Citation:

PANGAEA.977358 (DOI registration in progress)

Name: Nine years of monitoring ash dieback in the floodplain forest of Leipzig, Germany
Published: 2025-04-15
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Ash dieback disease; dieback; floodplain forest; Saxony; Tree vitality; Weiße Elster

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Published: 2025-04-15

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Abstract:

As part of the Lebendige Luppe project, ash dieback disease was recorded on European ash trees (Fraxinus excelsior, trunks >5cm breast height diameter) on 60 plots (each 2500m²) in the late summers of 2016 to 2024. The trees were assessed according to Langer et al. (2015). However, an additional category 6 (dead tree) was introduced to distinguish between dead and dying trees. The selection of trees (according to their size) was based on 2 forest inventories (2016 and 2020) (Rieland et al. 2024, Scholz et al. 2022). As a result, new trees were added for recording in 2021.

From 2020, the additional parameter Tree damage class, ash bark beetle was introduced to assess the damage caused by the ash bark beetle in 4 categories. From 2023, an additional parameter Tree damage class, ash dieback crown was introduced, which based on Lenz et al. (2012) and indicates the damage in the crown of the tree. This classification was added because, unlike the Langer et al. (2015) classification, it describes the damage class independently of the beetle infestation. A comparison of the different damage classifications enables a better description of the damage pattern. A more detailed description of the three parameters used (Tree damage class, ash dieback; Tree damage class, ash bark beetle and Tree damage class, ash dieback crown) is provided in the dataset comment.

Keyword(s):

Ash dieback disease; dieback; floodplain forest; Saxony; Tree vitality; Weiße Elster

Related to:

Langer, Gitta Jutta; Harriehausen, Udo; Bressem, Ulrich (2015): Eschentriebsterben und Folgeerscheinungen (Ash dieback and after-effects). 22-28, https://www.researchgate.net/publication/284154507_Eschentriebsterben_und_Folgeerscheinungen_Ash_dieback_and_after-effects

Lenz, Heike; Straßer, Ludwig; Baumann, Martin; Baier, Ulf (2012): Boniturschlüssel zur Einstufung der Vitalität von Alteschen. 18-19, bonitur_von_alteschen.pdf

Rieland, Georg; Scholz, Mathias; Engelmann, Rolf A; Hartmann, Timo; Hecht, Christian; Henkel, Stefanie; Kasperidus, Hans D; Pruschitzki, Ullrich; Wirth, Christian; Seele-Dilbat, Carolin (2024): Tree inventory dataset of floodplain forest, Leipzig, Germany [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968663

Scholz, Mathias; Seele-Dilbat, Carolin; Engelmann, Rolf A; Kasperidus, Hans D; Kirsten, Fabian; Herkelrath-Bleyl, A; Vieweg, Michael (2022): Die Elster‐Luppe‐Aue – eine wertvolle Auenlandschaft. Ergebnisse der wissenschaftlichen Begleitung aus dem Projekt Lebendige Luppe. Helmholtz-Zentrum für Umweltforschung GmbH - UFZ, https://doi.org/10.57699/RXX9-ZH02

Project(s):

Lebendige Luppe (LUPPE)

Coverage:

Median Latitude: 51.372461 * Median Longitude: 12.264058 * South-bound Latitude: 51.348931 * West-bound Longitude: 12.192318 * North-bound Latitude: 51.388276 * East-bound Longitude: 12.330728

Date/Time Start: 2016-01-01T00:00:00 * Date/Time End: 2025-01-01T00:00:00

Minimum ELEVATION: 93.503 m a.s.l. * Maximum ELEVATION: 105.212 m a.s.l.

Event(s):

Lebendige_Luppe_2016-2024 * Latitude: 51.372461 * Longitude: 12.264058 * Date/Time Start: 2016-01-01T00:00:00 * Date/Time End: 2025-01-01T00:00:00

Comment:

Tree damage class, ash dieback:

0 - no beetle infestation, full foliage, vital ash, without symptoms of

ash dieback disease in the crown area;

1 = crown with reduced foliage, no beetle infestation on the trunk, no

typical shoot damage visible;

2 = no infestation by bark-breeding beetles, crown with sparse foliage;

3 = numerous dead branches and typical ash dieback disease symptoms in

the crown area: browned young shoot tips, isolated attempts to drill

holes by bark brooders, beginning establishment of secondary pathogens

(e.g. rhizomorphs [strands of hyphae] of honey fungus or velvety root

rot visible on emerging roots);

4 = stronger leafy branches partly already dry on one side, only

residual crown left, beginning infestation by bark-breeding beetles

(e.g. small colourful and large black ash bark beetle), Visible

infestation with wood-degrading weakness parasites (e.g. honey fungus);

5 = crown without foliage; in the trunk area partly still isolated

emergency shoots, heavy infestation with bark-breeding beetles in the

crown, but also starting at the trunk, wood rot (white, brown or mould

rot) at the base of the trunk and in the root area;

6 = dead tree

Tree damage class, ash bark beetle (Damage class induced by ash bark beetle (Hylesinus oleiperda, Leperisinus varius, Hylesinus crenatus):

0 = no evidence of bugs

1 = few small entrance holes

2 = many entrance holes but no other symptoms are visible like bark losses

3 = many large and small entrance holes, bark losses, tree is heavily damaged by beetle infestation

Tree damage class, ash dieback crown (Damage class of the tree crown):

0 = healthy crown, 0-10% defoliation

1 = Dead shoot tips on the outer crown, 11-30% defoliation

2 = Branching structures visible on the dead shoot tips,transparency of the crown possible, 31-50% defoliation

3 = Formation of secondary crown, single strong branches broken off, 51-80% defoliation

4 = only residual crown visible, defoliation 81-99%

5 = dead tree, 100% defoliation

Tree, status:

Describes whether the tree is living (tree) or dead (dw). Where possible, dw was described more finely than lying deadwood (ldw) or standing deadwood (sdw).

Parameter(s):

#	Name	Short Name	Unit	Comment
1	Sample ID	Sample ID
2	Tree ID	Tree ID
3	Year of sampling	Year sampl
4	LATITUDE	Latitude		Geocode
5	LONGITUDE	Longitude		Geocode
6	ELEVATION	Elevation	m a.s.l.	Geocode
7	Plot	Plot
8	Tree damage class, ash dieback	Tree dam ash die		damage class ash dieback
9	Tree damage class, ash bark beetle	Tree dam ash bark		damage class induced by bugs
10	Tree damage class, ash dieback crown	Tree dam ash crown		damage class of the tree crown
11	Tree, status	Tree status

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

62539 data points

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