LANDSCAPES OF THE SWcape Flashcards
relationships of which components are shown illustrated by landscapes
geology, geomorphology, climate, soils, natural vegetation and people
SW cape layer cake
4 = recent sands 3 = Table M group sandstone 2 = cape granites 1 = malmesbury shales
what rock formations make up table mountain group sandstones?
peninsula and graafwater formation
recent sands description
late tertiart and quaternary - unconsolidated
that category of rock is each of the rock type
cape granite - igneous
malmes shale - sed
sandstone - sed
recent sand - ? unconsol
what is regolith
the layer of unconsolidated solid material covering the bedrock of a planet
colluvium
material which accumulates at the foot of a steep slope
what is a core stone
Rounded boulder, occurring individually or in piles at the ground surface, or in exposed sections
what vegetation occurs on the malmesbury shale?
renoster veld - renosterbos
what vegetation occurs on the granites and sandstones of the uplands
mountain fynbos
- proteas
- -mimetes
- -silver tree
- heaths – ericas
- restios
afromontane forest
found in crevices on wetter side of table mountain
vegetation found on recent sands of cape flats
dune fynbos
acid sand plain fynbos
how has agriculture changed the landscape?
decreased amount of natural vegetation
what is the geography of the swartland
distinctive region - undulating coastal plateau
uniform geology - malmes shale
-highliy erodible soils
-semi arid
-monoculture of small grain crops – wheat and barely
-nutrient rich soils
-perfect conditions for
what is the geography of the swartland
distinctive region - undulating coastal plateau
uniform geology - malmes shale
-highliy erodible soils
-semi arid
-monoculture of small grain crops – wheat and barely
-nutrient rich soils
-perfect conditions for
what was Talbot’s analysis of the swartland?
gullies
why was the landscape so destroyed?
- Importance of socio-economic factors, in particular the introduction of the Wheat Importation Restrictions Act of 1930 which led to price increases that stimulated production
- Reduction in fallow (rest) period coupled with expansion of cultivation into areas with steeper slopes
- Incorrect ploughing practices
- Failure to check initial signs of erosion
why was the landscape so destroyed?
- Importance of socio-economic factors, in particular the introduction of the Wheat Importation Restrictions Act of 1930 which led to price increases that stimulated production
- Reduction in fallow (rest) period coupled with expansion of cultivation into areas with steeper slopes
- Incorrect ploughing practices
- Failure to check initial signs of erosion
how did the improvement of the swartland come about
land use planning gully reclaimation landowner education soil conservation act national party governemnt fostered support among farmers
problems with alien trees
increased biomass relative to natural vegetation
- higher fuel loads - higher fire intensity
- increased water use
recent sands geomorph, soils, vegetation and degree of transformation
flat geomorph
soils= sandy, variable nutrients
vegeation = dune fynbos or acid sand plan fynbos
high degree of transformation
table mounntain group sandstone geomorph, soils, veg and trans
geomorph = rugged topography soils = shallow, nutrient poor veg = fynbos trans = moderate,low in some places
cape granite suite
geomorph = gentle rounded slopes soils = clay rich, leached veg = fynbos trans = moderate to high
malmesbury shale
geomorph = gentle rounded slopes soils = clay, loam, nutrient rich veg = renosterveld trans = very high
