Data/hora: 16/06/2024 08:55:20

Provedor de dados: | 18
País: | United Kingdom
Título: | Mt. St. Helens Ash: Considerations of its fallout on rangelands
Autores: | Sneva, F.A.; Britton, C.M.; Mayland, H.F.; Buckhouse, J.; Evans, R.A.; Young, J.A.; Vavra, M.
Data: | 1982
Ano: | 1982
Palavras-chave: | Mass Import - unclassified.
Resumo: | Field and laboratory studies were conducted on volcanic ash from  Yakima, Moses Lake, Spokane, Washington, and Moscow, Idaho, three weeks  after the May 18, 1980, eruption of Mt. St. Helens in southwestern  Washington. These studies examined 1) the chemical, physical, and water  retentivity properties of the ash, 2) the effect of the ash upon germination  and emergence of crested wheatgrass and cheatgrass, 3) the impact of ash  upon in vitro digestion of common forages fed to cattle and the rate-of-passage  of ash in steers, and 4) the influence of the ash layer on water  infiltration into a range soil and the amount of sediments in the runoff  water. In addition to the above short term studies, small field plots of  various ash treatments were initiated to monitor the effects of the ash  over the long term, both on individual native plants and the native and  seeded plant community. These field studies are being conducted in an  environment similar to that on which the ash fallout occurred and will  allow ash response to be compared with absolute control areas of no ash.
Tipo: | Technical Bulletin
Idioma: | Inglês

Identificador:

http://eprints.nwisrl.ars.usda.gov/1128/1/615.pdf

Sneva, F.A. and Britton, C.M. and Mayland, H.F. and Buckhouse, J. and Evans, R.A. and Young, J.A. and Vavra, M.  (1982) Mt. St. Helens Ash: Considerations of its fallout on rangelands.    Oregon Agricultural Experiment Station Special Report No. 650.      29 pp.

Relação:

http://eprints.nwisrl.ars.usda.gov/1128/

0615

Formato: | application/pdf