Chemical analyses are an essential part of forest ecosystem monitoring activities. Harmonized, well-defined, and documented analytical methods are an important part of a laboratory Quality Control program and are essential to maximize spatial and temporal comparability of monitoring data. Different quality and data consistency checks, plausible ranges for analytical results, use of reference materials, and control charts are described for internal laboratory Quality Control. On the other side, coordinated ring tests among participating laboratories are an integral part of external Quality Control. Organization of ring tests, evaluation, and the benchmark with tolerable limits are described and specified. Results for water, foliage, and soil ring tests and the evaluation of quality indicators within the European forest ecosystem monitoring program are reported.
Chemical content of soil solution is varying in time and space and is dependent on the sampling and measurement techniques in use. It is a valuable indicator for effects of stress factors on both forests and the surrounding water ecosystems. A continuous standardized methodology for soil solution collection and analysis is of ultimate importance. Methods for harmonized collection and analysis of soil solution on a Europe-wide scale are presented with a special emphasis on sampling and measurement techniques, Quality Assurance, and laboratory analyses. Results based on data produced by the harmonized soil solution monitoring under ICP Forests are presented. They show regular exceedances of critical limits for nitrogen concentrations in soil solution on the majority of the examined sites.
Chemical analyses are an essential part of forest ecosystem monitoring activities. Harmonized, well-defined, and documented analytical methods are an important part of a laboratory Quality Control program and are essential to maximize spatial and temporal comparability of monitoring data. Different quality and data consistency checks, plausible ranges for analytical results, use of reference materials, and control charts are described for internal laboratory Quality Control. On the other side, coordinated ring tests among participating laboratories are an integral part of external Quality Control. Organization of ring tests, evaluation, and the benchmark with tolerable limits are described and specified. Results for water, foliage, and soil ring tests and the evaluation of quality indicators within the European forest ecosystem monitoring program are reported.
Chemical content of soil solution is varying in time and space and is dependent on the sampling and measurement techniques in use. It is a valuable indicator for effects of stress factors on both forests and the surrounding water ecosystems. A continuous standardized methodology for soil solution collection and analysis is of ultimate importance. Methods for harmonized collection and analysis of soil solution on a Europe-wide scale are presented with a special emphasis on sampling and measurement techniques, Quality Assurance, and laboratory analyses. Results based on data produced by the harmonized soil solution monitoring under ICP Forests are presented. They show regular exceedances of critical limits for nitrogen concentrations in soil solution on the majority of the examined sites.
The querelle des anciens et des modernes - the question whether writers should imitate the classics or use literary forms which seemed more suited to their own era - had been debated in Europe since the earliest days of the Renaissance. This book analyses the development of the querelle following the adoption of the argument of the modernist faction of seventeenth-century France.
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