Issue/Heft 21 (2022)
© AFSV; Waldökologie, Landschaftsforschung und Naturschutz (Forest Ecology, Landscape Research and Nature Conservation) - Heft 21, 2022
>> Heftdeckel (pdf 1.4 M)
Impressum und Inhaltsverzeichnis
>> Impressum und Inhaltsangabe (pdf 1.0 M)
|Kombinierte Methoden aus Messung, Modellierung und Geländearbeit
KRONENBERG, R., THI LUONG, T., MÜLLER, M., ANDREAE, H., PETZOLD, R.: Die Bodenfeuchteampel – Ein webbasiertes Informationssystem für die tagaktuelle Bewertung der Wasserverfügbarkeit in Wäldern
(The Soil Moisture Traffic Light - A web-based information system for the daily assessment of water availability in forests)
Site-specific soil moisture information is important for a variety of forest ecological issues, forest assessments and decisions based on them. With global warming and the increased occurrence of periods of drought and heavy precipitation events, the demand for such spatially and temporally highresolution information is increasing. Existing systems such as the UFZ drought monitor or the DWD’s map of Germany for soil moisture meet requirements to a limited extent only, as the relationship between the effects to forest stands is inadequate. In forest ecology research and forest environmental monitoring, process-oriented and site-specific water balance models for evaluating the water balance have been established for a long time. So far, these models have been used successfully in retrospective case studies or for scenario analyzes. Application in real time and thus the full exploitation of the potential of such deterministic models has been restricted through technical limitations and insufficient data sets for parameterization. These deficits have now been remedied with the “Soil Moisture Traffic Light”. In our article we present this prototype of a web-based information system for the daily assessment of the water availability of forest stands. We describe the technical components, the parameterization of the continuously working water balance model LWFBrook90R as well as the graphical result presentation, which is offered in a simple and an expert mode. An outlook is given on potential technical developments.
>> Volltextversion (pdf 2.9 M; Heft 21-Aufsatz 2; Original paper; Language: Deutsch; urn:nbn:de:0041-afsv-02125)
|Nationalpark-Forschung (Schwerpunkt Biodiversität)
GÄRTNER S.M., DEL VAL ALFARO, E., BIRK, S., BERNAUER, T, BUSE, J., DREISER, C., JUNG, K., KRATZER, R., POPA, F., WECKESSER, M., FÖRSCHLER, M.I.: Prozessschutz im Nationalpark Schwarzwald – integratives Langzeitmonitoring der Biodiversitätsentwicklung
(Protecting natural processes in the Black Forest National Park – integrated long-term biodiversity monitoring)
National parks play an important role in protecting global biodiversity. The development and implementation of a biodiversity assessment program that enables the analysis and evaluation of biodiversity development under protection is a task of the national park administration. This paper presents the sampling design and assessment methods used for biodiversity monitoring in the Black Forest National Park. The sampling design used was based on the systematic sampling grid used by the previous landowners for forest inventory purposes, and the forest site classification map. In total there were 3,500 sampling points. These sampling points were stepwise reduced to 210 monitoring plots, which represent the different site gradients and strata distributed over the national park area. In the first step only those sampling points which did not represent extreme site conditions or open areas created and maintained by humans were included. Secondly, a minimum distance of 20 m to the nearest trail had to be considered. The remaining sampling points were stratified according to elevation zones, geological and pedological characteristics. Within these site strata as well as between the three assessment years the sampling points were assigned randomly. At each permanently marked sampling point a 400 m² circular monitoring plot was established and forest structure, individual trees, standing and down dead wood, root plates, and the fungi fruiting bodies were assessed. On selected individuals of all tree species epiphyte data was collected. On four subplots, nested within the monitoring plot, various aspects of the vegetation were assessed (i. e. species cover, abundance and tree seedling and sapling damage by species). At the center of each monitoring plot vertebrates and invertebrates were assessed using a variety of standardized methods. This monitoring program enables the analysis of the interactions between species groups and any changes over time. Additionally, the plot-based biodiversity monitoring will include the assessment of pedological and climatic characteristics that will all be integrated into a landscape level analysis using remote sensing methods to document interactional changes over time and space.
>> Volltextversion (pdf 2.8 M; Heft 21-Aufsatz 5; Original paper; Language: Deutsch; urn:nbn:de:0041-afsv-02153)
|Ökosystem-Renaturierung und nachhaltiges Management
ZERBE, S., MILLER, M.L., ASANIDZE, Z., ASANIDZE, I., MUMLADZE, L.: Local forest-related knowledge, perceptions, and perspectives as a basis for woodland restoration
(Waldbezogenes Wissen, Umweltwahrnehmung und Entwicklungsperspektiven als Grundlage für die Wiederherstellung von Waldökosystemen)
In mountain areas where livestock farming and overgrazing have led to deforestation and the decrease of forest ecosystem services for centuries, it is necessary to develop sustainable strategies to restore forest ecosystems. We here investigate the case study of Javakheti Highland in the Southern Caucasus (Georgia), which has been largely deforested by longlasting agricultural land use. We performed 87 interviews with local land-users and stakeholders in order to identify their knowledge on former and current forest use and to understand their perspectives for the future woodland development. Nearly all interviewees pointed out the importance of forest use in former times e.g., the collection of firewood and non-timber products such as berries, herbs, and mushrooms. Interviewees reported a wide range of purposes for the extraction of forest products e.g., food production and medical care with herbs. Accordingly, traditional forestrelated knowledge is still present today, but hardly activated as many people do not use forests anymore. The major constraints for current and future forest use are the limited total coverage of woodlands, the prohibition of forest-use, and the lack of community-based forest management. Therefore, environmental policies favoring forest restoration in Javakheti Highland should integrate the perception, requirements, and traditions of local people.
>> Volltextversion (pdf 2.2 M; Heft 21-Aufsatz 3; Original paper; Language: English; urn:nbn:de:0041-afsv-02139)
|Ökosystemrenaturierung und nachhaltiges Management
RADKE, S., LANGHEINRICH, U., GERSBERG, R.M., LÜDERITZ, V.: Reconnection and restoration of oxbow lakes – crucial factors for the success
( Wiederanbindung und Revitalisierung von Altwässern – entscheidende Faktoren für den Erfolg)
Many backwaters worldwide have been decoupled from the main rivers through hydraulic engineering measures and changes in use. As a result, oxbow lakes (OL) have become a threatened habitat. Numerous restoration projects are therefore aimed at permanently connecting OL to the rivers. According to widespread belief, the constant connection of backwaters on both sides is optimal for their ecological condition. In practice, such a permanent re-connection is not possible everywhere due to hydrological reasons and legal restrictions. Thus, we investigated 17 OL of the River Elbe with different degree of connection by means of multihabitat sampling for aquatic macroinvertebrates and electrofishing for freshwater fish, to find out what factors are most important for biodiversity and refuge function. We were able to show that the habitat function of OL for fish and aquatic macroinvertebrates does not primarily depend on the degree and duration of the flow. For alluvial and river fish species that use OL for their reproduction, it is much more important that there is a temporary connection so that the spawning habitats can be reached and left. A one-sided connection of OL is therefore sufficient. Aquatic macroinvertebrates (MI) of the floodplain use OL as their preferred habitat. The MI diversity depends primarily on the habitat richness. Desludging the water bodies has proven to be the preferred method to improve the habitat quality of OL in the fossil floodplain. Our investigations show that each water body has to be considered individually. Thus, adequate scientific pre- and post-processing is mandatory for restoration measures.
>> Volltextversion (pdf 3.2 M; Heft 21-Aufsatz 4; Original paper; Language: English; urn:nbn:de:0041-afsv-02148)
|Nachrichten aus der Arbeitsgemeinschaft (AFSV-News)
JÓŹWIAK, M., PANKA, C., PANKA, S., KONOPATZKY, A.: Eine Erinnerung an Prof. Dr. habil. Alojzy Kowalkowski * 26.11.1924 † 8.01.2020
>> Volltextversion (pdf 3.4 M; Heft 21-Aufsatz 1; Original paper; Language: Deutsch; urn:nbn:de:0041-afsv-02117)
Electronic Supplementary Material S1: Auswahl von Publikationen aus der Feder und mit Beteiligung von Prof. Dr. habil. Ing. Alojzy Kowalkowski: 28 S. (pdf 883 K)
|Nachrichten aus der Arbeitsgemeinschaft (AFSV-News)
KESSEL, N.: Buchbesprechung "Wörterbuch der Forstwirtschaft"
>> Volltextversion (pdf 820 KM)