Browsing by Author "Musamba, Emmanuel"

Now showing 1 - 2 of 2

Assessment of current net benefit of water resource in different land-uses around the Kilombero valley Ramsar site in Tanzania
(Sokoine University of Agriculture, 2010) Musamba, Emmanuel
Water scarcity is globally getting worse in the light of increase in demand for water use. Human and ecosystem health and economic development are affected by problems of water scarcity and water pollution. This study was carried out to assess the current net benefit of water resource in different land uses around the Kilombero Valley Ramsar Site in Tanzania. Specifically the study was conducted to identify different land uses related to water, to determine and estimate costs and benefits of different land uses related to water and to quantify the monetary value of water in different land uses. Household questionnaires, checklist for key informants, participant observation and PRA techniques were employed for data collection. The data relating to household characteristics and water related economic activities were analysed using SPSS (version 16) whereby the cost for production, inputs and returns were analysed and compared using Microsoft Excel. The residual imputation approach was used to estimate the values of water in different land uses. The findings revealed that the main land uses were irrigation and rainfed agriculture, livestock keeping, small scale business and vegetables production. This study also established that the net values of water for brick making, livestock and domestic use are very high averaging at around Tsh. 3 186.7 (US$ 1.7) Tsh. 1 721.7 (US$ 1.4) and Tsh. 1 282.5 (US$ 1.3) per m 3 of water consumed respectively. For irrigated crops such as paddy and non paddy crops the net values were estimated to Tsh. 273.6 (US$ 0.23) and Tsh. 87.7 (US$ 0.073) per m 3 of consumed water respectively. Results show that the return from agriculture is smaller compared to returns from other water uses. Nevertheless, since majority of households are depending on agriculture this study recommends that emphasis should be put on effective and efficient use of water to improve its productivity.
The economic of water in paddy and non-paddy crop production around the Kilombero valley ramsar site, Tanzania: Productivity, costs, returns and implications to poverty reduction
(Journal of Agriculture Science, 2011) Musamba, Emmanuel; Ngaga, Yonika M; Giliba, Richard A; Boon, E. K; Sirima, Agnes; Chirenje, L I
Water scarcity is globally getting worse in the light of increase in demand for water use. Human and ecosystem health and economic development are affected by problems of water scarcity and water pollution. This paper assessed the net benefit of water resource in crop production around the Kilombero Valley Ramsar Site in Tanzania. Specifically, the study determines and estimates costs and benefits in crop production and quantify its monetary value using both market and non-market techniques. Household questionnaires, checklist for key informants, participant observation and participatory rural appraisal techniques were employed for data collection. Questionnaire survey was administered to 120 households to establish the major agricultural activities, crops, costs of production and income accrued from these activities. Data relating to household characteristics and water related economic activities were analysed using Statistical Package for Social Sciences whereby the cost for production, inputs and returns were analysed and compared using Microsoft Excel. The residual imputation approach was used to estimate the value of water in crop production. Findings revealed that, 88.3 percent of the respondents own land and 11.7 percent of them rent the land for crop production. The net values of water for irrigated paddy and non-paddy crops were estimated to Tsh. 273.6 (US$ 0.23) and Tsh. 87.7 (US$ 0.073) per m3 of consumed water respectively. The average productivity of water for paddy and non-paddy crop production is estimated at 0.85 kgm-3 and 0.69 kgm-3 of consumed water respectively. Furthermore, the returns from agriculture are less compared to returns from other water uses. Nevertheless, since majority of households are depending on agriculture this study recommends that emphasis should be put on effective and efficient use of water to improve its productivity.