Trembling aspen site index in relation to environmental measures of site quality at two spatial scales

被引:100
作者
Chen, HYH
Krestov, PV
Klinka, K
机构
[1] Ontario Minist Nat Resources, Appl Res & Dev Branch, S Porcupine, ON P0N 1H0, Canada
[2] Russian Acad Sci, Far Eastern Branch, Inst Biol & Pedol, Vladivostok 690022, Russia
[3] Univ British Columbia, Dept Forest Sci, Vancouver, BC V6T 1Z4, Canada
关键词
D O I
10.1139/x01-179
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
To evaluate the variation in trembling aspen (Populus tremuloides Michx.) productivity at a large geographic scale, we examined the relationships between site index and environmental factors from 142 even-aged, fully stocked stands located on a variety of sites across interior British Columbia. Site index was derived from stem analysis and the environmental measures included climate surrogates (latitude, longitude, and elevation), biogeoclimatic zone, slope- aspect, actual soil moisture regime (SMR), and soil nutrient regime (SNR). The spatial gradients (latitude, longitude, and elevation), slope-aspect, SMR, and SNR affected aspen site index, but their relationships greatly varied with biogeoclimatic zone. At the provincial scale, these relationships were weaker than on the zonal scale. Among the models developed for predicting aspen site index, we recommend the zone-specific all-factor model for application, which explained 82% of the variation of site index and provided unbiased and precise predictions.
引用
收藏
页码:112 / 119
页数:8
相关论文
共 35 条
[1]  
[Anonymous], ECOL WESTERN N AM
[2]  
[Anonymous], 1996, Forest Stand Dynamics
[3]  
[Anonymous], 1989, INDICATOR PLANTS COA
[4]  
[Anonymous], BC MINISTRY FORESTS
[5]  
CARMEAN WH, 1972, FOREST SCI, V18, P109
[6]  
Chen Han Y. H., 2000, Western Journal of Applied Forestry, V15, P62
[7]   Height growth and site index models for trembling aspen (Populus tremuloides Michx) in northern British Columbia [J].
Chen, HYH ;
Klinka, K ;
Kabzems, RD .
FOREST ECOLOGY AND MANAGEMENT, 1998, 102 (2-3) :157-165
[8]   Characterization of nutrient regimes in some continental subalpine boreal forest soils [J].
Chen, HYH ;
Klinka, K ;
Fons, J ;
Krestov, PV .
CANADIAN JOURNAL OF SOIL SCIENCE, 1998, 78 (03) :467-475
[9]   Site index, site quality, and foliar nutrients of trembling aspen: relationships and predictions [J].
Chen, HYH ;
Klinka, K ;
Kabzems, RD .
CANADIAN JOURNAL OF FOREST RESEARCH, 1998, 28 (12) :1743-1755
[10]  
DeByle N.V., 1985, RMGTR119 USDA FOR SE