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Now showing items 135-154 of 675
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Dam Water Level Prediction Using Vector AutoRegression, Random Forest Regression and MLP-ANN Models Based on Land-Use and Climate Factors.
(MDPI, 2022-11-11)To predict the variability of dam water levels, parametric Multivariate Linear Regression (MLR), stochastic Vector AutoRegressive (VAR), Random Forest Regression (RFR) and Multilayer Perceptron (MLP) Artificial Neural ... -
Deactivation Effects of Polyethylene Glycol (PEG) on in vitro Dry Matter Digestibility of Colophospermum mopane (Mophane) and Acacia Browse Trees in Botswana
(Asian Network for Scientific Information, 2006)This trial evaluated the deactivation effects of PEG 6000 on in vitro dry matter digestibility (IVDMD) of Colophospermum mopane (Mophane) and acacia browse trees. Samples were collected from Sebele Content farm except for ... -
Decomposition dynamics of leaves of six indigenous fruit trees commonly found on croplands of southern Africa
(Botswana University of Agriculture & Natural Resources, 2005)Leaf litter decomposition plays a crucial role in the cycling of both nutrients and energy in the tropical croplands. A field experiment was conducted at Botswana College of Agriculture’s Research Farm in 2003 to compare ... -
Demographic parameters of cowpea aphid Aphis craccivora (Homoptera: Aphididae) on different Botswana cowpea landraces
(Cambridge University Press, 2012-12-01)The variation in demographic parameters (namely survival and fecundity, intrinsic rate of natural increase pre-reproductive period and relative growth rate) was used to assess the resistance of cowpea landraces (namely ... -
Deposition rates of atmospheric particulates determined from 210Pb measurements in soils and air
(HARD Publishing, 2010)Deposition rates of atmospheric particles were determined using previously published 210Pb data in soils and air. The dry deposition velocities for moorland and woodland soils were 2.2±1.8 and 9±2 mm• s-1, respectively. ... -
Design and development of a borehole pumping and water level monitoring control system in Botswana
(Botswana University of Agriculture & Natural Resources, 2017-11-07)Botswana experiences recurrent droughts and has limited surface water resources with the average annual rainfall varying from a minimum of less than 250 mm in the Southwest region and a maximum of about 650 mm in the ... -
The design and use of agroforestry systems in Botswana
(University of Edinburgh, 1996)Botswana is a semi-arid country which has 80% of the population living in rural areas and engaged mainly in agriculture. Rural populations in Botswana depend heavily on woodlands for fuelwood, fencing poles, building and ... -
Determinant Factors Predicting the Dependencies of Local Communities on Plantation Forests and Their Levels of Participation on Management Activities in Basona Worena District, Ethiopia
(Routledge, 2020-02-21)Plantation forests provide numerous benefits to local communities that regularly interact with them. This study aimed at examining the determinant factors predicting the dependencies of local communities on plantation ... -
Determinants of Decision Making by Smallholder Farmers on Land Allocation for Small-Scale Forest Management in Northwestern Ethiopian Highlands.
(MDPI, 2022-06-03)Smallholder farmers in the northwestern Ethiopian Highlands are highly engaged in small-scale forest management. Participation in this activity can provide a key source of income for the farmers as well as wider benefits ... -
Determinants of herd productvity in Botswana: a focus on land tenure and land policy
(University of KwaZulu-Natal, 2006-02)This study attempts to identify factors responsible for determining differences in the productivity of cattle managed by communal and private livestock farmers in the southern region of Botswana during 1999/2000. It is ... -
Determinants of household energy choice for domestic chores: Evidence from the Semien Mountains National Park and Adjacent Districts, Northwest Ethiopia.
(Elsevier, 2023-04-04)Energy is a cornerstone and strategic tool to meet basic human needs and address many global development challenges. However, ensuring energy supply while limiting energy’s contribution to environmental change is a major ... -
Determinants of household welfare and poverty in Botswana, 2002/03 and 2009/10
(Botswana Institute for Development Policy Analysis, 2014-05)This paper investigates household determinants of welfare and poverty in Botswana. Using the 2002/03 Household Income and Expenditure Survey (HIES) and the 2009/10 Botswana Core Welfare Indicator Survey (BCWIS), and employing ... -
Determinants of household’s choice of livelihood diversification strategies in Chobe district, Botswana
(African Journal of Rural Development (AFJRD), 2020-12-31)To ensure reduced poverty levels and improved standard of living, the government of Botswana is aiming at diversifying its economy from mining to agriculture, industry, manufacturing, services and tourism. However, there ... -
Determinants of market participation and the institutional constraints: Case study of Kweneng West, Botswana
(Academic Journals, 2016-09)For smallholder livestock farmers to benefit from their livestock, they need to fully participate in the market. This study identifies the determinants of market participation by smallholder livestock farmers in Botswana. ... -
Determinants of vegetation type patch dieback in a semi-arid area, Tutume Sub-District, Botswana
(Academic Journals, 2018-01-12)Patch dieback of Colophospermum mopane (Kirk ex Benth.) Kirk ex J. Léonard, which was attributed to drought, soil surface condition and soil chemistry has been reported in South Africa. In Botswana, dieback of C. mopane ... -
Determination of the aroma properties of Mustard seeds by SPME - GC-MS
(Greener Journal of Biological Sciences, 2021-10-10)The objective of this study was to investigate the volatile aroma constituents of mustard seeds grown in Ethiopia by using SPME-GC-MS. In the analysis several sulfur contained compounds were identified. The ... -
Determination and source apportionment of selected heavy metals in aerosol samples collected from Sebele
(Science Publication, 2013-05-17)Bush fires and dust in the dry winter months establish moderately high background levels of aerosols. Emissions into the atmosphere by copper mines, coal mines and vehicular emissions are all possible sources of air pollution ... -
Determination of mineral content in sugar bean, lentils and groundnuts sold by the roadside in Gaborone, Botswana
(Human Journals, 2020-06-20)Samples of raw lentils, sugar beans and groundnuts were bought from a street vendor by the roadside at Gaborone Bus Station. Sample preparation was carried out by microwave digestion process. The digests were analyzed for ... -
Development and application of modern agricultural biotechnology in Botswana: The potentials, opportunities and challenges
(GM Crops & Food, 2014)In Botswana, approximately 40% of the population live in rural areas and derive most of their livelihood from agriculture by keeping livestock and practising arable farming. Due to the nature of their farming practises livestock ... -
Dimensional Relations and Physical Properties of Wood of Acacia saligna, an Invasive Tree species growing in Botswana
(International Science Community Association, 2013-07-06)A study was carried out to evaluate wood physical properties of Acacia saligna, an invasive alien species that has naturalized in Botswana. Wood samples were collected from three different trees at three different heights ...