Three major river basins flow out of Ethiopia into Sudan, constituting the Eastern Nile basin (the White Nile flows from the south). These are the Tekeze-Atbara flowing out of northern Ethiopia, the Baro-Akoba- Sobat flowing from southern Ethiopia, and the Blue Nile (Abay) sandwiched between the other two. The Blue Nile Basin, called the Abay in Ethiopia, is the largest branch of the Nile draining the Ethiopian highlands. It covers an estimated area of 311,437 square kilometers and is shared by Ethiopia and Sudan. It joins the White Nile in Khartoum, Sudan.

The manual was created specifically for use in the Western Kenya Smallholder Agricultural Carbon project, managed by the Swedish NGO Vi Agroforestry, which is the test case for the first Voluntary Carbon Standard (VCS) methodology for generating carbon credits by building organic matter in agricultural soils. The project aims to provide support to farmers as they implement the sustainable agricultural and management (SALM) practices which generate the carbon credits within the project.

In this chapter, results of recent research conducted in the northern Ethiopian region of Tigray, which has experienced severe land degradation are synthesized. This paper highlights the technological and institutional factors determining the adoption of natural resource conservation at both the household and the community levels.

This book is another collaborative effort between CIAT and The Nippon Foundation to review and summarize the results of many years of research on cassava, especially that conducted in Asia by CIAT in collaboration with national programs in the various cassava-growing countries. [...] The main objective was not only to continue the development of new technological options to improve cassava yield while protecting the soil from degradation but also to enhance the adoption of these technologies by cassava farmers.