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Optimizing Arabica Coffee Production Systems in Rwanda
其他書名
A Multiple-scale Analysis
出版Wageningen University, 2018
ISBN94634327959789463432795
URLhttp://books.google.com.hk/books?id=qgjcuQEACAAJ&hl=&source=gbs_api
註釋The thesis covers a GIS Spatial analysis of coffee production systems at national level (chapters 2 and 3); at system and farm levels. It assessed the effects of best practices on soil erosion and soil fertility (chapters 4 and 5); and then it recommended best upscaling practices for a country level (chapters 3, 4, 5 and 6). Chapter 2 also reviewed coffee growing conditions, systems and soil management practices in Rwanda. Data showed that growing conditions are confined to an altitude range of 1,400 - 1,900 m a.s.l., an annual rainfall regime of 1,500 - 1,600 mm, a temperature class of 18 & ndash; 22 & deg;C, and an average sunlight amount of 2,000 - 2,400 hours per year. Coffee is mainly grown along the shores of Lake Kivu, on the plateau in the central part of Rwanda, and in the Mayaga region located in the Southern-East part of the country. In these areas, coffee is mainly cultivated on moderate slopes and soils with low fertility. Coffee requires deep and finely-textured soils, which are well drained, aerated with moderate acidity (i.e. pH of 4.5 - 6.0) and moderate-to-high fertility. Many of the coffee farming lands in Rwanda do not accommodate these ideal conditions, e.g. steep slopes or scattered coffee plots intercropped with annual crops. Steep slopes, in particular, deplete soil fertility through soil erosion. The thesis looked at how mulching can assist with erosion control, improve soil properties and boost yields in such farming situations.