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Showing items 1 through 9 of 9.
  1. Library Resource

    Volume 9 Issue 6

    Peer-reviewed publication
    June, 2020
    Algeria, Sudan, Eritrea, Ethiopia, South Sudan, Cameroon, Central African Republic, Chad, Burkina Faso, Mali, Mauritania, Niger, Nigeria, Senegal

    The Re-Greening of the West African Sahel has attracted great interdisciplinary interest since it was originally detected in the mid-2000s. Studies have investigated vegetation patterns at regional scales using a time series of coarse resolution remote sensing analyses. Fewer have attempted to explain the processes behind these patterns at local scales. This research investigates bottom-up processes driving Sahelian greening in the northern Central Plateau of Burkina Faso—a region recognized as a greening hot spot.

  2. Library Resource

    Volume 9 Issue 5

    Peer-reviewed publication
    May, 2020
    Algeria, Sudan, Eritrea, Ethiopia, South Sudan, Cameroon, Central African Republic, Chad, Burkina Faso, Mali, Mauritania, Niger, Nigeria, Senegal

    Desertification is defined as land degradation occurring in the global drylands. It is one of the global problems targeted under the Sustainable Development Goals (SDG 15). The aim of this article is to review the history of desertification and to evaluate the scientific evidence for desertification spread and severity. First quantitative estimates of the global extent and severity of desertification were dramatic and resulted in the establishment of the UN Convention to Combat Desertification (UNCCD) in 1994. UNCCD’s task is to mitigate the negative impacts of desertification in drylands.

  3. Library Resource

    Volume 7 Issue 4

    Peer-reviewed publication
    December, 2018
    Burkina Faso

    West African savannas are experiencing rapid land cover change that threatens biodiversity and affects ecosystem productivity through the loss of habitat and biomass, and carbon emissions into the atmosphere exacerbating climate change effects. Therefore, reducing carbon emissions from deforestation and forest degradation in these areas is critical in the efforts to combat climate change. For such restorative actions to be successful, they must be grounded on a clear knowledge of the extent to which climate change affects carbon storage in soil and biomass according to different land uses.

  4. Library Resource
    Peer-reviewed publication
    October, 2013
    Algeria, Sudan, Burkina Faso, Nigeria, Mauritania, Chad, Mali, Cameroon, Senegal, Central African Republic, South Sudan, Ethiopia, Niger, Eritrea

    The paper analyzes land use changes, notably cropland expansion, in SE-Niger from the mid-1980s to 2011. It scrutinizes land use trajectories and investigates how cultivation shifts between dune landscapes and valleys (bas-fonds) in response to climate, population pressure, and sociocultural opportunities, combining lenses rooted in land change science and the notions of double exposure and human-environmental timelines. Specifically, the interest is directed towards exploring the value of different methods of land use data harvesting.

  5. Library Resource
    Peer-reviewed publication
    October, 2015
    Burkina Faso

    The present study aimed to detect the main shifts in land-use architecture and assess the factors behind the changes in typical tropical semi-arid land in Burkina Faso. Three sets of time-series LANDSAT data over a 23-year period were used to detect land use changes and their underpinning drivers in multifunctional but vulnerable ecologies. Group discussions in selected villages were organized for mapping output interpretation and collection of essential drivers of change as perceived by local populations. Results revealed profound changes and transitions during the study period.

  6. Library Resource
    Peer-reviewed publication
    October, 2014
    Algeria, Sudan, Burkina Faso, Nigeria, Mauritania, Chad, Mali, Cameroon, Senegal, Central African Republic, South Sudan, Ethiopia, Niger, Eritrea

    The Sahel has been the focus of scientific interest in environmental-human dynamics and interactions. The objective of the present study is to contribute to the recent debate on the re-greening of Sahel. The paper examines the dynamics of barren land in the Sahel of Burkina Faso through analysis of remotely-sensed and rainfall data from 1975–2011. Discussions with farmers and land management staff have helped to understand the anthropogenic efforts toward soil restoration to enable the subsistence farming agriculture.

  7. Library Resource
    Peer-reviewed publication
    October, 2014
    Algeria, Sudan, Burkina Faso, Nigeria, Mauritania, Chad, Mali, Cameroon, South Sudan, Central African Republic, Senegal, Ethiopia, Niger, Eritrea

    Climatic stress and anthropogenic disturbances have caused significant environmental changes in the Sahel. In this context, the importance of soil is often underrepresented. Thus, we analyze and discuss the interdependency of soil and vegetation by classifying soil types and its woody cover for a region in the Senegalese Ferlo. Clustering of 28 soil parameters led to four soil types which correspond with local Wolof denotations: Dek, Bowel, Dior and Bardial.

  8. Library Resource
    Peer-reviewed publication
    October, 2016
    Burkina Faso

    The poverty and environmental degradation vicious circle hypothesis considers the poor as agents and victims of environmentally degrading activities. Despite some studies, however, there still has not been a sufficient empirical examination of the poverty-environment nexus.

  9. Library Resource
    Peer-reviewed publication
    December, 2014
    Algeria, Sudan, Burkina Faso, Nigeria, Mauritania, Chad, Mali, Cameroon, Senegal, Central African Republic, South Sudan, Ethiopia, Niger, Eritrea, Africa

    Crown diameter and tree density were measured in 52 communities in the Sudan-Sahel using satellite imagery to determine the relationships between rainfall and distance from community center to crown size diameter and tree density. As distance from the community center increased, tree density and crown diameter decreased. As rainfall increased, tree density decreased while crown diameter increased. Distance from the community center is a proxy for age since urbanization and our results indicate that older parts of communities show longer and more consistent tree management.

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