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WorksheetsThe Importance of Plants in Soil erosion
Total questions: 17
Worksheet time: 9mins
Surface erosion begins
by striking a drop of water on the soil causing a relaxation in the consistency of the soil grains
because of a large amount
water on the soil causing a relaxation in the cohesion of the soil grains
The leaching of soil appears
on soils covered with vegetation
on soils bare of vegetation
The drops of rain falling on bare ground
improve soil structure
clog the territorial resources
speed up infiltration
The leaves and roots of the plants retain part of the rain water which it is
Percolated
Transpire
Renewed
Filtered
The existence of plants significantly reduces the phenomenon of erosion because
Rain water flows quickly through the soil
Rain water flows slowly through the soil
The dense grid of the root system of the clusters
links and restrains territorial resources to increase soil strength
links and restrains soil grains to increase soil strength
The root system of plants
is a "weaponry" for the lands
absorbs part of the filtered rainwater
opens chambers on the ground
allabove
Gully erosion occurs in
soils covered with poosa
soils covered with grain crops
soils bare of vegetation
What plants would you choose to avoid erosion
broadleaf 100%
needles 100%
Mixed planting: 80% conifers and 20% broadleaf
Mixed planting: 20% coniferous and 80% broadleaf
The protective effect of planting depends on
the form and the species that constitute them
their climatic needs
Planting for anti-corrosion protection is advantageous
Plants searching light to grow up, have a superficial root system and wide leaves
Plants grown under the shade of large trees, those with deep roots and the conifers
. Planting techniques depend on the following factors
The gradient and the length of the slope
Uses of the soils of the region
The degree of soil erosion
The cause of the erosion
The level and degree of restoration of the eroded landscape
In areas with large and steep slope, they are constructed
Terraces
Dams from branches
Windbreaks
In sloping areas affected by fires are manufactured
Terraces
Dams from branches
Windbreaks
The hydroseeding is used
seeds, organic fertilizer and insecticides
seeds, organic fertilizer and straw
seeds, organic fertilizer, glue and bentonite
In annual crops we protect the soils from erosion with
dense plant cover with legume plants
cropping by zoning and crop rotation
Which plants do you suggest for their anti-corrosion property?
Conifers, Arbutus, Spartium , Cypressus
Luminescent, Acacia, Dams, Oak
