DISPERSAL OF WHITE SPRUCE SEED ON WILLOW ISLAND IN INTERIOR ALASKA

被引：0
|
作者：
YOUNGBLOOD, A
MAX, TA
机构：
来源：
USDA FOREST SERVICE PACIFIC NORTHWEST RESEARCH STATION RESEARCH PAPER | 1992年 / 443期
关键词：
WHITE SPRUCE; PICEA-GLAUCA; DISPERSAL OF SEED; ALASKA (INTERIOR); PRODUCTION OF SEED; WIND PATTERN;
D O I：
暂无
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
The seasonal and spatial patterns of dispersal of white spruce (Picea glauca (Moench) Voss) seed were studied from 1986 to 1989 in floodplain stands along the Tanana River near Fairbanks, Alaska. Analysis of the 1987 crop showed that production of filled seed was strongly related to estimated production of total seed and unrelated to selected stand structural characteristics. A mathematical expression, developed to estimate dispersal of filled seed into clearcut openings, predicted dispersal between 10 and 120 meters from the edge of an opening. The pattern of wind during the seed-dispersal season was predictable and consistent with winds measured at the Fairbanks International Airport. The results give forest managers ways to increase natural regeneration of white spruce in interior Alaska.
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页码：U1 / 17
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