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    FW-R-3: Humus reserves in forest soils

    The illustration FW-R-3 ’Humus reserves in forest soils’ indicates – for the period of 1992 to 2021 – in the shape of a line chart, the annual reserves of organic carbon in forest soils in tonnes per hectare. During the observation period, carbon reserves increased continuously and significantly from roughly 75 tonnes per hectare to 85 tonnes per hectare.

    … soils Tags forest Competence Centre on Climate Impacts and Adaptation monitoring report … … FW-R-3: Humus reserves in forest soils …

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    WW-I-5: Peak discharge values in watercourses

    The bar chart WW-I-5 ‘Peak discharge values in watercourses’ contains a biaxial diagram. The bar chart shows for the years 1961 to 2021 – separately for the hydrological winter half-year (1st November of the previous year to 30th April) and the hydrological summer half-year (1st May to 31st October) – on one hand the highest peak discharge at selected watercourse gauges as a multiple of MHQ.

    … in watercourses Tags Competence Centre on Climate Impacts and Adaptation monitoring report … … WW-I-5: Peak discharge values in watercourses …

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    WW-I-4: Floodwater

    The bar chart WW-I-4 ’Floodwater’ shows – for the years of 1961 to 2021 – the number of floodwater days in the hydrological winter half-year (1st November of the previous year to 30th April) and in the hydrological summer half-year (1st May to 31st October) respectively, prevailing in the river basins of the Danube, Elbe, Rhine, Eider and Weser. The structure of the indicator is characterised by individual flood events which typically influence several river basins.

    … Floodwater Tags Competence Centre on Climate Impacts and Adaptation monitoring report … … WW-I-4: Floodwater …

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    WW-I-1: Terrestrially stored water

    The line chart WW-I-1 ’Terrestrially stored water’ shows the deviations of the entire terrestrially stored water masses from the long-term mean for the months of the period 2002–2021 in millimetres. The time series is marked by distinct fluctuations. While there is still a tendency towards positive anomalies at the beginning of the 2000s, it is clear that in Germany, the terrestrially stored water masses have been decreasing substantially since the beginning of 2010.

    … stored water Tags Competence Centre on Climate Impacts and Adaptation monitoring report … WW-I-1: Terrestrially stored water …

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    GE-R-3: Information on pollen

    The illustration GE-R-3 ’Information on pollen’ contains a biaxial chart. The chart shows the number of subscribers to the pollen exposure risk index and the number of pollen diary users. The number of subscriptions to the pollen exposure risk index increased to roughly 19,000 from the year of 2008 to the middle of the 2010s. Up to 2014 only the Pollen app was included, from 2015 onwards the figures are summarised for subscriptions to the Pollen app and the ‘Husteblume’ app.

    … on pollen Tags Competence Centre on Climate Impacts and Adaptation monitoring report … … GE-R-3: Information on pollen …

  • DzU article from 26.03.2025 | Last changed: 01.04.2025

    Indicator: Environmentally friendly freight transport

    A graph shows the shares of rail and inland shipping in freight transport volume between 1999 and 2023. The share of rail transport first increased and then began to stagnate, while the share of inland shipping declined.

    … “GENESIS ONLINE' . Descriptions on the methods used are found in the quality reports of the Federal Statistical Office of Germany. Figures on road freight … “GENESIS ONLINE' . Descriptions on the methods used are found in the quality reports of the Federal Statistical Office of Germany. Figures on road freight …

  • DzU article from 18.11.2025 | Last changed: 18.11.2025

    Indicator: Species diversity and landscape quality

    A graph shows the development of the population of representative bird species for different landscapes and the development of an aggregate indicator for 1970, 1975 and from 1990 to 2023 in percent. The aggregate indicator decreases significantly from 214 in 1970 to 80 in 2013.

    … range. No statistically significant trend can be identified over the last ten reporting years (2013 to 2023). Achieving the target for the overall indicator by … range. No statistically significant trend can be identified over the last ten reporting years (2013 to 2023). Achieving the target for the overall indicator by …

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    BAU-I-3: Cooling degree days

    The line chart illustrated in BAU-I-3 ‘Cooling degree days’ shows the mean of cooling degree days for 1951 to 2017 in summer climate regions according to DIN-4108-2:2013-2 in Kelvin per day. The illustration differentiates between the summer climate regions A, B and C. All three lines show a significantly rising trend over the years with distinct high points in 2003 and 2018, albeit with distinct fluctuations from year to year.

    … degree days Tags Competence Centre on Climate Impacts and Adaptation monitoring report … … BAU-I-3: Cooling degree days …

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    FW-I-7: Forest condition

    A line graph shows the mean crown defoliation in percent for the total forest and the tree species spruce, pine, beech and oak for the period 1991 to 2017. For beech there is a significant increasing trend, for oak it is quadratically decreasing. There is no trend for the other tree species and the total forest.

    … kB) Tags forest Competence Centre on Climate Impacts and Adaptation monitoring report … A line graph shows the mean crown defoliation in percent for the total …