| DOI: | 10.1016/j.foreco.2013.10.037
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| Scopus记录号: | 2-s2.0-84888091008
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| 论文题名: | An objective classification of largewood in streams |
| 作者: | Bataineh M.M.; Daniels L.D.
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| 刊名: | Forest Ecology and Management
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| ISSN: | 0378-1127
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| 出版年: | 2014
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| 卷: | 313 | | 起始页码: | 1
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| 结束页码: | 9
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| 语种: | 英语
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| 英文关键词: | Coarsewood
; Decay classes
; Decomposition
; Dendrochronology
; Riparian
; Woody debris
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| Scopus关键词: | Climatology
; Cluster analysis
; Decomposition
; Coarsewood
; Decay class
; Dendrochronology
; Riparian
; Woody debris
; Decay (organic)
; classification
; dendrochronology
; numerical model
; qualitative analysis
; quantitative analysis
; riparian vegetation
; stream
; wood
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| 英文摘要: | Traditional, stage-based, classification systems provide a qualitative measure of decay and have been widely used to monitor and model terrestrial coarsewood and aquatic largewood dynamics. These systems are limited by subjective assignment of wood to classes, lack of measurements relating wood morphology with decay classes, and poor estimates of elapsed time-since-death within and between decay classes. To overcome these limitations, we used quantitative methods to develop a new classification system for in-stream largewood based on morphological attributes that are (1) easily measured in the field and (2) relate to the time-since-death of individual logs. Using principal components and cluster analyses, we developed a three-class system for largewood based on log length, branch order, and cover (quartile classes) of bark, vegetation, and soil. Thresholds for each attribute provided criteria that we organized in a dichotomous key that can be used to objectively and consistently assign individual pieces of largewood into mutually exclusive classes. Using time-since-death determined using dendrochronology, we verified that successive classes in our model-based decay classification represent progressive largewood decomposition through time. This model-based classification system provides an improved framework for developing management plans and modeling dynamics of in-stream largewood. © 2013 Elsevier B.V. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/66162
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| Appears in Collections: | 影响、适应和脆弱性
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作者单位: | University of British Columbia, 2424 West Mall, Vancouver, BC V6T 1Z4, Canada
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| Recommended Citation: | |
Bataineh M.M.,Daniels L.D.. An objective classification of largewood in streams[J]. Forest Ecology and Management,2014-01-01,313
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