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Showing items 1 through 9 of 15.
  1. Library Resource
    Journal Articles & Books
    December, 2007
    Kenya

    Most early alley cropping studies in semi-arid Kenya were on fairly flat land while there is an increase in cultivated sloping land. The effectiveness of aging contour hedgerows and grass strips for erosion control on an about 15% slope of an Alfisol was compared. The five treatments were Senna siamea hedgerows with tree prunings applied as mulch to crops (H + M), hedgerows with crops with prunings removed (H), mulch only applied to crops (M), crops with Panicum maximum grass strips (G), and a sole crop control of a rotation of maize (Zea mays) and cowpea (Vigna unguiculata).

  2. Library Resource
    Journal Articles & Books
    December, 2013
    Ethiopia

    Soil loss, nutrient depletion and land degradation contribute to the skimpy performance of smallholder agriculture and pose serious policy challenges in developing countries. Surprisingly, natural resource management practices that enhance sustainability while improving productivity have not been fully adopted despite continuous efforts of promotion.

  3. Library Resource
    Journal Articles & Books
    December, 2013
    Ethiopia

    The use of co-investment activities to motivate farmers to carry out sustainable land management is increasingly recognized. Several co-investment efforts have been implemented to combat land degradation and increase agricultural production in the Ethiopian highlands. Nevertheless, these co-investment activities have not been documented. Moreover, the impacts of these activities have not been evaluated. This study presents a co-investment initiative for sustainable land management in the Galessa watershed in Ethiopia.

  4. Library Resource
    Journal Articles & Books
    December, 2012
    Africa

    People in southern Africa are facing escalating levels of risk, uncertainty and consequently vulnerability as a result of multiple interacting stressors, including HIV/AIDS, poverty, food insecurity, weak governance, climate change and land degradation, to name but a few. Vulnerability or livelihood insecurity emerges when poor people as individuals or social units have to face harmful threats or shocks with inadequate capacity to respond effectively. In such situations, people often have no choice but to turn to their immediate environment for support.

  5. Library Resource
    Journal Articles & Books
    December, 2013
    Ethiopia

    In the semi-arid tropics, communal grazing lands provide a livelihood for millions of people. However, it is highly threatened by overgrazing and continuous land degradation and, as a result, proper management is important to improve the livelihood of the people. This study investigated the effectiveness of exclosures established on communal grazing lands to restore soil properties and identified the relationship among soil properties, site and vegetation characteristics, and exclosure age.

  6. Library Resource
    Journal Articles & Books
    December, 2015
    Niger, Global

    Whether aggravated agricultural drought in the Sahel is related to a changing climate (meteorological drought, i.e., deficit of rainfall or unfavourable rainfall distribution) or to land use and land degradation (soil-water drought, i.e., decreased water infilitration and water holding capacity) is a much-debated issue.

  7. Library Resource
    Journal Articles & Books
    December, 2014
    Africa

    Internationally, there is interest in increasing the trade in ‘green’ market products, such as organic, fair trade, reduction of deforestation and forest degradation/reduction of deforestation and forest degradation+ for reduced deforestation and mitigation of climate change, and environmental goods and services. This crucially needs to be extended to the many poor, hungry and marginalized smallholder farmers in developing countries.

  8. Library Resource
    Journal Articles & Books
    December, 2011
    Nigeria

    Southwestern Nigeria is replete with soils that have high gravel contents within the subsoils. Most of these soils are being opened up for cultivation as other land uses (roads and housing) are competing for agricultural lands. It is imperative that these soils be properly studied and managed to prevent serious land degradation, which may over the long term militate against food production in most rural communities.

  9. Library Resource
    Journal Articles & Books
    December, 2015
    South Africa, Southern Africa

    Land degradation in the Little Karoo is extensive. Overstocking of breeding ostriches on natural veld has been among the main causes of this. The National Department of Agriculture has set a general stocking rate of 60 ha LSU ⁻¹ as a guideline for livestock on natural veld in the Little Karoo, which equates to 22.8 ha ostrich ⁻¹.

  10. Library Resource
    Journal Articles & Books
    December, 2011
    Kenya, Africa

    In sub-Saharan Africa, natural vegetation is being transformed into agricultural lands at a fast rate, endangering ecosystem services and increasing soil-loss potential, which may trigger land degradation. For the Taita Hills study area in Kenya, multi-temporal land-cover models of 1987, 1999 and 2003, derived from Satellite Pour l'Observation de la Terre (SPOT) imagery using a multi-scale segmentation/object relationship modelling (MSS/ORM) methodology and a rainfall layer, a digital elevation model (DEM) and a digital soil map were applied to model potential soil loss.

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