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Landfills (dumps) are places where the end of the life cycle of products can be found - useful material is dumped away from the sight creating contaminant flows around. Another problem is huge unexplored potential of resources recycling - we have limited knowledge also on useful elements and materials that are buried. The solution to overcome the limitations that provide remote sensing and traditional geodesy, proximal sensing techniques could be used. ?Near surface geophysics? with operation at or just below the ...

The river is the consequential landscape ? forming element as it is rinsing and transporting the weakest rocks, scraping the bed and accumulating the sediment. During these processes in the river, diverse ecosystems are forming in various areas that provide habitats for a wide range of plant and animal species. In almost every river there is occurring a natural process as erosion. River erosion assessment should be considered in river management and included in management measures, as erosion can be determining fa...

The growing demand for bio-based products worldwide provides opportunity for Central and Eastern European countries to increase agricultural and wood production. Nevertheless, increase in bio-based production is restricted by emission reduction targets set by climate policies. Meanwhile, the changes in Common Agricultural Policy after 2020 offer each Member State to develop targeted and regional specific policies to meet socio-economic and environmental targets at national scale. Sustainable land management requir...

Anthropogenic activities disrupt hydrological regime (e.g. lake water level, river flow), and water quality changes due to pollution and affect ecosystems by disrupting the cycles of substances and water cycle. The composition of natural surface waters can be altered for a many reasons, for instance climatic, geographic as well as anthropogenic. Agriculture depends on a use of fertilizers, a use of pesticides, and a transport which turn agricultural land into a nonpoint source of surface water pollution. The agglo...

Majority of world inhabitants are living in cities as well as many inhabitants in Latvia choose to move to cities to look for wellfare. Living in a city with a high density of buildings, cars, and factories, the risk of air pollution increases. Air pollution from the transport, industry, and energy sectors affect the health of the urban population. In cities, air is often contaminated with dust containing various chemical elements, including heavy metals, which, even in low concentrations, can be hazardous to huma...

Nitrous oxide N2O is one of the major contributors to global warming and ozone depletion in the stratosphere. Management of agricultural soils is the largest source of N2O emissions in agricultural sector, therefore simultaneous and accurate measurement of N2O concentration is necessary. Nitrous oxide emission is formed within nitrification and denitrification processes in agricultural soils. The agricultural sector is one of the largest sources of greenhouse gas emissions in Latvia as it accounted for 24.6 % of t...

As a result of increasing concentrations of total nitrogen and total phosphorus, surface water chemical pollution and eutrophication is a problem of raising concern worldwide. Chemical quality of surface water gives an impression about different geochemical, geological, hydrological and biological processes, as well as intensity of anthropogenic load in river catchment area. The total length of Svete River is 123 kilometres, of which 75 kilometres are in the territory of Latvia. Main part of river?s drainage basin...