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Improvement of geoinformation technologies on the basis of spatial data

Multimedia
декабря, 2017
Kazakhstan
Latvia

Land management and improvement of computer technologies in land use are one of the most important tasks of the state; their effective implementation is closely linked to the widespread implementation of modern achievements of information technology. The achievement of the maximum transparency of the processes is vital in the field of geo-information and spatial data resources during increasing the reliability and manageability of the infrastructure.

The advanced ways of reclamation in solving the problem of irrigated land degradation (on the example of Saratov region)

Journal Articles & Books
декабря, 2017
Russia

The aim of research was to study the advanced reclamation techniques to deal with the irrigated land degradation (the rise of the groundwater, resalting, dehumification, etc.). Research was undertaken in some farms in the dry steppe zone of Saratov Trans–Volga region. The object of research was degrated (hydrogenic, solonized, saline, fractured) irrigated dark chestnut soils. The prediction of water–salt regimes on the basis of mathematical modeling of moisture and salt transfer in soils of aeration zone was carried out.

Assessing potential land suitable for surface irrigation using groundwater in Ethiopia

Journal Articles & Books
декабря, 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).

Determining the Frequency of Dry Lake Bed Formation in Semi-Arid Mongolia From Satellite Data

Peer-reviewed publication
декабря, 2017
Global

In the Mongolian Plateau, the desert steppe, mountains, and dry lake bed surfaces may affect the process of dust storm emissions. Among these three surface types, dry lake beds are considered to contribute a substantial amount of global dust emissions and to be responsible for “hot spots” of dust outbreaks. The land cover types in the study area were broadly divided into three types, namely desert steppe, mountains, and dry lake beds, by a classification based on Normalized Difference Water Index (NDWI) calculated from MODIS Terra satellite images, and Digital Elevation Model (DEM).

Monitoring Changes in Croplands Due to Water Stress in the Krishna River Basin Using Temporal Satellite Imagery

Peer-reviewed publication
декабря, 2017
India

Remote sensing-based assessments of large river basins such as the Krishna, which supplies water to many states in India, are useful for operationally monitoring agriculture, especially basins that are affected by abiotic stress. Moderate-Resolution Imaging Spectroradiometer (MODIS) time series products can be used to understand cropland changes at the basin level due to abiotic stresses, especially water scarcity.

Investigating the Diversity and Variability of Eastern Mediterranean Landscapes

Peer-reviewed publication
декабря, 2017
Jordan
Cyprus
Greece
Lebanon

The aim of the paper is to examine the variability of eastern Mediterranean landscapes using a common mapping framework relying on Landscape Character Mapping (LCM). LCM was adapted to the region’s specificities placing emphasis on the area’s coastal nature, landform variation, land use, in particular pastoral tradition, and settlement patterns, an important output of this study.

Large scale GIS mapping recommendation maps for solving land management issues

Multimedia
ноября, 2017
Ukraine
Latvia

The article shows results of compiling recommendation land use maps for land use and land resources management of the university experimental farm “Velykosnitynske”. Large-scale GIS mapping of experimental farms allows to improve land use and decision making, prepare recommendations to solve land management issues, planning of technology processes and efficient crop growing technology. Compiled recommendation maps are aimed to assist in rational land use planning and sustainable development of the territory.

Mapping Land Cover and Estimating the Grassland Structure in a Priority Area of the Chihuahuan Desert

Peer-reviewed publication
ноября, 2017
Northern America

A field characterization of the grassland vegetation structure, represented by the coverage of grass canopy (CGC) and the grass height, was carried out during three years (2009–2011) in a priority area for the conservation of grasslands of North America. Landsat Thematic Mapper (TM5) images were selected and the information of reflectance was obtained based on the geographical location of each field-sampling site.

Vegetation in Drylands: Effects on Wind Flow and Aeolian Sediment Transport

Peer-reviewed publication
сентября, 2017
Global

Drylands are characterised by patchy vegetation, erodible surfaces and erosive aeolian processes. Empirical and modelling studies have shown that vegetation elements provide drag on the overlying airflow, thus affecting wind velocity profiles and altering erosive dynamics on desert surfaces. However, these dynamics are significantly complicated by a variety of factors, including turbulence, and vegetation porosity and pliability effects. This has resulted in some uncertainty about the effect of vegetation on sediment transport in drylands.

Using Historical Maps within a GIS to Analyze Two Centuries of Rural Landscape Changes in Southern Italy

Peer-reviewed publication
сентября, 2017
Global

The current characteristics of a rural landscape may be better understood if suitable information related to its past is available. The availability of a Geographical Information System (GIS) can enable the analysis of landscape features in relation to several aspects, e.g., the evolution and mutual inter-relation among different ecosystems, the impact and sustainability of human activities, the visual characteristics of a landscape, etc.