Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-22T20:17:41.064Z Has data issue: false hasContentIssue false
  • English
  • Français

Soil Seed Bank Changes after Forest Clearing and Agricultural Use in Alaska

Published online by Cambridge University Press:  12 June 2017

Jeffery S. Conn ,
Catherine L. Cochrane  and
John A. Delapp
Jeffery S. Conn
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Univ. of Alaska, Fairbanks, AK 99701
Catherine L. Cochrane
Affiliation:
Agr. Exp. Stn., Univ. of Alaska, Fairbanks, AK 99701
John A. Delapp
Affiliation:
Agr. Exp. Stn., Univ. of Alaska, Fairbanks, AK 99701
Get access Rights & Permissions [Opens in a new window]

Abstract

Soil samples representing a time series from forest before clearing to land in cultivation for 20 yr were taken near Delta Junction, AK, to determine the changes that occur in the soil seed bank following clearing and agricultural use. The total number of seed was initially low in the forested sites but increased after 3 to 5 yr in cultivation due to seed production by native colonizers and by introduced weeds such as common lambsquarters (Chenopodium album L. ♯3 CHEAL). Viability of seed of several mature forest species was low. There was a shift from a seed bank dominated by native species in the forest and newly cleared sites to a seed bank dominated by introduced colonizers in the older fields. Although seed of introduced species increased in importance over time, native species, especially native colonizers, continued to be an important component of the seed bank throughout the 20-yr period represented.

Keywords

Weed shifts
Type
Weed Biology and Ecology
Information
Weed Science , Volume 32 , Issue 3 , May 1984 , pp. 343 - 347
Copyright
Copyright © 1984 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Angevine, M. W. and Chabot, B. F. 1979. Seed germination syndromes. Pages 188–206 in Solbrig, O. T., Jain, S., Johnson, G. B. and Raven, P. H., eds. Topics in Plant Population Biology. Columbia Univ. Press, New York.Google Scholar
2. Conn, J. S. and DeLapp, J. A. 1983. Weed species shifts with increasing field age in Alaska. Weed Sci. 31:520–524.CrossRefGoogle Scholar
3. Densmore, R. A. 1979. Aspects of the seed ecology of woody plants of the Alaskan taiga and tundra. Ph.D. dissertation. Duke Univ. 285 pp. in Diss. Abstr. 40:3558B–3559B.Google Scholar
4. Fraser, J. W. 1976. Viability of black spruce seed in or on a boreal forest seed bed. For. Chron. 52:229–231.CrossRefGoogle Scholar
5. Granstrom, A. 1982. Seed banks in five boreal forest stands originating between 1810 and 1963. Can. J. Bot. 60:1815–1821.Google Scholar
6. Harper, J. L. 1977. Population biology of plants. Academic Press, London. 892 pp.Google Scholar
7. Hurka, H. and Haase, R. 1982. Seed ecology of Capsella bursa-pastoris (Cruciferae): dispersal mechanism and the soil seed bank. Flora 172:35–46.CrossRefGoogle Scholar
8. Johnson, E. A. 1975. Buried seed populations in the subarctic forest east of Great Slave Lake, Northwest Territories. Can. J. Bot. 53:2933–2941.CrossRefGoogle Scholar
9. Lindenbein, W. 1965. Tetrazolium testing. Proc. Int. Seed Test. Assoc. 30:89–97.Google Scholar
10. Malone, C. R. 1967. A rapid method for enumeration of viable seeds in soil. Weed Sci. 25:381–382.Google Scholar
11. Olmsted, N. W. and Curtis, J. D. 1947. Seeds of the forest floor. Ecology 28:49–52.CrossRefGoogle Scholar
12. Roberts, H. A. 1962. Studies on the weeds of vegetable crops. II. Effect of six years of cropping on the weed seeds in the soil. J. Ecol. 50:803–813.CrossRefGoogle Scholar
13. Roberts, H. A. 1968. The changing population of viable weed seeds in an arable soil. Weed Res. 8:253–256.Google Scholar
14. Warnes, D. D. and Andersen, R. N. 1983. Longevity of wild mustard [Brassica kaber (DC.) L.C. Wheeler, var. pinnatifida (Stokes) L.C. Wheeler] seeds in soil under various cultural practices. Weed Sci. Soc. Am. Abstr. p. 67.Google Scholar
15. Welsh, S. L. 1974. Anderson's Flora of Alaska and Adjacent Parts of Canada. Brigham Young Univ. Press, Provo, UT. 724 pp.Google Scholar