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Showing items 1 through 9 of 873.
  1. Library Resource
    Journal Articles & Books
    December, 2017
    Ethiopia

    Soil erosion is a very critical form of land degradation resulting in the loss of soil nutrients and downstream sedimentation of water storages in the highlands of Ethiopia. As it is technically and financially impossible to conserve all landscapes affected by erosion, identification of priority areas of intervention is necessary. Spatially distributed erosion models can help map landscape susceptibility to erosion and identify high erosion risk areas.

  2. Library Resource
    Journal Articles & Books
    December, 2017

    Study region : In this study, 33 catchments across the Lower Mekong Basin in Southeast Asia are examined to detect historical changes in their hydrological response via a model-based methodology.Study focus : Intensive development over the past half century across Southeast Asia’s Lower Mekong Basin has inevitably affected natural resources. Large areas have been converted from forests for subsistence and commercial agriculture, and urban development. We implement an innovative approach to screen hydrologic data for detecting impacts of such large-scale changes on hydrological response.

  3. Library Resource
    Journal Articles & Books
    December, 2017
    Ethiopia

    Although Ethiopia has abundant land for irrigation, only a fraction of its potential land is being utilized. This study evaluates suitability of lands for irrigation using groundwater in Ethiopia using GIS-based Multi-Criteria Evaluation (MCE) techniques in order to enhance the country's agricultural industry. Key factors that significantly affect irrigation suitability evaluated in this study include physical land features (land use, soil, and slope), climate (rainfall and evapotranspiration), and market access (proximity to roads and access to market).

  4. Library Resource
    Journal Articles & Books
    December, 2017
    Ghana

    Increasing climate variability and challenge in access to water pose major impediments to rainfed agricultural productivity. Extensive flooding of agricultural lands during the rainy season and lack of water during the 8-month long dry season affect the livelihood of the people in the northern Ghana, a situation that calls for better water management practices. The use of aquifer storage and recharge (ASR) based technique, helps to reduce flooding and improve access to water during the dry season; however such technology has specific requirements for successful implementation.

  5. Library Resource
    Journal Articles & Books
    December, 2017
    Russia

    The major natural factors negatively impacting the properties of solonetzes of the northern forest-steppe of Baraba Steppe were found and stability of the meliorandscapes of the steppe including reclaimed solonetzes was defined. The field research was done in 2006-2016. Cortical hydromorphic solonetzes, reclaimed by gypsum in 1986 in four replications, were studied. The following variants of the experiment were compared: control (without gypsum), 11, 45 and 65 t/ha. Till 1996 cereal crop rotation was cultivated, and in 1996 meliolandscape was abandoned.

  6. Library Resource
    Journal Articles & Books
    December, 2017

    The aim of this study is to examine the changes in soil development and water-resistant aggregate stability on the same parent material, but with different slopes, land cover and land use under semihumid climatic conditions. It was carried out on the soil formed on the basaltic parent material in different topographical positions within the Dağköy area of Engiz Country, which is located at the south of the Samsun-Bafra Highway. In this context, six soil profiles were selected on north and south transect direction and examined.

  7. Library Resource
    Journal Articles & Books
    December, 2017
    Serbia

    It is widely known that ecological and socioeconomic functions of the land are the basis for social and economic well-being. Despite this fact, land is still a relatively neglected natural resource, which can be concluded by analyzing the pressures on the land and the lack of systematic monitoring, which involves considering the situation and defining the program for its protection.

  8. Library Resource
    Journal Articles & Books
    July, 2017
    Japan

    In this study, we compared pixel-based image analysis and object-based image analysis (OBIA) as methods of land cover classification of urban areas, using high resolution digital aerial photography. The study area was Setagaya Ward, Tokyo, Japan, and we carried out supervised classification using aerial photographs with 25-cm spatial resolution, and with both visible bands and a near infrared band. The overall accuracy of the object-based classification was approximately 6 to 20 percentage points higher than that of the pixel-based classification.

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