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Showing items 1 through 9 of 15.
  1. Library Resource
    January, 1995
    Namibia, Sub-Saharan Africa

    Results from this study show that the over-used but under-researched association between grazing and land degradation in the Kalahari has been oversimplified. In typical Kalahari conditions, the ecological changes that have been brought about by grazing cannot be linked with more fundamental changes in ecosystem function. Basic soil processes appear relatively unaffected by grazing pressure outside the sacrifice zone, and there is no evidence to suggest that the resilience of the system has been affected through soil degradation.

  2. Library Resource
    January, 1995
    Israel, Western Asia, Northern Africa

    Paper explores the relationships between the following concepts under the conditions of Middle Eastern semi-arid ecosystems. Paper states that there are two apparent contradictions in the title of this paper. First, grazing by domestic livestock is often considered to be hostile to nature conservation, especially in semi-arid areas (the ongoing conflict between ranchers and environmentalists in western USA is just one contemporary example of this).

  3. Library Resource
    Conference Papers & Reports
    December, 1994

    This workshop was conceived in recognition of the fact that, over the years, a great deal of research has been conducted on trypanotolerance. With the advent of new and powerful means to identify markers and genes controlling traits of interest, and with the developments in animal breeding bringing greater speed in dissemination of desirable genotypes, there is increasing interest in trypanotolerance as a way forward in trypanosomiasis control.

  4. Library Resource
    Journal Articles & Books
    December, 1994
    Ethiopia, Africa, Eastern Africa

    This document is divided in eight chapters. The first chapter reviews rangelands and rangeland development in Ethiopia. The second chapter is an introduction to the Borana Plateau with ref. to natural resources and pastoral society. It reviews secondary information on geology and sociology, as well as original information on climate, soils, wildlife, plant ecology and water resources for the central Borana Plateau. Chapter three deals with vegetation dynamics and resource use.

  5. Library Resource
    Conference Papers & Reports
    December, 1994
    Africa, Western Africa

    This report is divided into seven sections. The first section deals with biology of Stylosanthes and its importance in West Africa and Latin America. The second section presents papers on the screening and evaluation of Stylosanthes germplasm. This includes genetic diversity, genetic resources, species screening, multi-locational testing and evaluation of accessions. The third part discusses the dynamics, nutrient requirements, and pests and diseases of Stylosanthes species. Section four looks at Stylosanthes-based pastures for livestock production.

  6. Library Resource
    Reports & Research
    December, 1994

    The authors started the discussion with the fundamental question: why are property rights important? The central hypothesis of this collaborative venture is that inappropriate property rights institutions lead to resource degradation. Two cases were distinguished: single-user resources and multiple-use resources. A good example of a single-user resource is land. Absence of secure property rights will result in land degradation, as incentives to improve the resource base do not exist under such conditions.

  7. Library Resource
    Conference Papers & Reports
    December, 1994

    Session one of this report highlights ILRAD's research programs and the modelling needs of ILRAD and FAO. Session two deals with vector and helminth population dynamics with particular reference to ticks, tsetse and helminth. Parasite transmission and host parasite interaction are discussed in sessions three and four respectively. These two sessions deal with theileria, trypanosomes and leishmania. Parasite variations and polymorphism is the topic of session five. Session six discusses the effect of disease control programs and session seven reviews modelling systems.

  8. Library Resource
    Conference Papers & Reports
    December, 1994

    Session one of this report highlights ILRAD's research programs and the modelling needs of ILRAD and FAO. Session two deals with vector and helminth population dynamics with particular reference to ticks, tsetse and helminth. Parasite transmission and host parasite interaction are discussed in sessions three and four respectively. These two sessions deal with theileria, trypanosomes and leishmania. Parasite variations and polymorphism is the topic of session five. Session six discusses the effect of disease control programs and session seven reviews modelling systems.

  9. Library Resource
    Conference Papers & Reports
    December, 1994

    This document summarises the major discussions, findings and recommendations of the conference convened by ILCA and its cosponsors to bring together national and international experts in livestock nutrition and management, ecology, agronomy, soil science and socio-economics to address fundamental issues of nutrient balances, agricultural productivity and the well being of the people, livestock and environment of sub-Saharan Africa.

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