BROWN EARTH SOILS🤎🌍 Flashcards
What type of soil is a brown earth soil?!
ZONAL soil
What climate is brown earth soil found in
Cool Temperate Oceanic Climate
Where is a Cool Temperate Oceanic Climate found
30-55° North of Equator
Why is there no distinct boundary between the A and B horizons
Burrowers mix soil together, there are lots of organisms as the climate is suitable
What factors of the climate contribute to it being ideal for formation of humus
Mild winters and warm summers
What is the pH of brown earth soil
It varies between slightly acidic and slightly alkaline depending on the parent rock
Give an example of a parent rock tbat would cause BES to be slightly acidic
Sandstone
Giv an example of a parent rock that would influence a BES to be slightly alkaline
Lime rich parent material
What texture to BES have
Loamy texture
What structure do BES HAVE
Crumby structure
What causes BES to have a loamy texture
Balance of mechanical and chemical weathering leads to equal amounts of sand silt and clay giving BES a loamy texture
What type of minerals does FREEZE THAW weathering provide for BES
Large angular sand sized minerals
What type of particles does HYDROLYSIS of granite rocks provide for BES
clay particles
Give some reasons that BES IS FERTILE
Humus+nutrients washed but not leached into soil
Loamy texture allows for space between soil particles for air and water which causes it to be well drained and fertile
