DECIDUOUS WOODLANDS Flashcards
key characteristics of decidous woodlands
- thick layer of leaf fall each year creates deep, fertile soil
-slow leaching means nutrients move slowly through the soil
Gersmehl model in relation to decidous woodlands?
(B and S are largest)
veg layering in decidous woodlands
- canopy
- subcanopy
- herb layer
- ground layer
discuss decidous woodlands’ moderate biodiversity
:) 4 layers create a range of habitats
precipitation year-round provides much water to support moderatley high biodiverist
:( smaller in size compared to TRF–> less space
high latitude than TRF–> decreased insolation decreased sunlight decreased PHOTOSYNTHESIS
3 animal adaptations in the decidous woodland
- birds migrate away from UK to warmer locations
-red squirrels store hood
-hedgehogs hibernate
3 plant adaptations in the decdous woodland
-decidous trees drop leaves in autumn to reduce transpiration and conserve water
- trees spread branhes to maximise access to sunlight
-large, deep root systems to reach nutrients from soil
goods and services provided by decidous woodlands
-wood
-carbon store
impact of climate change on decidous woodlands
a) structure– increased temperature increases risk of forest fires, which would result in significant damage ot plant and animal habitats
b) biodiversity– milder winters means pests could survive, increasing the spread of diseases and leaving culnerable species in danger
discuss deforestation in decidous woodlands
- timber extraction
replacing decidous trees with conifers gurarantee a faster return as they are fast growing, but a dense canopy of conifers can block sunlight and reduce biodiversity - urbanisation
-higher car ownership means trees have to be cleared to build wider roads to ase congestion
deciduous woodland management case study– BOX HILL
- timber–> fuels/ consturctuion of walking trails
~ coppicing= cutting trees at ground level, encouraging shoots to regrow from stump base of origanl tree–> ensure constant supply of wood - conservation–> support high biodiversity of 38 species of butterflies
~ listed as European special area of conservation// bluebells listed as endangered species in the UK law - tourism –> 850000 people a year visit box hill
~National trust provides education, such as guided walks and school tours