NATURE PRESENTATION

Hanna Hamann

Forests in northern germany

1. Overview and Development of different Forests 2. forest Types in detail2.1. weichselian moraines 2.2. central sandy deposits 2.3. holocene marshes 3. Human Impact 4. Sources

Index

Section

Main landscape types

• weichselian moraines - east

• central sandy deposits - center

• holocene marshes - west

correlating main forest types

Overview

• woodruff beech forestst

• wood hairgrass beech forests

• hard- and softwood alluvial forests

• alder swamp forests

located on weichselian moraines

• main species red beech
• ca 35 m, dense tree crown
• rich ground vegetation, blooms very colourful in early spring
• deadwood is habitat for many animal species

woodruff beech forests

woodruff beech forests

central sandy deposits

crinkled hairgrass beech forests

• sandy, low pH soils

• red beech main species

• not much ground vegetation

crinkled hairgrass beech forests

softwooded

• flooded often
• wet for long time period
• lower and close to water level
• mainly populatet by willows

hardwooded

• flooded less frequently
• wet for shorter time period
• higher over water level
• mainly populatet by oaks, ash trees and elms

Alluvial woods

holocene marshes

• permanet high water levels
• only small fluctuation
• mainly populatet by alder trees, adjustet to wet habitats
• home for animals adapted to water

alder swamp forests

• large areas of beech forests replaced for wood production
• deadwood gets removed by forestry
• general loss of forest area

human impact

https://www.ecosia.org/images?q=waldmeister%20buchenwald#id=57B34C9C552F9E71C8325D383E660F7AA05880C9https://www.feuchtwaelder.de/lebensraum/auenwaelder/fauna/ https://www.ecosia.org/images?q=buschwindr%C3%B6schen#f=null&id=146D0B7EE1CBD05DF5706152AE5FE12896560492 https://www.ecosia.org/images?q=drahtschmiele#id=9368A7C39DB86B5EBC18BBE2295EF6DFC871EE2A https://www.ecosia.org/images?q=auenwald%20fauna#id=D1A0E26083FA057C130736778E5747DC4CEA587C ecture "Ökologie mitteleuropäischer Lebensräume" by Kai Jensen, part two, "Wälder" https://www.ecosia.org/images?q=forstwirtschaft

sources

content

pictures

von Oheimb, G., Friedel, A., Bertsch, A. & W. Hardtle (2007): The effects of windthrow on plant species richness in a Central European beech forest. Plant Ecology 191:47–65 Härdtle, W., von Oheimb, G. & C. Westphal (2003): The effects of light and soil conditions on the species richness of the ground vegetation of deciduous forests in northern Germany (SchleswigHolstein). Forest Ecology https://www.youtube.com/watch?v=RKvCuQyatbk lecture "Ökologie mitteleuropäischer Lebensräume" by Kai Jensen, part two, "Wälder" https://www.biologie-seite.de/Biologie/Erlenbruch

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