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DOI | 10.1093/jpe/rtx071 |
Environmental landscape determinants of maximum forest canopy height of boreal forests | |
Mao, Lingfeng1; Bater, Christopher W.2; Stadt, John J.2; White, Barry2; Tompalski, Piotr3; Coops, Nicholas C.3; Nielsen, Scott E.1 | |
发表日期 | 2019 |
ISSN | 1752-9921 |
EISSN | 1752-993X |
卷号 | 12期号:1页码:96-102 |
英文摘要 | Aims Canopy height is a key driver of forest biodiversity and carbon cycling. Accurate estimates of canopy height are needed for assessing mechanisms relating to ecological patterns and processes of tree height limitations. At global scales forest canopy height patterns are largely controlled by climate, while local variation at fine scales is due to differences in disturbance history and local patterns in environmental conditions. The relative effect of local environmental drivers on canopy height is poorly understood partly due to gaps in data on canopy height and methods for examining limiting factors. Here, we used airborne laser scanning (ALS) data on vegetation structure of boreal forests to examine the effects of environmental factors on potential maximum forest canopy height. Methods Relationships between maximum canopy height from ALS measures and environmental variables were examined to assess factors limiting tree height. Specifically, we used quantile regression at the 0.90 quantile to relate maximum canopy height with environmental characteristics of climate (i.e. mean annual temperature [MAT] and mean annual precipitation), terrain (i.e. slope) and depth-to-water (DTW) across a 33000 km(2) multiple use boreal forest landscape in northeast Alberta, Canada. Important Findings Maximum canopy height was positively associated with MAT, terrain slope and terrain-derived DTW, collectively explaining 33.2% of the variation in heights. The strongest explanatory variable was DTW explaining 26% of canopy height variation with peatland forests having naturally shorter maximum canopy heights, but also more sites currently at their maximum potential height. In contrast, the most productive forests (i.e. mesic to xeric upland forests) had the fewest sites at their potential maximum height, illustrating the effects of long-term forest management, wildfires and general anthropogenic footprints on reducing the extent and abundance of older, taller forest habitat in Alberta's boreal forest. |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
来源期刊 | JOURNAL OF PLANT ECOLOGY |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/92333 |
作者单位 | 1.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2H1, Canada; 2.Alberta Agr & Forestry, Forestry Div, Forest Management Branch, Edmonton, AB T5K 2M4, Canada; 3.Univ British Columbia, Dept Forest Resource Management, Vancouver, BC V6T 1Z4, Canada |
推荐引用方式 GB/T 7714 | Mao, Lingfeng,Bater, Christopher W.,Stadt, John J.,et al. Environmental landscape determinants of maximum forest canopy height of boreal forests[J],2019,12(1):96-102. |
APA | Mao, Lingfeng.,Bater, Christopher W..,Stadt, John J..,White, Barry.,Tompalski, Piotr.,...&Nielsen, Scott E..(2019).Environmental landscape determinants of maximum forest canopy height of boreal forests.JOURNAL OF PLANT ECOLOGY,12(1),96-102. |
MLA | Mao, Lingfeng,et al."Environmental landscape determinants of maximum forest canopy height of boreal forests".JOURNAL OF PLANT ECOLOGY 12.1(2019):96-102. |
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