DECLARATION
I, Lefranc Busane Basima, declare to the senate of the
University of Zimbabwe that this thesis is my original work and all other
sources of material used are duly acknowledged. This work has not been
submitted to any other university for any academic award.
Signature
Lefranc Busane Basima University of Zimbabwe
Dept of Civil Engineering Zimbabwe
July 2005
DEDICATION
To my father Busane Chentwali Lambert who guided my first steps
in assiduity at work;
To my mother Buhendwa Brigini Nabintu who showed me, through
perseverance and abnegation, the way of salvation and of hard work;
To Prof. Muhigwa Bahananga, J-B who taught me to think and dream
big and who opened the «English world» to me;
To all those who have endured sacrifices in one way or another
to make me complete this work. May you learn that «sacrifice is the
great work of joy, the filial act par excellence, the act through which a
profane thing becomes sacred, a lost being can find himself again, a temporal
thing becomes eternal, and something soiled is consecrated».
To all those «Epris de Justice et de Paix»
«Take away from me the noise of your songs... but let
justice roll down like waters, and righteousness like an overflowing
stream». Amos 5,21-24
ACKNOWLEDGEMENTS
This work has been the fruit of the efforts of many people to
whom we feel greatly indebted.
A sincere acknowledgment is made to Prof. B. Marshall from the
Biology Dept. who kindly accepted to supervise this work and to generously
provide equipments, manuals and other facilities in addition to his valuable
guidance.
I am greatly indebted to the co-supervisor Dr A. Senzanje who
made everything
possible. His great sense of humanity and understanding,
availability and
disposition to assist, and his allocation of working
facilities will never be forgotten.
Chhatra Mani Sharma (PhD candidate at the NORAGRIC/Sweden) and
Kate Shick (Montana/USA) kindly revised the manuscripts. Prof. Muhigwa
Bahananga Jean-Berckmans (from the University of Kisangani-CUB) assisted in the
statistical analysis of our data. Ass. Mulongaibalu Mbalassa (MAKERERE
University) helped us in the identification of macrophytes.
The fieldwork was made possible by the unconditional
assistance of Lennart Woltering (TU Delft/Netherlands), Terry Marima (SSAE-UZ)
and Sawunyama Tendai.
The kind assistance of David Love with accommodation at
ICRISAT-Bulawayo, Mrs Elisabeth Munyoro with books and lab materials, Chief
technician T. Tendayi for the physico-chemical analysis and The National Parks
offices in Harare and Bulawayo in allowing us to sample in the Matopos National
Park was greatly appreciated.
Many thanks to the support in any kind of Prof Muhigwa
(UNIKIS-CUB), Papa Lunanga (UNIKIS-CUB), Dr Trinto Mugangu, Prof Bashwira S.,
Jean de Dieu Boroto (GWP-SA), Dr Kim Prochazka (IOSA-SA), Anton Earle
(IWMI-SA), Ian Ford (UWC), Me Wenceslas Busane Ruhanamirindi, Bellarmin B.
Ntaboba, Emmanuel B. Aganze, Sr Bertille B. Bintu, Flle Lambertine B. Lola,
Flle Jacques Birugu and Solange Bashwira.
Last but not least, I am very grateful to Prof. Simbi (Dean of
Faculty of Engineering), without whom this work could have never been started.
His great paternal sense and understanding, allowed me to become what I am
today. May you feel rewarded by this humble acknowledgement!
The CPWF Small Reservoirs Project (SRP) PN46 sponsored this
thesis fieldwork while WATERnet sponsored our studies in IWRM Masters program
in collaboration with UNESCO-IHE/Netherlands.
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