by Robert Sanders, UC Berkeley An oft - neglected layer of weathered rock
underlying the soil on hillslopes could be a... [Read More...] about Hidden «rock moisture» may be key to tree survival during drought
It is now the domain of a red - haired University of Arizona geologist named Steve DeLong, who is working on a huge new mesocosm: three towering, sloping steel tables nearly 100 feet long and 60 wide, upon which will be constructed artificial landscapes
with underlying soil and plants.
But there's a tragic irony to clearing rainforests for agriculture:
their underlying soils are extremely poor.
These tiny bugs hitch a ride from
the underlying soil into a decaying body on other insects.
Over the lifespan of a gas station, Hilpert says, concrete pads underneath the pumps can accumulate significant amounts of gasoline, which can eventually penetrate the concrete and escape into
underlying soil and groundwater, potentially impacting the health of those who use wells as a water source.
Deciduous trees have very different ecological and physical characteristics than conifers, so this switch could impact how they cycle nutrients and store toxic metals in
their underlying soil.
They found that canopy chemical traits are organized in a large mosaic controlled by changes in
the underlying soils and by elevation.
In fall, leaf mercury is then transferred to
the underlying soil system by leaf senescence.
The ocean, with around 38,000 gigatons (Gt) of carbon (1 gigaton = 1 billion tons), contains 16 times as much carbon as the terrestrial biosphere, that is all plant and
the underlying soils on our planet, and around 60 times as much as the pre-industrial atmosphere, i.e., at a time before people began to drastically alter the atmospheric CO2 content by the increased burning of coal, oil and gas.
This leaves
the underlaying soil exposed to the wind.
Rain gardens are vegetated or landscaped depressions designed with an engineered soil layer that promotes infiltration of stormwater runoff into
the underlying soil.
Your house may be subjected to wind - driven rain and road splash, and may sit in an area where
the underlying soil (your parking spot) may get wet.