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Issuesuso da terraLandLibrary Resource
There are 9, 789 content items of different types and languages related to uso da terra on the Land Portal.

uso da terra

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assessment of the effectiveness of a random forest classifier for land-cover classification

Journal Articles & Books
Dezembro, 2012
Espanha

Land cover monitoring using remotely sensed data requires robust classification methods which allow for the accurate mapping of complex land cover and land use categories. Random forest (RF) is a powerful machine learning classifier that is relatively unknown in land remote sensing and has not been evaluated thoroughly by the remote sensing community compared to more conventional pattern recognition techniques. Key advantages of RF include: their non-parametric nature; high classification accuracy; and capability to determine variable importance.

Spatial analysis and mapping of malaria risk in an endemic area, south of Iran: A GIS based decision making for planning of control

Journal Articles & Books
Dezembro, 2012
Irã

Bashagard district is one of the important malaria endemic areas in southern Iran. From this region a total of 16,199 indigenous cases have been reported in recent years. The aim of this study was to determine the situation of the disease and provide the risk map for the area. ArcGIS9.2 was used for mapping spatial distribution of malaria incidence. Hot spots were obtained using evidence-based weighting method for transmission risk.

Space use by resident and transient coyotes in an urban–rural landscape mosaic

Journal Articles & Books
Dezembro, 2015

Context Coyotes (Canis latrans) have adapted successfully to human landscape alteration in the past 150 years and in recent decades have successfully moved into urban areas. While this causes concern about human–wildlife conflicts, research also suggests that coyotes tend to avoid humans and human activity in urban areas. For improving management, a better understanding of space use by coyotes is needed. Aims To study how coyote social behaviour influences fine-scale space use in urban areas we present results from an extensive, multi-year GPS telemetry study (2005–13).

Climate change mitigation through afforestation/reforestation: A global analysis of hydrologic impacts with four case studies

Journal Articles & Books
Dezembro, 2008
Equador
Bolívia

The implicit hydrologic dimensions of international efforts to mitigate climate change, specifically potential impacts of the Clean Development Mechanism-Afforestation/Reforestation (CDM-AR) provisions of the Kyoto Protocol (KP) on global, regional and local water cycles, are examined. The global impact of the redistribution of water use driven by agriculture and land use change, of which CDM-AR can be a contributing factor, is a major component of ongoing global change and climate change processes.

APPLICATION ON GIS FOR LAND USE PLANNING IN CENTRAL PART OF ALBANIA, MAMINAS COMMUNE

Journal Articles & Books
Março, 2011

New developments in geographic information science and technology are changing the way we apply GIS to developing-world agriculture, creating new opportunities to utilize the technology to address problems of disaster management, climate change, land use change, land degradation, crop analysis and impact assessment.GIS allows data and demographic information to be presented graphically, primarily in maps, but also in business tools such as charts, graphs and other reports.

Declines in British-breeding populations of Afro-Palaearctic migrant birds are linked to bioclimatic wintering zone in Africa, possibly via constraints on arrival time advancement

Journal Articles & Books
Dezembro, 2012
África

Capsule The bioclimatic zone and habitat type within which birds winter are the most important determinants of population trends.Aims To investigate whether regional factors on wintering grounds, phenological mismatch, or habitat on breeding or wintering grounds show relationships with population changes of Afro-Palaearctic migrant birds.Methods We modelled breeding bird survey trends of 26 species of Afro-Palaearctic migrant birds that breed in Britain, and assessed the most important variables.

Modeling relationships between catchment attributes and river water quality in southern catchments of the Caspian Sea

Journal Articles & Books
Dezembro, 2015

Increasing land utilization through diverse forms of human activities, such as agriculture, forestry, urban growth, and industrial development, has led to negative impacts on the water quality of rivers. To find out how catchment attributes, such as land use, hydrologic soil groups, and lithology, can affect water quality variables (Ca²⁺, Mg²⁺, Na⁺, Cl⁻, HCO₃⁻, pH, TDS, EC, SAR), a spatio-statistical approach was applied to 23 catchments in southern basins of the Caspian Sea.

Determination of possibility of secondary use of lands contaminated by radionuclides in agricultural production

Policy Papers & Briefs
Dezembro, 2011
Bielorrússia

In the conditions of the Republic of Belarus there were presented results of development of a system of quantitative parameters, which characterized radiation safety and economic efficiency of agricultural reuse of lands which had been contaminated with radionuclides and had been withdrawn from agricultural production on evaluated lands. The parameters helped to base the possibility of use of a land plot in agricultural production according to its radiological, agronomical and technical characteristics and the distance between the plot and a potential land user.

Spatio-temporal responses of male Reeves's pheasants Syrmaticus reevesii to forest edges in the Dabie Mountains, central China

Journal Articles & Books
Dezembro, 2011
China

We evaluated the response of male Reeves's pheasants Syrmaticus reevesii to different forest edges in a fragmented forest landscape in central China using radio-telemetry. Our fieldwork was carried out from April 2000 to August 2003 in the Dongzhai National Nature Reserve within the Dabie Mountains, China. We identified four major types of forest edges: shrub, farmland, road and residential edge.

Seasonal nitrous oxide emissions from different land uses and their controlling factors in a tropical riparian ecosystem

Journal Articles & Books
Dezembro, 2012
Tailândia

An important ecological service provided by tropical riparian ecosystems is the mitigation of nutrient pollution (e.g. nitrate) from surrounding agricultural areas. However, a negative impact of this nutrient remediation may be that the ecozone also functions as a major emitter of nitrous oxide (N₂O). We hypothesized that the high inorganic nitrogen, organic carbon, and soil water content in tropical riparian ecosystems enhances N₂O production through rapid nitrification and denitrification processes.