Effects of Fire on Soil Seed Banks on the Hanford Site

Baker, Sarah E.

Pacific Northwest National Laboratory (U.S.)

关键词: Dusts;    Gramineae;    Plants;    Storms;    Seeds;   

DOI  :  10.2172/15010557
RP-ID  :  PNNL-13888
RP-ID  :  AC05-76RL01830
RP-ID  :  15010557

美国|英语

来源: UNT Digital Library

【 摘 要 】

The Hanford wildfire in the summer of 2000 destroyed much of the vegetation on the Hanford Site, often resulting in soil erosion and dust storms. The 200 W Area has been affected by dust storms, and a re-vegetation project has been planned for the area to the west, the source of much of the dust. To determine if the seed bank in this area had been damaged by the fire, inhibiting natural re-growth, soil samples were collected from three burned areas and watered to see how much seedling emergence would occur. The soil was then sifted for grass seeds and the seeds examined for signs of fire damage. From this data it was concluded that significant damage to the seed bank probably occurred in the 200 West Expansion Area, and slight damage may have occurred primarily to monocot seeds in the seed banks farther west.