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There are 1, 166 content items of different types and languages related to geographical information systems on the Land Portal.
Displaying 25 - 36 of 578

Poverty

Journal Articles & Books
December, 2013
Eastern Africa

Book chapter

Agroecological zones

Journal Articles & Books
December, 2013
Eastern Africa

Agroecological zones (AEZs) are geographical areas exhibiting similar climatic conditions that determine their ability to support rainfed agriculture. At a regional scale, AEZs are influenced by latitude, elevation, and temperature, as well as seasonality, and rainfall amounts and distribution during the growing season.

Accessing local markets: Marketsheds

Journal Articles & Books
December, 2013
Eastern Africa

Across Africa buying and selling connects people. For a small-scale farmer, this trade takes place primarily within a limited geographic area based on access to market centers of a given size. The maps illustrate these areas using different colors to represent marketsheds—geographical areas and associated populations that are part of real or potential trade networks with a given market. From any location within a marketshed, it takes less time to travel to the corresponding market compared to any neighboring markets.

Examining the sense and science behind Ghana’s current blanket fertilizer recommendation

Reports & Research
December, 2013
Ghana

This paper was written to help bolster the case and present visual evidence demonstrating why it is important to seriously consider spatial soil fertility variability in Ghana and to promote area-specific fertilizer recommendations. Using geostatistical analysis of soil samples collected from farmer plots in three districts (Tamale Municipality, Savelugu-Nanton, and West Mamprusi in northern Ghana), the paper analyzes spatial variations in soil fertility.