I can see their tunnels horizontally in the clay, without any evidence of their going up into the soil layer.
22.
The fewer the species, the sparser the growth and the greater the amount of nitrogen leaching out of upper soil layers.
23.
Sugar maples engage in hydraulic lift, drawing water from lower soil layers and exuding that water into upper, drier soil layers.
24.
Based on the structure of soil layers and typical items, the soil layers can be classified into 3 different cultural layers:
25.
Based on the structure of soil layers and typical items, the soil layers can be classified into 3 different cultural layers:
26.
Sugar maples engage in hydraulic lift, drawing water from lower soil layers and exuding that water into upper, drier soil layers.
27.
By examining the soil layers and the soil itself, Sundell said, scientists can learn about the ecology when this particular mastodon lived.
28.
Whether or not plants redistribute water through the soil layers can affect plant population dynamics, such as the facilitation of neighboring species.
29.
Plants with deep taproots can penetrate many metres through the different soil layers to bring up nutrients from deeper in the profile.
30.
The immature leafminers feed for several weeks, then drop to the ground where they enter the soil layer to develop into pupae.
