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THE SOIL (natural important resource) - Coggle Diagram
THE SOIL (natural important resource)
is the made of
AIR
WATER
ORGANIC MATTER
is a substance composed by
animal
humus
fertile and dark color
is formed by: plants, animals, tiny rocks and action of battery
plants
FRAGMENT OF ROCKS
a breakdown
had to tiny rocks
LAYER SOIL
TOPSOIL
, is rich of humus. It si derived from the decomposition of organic substance
SUBSOIL
, is composed of coarser particlesof rocks.
PARENT ROCK
, is the part which is the most compact and deep.
BEDROCK
, is composed of fragment of rocks.
THE LOAM
is the best soil for grow the plants
had the good quantity of water and air
had the big and small particles
is formed by
sand
is a large particles, had a good drained (is granular) and has little water and more air
silt
is a medium particles, is feels smooth and has little air and more water
clay
is a smallest particles, is a feels sticky, so it is compact and it has a lot of water.
WHO LIVES IN THE SOIL?
mole
small insect
insect
worms
done tunnel
so that air and water, can pass in the soil
TILLAGE
is agricultural preparation of soil.
make it ready for the coltivation of crops.
consist of
rolling
ploughing
harrowing
SOIL EROSION
, is a natural process
wind
worsened chemicals
action of water
practices to reduce erosion
grassed waterways
terraces
cover crops
windbreaks
conservation tillage