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Showing items 1 through 9 of 6.
  1. Library Resource
    Peer-reviewed publication
    March, 2014
    Botswana

    Northern Botswana is influenced by various socio-ecological drivers of landscape change. The African elephant (Loxodonta africana) is one of the leading sources of landscape shifts in this region. Developing the ability to assess elephant impacts on savanna vegetation is important to promote effective management strategies. The Moving Standard Deviation Index (MSDI) applies a standard deviation calculation to remote sensing imagery to assess degradation of vegetation.

  2. 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.

  3. 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.

  4. Library Resource
    Peer-reviewed publication
    October, 2014
    Ethiopia

    In many Sub-Saharan African countries, fuelwood collection is among the most important drivers of deforestation and particularly forest degradation. In a detailed field study in the Kafa region of southern Ethiopia, we assessed the potential of efficient cooking stoves to mitigate the negative impacts of fuelwood harvesting on forests. Eleven thousand improved cooking stoves (ICS), specifically designed for baking Ethiopia’s staple food injera, referred to locally as “Mirt” stoves, have been distributed here. We found a high acceptance rate of the stove.

  5. 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.

  6. Library Resource
    Peer-reviewed publication
    July, 2014
    Zimbabwe

    Miombo woodlands in Southern Africa are experiencing accelerated changes due to natural and anthropogenic disturbances. In order to formulate sustainable woodland management strategies in the Miombo ecosystem, timely and up-to-date land cover information is required. Recent advances in remote sensing technology have improved land cover mapping in tropical evergreen ecosystems. However, woodland cover mapping remains a challenge in the Miombo ecosystem.

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