颁布单位：[University of the Free State] |  颁布时间：2004 |  实施时间：2004 |  学科分类：[["Land, use, --, Ethiopia","Land, use, --, Economic, aspects, --, Ethiopia","Thesis, (Ph.D., (Agricultural, Economics))--University, of, the, Free, State,, 2004"]]

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颁布单位：[University of the Free State] |  颁布时间：2003 |  实施时间：2003 |  学科分类：[["Semi-arid, ecotope","Transpiration, efficiency, coefficient","Water, extraction","Radiation, interception","Radiation, use, efficiency","Soil, evaporation","Water, use","Precipitation, use, efficiency","Intercropping, --, Kenya","Crops, and, water, --, Kenya","Plant-water, relationships, --, Kenya","Cropping, systems, --, Kenya","Thesis, (Ph.D., (Agrometeorology))--University, of, the, Free, State,, 2003"]]

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颁布单位：[University of the Free State] |  颁布时间：2001 |  实施时间：2001 |  学科分类：[["Water, use, --, Economic, aspects, --, South, Africa, --, Berg, River","Water-supply, --, South, Africa, --, Berg, River","Thesis, (Ph.D., (Agricultural, Economics))--University, of, the, Free, State,, 2001"]]

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