It soon became apparent that soil degradation in the Ethiopian Highlands may be posing a threat not only in terms of the physical loss of soils, but also in terms of deteriorating, soil chemical fertility. This study has therefore emphasized both the physical and chemical deterioration of soils due to degradation.
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Library ResourceConference Papers & ReportsMarch, 1984Ethiopia
Library ResourceConference Papers & ReportsJanuary, 1984Africa
This paper concentrates more on the indicators that deal more or less directly with the increase of agricultural productivity and production. There is the fundamental constraint then that because of the imprecise nature of some of the factors to be measured, the indicators themselves may not in fact be measuring what they were meant to measure. However, this does not relieve the user of constructor of indicators from the obligation to offer a hypothesis as a start and then work to the final “theorem” for that is what all indicators at the start are hypothesis.
Library ResourceConference Papers & ReportsDecember, 1984Central America, South America
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