Search for dissertations about: "land degradation"

Showing result 1 - 5 of 90 swedish dissertations containing the words land degradation.

  1. 1. Does land degradation matter? : perspectives on environmental change in north-eastern Botswana

    University dissertation from Stockholm : Almqvist & Wiksell International

    Author : Peter Kinlund; Stockholms universitet.; [1996]

    Abstract : .... READ MORE

  2. 2. Land Degradation and Climate in Iceland - a spatial and temporal assessment

    University dissertation from Department of Physical Geography and Ecosystem Science, Lund University

    Author : Rannveig Olafsdottir; Lund University.; Lunds universitet.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spatial analysis; long-term analysis; Holocene; spatial simulations; Iceland; Geology; fysisk geografi; physical geography; Geologi; land cover; farmers perception; Land degradation;

    Abstract : Degradation of vegetation and soil erosion has contributed to loss of biological productivity and land degradation in Iceland. This thesis focuses on spatial and temporal patterns of land degradation in Iceland from a geographical perspective both along short and long timescales. READ MORE

  3. 3. Recent changes in land use and productivity in agro-pastoral Inner Mongolia, China

    University dissertation from Sara Brogaard, MICLU, Sölvegatan 10, 22362 Lund

    Author : Sara Brogaard; Lund University.; Lunds universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; geomorphology; Physical geography; China; Inner Mongolia; remote sensing; LUE model; primary production; GPP; yield variability; land degradation; farmers’ perception; productivity; Land use; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Abstract : This study challenges the prevailing assumption that the expansion of cultivated land areas and increasing number of livestock in the agro-pastoral regions of northern China have aggravated the process of land degradation since the start of the rural reforms in 1978. Land-use and productivity trends in the Inner Mongolia Autonomous Region (IMAR), with special attention to the Keerqin steppe region, have been analysed. READ MORE

  4. 4. Ecological rehabilitation of degraded hill slopes in southern Wello, Ethiopia

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Kebrom Tekle; Uppsala universitet.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Classification; hillside closures; intercept lengths; land cover; land degradation; local participation; natural regeneration; ordination; permanent plots; soil seed banks; succession; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; Ecological Botany; Ekologisk botanik;

    Abstract : Clearing of vegetation has left large areas of southern Wello (Ethiopia) at a high risk ofland degradation. In this study, the causes, extent and consequences of land degradationproblems are reviewed. To see land cover changes, aerial photographs from 1958 and1986 were compared with the help of a GIS procedure. READ MORE

  5. 5. Risk, Time and Land Management under Market Imperfections: Applications to Ethiopia

    University dissertation from Göteborg

    Author : Mahmud Yesuf; Göteborgs universitet.; Gothenburg University.; [2004]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; land degradation; market imperfections; transaction costs; soil conservation; fertilizer adoption; risk preference; time preference; experimental studies; Ethiopia;

    Abstract : This Ph.D. thesis addresses both theoretical and empirical issues pertaining to land management decisions of farm households in developing countries working under an imperfect market and institutional setting (with case studies from Ethiopia). READ MORE