Response of a forest ecotone to ionizing radiation. Progress report, October 15, 1979-October 14, 1980
Compositional and structural characteristics of three forest types, including aspen dominated, maple-birch dominated, and an intervening ecotone, were studied before and after irradiation in northern Wisconsin. Irradiation occurred during the summer of 1972. By the summer of 1973 the density of viable tree seedlings at 10 m from the radiation source was substantially reduced in all three areas relative to the preirradiation densities of 1971. As of the summer of 1979, establishment of tree seedlings continued to be inhibited by the vigorous development of ground vegetation. In most respects, the ecotone has shown properties and responses to radiation intermediate to those observed in the aspen and maple-birch areas. The rate and compositional characteristics of succession in the ecotone relative to aspen and maple-birch forest types is presently under study.
- Research Organization:
- Michigan State Univ., East Lansing, MI (United States); Savannah River Ecology Lab., Aiken, SC (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76EV02283
- OSTI ID:
- 5236963
- Report Number(s):
- DOE/EV/02283-1; TRN: 80-012859
- Country of Publication:
- United States
- Language:
- English
Similar Records
Response of a forest ecotone to ionizing radiation. Progress report, October 15, 1978-October 14, 1979. [Aspen, maple, birch]
Response of a forest ecotone to ionizing radiation. Progress report, October 15, 1981-April 14, 1983
Related Subjects
FORESTS
ECOLOGY
REPRODUCTION
IONIZING RADIATIONS
BIOLOGICAL RADIATION EFFECTS
FOREST LITTER
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
MATERIALS
RADIATION EFFECTS
RADIATIONS
560141* - Radiation Effects on Plants- Basic Studies- (-1987)