DOI: 10.1016/j.foreco.2013.01.001
Scopus记录号: 2-s2.0-84873156000
论文题名: Forest biomass patterns across northeast China are strongly shaped by forest height
作者: Wang X. ; Ouyang S. ; Sun O.J. ; Fang J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 293 起始页码: 149
结束页码: 160
语种: 英语
英文关键词: Belowground biomass
; Canopy-tree life form
; Forest (tree) height
; Forest biomass
; Northeast China
Scopus关键词: Belowground biomass
; Forest (tree) height
; Forest biomass
; Life form
; Northeast China
; Biomass
; Climate models
; Optical radar
; Forestry
; aboveground biomass
; belowground biomass
; biomass
; carbon sink
; climate conditions
; environmental factor
; forest cover
; height
; lidar
; root-shoot ratio
; Biomass
; China
; Climates
; Forest Canopy
; Forestry
; Optical Activity
; Radar
; China
英文摘要: The emergency of satellite-borne light detecting and ranging (LiDAR) technology in recent years have provided a promising way to monitor worldwide patterns of forest biomass and carbon sources/sinks. However, few studies have examined the roles of various abiotic and biotic factors in modulating the relationship between forest biomass and height at a large scale. This is important given the growing dependence on LiDAR derived forest height as a predictor of forest biomass. In this analysis, we used 529plots across northeast China to examine this question, and to explore the method to estimate forest biomass from height. Our results showed that, while forest height and average tree height showed close relationships with stand biomass or mean biomass per stem (R2 between 0.57 and 0.78), stand biomass could not be reliably predicted with two methods based on average tree height. In contrast, when the effects of climate and forest groups were included in the models, forest height could predict biomass patterns with a R2 between 0.74 (belowground) and 0.91 (total biomass), which was comparable to the widely accepted biomass expansion factor method (R2 between 0.72 and 0.98). We also showed that the ratio of both aboveground and belowground biomass to forest height (B/H ratio) was roughly similar at a large scale, suggesting that forest biomass patterns are strongly shaped by forest height. However, B/H ratio showed significant difference between deciduous and evergreen forests across northeast China. The life form of canopy trees was the major factor modulating the relationships between stand biomass and forest height, while climate, forest type and forest origin played a secondary role. Our results strongly support the use of LiDAR to monitor the large-sale patterns of both above and belowground forest biomass. Our analysis also found that the lack of forest height information in previous literatures has caused most of the biomass data could not be utilized to estimate biomass patterns from height, and we advocate future analyses to report forest height together with field-observed biomass. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66717
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: The Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China; Department of Ecology, College of Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
Recommended Citation:
Wang X.,Ouyang S.,Sun O.J.,et al. Forest biomass patterns across northeast China are strongly shaped by forest height[J]. Forest Ecology and Management,2013-01-01,293