Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.08.014 |
Effects of climate on maximum size-density relationships in Western Canadian trembling aspen stands | |
Kweon, Deogkyu; Comeau, Philip G. | |
2017-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 406 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Maximum size-density relationships (MSDR) are examined in stands of trembling aspen (Populus tremuloides Michx.) in the boreal forest region of Alberta and Saskatchewan, Canada. Stochastic frontier function regression was used to develop the static self-thinning line, and a linear mixed-effects model was used to estimate the average dynamic self-thinning line from repeated measurements. Climate variables obtained from Climate WNA were included in our models. The static self-thinning line was steeper than Reineke's slope (1.605), while the average slope value of the dynamic self-thinning line was not different from 1.605. Increasing frost free period, summer heat moisture index, and mean coldest month temperature move the static self-thinning line downwards because these climate variables are linked to increases in evapotranspiration and drought exposure. For the average dynamic self-thinning line, degree days above 5 degrees C positively increases the intercept and summer heat moisture index has a negative effect on the intercept, but no effect on the slope for both climate variables. Results suggest that increasing summer dryness related to climate change may decrease the carrying capacity and productivity of aspen stands in portions of this region. |
英文关键词 | Trembling aspen (Populus tremuloides Michx.) Maximum size-density relationship Self-thinning Static thinning line Dynamic thinning line Climate Boreal forest |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416395800028 |
WOS关键词 | THINNING BOUNDARY LINE ; INDUCED TREE MORTALITY ; POPULUS-TREMULOIDES ; DOUGLAS-FIR ; DROUGHT ; GROWTH ; SPRUCE ; RULE ; PRODUCTIVITY ; MANAGEMENT |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23361 |
专题 | 气候变化 |
作者单位 | Univ Alberta, Dept Renewable Resources, 751 Gen Serv Bldg, Edmonton, AB T6G 2H1, Canada |
推荐引用方式 GB/T 7714 | Kweon, Deogkyu,Comeau, Philip G.. Effects of climate on maximum size-density relationships in Western Canadian trembling aspen stands[J]. FOREST ECOLOGY AND MANAGEMENT,2017,406. |
APA | Kweon, Deogkyu,&Comeau, Philip G..(2017).Effects of climate on maximum size-density relationships in Western Canadian trembling aspen stands.FOREST ECOLOGY AND MANAGEMENT,406. |
MLA | Kweon, Deogkyu,et al."Effects of climate on maximum size-density relationships in Western Canadian trembling aspen stands".FOREST ECOLOGY AND MANAGEMENT 406(2017). |
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