The Impact of Wetland Utilisation on Provisioning Ecosystem Services in Nyando Wetland, Kenya

Abstract

People’s livelihoods in developing countries are often directly dependent on wetlands and watersheds for the provision of food, water, fuel, wood, fibre, and genetic resources. The high rural population density within the Lake Victoria basin is facilitating the rapid conversion of land to settlement and agriculture. These activities have resulted in the depletion of wetland resources to the extent that they cannot replenish naturally, thus threatening the Nyando wetland ecosystem, potential recreational opportunities, and the livelihoods of local communities. This paper, therefore, examines the implication of Nyando wetland utilisation in provisioning ecosystem services. A case study survey design approach was employed for data collection. Both quantitative and qualitative data were collected to answer the study objectives. Stratified random sampling was conducted to collect data from 391 households using a structured questionnaire. An interview guide was also used to collect data from stakeholder representatives at the national and county governmental level, non-governmental organisations, and members of the local community. Descriptive statistics were used to analyse the quantitative data, while qualitative data were analysed through content analysis by ordering distinct themes into similar categories. A land-use change analysis was performed using an unsupervised classification technique. The results show that the local community depends on the wetland for farming, firewood, settlement, roofing and mat-making materials, and fishing for domestic and commercial use. The local community’s increased demand and utilisation of Nyando wetland resources has contributed to a reduction in the size of the wetland and consequently affected the availability of ecosystem services. Thus, sustainable utilisation of the wetland is needed.