Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Wetland transformation through Water Resource Users Association; The case of Rwamuthambi Sub Catchment area, Kenya

  • Received : 2020.04.28
  • Accepted : 2020.08.15
  • Published : 2020.08.31
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Abstract

Many studies conducted in Kenya regarding water resource governance have focused on the mandate of Water Resource Users Associations (WRUAs) with less attention being accorded to their effectiveness in conservation of wetlands. This study assessed the effectiveness of WRUA committees, and challenges faced in conservation of Rwamuthambi Sub-catchment. The study employed exploratory descriptive research design. Data was collected through questionnaires, semi-structured interviews, observations and review of secondary data. Chi square and descriptive statistics was used to analyze the data. The survey results revealed that only 15% of WRUA committee understood water resources management while 35% were aware of relevant legislations. Factors of wetland degradation showed significant association with existence of WRUA (χ2 (4, N=180) = 20.46, p< .01) where (χ2- chi square (degrees of freedom, N = sample size) = chi-square statistic value, p = p value), although WRUA contributions were perceived differently per agro-ecological zone (χ2 (8, N=147) = 15.51, p>.05). Challenges unearthed were inadequate financial and human resources, lack of understanding, ineffective collaborative governance, poor support from county government and private ownership of riparian land reserve. There is need for WRUAs to embrace collaborative governance for effective conservation of wetlands. Integration of sub catchment management plan with county land use plans and policy review is also required.

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References

  1. Alexiu, TM., Lazar, TA., Baciu, EL (2011). Community participation and involvement in social actions, Transylvanian Review of Administrative Sciences 33E/2011 pp. 5-22 Accessed on 1-4-19
  2. Ansell, C (2012). The Oxford Handbook of Governance Political Science, Public Policy Oxford University Press Print Publication Online Publication DOI: 10.1093/oxfordhb/9780199560530.013.0035
  3. Ansell, C and Gash, A (2008). Collaborative Governance in Theory and Practice, Journal of Public Administration Research and Theory, 18 (4) pp. 543-571, https://doi.org/10.1093/jopart/mum032 Accessed on 29-7-19
  4. Babcock, HM (1991). Federal wetlands regulatory policy: Up to its ears in alligators. https://scholarship.law.georgetown.edu/cgi/viewcontent.cgi?article=2199&context=facpub 8 Pace Environmental Law Review Online. 307-353, Accessed on 19-6-19
  5. Baldwin, E, Washington-Ottombre, C, Dell'Angelo, J, Cole, D, and Evans, T (2015). Polycentric governance and irrigation reform in Kenya Governance 29(2) pp. 207-225 Accessed on 16-3-2020 https://doi.org/10.1111/gove.12160
  6. Beyene, A, and Luwesi, CN (2018). 'Innovative water finance in Africa a guide for water managers: 1, Water finance innovations in context' pp. 82-113. Available at:http://www.diva-portal.org/smash/get/diva2:1193386/FULLTEXT01.pdf#page=85 (Accessed: 15 May 2018)
  7. Bondi, DO and John, M (2006). Land tenure systems and natural resource management in Land we trust; Environment, Private property and constitutional change 85 Nairobi initiative publishers
  8. Boschet, C and Rambonilaza, M (2015). Integrating water resource management and land-use planning at the rural-urban interface: Insights from a political economy approach. Water Resources and Economics Elsevier 9 pp.45-59. 10.1016/j.wre.2014.11.005ff.ffhal-01140270f Accessed on 20-3-2020
  9. Carlsson, L and Berkes, F (2005) Co-Management: Concepts and Methodological Implications Journal of Environmental Management 75(1) pp. 65-76 DOI: 10.1016/j.jenvman.2004.11.008 Accessed on 12-3-2020
  10. Chapungu, L and Hove, C (2013). Human Perceptions on Degradation of Wetland Ecosystems: The Case of Magwenzi Wetland in Chivi District; Zimbabwe Greener Journal of Geology and Earth Sciences 1 (1), pp. 013-022 Accessed on 24-12-2017 https://doi.org/10.15580/GJGES.2013.1.071113716
  11. Chee, HL., Ngai, WC and Ranjan, R (2017). Understanding Public Perception of and Participation in Non-Revenue Water Management in Malaysia to Support Urban Water Policy Water 9(1) pp. 26 https://doi.org/10.3390/w9010026 Accessed on 20-3-2020
  12. Chepyegon, C and Kamiya, D (2018). Challenges Faced by the Kenya Water Sector Management in Improving Water Supply Coverage Journal of Water Resource and Protection 10 pp. 85-105. https://doi.org/10.4236/jwarp.2018.101006 Accessed on 11-3-2020
  13. Cobbaert, D. & Trites, M. & Dam, A. & Robinson, M. (2011). An Assessment of Wetland Health and Values in Alberta's Industrial Heartland DOI; 10.13140/RG.2.1.5180.3604.
  14. Cooper, TL, Bryer, TA, and Meek, JW (2006). Citizen-centered collaborative public management. Public Administration Review, 66(1) pp. 76-88 Accessed on 1-8-19 https://doi.org/10.1111/j.1540-6210.2006.00668.x
  15. County Government of Kirinyaga (CGK) (2013) County Integrated Development Plan (CIDP) Kenya Government Printers
  16. Dipeshi, J, (2016). Shifting paradigms in wetland governance:Shaping and reshaping conservation World Wide Fund (WWF) for nature, Nepal
  17. Dudgeon, D, Arthington, AH, Gessner, MO, Kawabata, ZI, Knowler, DJ, Levêque, C, Naiman RJ, Prieur-Richard, A, Soto, D, Stiassny, MLJ and Sullivan CA (2006). Freshwater biodiversity: importance, threats, status and conservation challenges. Biological Reviews of the Cambridge Philosophical Society 81 pp. 163-182 doi:10.1017/S1464793105006950
  18. Emerson, K, Nabatchi, T, Balogh, S (2012). An integrative framework for collaborative governance Journal of public administration research and theory 22(1) pp. 1-29 https://doi.org/10.1093/jopart/mur011 Accessed on 1-8-19
  19. Farm Management Handbook of Kenya (2010). VOL. II -Natural Conditions and Farm Management Information - Annex: - Atlas of Agro-Ecological Zones, Soils and Fertilizing by Group of Districts - Subpart B2 Central Province Kirinyaga County
  20. Folke, C, Hahn, T, Olsson, P, and Norberg, J (2005). Adaptive Governance of Social-Ecological Systems Annual review environment and Resource 15 pp. 441-73 doi https://doi.org/10.1146/annurev.energy.30.050504.1445 11 Accessed on 3-3-2019
  21. Gawler, M (ed.) (2002) Strategies for Wise Use of Wetlands, Best Practices in Participatory Management, Proceedings of a Workshop held at the 2nd International Conference on Wetlands and Development (November 1998, Dakar, Senegal). Wetlands International IUCN, WWF Publication No. 56, Wageningen, The Netherlands
  22. Geertsma, R, Wilschut, LI, and Kauffman, JH (2009). Baseline review of the Upper Tana, Kenya. Green Water Credits Report 8, ISRIC - World Soil Information, Wageningen
  23. Giordano, MF, Giordano, MA, Wolf, AT (2005). International resource conflict and mitigation Journal of Peace Research 42(1) pp. 47-65 [Google Scholar] https://doi.org/10.1177/0022343305049666
  24. Gokce, D (2018). Wetlands Management - Assessing Risk and Sustainable Solutions http://dx.doi.org/10.5772/intechopen.82456
  25. Gorard, S (2013). Research Design: Creating Robust Approaches for the Social Sciences. Thousand Oaks, CA:Sage. Accessed from http://libguides.usc.edu/writingguide/researchdesigns, on 28-2-2018
  26. Government of Kenya (GOK) (1974). Water Act Cap 372 Laws of Kenya
  27. Government of Kenya (GOK) (2002). Water Act Laws of Kenya
  28. Government of Kenya (GOK) (2010) Kenya National Bureau of Statistics (KNBS) Population and Housing Census Report
  29. Government of Kenya (GOK) (2012a). Agriculture Act Cap 318, Laws of Kenya
  30. Government of Kenya (GOK) (2012b) Survey Act 299 cap 299, Laws of Kenya
  31. Government of Kenya (GOK) (2016) Land registration Act, Laws of Kenya
  32. Government of Kenya (GOK) (2016). Water Act Laws of Kenya
  33. Government of Kenya (GOK) (2019). Physical and Land Use Planning Act (PLUPA) Laws of Kenya
  34. Government of Kenya (GOK). (2017) National Land Use Policy Sessional paper No. 1 of 2017, Kenya
  35. Government of Kenya (GOK). (2010) Constitution of Kenya Laws of Kenya
  36. Guzman, RA, Hes, E, Schwartz, K, (2011). "Shifting governance modes in wetland management: A case study of two wetlands in Bogota, Colombia" Environment and Planning C: Government and Policy 29 pp. 990-1003 DOI:10.1068/c10144 Accessed on 2-8-19
  37. Henle, K, Alard, D, Clitherow, J (2008). Identifying and Managing the Conflicts between Agriculture and Biodiversity Conservation in Europe-A Review. Agriculture, Ecosystems & Environment-Scientific Research 124 pp. 60-71 DOI:10.1016/j.agee.2007.09.005 Accessed on 2-8-19
  38. Horse, T (2018). Statistics How To Theme http://www.statisticshowto.com/probability-and-statistics/find-sample-size/ Accessed on 12-1-2018
  39. Huntington, HP., Begossi, AS., Gearheard, F., Kersey, B., Loring, PA., Mustonen, T., Paudel PK., Silvano, RAM., and Vave, R (2017). How small communities respond to environmental change: patterns from tropical to polar ecosystems Ecology and Society 22(3):9 pp. 1-13 Accessed on 7-3-2020
  40. Jaetzold, R., Schmidt, H., Hortnetz, B and Shisanya, C (2007). Farm Management handbooks of Kenya, vol. II: Natural conditions and farm management information, "Part C East Kenya, Subpart C1 Eastern Province" Ministry of Agriculture and GTZ, Nairobi, Kenya, pp. 1-571
  41. Jawuoro, SO, Koech, OK, Karuku GN, Mbau, JS. (2017). Organization and performance of water resource users' associations in the southern rangelands of Kenya, Tropical and Subtropical Agro-ecosystems 20(3) pp. 401-411 Accessed on 5-6-19
  42. Johanna, H., Emmah, O., Paola, M and Petri, P (2015). Local assessment of changes in water-related ecosystem services and their management: DPASER conceptual model and its application in Taita Hills, Kenya, International Journal of Biodiversity Science, Ecosystem Services & Management, 11(3) pp. 225-238, DOI: 10.1080/21513732.2014.985256 Accessed on 8-3-2020
  43. Jorge, B and Ignacio, C (2015). Implementing Integrated water resources management in the Ebro River Basin: from theory to facts Sustainability 7(1) pp. 441-464; https://doi.org/10.3390/su7010441 Accessed on 27-12-19
  44. K'akumu, OA., Olima, WH., and Opiyo, RO (2016). Local Experiences in Irrigation Management Transfer (Imt): The Case of the West Kano Scheme in Kenya. Irrigation and Drainage, 65(5) pp 682-690 Accessed on 16-3-2020 https://doi.org/10.1002/ird.1995
  45. Kenya Law Reports (Environment and Land) (KLR E&L) (2006). National Council for Law reporting Government of Kenya Nairobi
  46. Kibuika, FM, and Wanyoike, D (2012). Assessment of Factors Affecting Sustainability of Rural Water Supply Scheme in Nyandarua County Kenya: A Case of Kangui Water Scheme. International Journal of Science and Research 3 pp. 578-584.
  47. Kingsford RT (2011). Conservation management of rivers and wetlands under climate change- a synthesis Marine and Freshwater Research, 62 pp. 217-222 DOI: 10.1071/MF11029
  48. Lan C (2015). Collaborative Governance: The solution to complex public problems. Jinan Journal (Philosophy and Social Sciences) 2 pp. 110-118 ISSN 2225-0972(Online) Accessed on 1-8-19
  49. Leedy, PD and Ormrod JE (2013). Practical research, planning and design. 10th edition Boston. Accessed from http://libguides.usc.edu/writingguide/researchdesigns, on 28 February 2018
  50. Lemly, D, Kingsford, RT, and Thompson, JR (2000). Irrigated agriculture and wildlife conservation, conflict on a global scale. Environmental Management 25, pp. 485-512 doi:10.1007/S002679910039 Accessed on 28-7-19
  51. Liniger, H. P., Studer, M. R., Hauert, C, & Gurtner, M. (2011). Sustainable land management in practice-Guidelines and best practices for Sub-Saharan Africa Rome: TerrAfrica, WOCAT and FAO.
  52. Loucks, D. P., and van Beek, E. (2017). Water resources planning and management: An overview Springer,Cham pp.1-49 https://doi.org/10.1007/978-3-319-44234-1_1 Accessed on 07-04-2020
  53. Mamoon, D (2018). Environment Case Study: Forestry and water management in Thailand: A win win situation, Turkish Economic Review (TER) 5 (2) pp. 223-225 DOI:10.1111/j.1477-8947.1989.tb00348
  54. Manzungu, E (2004). Water for all: Improving water resource governance in southern Africa. International institute of environment and development, National research group and sustainable agriculture and rural livelihoods programme Gate keeper series International Institute for Environment and Development 113 pp. 5-15 Accessed on 27-01-2020
  55. Marambanyika, T. & Beckedahl, H. (2016a). Institutional Arrangements Governing Wetland Utilization and Conservation in Communal Areas of Zimbabwe. Review of social sciences 2 (1) pp 01-17 ISSN 2378-8550 doi; http://dx.doi.org/10.18533/rss.v2i1.71 https://www.socialsciencesjournal.org/index.php/site/article/view/71˃, Accessed 1-2-2018
  56. Marambanyika, T., Beckedahl, H and Ngetar, NS (2016b). Community strategies to promote sustainable wetlandbased food security in rural areas of Zimbabwe Springer GeoJournal 81 No. DOI 10.1007/s10708-016-9724-0 https://www.researchgate.net/publication/303740605 Accessed on 12-4-19
  57. Masifia, YY and Sena SO (2017). Factors Influencing Water Resource Governance among Pastoral Community at Mkondoa Sub Catchment, Morogoro Region, Tanzania International Journal of Scientific & Technology Research 6(6) pp. 148-172 ISSN 2277-8616 Accessed on 2-5-2019
  58. Mathenge, JM, Luwesi, CN, Shisanya, CA, Ishmail, M, Akombo, RA (2014). Water security where where government policies conflict with local practices; the role of community water management system in Ngaciuma-Kanyaritha, Kenya International Journal of Innovative Research & Development 3 (5) pp. 793-804 ISSN 2278-0211 (Online) Accessed on 13-2-19
  59. Mati, B. M., Mutie, S., Gadain, H., Home, P., and Mtalo, F. (2008). Impacts of land-use/cover changes on the hydrology of the transboundary Mara River, Kenya/Tanzania. Lakes Reserve. 13, 169-177. doi:10.1111/j.1440-1770.2008.00367.x
  60. Mati, B. M., Mutie, S., Gadain, H., Home, P., and Mtalo, F. (2008). Impacts of land-use/cover changes on the hydrology of the transboundary Mara River, Kenya/ Tanzania. Lakes Reserve. 13, 169-177. doi: 10.1111/j.1440-1770.2008.00367 Accessed on 20-4-2020
  61. Mati, E and Mugo, K (2018). 41st Transformation towards sustainable and resilient wash services Sector and project financing in Kenya: financing strategies for service delivery (Kenya) Water Engineering and Development Centre (WEDC) International Conference, Egerton University, Nakuru, Kenya Paper 2971 https://www.issuelab.org/resources/33359/33359.pdf?download=true Accessed on 16-3-2020
  62. McCord, P., Dell'Angelo, J., Baldwin, E., and Evans, T (2017). Polycentric Transformation in Kenyan Water Governance:A Dynamic Analysis of Institutional and Social-Ecological Change. Policy Studies Journal 45 pp. 633-658 Accessed on 16-3-2020 https://doi.org/10.1111/psj.12168
  63. Millennium Ecosystem Assessment (MA) (2005). Ecosystems and human wellbeing: five volume set Washington DC, USA: Island Press http://pdf.wri.org/ecosystems_human_ wellbeing.pdf Accessed on 15-1-19
  64. Ministerial Conference on the Protection of Forests in Europe (MCPFE) (2009). Sustainable Forest Management and Influences on Water Resources - Coordinating Policies on Forests and Water Workshop on Forests and Water 12-14 May 2009 in Antalya, Turkey, https://www.foresteurope.org/documentos/Forests_and_Water.pdf ISBN 978-82-92980-02-6 Accessed on 12-01-2020
  65. Ministry of Environment and Mineral Resources- MEMR (2012). Master Plan for the Conservation and Sustainable Management of Water Catchment Areas in Kenya, Government of Kenya http://www.preventionweb.net/files/34692_conservationmasterplanfinal.pdf Accessed 30-9-17
  66. Ministry of Environment, Water & Natural Resources (MEWNR) (2014). Upper Tana Natural Resources Management Project Baseline Survey Report Government of Kenya
  67. Ministry of State for Planning (MSP) (2007). Vision 2030 Sessional Paper No. 10 of 2012 Government of Kenya
  68. Namvua, E (2019). Sustainable land-use planning balances agriculture, natural resources in Kilombero African Wildlife foundation Google scholar Accessed on 18-3-2020
  69. Ngowi, N., John, A., and Mwakajea, G (2018). Implementation effects of incentive policies on Tanzanian wetland ecosystems Kasetsart Journal of Social Sciences https://www.sciencedirect.com/science/article/pii/S2452315117304472 Accessed 12-5-19
  70. Noga, J and Wolbring, G (2013). Perceptions of Water ownership, water management, and the responsibility of providing clean water Water 5 pp. 1865-1889 doi:10.3390/w5041865
  71. Omolo, A (2010). Devolution in Kenya: A critical review of past and present frameworks in devolution in Kenya, prospects, challenges and the future. Mwenda (ed). IEA Research Paper No. 24
  72. Oremo, F, Mulwa, R and Oguge, N (2019). Multi-level water governance in Tsavo sub catchment, Kenya, Global Journal of science frontier research pp. 21-34 doi 10.34257/GJSFRHVOL19IS3PG21 Accessed on 18-3-2020
  73. Pahl-Wostl, C., and Kranz, N (2010). Water governance in times of change Environmental Science & Policy, 13(7) pp. 567-570 Accessed on 16-3-2020 https://doi.org/10.1016/j.envsci.2010.09.004
  74. Parker, H and Oates, N (2016). How do healthy rivers benefit society? A review of the evidence -Working and discussion papers- Working Paper 430 WWF-UK Accessed on 12-3-2020
  75. Patrick, M and Heymans, C (2015). 'Water Services Devolution in Kenya, Briefing note to support effective and sustainable devolution of water and sanitation services in Kenya Supporting the new Water Policy and Act in alignment to the new Constitution of Kenya 2010 The World Bank Water and Sanitation Program, 2010
  76. Pearson, VMA., Paul W., Dianna CG and Lynne MH (2012). When to use what research design. New York: Guilford. Accessed from http://libguides.usc.edu/writingguide/researchdesigns, on 28-2-2018
  77. Rambonilaza, T., Boschet, C and Brahic, E (2015). Moving towards multilevel governance of wetland resources: Local water organizations and institutional changes in France Sage: Environment and Planning C: Politics and Space 33 (2) pp. 393-411 doi.org/10.1068/c12299, https://journals.sagepub.com/doi/abs/10.1068/c12299 Accessed on 15-1-19
  78. Rampa, F (2011). Analyzing Governance Water Sector Kenya, European centre for development and policy management Discussion Paper No. 124 www.ecdpm.org/dp124,-Analysing-Governance-Water-Sector-Kenya-2011.pdf Accessed on 20-11-2017
  79. Ramsar (1999). "People and Wetlands: The Vital Link" 7th Meeting of the Conference of the Contracting Parties to the Convention on Wetlands (Ramsar, Iran, 1971), San Jose, Costa Rica, 10-18 May 1999
  80. Rebelo, M. M., Senaratna, L. M., Sellamuttu, S., and de Silva, S. (2010). Wetlands, agriculture and poverty reduction, International Water management Institute (IMWI) Research Report 137, Colombo, Sri Lanka, International Water Management Institute (IWMI)
  81. Richards, N and Syallow, D (2018) Water Resources Users Associations in the Mara Basin, Kenya: Pitfalls and opportunities for community based natural resources management, Policy and practice reviews article Frontiers in Environmental Science https://doi.org/10.3389/fenvs.2018.00138
  82. Richards, N and Syallow, D (2018) Water Resources Users Associations in the Mara Basin, Kenya: Pitfalls and opportunities for community based natural resources management, Policy and practice reviews article Frontiers in Environmental Science https://doi.org/10.3389/fenvs.2018.00138 Accessed on 20-4-2020
  83. Richardson, BJ, (1996). Scales of Environmental Management:Wetlands Conservation in Kenya and Uganda 8 African Journey of International and Comparative Law 8(4) pp. 904-931 http://heinonline.org/HOL/LandingPage?handle=hein.journals/afjincol8&div=51&id=&page=, Accessed on 20-11-2017
  84. Rodriguez, MI., Grindlay, AL., Cuevas, MM., and Zamorano, M (2015). Integrating land use planning and water resource management: Threshold scenarios - A tool to reach sustainability WIT Press journals -Transactions on Ecology and the Environment 192 pp. 231-242 doi 10.2495/ECO150211 Accessed on 18-3-2020
  85. Rucker, M (2017). How to determine the sample size for your study Category Research https://unstick.me/determinethe-sample-size-study/ Accessed on 20-2-19
  86. Saleth, RM and Dinar, A (2008). Linkages within institutional structure: An empirical analysis of water institutions Journal of institutional economics 4 (3) pp. 375-401 DOI:https://doi.org/10.1017/S1744137408001136
  87. Salih, M (2001). African Democracies and African Politics, London. Steling. Virginia, Pluto Press,
  88. Saunders, M., Lewis, P., & Thornhill, A (2003). Research method for business students, 3rd edition. New York:Prentice Hall.
  89. Schoenbach, V. J. (2004). Data analysis and interpretation; Concepts and techniques for managing, editing, analyzing and interpreting data for epidemiological studies Accessed from http://www.epidemiolog.net/evolving/DataAnalysisand-interpretation.pdf on 7-1-2018
  90. Sidoruk, M, Skwierawski, A, (2006). Influence of the catchment's use on calcium, sodium, potassium and magnesium in water inflow to the Bukwald Lake Ecological Chemistry and Engineering 13 (S2) pp. 337-343 Accessed on 13-2-2020
  91. Stringer, L. C., Twyman, C and Thomas, D. S. G. (2007). "Combating Land Degradation through Participatory Means: The Case of Swaziland," Royal Swedish Academy of Sciences Report, Vol. 36(5) pp. 387-393, Accessed on 26-12-2017
  92. Sun, X (2017). Research and Prospect of Collaborative Governance Theory Public Policy and Administration Research 7 (7) pp. 50-53 ISSN 2224-5731(Paper) ISSN 2225-0972(Online) Accessed on 1-8-19
  93. Tomo, A., Hinna, A., Mangia, G., De Nito, E. (2018). Collaborative Governance: A successful case of public and private interaction in the Port City of Naples Cross-Sectoral Relations in the Delivery of Public Services. Studies in Public and Non-Profit Governance Emerald Publishing Limited 6 pp. 177-193. https://doi.org/10.1108/S2051-663020180000006009
  94. Ukumu, J. O. (2019). Environmental Science; The science of integration Professional Inaugural Lecture Makerere University
  95. UN (2015). 2030 Sustainable Development Goals
  96. UNDP (2004). Water Governance for Poverty Reduction Accessed on 16-3-2020
  97. Vorosmarty, CJ., Green, P., Salisbury, J., and Lammers, RB (2000). Global water resources: vulnerability from climate change and population growth. Science 289 pp. 284-288. doi:10.1126/SCIENCE.289.5477.284 Accessed on 28-7-19
  98. Water Services Trust Fund WSTF (2009). Water resource users' association development cycle (WDC) A process of technical and financial support for community based water resource management. Government of Kenya Nairobi
  99. Yang, X., Dong, J and White, PD (2006). The Key Role of Water Resources Management in Ecological Restoration in Western China Geographical Research 44(2) pp 146-154 Accessed on 08-04-2020 https://doi.org/10.1111/j.1745-5871.2006.00378.x
  100. Yerian, S., Hennink, M., Greene, LE., Kiptugen, D., Buri, J., and Freeman, MC. 2014. The Role of Women in Water Management and Conflict Resolution in Marsabit, Kenya. Environmental management, 54(6) pp. 1320-1330 doi:10.1007/s00267-014-0356-1 Accessed on 16-3-2020
  101. Youssef, Z., (2012). Introduction to Stata, data analysis and statistical software, University academic computing technologies, The American University in Cairo
  102. Zuquette, L., Colares, J. & Pejon, OB (2002). Environmental degradation related to human activities, Fortaleza Metropolitan region, state of Ceara, Brazil Springer-Engineering Geology and the Environment 61(3) pp. 241-251 https://doi.org/10.1007/s10064-001-0138-x Accessed on 29-7-19