s, new forest stand, and environmental assessment. Invented variables on permanent sampling plots include: position in the landscape, field vegetation, site conditions, soil sampling, assesment of soil characteristics, chemical analysis of soil in O-, B-, BC- and C-horizons.
National Environmental Monitoring Programme in Sweden. The objective is to follow the deposition of heavy metals over Sweden by the analyses of their concentration in two selected species of moss. The selected species are: Red-stemmed Feather-moss (Pleurozium schreberi) and Mountain Fern Moss (Hylocomnium splendens). Preferred specie: Red-stemmed Feather-moss (Pleurozium schreberi). Metals adsorbed by mosses almost exclusively come from the air and metal concentration in mosses are therefore seen as a proxy for metal deposition. Analysed elements are: Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, V, Zn (2015). The moss samples are taken from over 600 stands across Sweden.
Annual measurements of physical, chemical, and biological variables are taken in small to medium sized, mostly minimally disturbed lakes, situated across the country. Of the 108 lakes that are part of the Trend Station Lake monitoring programme, 20 are situated in AMAP area. The main aim of the monitoring programme is to document long-term changes related to global or regional change and human-generated stressors. To complement the Trend Station Lake monitoring programme, national lake surveys provide spatial data needed to determine regional patterns, and coupled with time-series data, changes in surface water quality. The National Lake Survey (the Surveillance Stations, re-sampled stations) programme for lake water quality, started in 2007 and results in data of all Swedish lake conditions. Each year some 800 new lakes are sampled to determine chemical and physical conditions; lakes are resampled at 6 year intevals. 4824 lakes are sampled in the country during a six-year sampling cycle, with 1270 situated in AMAP area. The variables included in the Trend Station Lake monitoring programme include water chemistry, fish, phytoplankton, macrophytes, zooplankton, and benthic invertebrates, whilst the National Lake Survey is focused solely on chemical and physical parameters.
National Environmental Monitoring Programme in Sweden. Measurements of persistant organic pollutants in air and precipitation are carried out at Råö, Hallahus, Aspvreten, and in Pallas (Northern Finland). The monitoring programme includes measurements of: polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB), some pesticides (HCH, DDT) and polybrominated diphenylethers (PBDE).
National Environmental Monitoring Programme in Sweden. The objective of the project is to follow time trends of available metals in vegetation and reindeer (Rangifer tarandus) in Lapland, Sweden. Analysed metals in liver and muscle samples are: Al, Cd, Co, Cr, Cu, Mg, Mn, Ni,Hg, Pb, Zn. Analyses were performed on a continuous basis until 2005. Since then there has only been a collection of samples to be stored in the Environmental Specimen Bank (ESB) at the Swedish Museum of Natural History (NRM).
Fluvial transport, its dynamics and structure, constitute a good indicator of the condition of the natural environment in various climatic zones. Analysis of fluvial transport components allows for precise determination of the rate and directions of transformations of geosystems of any importance. In the polar zone, very sensitive to global changes, it seems expedient to identify the mechanisms and structure of fluvial transport, particularly in the conditions of the observed glacier retreat, the main alimentation source of proglacial rivers. Studies carried out in the zone revealed difficulties in determination of fluvial transport structure, particularly the actual bedload of gravel-bed rivers based on direct measurements, resulting from: short measurement series, lack of standardization of research methods and measurement equipment, and strategy of selection of study objects and sampling. The research project presented concern