Time series of vegetation indices (VI) derived from satellite imagery provide a consistent monitoring system for terrestrial plant productivity. They enable detection and quantification of gradual changes within the time frame covered, which are of crucial importance in global change studies, for example. However, VI time series typically contain a strong seasonal signal which complicates change detection. Commonly, trends are quantified using linear regression methods, while the effect of serial autocorrelation is remediated by temporal aggregation over bins having a fixed width.

Land is one of the basic elements of the environment and multi-functional versatile resource, which is particularly threatened by natural processes, and actions of human activities. Although it is difficult to assess the extent of land degradation problems, there is no doubt that people around the world feel the consequences of its effects. Loss of productive land has a direct impact on agriculture in rural communities, primarily in the form of reduced yields and revenues are based on this exercise.

This review characterizes the major themes of articles on reducing emissions from deforestation and forest degradation (REDD) published between January 2007 and December 2010 in various peer-reviewed journals, as well as selected reports in the 'grey literature'.

Land degradation has become a growing concern with the current increase in demand for arable land. Sustainable land management and land restoration practices are required in order to meet the demands to provide food and other services. Adoption of improved practices has, however, not been widespread partly because of a lack of clarity on the true economic value and setting of proper financial incentives. This review focuses on the economic costs of land degradation as a prelude to two ongoing initiatives involving the United Nations Convention to Combat Desertification (UNCCD).

The purpose of this paper is to outline
an approach for Bank engagement in forests, trees, and
woodlands on farms in Sub-Saharan Africa for the coming five
years. The paper takes the framework of the Africa
development strategy, which has two main pillars: supporting
employment and competitiveness, and building resilience and
reducing vulnerability; and one underlying foundation:
strengthening capacity and governance. It is consistent with

The purpose of this report is to improve
the knowledge base for facilitating investments in land
management technologies that sequester soil organic carbon.
While there are many studies on soil carbon sequestration,
there is no single unifying volume that synthesizes
knowledge on the impact of different land management
practices on soil carbon sequestration rates across the
world. A meta-analysis was carried out to provide soil