nl
Publisher: ANWB Media - Boeken & Gidsen
Release Date : 2005
Vogelgids Van Europa Druk 1 written by L. Svensson and has been published by ANWB Media - Boeken & Gidsen this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Statutes Of The Republic Of South Africa
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Author : South Africa
language : en
Publisher:
Release Date : 1967
Statutes Of The Republic Of South Africa written by South Africa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Law categories.
Siviele Ingenieur In Suid Afrika
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Author :
language : en
Publisher:
Release Date : 1992
Siviele Ingenieur In Suid Afrika written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Civil engineering categories.
The Effect Of Harvesting And Flooding On Nutrient Cycling And Retention In Cyperus Papyrus Wetlands
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Author : Edwin M.A. Hes
language : en
Publisher: CRC Press
Release Date : 2021-11-18
The Effect Of Harvesting And Flooding On Nutrient Cycling And Retention In Cyperus Papyrus Wetlands written by Edwin M.A. Hes and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-18 with Science categories.
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.
Agricultural Science In South Africa
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Author :
language : en
Publisher:
Release Date : 1973
Agricultural Science In South Africa written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Agriculture categories.
Dagboek Van Een Activiste Druk 1
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Author : N. Klein
language : nl
Publisher: Lemniscaat Publishers
Release Date : 2002
Dagboek Van Een Activiste Druk 1 written by N. Klein and has been published by Lemniscaat Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Artikelen over de verregaande macht van multinationale ondernemingen en het protest daartegen.