Conifers Get Prickly When It Comes to New Locations Questions

Answer these questions in complete sentences on a separate sheet of paper.

  1. Conifer means cone bearing, referring to the plant's reproductive structures. We tend to think of conifers as trees with thin ___________- like leaves. Aspens are small trees with broad leaves that are deciduous, meaning that aspens ____________________________ .
  2. In our northern neighbor, British Columbia, nearly 4 million acres of forest lands (the size of 28 Island Counties! ) are considered ______________________________________ .
  3. Both nitrates and ammonium are inorganic forms of nitrogen that are ______________ to plants (think back to the words we used when describing the nitrogen cycle).
  4. In aspen groves, ____________ was the most abundant form of nitrogen. In conifer groves, ________________ was the most abundant form of nitrogen.
  5. After disturbance or fire, the nitrogen and oxygen compound ____________ replaces the nitrogen and hydrogen compound _______________ in forest soils.
  6. What did Dr. Kronzucker and his team propose about conifer's nitrogen 'likes'?
  7. What did Kronzucker's nitrogen compound experiments show about white-spruce seedlings?
  8. And aspen seedlings?
  9. What about other conifer seedlings?
  10. What else can hamper a reseeding attempt?
  11. Microbes are a key player in nitrogen cycles. What are microbes?
  12. After disturbance or fire, microbes have less carbon in the soil available to them. Describe how this changes what the microbes do with nitrogen.
  13. This article refers to two other articles written in the journal ______________ . That journal is a peer-reviewed publication of great international renown. What does that mean for the validity of the results?

Reference: "Conifers Get Prickly When It Comes to New Locations". Peter N. Spotts. Christian Science Monitor. 14 Jan 1997.