Answer these questions after reading "Conifers Get Prickly When It Comes to New Locations" by Peter N. Spots, Christian Science Monitor, 14 Jan 1997.
- Aspens are deciduous (leaves dropping off the tree in the fall). Conifer means cone bearing. We think of conifers as trees with thin needle-like leaves. This article mentions three species of conifer __________________________, ____________________, ______________________.
- In our northern neighbor, British Columbia, nearly 4 million acres of forest lands (the size of 28 Island Counties! ) are considered ______________________________________ .
What does Dr. Kronzucker consider most noteworthy about soil differences under the different tree stands ?
- In aspen groves, _______________ was the most abundant form of nitrogen.
- In conifer groves, ___________________ was the most abundant form of nitrogen.
- After disturbance or fire, the nitrogen and oxygen compounds called ____________ replaces the nitrogen and hydrogen compound _____________________ in forest soils.
What did Dr. Kronzucker and his team propose about conifer's nitrogen 'likes' ?
What did Kronzucker's nitrogen compound experiments show about the white-spruce seedlings nitrogen consumption?
- Were the experiments with other conifer seedlings similar ? ________________________
How was the aspen seedlings nitrogen consumption different ?
What can happen when conifer seedlings are planted in a clear-cut ?
How does precipitation falling on the soil affect plant nutrients in the soil?
Microbes (bacteria) are a key player in nitrogen cycles. After disturbance or fire, microbes have less carbon in the soil available to them. Describe how this changes what the microbes do with nitrogen.
Dr. Stark suggests that before we replant with conifers, a preparatory tree be planted to: