EFFECTS OF BIGLEAF MAPLE ON SOILS IN DOUGLAS-FIR FORESTS

被引:33
作者
FRIED, JS [1 ]
BOYLE, JR [1 ]
TAPPEINER, JC [1 ]
CROMACK, K [1 ]
机构
[1] OREGON STATE UNIV,COLL FORESTRY,CORVALLIS,OR 97331
来源
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE | 1990年 / 20卷 / 03期
关键词
D O I
10.1139/x90-038
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
Soil chemical and physical properties, forest floor weights, nutrient content and turnover rates, and litter fall weights and nutrient content under Acer macrophyllum and Pseudotsuga menziesii var. menziesii were compared on the E margin of the Oregon Coast Range. Litter fall weight and nutrient content were significantly greater under maple on every site for every macronutrient and for most micronutrients. Forest floor biomass and nutrient content were extremely variable, much more so than litter fall, and there were no consistent differences between the 2 species. However, turnover rates for forest floor biomass and nutrients were significantly faster under maple for every nutrient at every site. Bulk density of mineral soil was also highly variable with significant differences at only 2 of 5 sites. Soil under maple was consistently higher in N and, less consistently, in K. Soil organic C content under maple was significantly greater than under Douglas-fir on 4 sites, possibly resulting from the more rapid turnover of forest floors under maple. -from Authors
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页码:259 / 266
页数:8
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