A.15 - Grassland formation and their distribution in the Earth and Europe (regarding to the major grassland types) Flashcards
1
Q
Where do grasslands occur?
A
Where rainfall:
- Isn’t enough to support forests
- Is enough to support the grasses
- 200-1000mm per year
2
Q
Savanna
A
- African woodland-grassland ecosystem
- Natural Grazers
- Finger Grass, Elephant Grass
- Poor digestibility of foliage
3
Q
Cerrado
A
- Brazilian Soy Production
- Rich for Low density cattle grazing
- Carpet Grasses, Bluestem Grasses
- Coarse and Low nutrition
4
Q
Prarie
A
- Grazed by large mammals
- Found in areas with high average rainfall
- Big bluestem, Indian grass
- High quality hay - 65% nutrients, 10% Proteins digestible
5
Q
Pampas
A
- Argentina and Uruguay
- Nutrient-rich soils
- Pampas Grass
- Overgrazing common
6
Q
Velds
A
- South Africa
- Sweet Velds, Sour Velds
- Less Palatable forage
- Red Oat grass, Wire grass
7
Q
Steppes
A
- Eurasian Grass-covered Forest
- Feather Grasses, Fescues, Sedges
- Species with underground bulbs
8
Q
Give the Natural Grasslands
A
- Savanna
- Cerrado
- Prairie
- Pampas
- Velds
- Steppes
9
Q
What are the European Grasslands?
A
- Molinia Meadows
- Mesotrophic Wet Meadows
- Arrgenatherum hay meadows
- Loess Steppes
- Open Sand Steppes
- Closed Sand Steppes
- Salt Meadows
- Rocky Grasslands
- Mountain Hay meadows
10
Q
Molinia Meadows
A
- Tall Grasses
- Sedges, rushes
- Dominated by Molinia Species
11
Q
Mesotrophic Wet Meadows
A
- Moist, Nutrient Rich Soil
- Floodplains
- Excellent Hay
- Agrostis, Festuca
12
Q
Arrhenatherum Hay Meadows
A
- Valley Grasslands
- Filled with buttercups
- Rarely Grazed
13
Q
Loess Steppes
A
- Middle-eastern European Steppes
- Grazed by sheep
- Spring Pheasant’s eye, Spurges
14
Q
Open Sand Steppes
A
- Drought-tolerant, low grassland
- Not used for hay
- Grazed by sheep
- Feather Grasses, Small Fescues
15
Q
Closed Sand Steppes
A
- Covers more than 50%
- Heavy treading can damage the grassland
