气候变化领域集成服务门户(CCPortal): Structural development following stand-replacing disturbance in a boreal mixedwood forest

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DOI	10.1016/j.foreco.2019.117586
	Structural development following stand-replacing disturbance in a boreal mixedwood forest
	Mulverhill C.; Coops N.C.; White J.C.; Tompalski P.; Marshall P.L.
发表日期	2019
ISSN	0378-1127
卷号	453
英文摘要	Knowledge of forest stand successional pathways, and responses to disturbances, is crucial for improved sustainable management of the resource. Forest structure, one attribute of which is the size and height distribution of trees in a stand (known as the stem size distribution; SSD), is highly sensitive to changes in stand dynamics. However, monitoring changes in SSD can be difficult and costly, especially across large spatial extents and by different disturbance types and species groups. As a result, forest managers increasingly utilise three-dimensional remote sensing such as airborne laser scanning (ALS) as a means of modeling forest structure in a cost-effective and spatially consistent manner. In this study, approximately 7000 ALS-derived SSDs representing a chronosequence of over 50 years of forest disturbance in Alberta, Canada were used to evaluate differences in structural development by species groups and disturbance types. Stands were clustered into three structural development phases based on ALS-derived SSDs. Results showed no difference in SSDs for early development phases, but significantly higher proportions of trees in medium-sized diameter classes (up to 25 cm diameter at breast height) in previously burned stands than in previously harvested stands. For each structural development phase, in both burned and harvested stands, there was no significant difference in modeled SSD among species groups. No difference in SSD for each phase was also seen when comparing previously burned to harvested stands for mixed species and white spruce stands. However, aspen and pine-dominated stands had significantly higher proportions of larger trees in burned stands than harvested stands in the second and third phase of structural development. Results from this study provide valuable insights to the current state of the forest, as well as an improved understanding of the general patterns of structural development following disturbance. © 2019
英文关键词	ALS; Disturbance; Forest management; Forest structure; Stem size distributions; Structural development
语种	英语
scopus关键词	Aluminum; Cost effectiveness; Harvesting; Remote sensing; Size distribution; Airborne Laser scanning; Diameter-at-breast heights; Disturbance; Forest disturbances; Forest structure; Height distribution; Structural development; Sustainable management; Forestry; airborne survey; boreal forest; coniferous forest; diameter; environmental disturbance; forest ecosystem; forest management; laser method; mixed forest; remote sensing; stand structure; Aluminum; Cost Effectiveness; Development; Forestry; Harvesting; Phases; Remote Sensing; Trees; Alberta; Canada; Picea glauca
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155740
作者单位	Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada; Canadian Forest Service (Pacific Forestry Centre), Natural Resources Canada, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
推荐引用方式 GB/T 7714	Mulverhill C.,Coops N.C.,White J.C.,et al. Structural development following stand-replacing disturbance in a boreal mixedwood forest[J],2019,453.
APA	Mulverhill C.,Coops N.C.,White J.C.,Tompalski P.,&Marshall P.L..(2019).Structural development following stand-replacing disturbance in a boreal mixedwood forest.Forest Ecology and Management,453.
MLA	Mulverhill C.,et al."Structural development following stand-replacing disturbance in a boreal mixedwood forest".Forest Ecology and Management 453(2019).