The Elusive Granary
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Comparative Overview of Gases Discharged from Menengai and Olkaria High Temperature Geothermal Fields, Kenya
Proceedings 5th African Rift geothermal Conference Arusha, Tanzania, 29-31 October 2014 Comparative Overview of Gases Discharged from Menengai and Olkaria High Temperature Geothermal Fields, Kenya 1Jeremiah K., Ochieng L., Mibei G., Kanda K. and Suwai J. Geothermal Development Company P.O.Box 17700 – 20100, Nakuru Kenya [email protected] Key words: Menengai, reservoir characteristics, Olkaria, discharge vapors, triangular diagrams ABSTRACT An analogy of representative gas compositions from wells drilled into the Menengai and Olkaria volcanic geothermal systems is presented in this paper with a view of drawing parallels as well as identifying variances in the characteristics of the reservoirs tapped by the wells. This contribution seeks to provide an insight into the possible processes that govern the composition of well discharge vapors as well as characterize the Menengai and Olkaria geothermal reservoirs. To achieve this, triangular diagrams comprising two major chemical constituents, H2O and CO2, together with other gas species H2S, H2, CH4 and N2 were employed to compare the chemical characteristics of vapors discharged from these two systems. It is found that the Olkaria reservoir fluids generally exhibit high H2O/CO2 ratios relative to the Menengai fluids. This is attributed to variations in CO2 gas content. High H2S content seems to characterize Menengai wells, particularly those that discharge from the vapor dominated zones. This inference is indicative of either a higher flux of magmatic gas or enhanced boiling in the reservoir as a consequence of a higher heat flux. The latter is found to be common in the wells as this inference is also complemented by the significantly high H2 content reported. -
"Afrika-Studien" Edited by Ifo-Institut Für Wirtschafts- Forschung E
© Publication series "Afrika-Studien" edited by Ifo-Institut für Wirtschafts- forschung e. V., München, in connexion with Prof. Dr. PETER VON BLANCKENBURG, Berlin Prof. Dr. HEINRICH KRAUT, Dortmund Prof. Dr. OTTO NEULOH, Saarbriicken Prof. Dr. Dr. h. c. RUDOLP STUCKEN, Erlangen Prof. Dr. HANS WILBRANDT, Gottingen Prof. Dr. EMIL WOERMANN, Gottingen Editors in Cbief: Dr. phil. WILHELM MARQUARDT, München, Afrilca-Studienstelle im Ifo-Institut Prof. Dr. HANS RUTHENDERG, Stuttgart-Hohenheim, Institut für Auslandische Landwirtscliafl AFRIKA-STUDIENSTELLE MWEA An Irrigated Rice Settlement in Kenya Edited by ROBERT CHAMBERS and JON MORIS WELTFORUM VERLAG • MÜNCHEN M. The Perkerra Irrigation Scheme: A Contrasting Case by ROBERT CHAMBERS I. Historical Narrative 345 II. The Problems Experienced 352 1. Construction and Irrigation Problems 352 2. Production and Marketing Problems 353 3. Problems of Tenants and Staff 355 4. Problems of Organisation and Control 358 III. Some Concluding Lessons 361 List of Tables 1. Development Targets and Adiievements 349 2. Finance and Settlement 350 3. Onion Acreages and Yields 354 4. The Perkerra Local Committee 360 It is difficult to appreciate adequately a single development project con- sidered in isolation from its environment and from the record of similar projects elsewhere. To give a sharper focus to our review in this book of the achievements of the Mwea Irrigation Settlement, this chapter describes the very different history of effort and expenditure on a sister scheme whidi was started at the same time and for much the same reasons as Mwea. The Per- kerra Irrigation Scheme is located in the Rift Valley north of Nakuru (see Chapter A, Fig. -
The County Boundaries Bill, 2016 247
SPECIAT ISSUE Kenya Gazette S Nor 176 (Senate Bills No. 16) REPI.JBLIC OF KENYA KENYA GAZETTE SU PPLEfrIIENT SENATE BILLS,2016 NAIROBI, Eth November, ?f.l6 CONTENT gil f#-,heoduction into the Senatc- PAGE The County Boundaries Bill,20l6 ...........223 inc L,''i.-HEi ffi ffilvffitrJ F,O,fiRbil?Ii}ffi:: rELr;; PRINTED AND PI.,BLISHED BY THE GOVERNIUE}.IT PBIMER, NAIROBI 223 TtilE CGUNTT BGUFIDAAffiS Btr"L*e016 FTTOT'CtAUSES Cla:,u'se PAHT I_PAMLITIffiN*MY I -$hsn fide. 2-ilnrcrpretstiorl. P*m,r s-Gounty bmudwies. 4--Cabimt secrctary to keep electmonic records. I Iff ydiation' PABTItrT- OT'C(}UFTilY B{}T'ITIDARYffi . 7-Eet&lisluffir,fi of a courrty borurdaries urediation somrnittgo. t- 8-Norm,imstion of rmernbers to the cofftrtrrittee. 9-Cosqrcefoim of ftrc"co$Irniffiee. l0-Rermvsl of a nrelnbcr of fte urediatiom cornrrittee. I I -Reslwprffiiom eu,d allowmces. Secrctariat. l2-Role of aMiation conrmithe. l3-Powers of &e comr*ittee. l4-Repon by &e Cormrittre. l5-Extenrion of tirmlims. , l6-Disoolmiom Gf a rnediation cormnittee. PANT ilV-ALM OT .COItrIt{TY BotllrwAnms l7-Fedtion for aftenmiom of dre boundariss of a county. I I - Submissist of a Pffiitiffi . 224 The County Boundaries Bill,2016 lg-Consideration of petition by special committee. z0-Recoiltmendation of special committee. /?l-Consideration of report of special committee by the t, Senate. zz-Consideration of report of special committee by the National Assembly. PART V-ESTABtTSHMENT, POVI{ERS AND TUNCTIONS OT AI{ II{DEPEhIDENT COTJNTY BOT]I\TDARIES COMMISSION z3-Establishment of a Commission. z4-Membership of the Commission. -
Implications of the Distribution of Seismicity Near Lake Bogoria in the Kenya Rift
Geophys. J. Int. (1991) 105, 665-674 Implications of the distribution of seismicity near Lake Bogoria in the Kenya Rift P. A. V. Young,'" P. K. H. Maguire,' N. d'A. Laffoley' and J. R. Evans2 'Department of Geology, Leicester University, University Road, Leicester LE1 7RH, UK 'British Geological Survey, Murchbon House, West Mains Road, Edinburgh EH9 3LA, UK Accepted 1991 January 2. Received 1990 July 19; in original form 1988 May 5 SUMMARY Previous seismicity studies in the Kenya Rift have not been able to determine accurately depths of earthquakes, nor have most of them determined epicentres precisely enough to allow correlation of the seismicity with particular surface features. We operated a small dense seismic array for 3 months near Lake Bogoria in the Kenya Rift with the aim of locating microearthquakes in 3-D. 572 earthquakes, 81 per cent with ML< 1.0, have been located. The majority of the events are associated with the larger older faults on the Rift shoulder rather than the young 'grid' faults in the centre of the Rift. Seismic activity in the central trough cannot be related directly to the surface faulting; we infer that it indicates the presence of deep buried faults. This possibility has important implications for extension estimates and models of the Rift. Most of the activity occurs at depths less than 12 km, and no normal activity is deeper than 16 km. There is a peak in seismic activity at a depth of 9-10 km and the cut-off depth for brittle failure is taken at 12 km. -
Irrigation Agriculture in Kenya
i IRRIGATION AGRICULTURE IN KENYA Impact of the Economic Stimulus Programme and Long-term Prospects for Food Security in an Era of Climate Change Nairobi March 2011 ii Research and draft by: Francis Z. Karina and Alex Wambua Mwaniki, Sower Solutions Ltd P.O. Box 14852-00100 Nairobi, Kenya Edited by: Zachariah Mairura Kiyondi For : Heinrich Böll Stiftung East & Horn of Africa Heinrich-Böll-Stiftung East Africa / Horn of Africa Regional Office Forest Road, P.O. Box 10799-00100 GPO, Nairobi, Kenya T +254 (0)20 2680745 -2613992 -2613997 Email: [email protected]: www.boell.or.ke Heinrich Böll Stiftung Schumannstr. 8D-10117 Berlin, Germany Tel: +49-30-28534-0 Email: [email protected] Web: www.boell.de About the Heinrich Böll Foundation The Heinrich Böll Stiftung / Foundation (HBF) is the Green Political Foundation, affiliated to the “Greens / Alliance ‘90” political party represented in Germany’s federal parliament. Headquartered in Berlin and with offices in more than 28 different countries, HBF con- ducts and supports civic educational activities and projects world-wide. HBF understands itself as a green think-tank and international policy network, working with governmental and non-governmental actors and focusing on gender equity, sustainable development, and democracy and human rights. HBF’s Regional Office for East & Horn of Africa oper- ates in Nairobi, Kenya, since 2001. © 2011 Heinrich Böll Stiftung, East and Horn of Africa All rights reserved. No part of this book may be reproduced without written permission from the publisher, except for brief quotation in books and critical reviews. For information and permissions, write to Heinrich Böll Stiftung. -
World Bank Document
Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Page | ELRP-Integrated Pest Management Plan – IPMP-Component 1 1 TABLE OF CONTENTS EXECUTIVE SUMMARY .............................................................................................. 6 1 INTRODUCTION................................................................................................... 20 1.1 Emergency Locust Response Program ............................................................... 20 1.2 Project Development Objective ......................................................................... 20 1.3 ELRP Project Components ................................................................................ 20 1.4 Selected Pesticides ............................................................................................. 21 1.5 Project Activities ................................................................................................ 22 1.6 Project Beneficiaries .......................................................................................... 23 1.7 Aims and Objectives of IPMP ............................................................................ 23 1.8 Component 1 Implementation Arrangements .................................................... 24 2 STAKEHOLDER ENGAGEMENT ..................................................................... 25 2.1 Stakeholder Identification .................................................................................. 25 2.2 Stakeholder -
Land Use/Land Cover Dynamics and Anthropogenic Driving Factors in Lake Baringo Catchment, Rift Valley, Kenya
Natural Resources, 2019, 10, 367-389 https://www.scirp.org/journal/nr ISSN Online: 2158-7086 ISSN Print: 2158-706X Land Use/Land Cover Dynamics and Anthropogenic Driving Factors in Lake Baringo Catchment, Rift Valley, Kenya Molly Ochuka1,2*, Chris Ikporukpo2, Yahaya Mijinyawa3, George Ogendi4 1Department of Agricultural and Environmental Engineering, Pan African University, Life and Earth Sciences Institute, University of Ibadan, Ibadan, Nigeria 2Department of Geography, University of Ibadan, Ibadan, Nigeria 3Department of Agricultural and Environmental Engineering, University of Ibadan, Ibadan, Nigeria 4Department of Environmental Science, Egerton University, Njoro, Kenya How to cite this paper: Ochuka, M., Ik- Abstract porukpo, C., Mijinyawa, Y. and Ogendi, G. (2019) Land Use/Land Cover Dynamics and Anthropogenic activities have altered land cover in Lake Baringo Catchment Anthropogenic Driving Factors in Lake Ba- contributing to increased erosion and sediment transport into water bodies. ringo Catchment, Rift Valley, Kenya. Nat- The study aims at analyzing the spatial and temporal Land Use and Land ural Resources, 10, 367-389. https://doi.org/10.4236/nr.2019.1010025 Cover Changes (LULCC) changes from 1988 to 2018 and to identify the main driving forces. GIS and Remote Sensing techniques, interviews and field ob- Received: August 19, 2019 servations were used to analyze the changes and drivers of LULCC from Accepted: October 8, 2019 1988-2018. The satellite imagery was selected from SPOT Image for the years Published: October 11, 2019 1988, 1998, 2008 and 2018. Environment for Visualizing Images (ENVI 5.3) Copyright © 2019 by author(s) and was used to perform image analysis and classification. The catchment was Scientific Research Publishing Inc. -
New Age Determinations and the Geology of the Kenya Rift-Kavirondo Rift Junction, W Kenya
J. geol. Soc. London, Vol. 136, 1979, pp. 693-704, 4 figs.. 1 table. Printed in Northern Ireland. New age determinations and the geology of the Kenya Rift-Kavirondo Rift junction, W Kenya W. B. Jones & S. J. Lippard SUMMARY: The area of the triple-rift junction in W Kenya, between the E-W Kavirondo Rift, the N-S Northern Kenya Rift and the NW-SE Central Kenya Rift, has been the site of continuous volcanic and tectonic activity sincethe Middle Miocene. From about20 to 7 Ma the area was dominated by the accumulation of a thick pile of nephelinitic and phonolitic volcanics in the Timboroa area. From 7 Ma to the present day, apart from local eruptionsof basanite in the W, the volcanic and tectonic activityhas been progressively concentrated towards the axial zone of the Kenya Rift with alkali basalt-trachyte sequences predominating. Duringthis period the Kavirondo Rift was inactive. The stratigraphic sequencein the area has been dated by 19 new K-Ar age determinations. These enable the absolute andrelative ages of the Tinderet, Timboroa, Kapkut, Londiani and Kilombe volcanoes tobe established for the first time. Topographical and structural considerationsshow that the Kavirondo Rift largely fades out 50 km W of the Kenya Rift and is barely perceptibleat its edge. The W wall of the Kenya Rift adjacent to the Kavirondo Riftis a monocline and is very similar to the South Turkana region. Although the area is adjacent to major rift-boundingfaults there is little faulting within it, the tectonic pattern being dominated by monoclines and volcano-tectonic structures. -
Compilation Inventory Cases Kenya
Joint Learning in Innovation Systems of African Agriculture (JOLISAA) 18 Inventory sho rt cases Kenya Compiled by: Kamau, G., Ng’ang’a and Kirigua, V Cover photo: Prosopis tree, Aloe nursery, Butterfly collection, Dairy goat and Solar ice maker 1 Table of Contents 1. LEARNING ABOUT MANAGEMENT OF PROSOPIS IN BARINGO.................................................................... 3 2. DOMESTICATION AND PROCESSING OF WILD ALOE (SECUNDIFLORA AND TURKANENSIS) IN BARINGO DISTRICT............................................................................................................................................................. 9 3. PARTICIPATION OF LOCAL COMMUNITIES IN CONSERVATION OF ARABUKO SOKOKE FOREST THROUGH BUTTERFLY FARMING ....................................................................................................................14 4. PRODUCTION OF CONTRACT SEED MAIZE PRODUCTION IN THE PERKERRA IRRIGATION SCHEME .....19 5. SOLVING CONFLICTS BY MANAGING WATER USE THROUGH WATER RESOURCES USERS ASSOCIATION ON RIVER WASEGES BASIN IN BARINGO .........................................................................................................23 6. PRIVATEPUBLIC PARTNERSHIP IN THE MANAGEMENT OF SOIL ACIDITY IN WESTERN KENYA USING LIME....................................................................................................................................................................27 7. PUBLICPRIVATE PARTNERSHIP FOR COMMERCIAL PRODUCTION OF GADDAM SORGHUM IN MAKUENI COUNTY, EASTERN KENYA ..............................................................................................................32 -
Impact of Introducing Reserve Flows on Abstractive Uses in Water Stressed Catchment in Kenya: Application of WEAP21 Model
International Journal of the Physical Sciences Vol. 5(16), pp. 2441-2449, 4 December, 2010 Available online at http://www.academicjournals.org/IJPS ISSN 1992 - 1950 ©2010 Academic Journals Full Length Research Paper Impact of introducing reserve flows on abstractive uses in water stressed Catchment in Kenya: Application of WEAP21 model Erick Mugatsia Akivaga1*, Fred A. O. Otieno1, E. C. Kipkorir2, Joel Kibiiy3 and Stanley Shitote3 1Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa. 2School of Environmetal Studies, Moi University, P. O. Box 3900-30100, Eldoret, Kenya. 3Department of Civil and Structural Engineering Moi University, P. O. Box 3900-30100, Eldoret, Kenya. Accepted 02 November 2010 Kenya is implementing Integrated Water Resources Management (IWRM) policies. The water policy provides for mandatory reserve (environmental flow) which should be sustained in a water resource. Four out of the six main catchments in Kenya face water scarcity. Further water resource quality objectives for many rivers are yet to be determined. This study applied Water Evaluation and Planning System (WEAP21) to study the implications of implementing the water reserve in Perkerra River which is among the few rivers that drain into Lake Baringo. The Tennant method was used to determine minimum environmental flows that should be sustained into the lake. WEAP21 was used to perform hydrological and water management analysis of the catchment. Mean monthly discharge time series of the catchment monitoring stations indicate that Perkerra River is becoming seasonal. The results further show that implementing the reserve with the present level of water management and development will increase the demand by more than 50%. -
Effects of Sea Water Intrusion on the Chemistry Of
UNIVERSITY OF NAIROBI COLLEGE OF BIOLOGICAL AND PHYSICAL SCIENCES SCHOOL OF PYSICAL SCIENCES Effects of sea water intrusion on the chemistry of hotsprings: A comparative study between Majimoto hotsprings in the Kenyan South Coast and Bogoria Hotsprings in the Rift Valley By: GEORGE IGUNZA MULUSA I56/60289/2011 A dissertation submitted in partial fulfillment of the requirements for the degree of Master of Science in Applied Geochemistry JULY, 2014 Declaration This thesis is my original work and has not been presented for a degree in any other university or any other award. Signature Date: Mr. George Igunza Mulusa Department of Geology, School of Physical Sciences, University of Nairobi This thesis has been submitted for examination with my approval as the supervisor; Signature Date: Prof. Daniel Olago Department of Geology, School of Physical Sciences, University of Nairobi Signature Date: Dr. Christopher M. Nyamai Department of Geology, School of Physical Sciences, University of Nairobi SignatureDate: Dr. Lydia Olaka Department of Geology, School of Physical Sciences, University of Nairobi i Declaration of Originality Name of Student George Igunza Mulusa Registration Number I56/60289/2011 College College of Biological Physical Sciences School School of Physical Sciences Department Department of Geology Course Name Master of Science in Applied Geochemistry Title of the Work Effects of sea water intrusion on the chemistry of hotsprings: A comparative study between Majimoto hotsprings in the Kenyan South Coast and Bogoria Hotsprings in the Rift Valley DECLARATION 1. I understand what Plagiarism is and I am aware of the University’s policy in this regard 2. I declare that this dissertation is my original work and has not been submitted elsewhere for examination, award of a degree or publication. -
THE COUNTY BOUNDARIES BILL, 2021 ARRANGEMENT of CLAUSES Clause PART I - PRELIMINARY 1—Short Title
SPECIAL ISSUE Kenya Gazette Supplement No. 42 (Senate Bills No. 20) REPUBLIC OF KENYA –––––––" KENYA GAZETTE SUPPLEMENT SENATE BILLS, 2021 NAIROBI, 23rd March, 2021 CONTENT Bill for Introduction into the Senate— PAGE The"County"Boundaries"Bill,"2021 ................................................................ 309 PRINTED AND PUBLISHED BY THE GOVERNMENT PRINTER, NAIROBI 309 THE COUNTY BOUNDARIES BILL, 2021 ARRANGEMENT OF CLAUSES Clause PART I - PRELIMINARY 1—Short title. 2—Interpretation. PART II – COUNTY BOUNDARIES 3—County boundaries. 4—Cabinet secretary to keep electronic records. 5—Resolution of disputes through mediation. 6—Alteration of county boundaries. PART III – RESOLUTION OF COUNTY BOUNDARY DISPUTES 7—Establishment of a county boundaries mediation committee. 8—Nomination of members to the committee. 9—Composition of the committee. 10—Removal of a member of the mediation committee. 11—Remuneration and allowances. 12—Secretariat. 13—Role of a mediation committee. 14—Powers of the committee. 15—Report by the Committee. 16—Extension of timelines. 17—Dissolution of a mediation committee. PART IV – ALTERATION OF COUNTY BOUNDARIES 18—Petition for alteration of the boundary of a county. 19—Submission of a petition. ! 1! 310310 The County Boundaries Bill, 2021 20—Consideration of petition by special committee. 21—Report of special committee. 22—Consideration of report of special committee by the Senate. 23—Consideration of report of special committee by the National Assembly. PART V – INDEPENDENT COUNTY BOUNDARIES COMMISSION 24—Establishment of a commission. 25—Membership of the commission. 26—Qualifications. 27—Functions of the commission. 28—Powers of the commission. 29—Conduct of business and affairs of the commission. 30—Independence of the commission.