Browsing by Author "Msanya, B.M"
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Item Human activity spaces and plague risks in three contrasting landscapes in Lushoto District, Tanzania(Tanzania Journal of Health Research, 2014-07-14) Hieronimo, P.; Gulinck, H; Kimaro, D.N; Mulungu, L.S; Kihupi, N.I; Msanya, B.M; Leirs, H; Deckers, J.ASince 1980 plague has been a human threat in the Western Usambara Mountains in Tanzania. However, the spatial-temporal pattern of plague occurrence remains poorly understood. The main objective of this study was to gain understanding of human activity patterns in relation to spatial distribution of fleas in Lushoto District. Data were collected in three landscapes differing in plague incidence. Field survey coupled with Geographic Information System (GIS) and physical sample collections were used to collect data in wet (April to June 2012) and dry (August to October 2012) seasons. Data analysis was done using GIS, one-way ANOVA and nonparametric statistical tools. The degree of spatial cooccurrence of potential disease vectors (fleas) and humans in Lushoto focus differs significantly (p ≤ 0.05) among the selected landscapes, and in both seasons. This trend gives a coarse indication of the possible association of the plague outbreaks and the human frequencies of contacting environments with fleas. The study suggests that plague surveillance and control programmes at landscape scale should consider the existence of plague vector contagion risk gradient from high to low incidence landscapes due to human presence and intensity of activities.Item Investigation of environmental factors for Land management in Litembo village, Mbinga District, Tanzania(Sokoine University of Agriculture and ARI Mlingano, 1996) Kimaro, D.N; Meliyo, J.L; Msanya, B.M; Maggogo, J.P; Wickama, J.MThis report describes the natural resources study of Litembo village as part of the continuing project on the assessment of the natural resources of Mbinga district. The study covers measurements of terrain elements, soil physical and chemical properties, land use systems including farming and production systems and an appraisal of the ecological potential and constraints of the village natural resources.Item Investigation of the environmental attributes for agricultural development in kitanda village, Mbinga district, Tanzania(Sokoine University of Agriculture, 1996) Msanya, B.M; Wickama, J.M; Kimaro, D.N; Maggogo, J.P; Meliyo, J.LThis report describes the study of environmental attributes of Kitanda village as part of the continuing project on the assessment of the natural resources of Mbinga district. The study involved measurements of terrain elements, quantitative investigations of soil properties, inventory of land use systems and an assessment of the ecological potential and constraints as determined from a balance sheet analysis of resources and land use requirements.Item Pedological investigations of sites for slash and burn experiment in Lupilo village and soil erosion studies in Tukuzi village, Mbinga District, Tanzania(Sokoine University of Agriculture and ARI Mlingano, 1995) Kimaro, D.N; Msanya, B.M; Maggogo, J.PThe study area (Mbinga district) is under the Miombo Woodland zone of Tanzania which are areas that are or at one time were under Miombo Woodlands. Two villages namely Lupilo and Tukuzi were covered in the study at the request of other scientists interested to carry out experiments respectively on "slash and burn" type of agriculture and on soil erosion. Detailed characterization of two sites representative of the two villages was done including general ecological conditions, pedological measurements and soil clay mineralogy.Item Predicting soil EC e based on values of EC 1:2.5 as an indicator of soil salinity at Magozi irrigation scheme, Iringa, Tanzania(An International Journal of Basic and Applied Research, 2021) Isdory, D.P; Massawe, B.H.J; Msanya, B.MSoil salinity is one of the limitations to sustainable production of rice and other crops in many irrigation schemes in Tanzania. Soil salinity can be assessed from electrical conductivity (EC) measurements. Most soil laboratories in Tanzania appraise soil salinity from measurements of electrical conductivity of 1:2.5 soil:water suspensions (EC 1:2.5 ) by virtue of their simplicity. However, the influence of soil salinity on plant growth is mainly based on electrical conductivity of saturated paste extract (EC e ), so it is necessary to convert EC 1:2.5 to EC e in order to assess plant response to salinity. This study was conducted at Magozi Irrigation Scheme in Iringa Region, Tanzania to establish regression model for predicting EC e from EC 1:2.5 values. A total of 60 soil samples (45 samples for model training and 15 samples for model validation) were collected and analyzed for soil EC 1:2.5 , EC e and soil texture. Results showed that EC 1:2.5 ranged from 0.1 to 4.2 dS m -1 with a mean value of 0.71 dS m -1 . EC e obtained ranged from 0.3 (non-saline) to 12 dS m -1 (very saline) with a mean of 2.4 dS m -1 (slightly saline). In order of dominance, soil textural classes were sandy clay loam, clay, sandy clay, sandy loam and clay loam. Strong linear relationships between EC e and EC 1:2.5 were observed in the developed linear regression equations. After validation, the study selected equation ECe = 3.4954*EC 1:2.5 with R 2 of 0.956 for combined soil textures to be used for prediction of EC e from EC 1:2.5 at Magozi Irrigation Scheme. This model can be tested for its applicability to other similar soils in Tanzania in further studies.