Winfried Riek

Eberswalde University for Sustainable Development · Faculty of Forest and Environment

To cope with the challenges in forest management that are contemporarily caused by climate change, data on current chemical and physical soil properties are more and more necessary. For this purpose, we present a further amalgam of depth functions and SCORPAN modelling to provide data at arbitrary depth layers. In this concept, regionalisation is s...

An important component of the National Forest Soils Inventory (NFSI) is the investigation of inorganic and organic pollutants. Forests are able to filter out large quantities of these substances from the atmosphere and incorporate them into the soil for a long time. The aim of this study was the integrative evaluation of organic and inorganic pollu...

To develop measures to reduce the vulnerability of forests to drought, it is necessary to estimate specific water balances in sites and to estimate their development with climate change scenarios. We quantified the water balance of seven forest monitoring sites in northeast Germany for the historical time period 1961–2019, and for climate change pr...

Over the last 30 years, the impact of climate change in Berlin, Germany, has manifested in the form of reduced summer rainfall, elevated temperatures, and a notable rise in the frequency of days with temperatures surpassing 30°C. All of them are leading to a decreasing water supply and increasing risk of drought. Various field, laboratory, and nume...

Die Arbeitsanleitung der dritten Bodenzustandserhebung im Wald ist die methodische Grundlage der BZE III. Die Erhebung wird in den Jahren 2022-2024 an knapp 1900 Punkten in allen Bundesländern der Bundesrepublik Deutschland durchgeführt. Insgesamt werden über 300 Parameter im Gelände aus den Bereichen Boden, Waldernährung, Vegetation und Waldwac...

The partitioning of bulk precipitation (PR) in forest ecosystems and its chemical composition depends on both meteorological factors, such as precipitation amount and intensity, evaporation rate, and wind speed, and stand structural factors, such as stand density, canopy structure, bark texture, and spatiotemporal distribution and density of foliag...

Der Vergleich der beiden jüngsten Klimanormalperioden (1961-1990, 1991-2020) dokumentiert für die brandenburgische Waldfläche eine deutliche Zunahme der sommerlichen Trockenheit. Besonders sind hiervon die für die Rotbuche bislang als am geeignetsten eingestuften Wuchsgebiete im Norden Brandenburgs betroffen. Für typische Buchenstandorte der Stando...

Nowadays regional data on forest soil properties are increasingly demanded for various questions concerning forest management practices like tree species selection, liming, harvest intensity or the detection of risk areas. Thus data related to climate change and its site specific drought effects on one hand and current soil nutrient status on the o...

Forest Soil Condition of the State of Brandenburg (Germany)

The soil database covers data about forest site conditions and detailed soil physical data of characteristic soil profiles for the National Forest Inventory (NFI) plots in Germany. It can be used for modelling forest growth depending on soil as well as calculating water or air capacity of soils. The NFI is used for policy advice and increasingly fo...

Der regionale Klimawandel im nordostdeutschen Tiefland führt zu grundlegenden Veränderungen der forstlichen Standortsbedingungen. Dieses signalisieren sowohl flächenbezogene Auswertungen zum Wasser- und Wärmehaushalt unter Verwendung von Modelldaten aus Klimaszenarien als auch Berechnungen zu den ökosystemaren Wasserhaushaltskennwerten von Level II...

Der hier vorliegende Band 2 des Waldbodenberichtes Brandenburg schließt sich an den im Dezember 2015 erschienenen Band 1 an. Die Gliederung dieses zweiten Bandes (Kap.6-10) setzt formal die Gliederung des ersten Bandes (Kap.1-5) fort. Inhaltliche Wiederholungen zu Band 1 wurden vermieden. So waren generelle Ausführungen zur Bedeutung der Bundesweit...

Für den Pflanzenbau ist die natürliche Bodenfruchtbarkeit von besonderer Bedeutung. Sie ist als eine äußerst knappe, nur bedingt erneuerbare Ressource zu erhalten und zu schützen. Mit einer kapital- und ressourcenintensiven Landbewirtschaftung und modernen Bewirtschaftungsmethoden lassen sich zwar kurzfristig auch unabhängig von der natürlichen Bod...

Spatial patterns in biotic reactions of forest trees (secondary growth, defoliation, nutrition) in Germany and their associations with conditions and changes in forest soils and with other environmental variables were investigated. The study aimed to identify areas at risk and risk factors. Growth ring widths and defoliation indicated drought stres...

Conclusions about the current nutritional status of trees can be derived based on contents of elements in leaves and needles. This information can also be used as an indicator of the exposure of forest ecosystems to atmospheric pollutants. Chemical foliar analyses are a significant component of the National Forest Soil Inventory in Germany. In this...

Forest soils play an important role in the active carbon (C) cycle of terrestrial ecosystems as they store one third of the global organic carbon. Therefore, the sequestration of atmospheric carbon in soils as stable organic matter is discussed as a potential contribution to mitigate atmospheric CO2 concentrations. The carbon dynamic in forest ecos...

Many forest soils are sensitive to acidification due to input of acids from the atmosphere. As acidic deposition was strongly reduced during the last decades, the question arises, if indications of recovery from soil acidification are detectable in German forest soils. The comparison of the National Forest Soil Inventory II (NFSI II) with the NFSI...

Für verschiedene Kombinationen aus Bodenausgangssubstraten und Bodenhorizonten (Substrat-Horizont-Gruppen) werden Kennwerte des Wasser- und Lufthaushaltes für Böden aus Lockergesteinen abgeleitet. Grundlage der hierzu durchgeführten statistischen Analysen bildet der von Dehner et al. (2015) beschriebene bodenphysikalische Datenbestand der Geologisc...

Die regelmäßig durchgeführte bundesweite Bodenzustandserhebung im Wald (BZE) mit 322 Inventurpunkten im Land Brandenburg und einer Erhebungsperiode von circa 15 Jahren liefert Daten und Informationen für die nachhaltige Waldnutzung. Sie ist geeignet, Risikopotenziale für die Waldbewirtschaftung frühzeitig zu erkennen und somit adäquate Handlungsopt...

The goal of the National Forest Soil Inventory is to provide a periodic overview on the spatial and temporal variation of forest soil condition. With regard to the anthropogenic and natural influencing factors the intensive monitoring sites of the Level II-program serve to gain a better understanding of the relevant cause-effect relationships. By t...

In der vorliegenden Arbeit wurden die Forstlichen Wuchsbezirke Brandenburgs (n = 91) auf der Grundlage von umfassenden Kennwerten des Wasser-, Wärme- und Nährstoffhaushalts mit Hilfe der Clusteranalyse zu homogenen Gruppen zusammengefasst und diese anhand ihrer mittleren Merkmalsausprägungen und räumlichen Lage beschrieben. Als Datengrundlage fungi...

To fulfill commitments under Article 3.4 of the Kyoto Protocol, the carbon (C) sequestration in soils can be used to offset greenhouse gas emissions. The amount of C stored in forest soils however, is dependent on soil properties, climate and anthropogenic activities. Effects of site quality (texture, pH, and cation exchange capacity), forest stand...

Die in der forstlichen Standortserkundung im nordostdeutschen Tiefland gängigen sogenannten Zustands- und Stammnährkraftstufen werden für die brandenburgischen Inventurpunkte der Bodenzustandserhebung im Wald (BZE) abgeleitet. Der Vergleich von Erst- und Zweitinventur (1992–93 bzw. 2007/2009) zeigt eine deutliche Zunahme von „harmonischen Relatione...

Regionalization of the impact of climate change is a great challenge for forest administrations and forest enterprises in Germany. For many regions there is evidence that the vulnerability of forest ecosystems will increase due to increasing temperature, drought, and the frequency of extreme events. In a regional model for the German federal state...

Der Artikel enthält folgende Kapitel: Waldschäden: Symptome und mögliche Ursachen Forstliches Umweltmonitoring Übergreifende Auswertungen auf den verschiedenen Monitoringebenen Zusammenfassung und Schlussfolgerungen Zitierte Literatur Glossar Abkürzungen

Die Bodenversauerung durch Luftschadstoffe war ein wesentlicher Auslöser für die Durchführung der ersten bundesweiten Bodenzustandserhebung im Wald. Die zweite Bodenzustandserhebung ermöglicht nun erstmals eine Überprüfung, ob die eingeleiteten Maßnahmen gegen eine weitere Versauerung, wie die Reduktion der Luftschadstoffemissionen, Bodenschutzkalk...

Ergänzend zu den Untersuchungen des Bodenzustandes wurden an allen BZE-Punkten chemische Nadel-/Blattanalysen zur Ernährungsdiagnose der Hauptbaumarten durchgeführt. Sie bilden einen wesentlichen Baustein für die umfassende Waldzustandsdiagnose und leisten einen wichtigen Beitrag zur Interpretation der stofflichen Veränderungen in den untersuchten...

Validation of regionalized soil information of forest soils by examining site specific growth performance of Scots pine in Brandenburg. Extensive soil and site information exist for the inventory plots of the national forest inventory (2002) in the federal state of Brandenburg. That information originates firstly from the forest soil condition inve...

Extensive soil and site information exist for the inventory plots of the national forest inventory (2002) in the federal state of Brandenburg. That information originates firstly from the forest soil condition inventory (BZE) and, secondly, from a determined regionalization approach. After connection of soil and stock data at the inventory plots, s...

The goal of this study was to estimate the need for forest liming in Mecklenburg-Vorpommern (Germany). As "reinventing the wheel" is usually pointless, seven already existing guidelines from other German regions were used. The study was based on inventory data of the national forest soil inventory program (BZE-2). The frequencies of potential sites...

The goal of this study was to estimate the need for forest liming in Mecklenburg-Vorpommern (Germany). As "reinventing the wheel" is usually pointless, seven already existing guidelines from other German regions were used. The study was based on inventory data of the national forest soil inventory program (BZE-2). The frequencies of potential sites...

In the course of global climate change expected modifications in heat balance will likely have a huge impact on the development and stability of Brandenburgian forest ecosystems. In this paper risk areas are statistically identified and regionalized. Furthermore, areas which are suitable for an ecological based climate impact monitoring are determi...

In the course of global climate change expected modifications in heat balance will likely have a huge impact on the development and stability of Brandenburgian forest ecosystems. In this paper risk areas are statistically identified and regionalized. Furthermore, areas which are suitable for an ecological based climate impact monitoring are determi...

Between the first and second national forest soil inventory in the northeastern German lowlands a significant soil acidification took place with regionally varying intensity. It manifests itself in a reduced base saturation in the whole rooting zone. This applies to the base cations magnesium and calcium. For potassium, however, no significant chan...

Es wurde ein Ansatz zur Regionalisierung der bodenkundlichen Basiskennwerte Skelettanteil und Bodenart des Feinbodens für die Waldfläche Brandenburgs auf Grundlage der forstlichen Standortskarte entwickelt. Die Regionalisierung gliedert sich in drei aufeinander aufbauende Schritte: räumliche Disaggregierung in Gebieten mit unklarer Zuordnung der St...

Existing soil carbon inventories in EuropeDetectability of change from soil inventoriesAssessment of baseline carbon stocks in EuropePattern detection and predictors for carbon storage at landscape and continental scaleConclusions about soil carbon baselines and change detection in EuropeReferences

For the forest area of the state of Brandenburg the depth to shallow groundwater table was computed within areas of unconfined groundwater as difference between the groundwater level and the ground surface level. Special attention had been dedicated to the digital processing of the data in order to make the investigations comprehensible in a techni...

The depth to shallow groundwater tables in the forest areas of the state of Brandenburg was computed within areas of unconfined groundwater as the difference between the groundwater level and the ground-surface level. Special attention had been dedicated to the digital processing of the data in order to make the investigations technically comprehen...

In this paper a new approach for estimating continuous groundwater depths using forest site mapping data of the federal state of Brandenburg and digital elevation models is presented. The underlying idea of this approach is to combine the upper and lower limits of the mapping units (groundwater depth classes of special site types and site type grou...

The available water capacity (AWC) of especially coarse-textured forest soils of the federal state of Brandenburg – estimated by various pedotransfer functions (PTF) – induce huge systematic differences. Thus further validations of the PTF seem to be necessary. The PTF were evaluated, using a dataset of overall 489 forest soil horizons of the north...