DOI: 10.1016/j.foreco.2017.04.037
Scopus记录号: 2-s2.0-85018972655
论文题名: Regeneration response to canopy gap size in a Chinese pine plantation: Species diversity patterns, size structures and spatial distributions
作者: Wang Z. ; Yang H. ; Dong B. ; Zhou M. ; Ma L. ; Jia Z. ; Duan J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 397 起始页码: 97
结束页码: 107
语种: 英语
英文关键词: Canopy gap size
; Pinus tabuliformis Carr.
; Regeneration
; Spatial pattern
; Species diversity pattern
Scopus关键词: Biodiversity
; Forestry
; Population distribution
; Spatial distribution
; Sustainable development
; Canopy gaps
; Diameter distributions
; Pinus tabuliformis Carr
; Regeneration
; Regeneration response
; Resource requirements
; Spatial patterns
; Sustainable management
; Reforestation
; canopy gap
; coniferous tree
; plantation forestry
; population size
; population structure
; regeneration
; seedling
; shade tolerance
; spatial distribution
; species diversity
; sustainable forestry
; China
; Coniferophyta
; Pinus tabuliformis
英文摘要: Chinese pine (Pinus tabuliformis Carr.) is one of the most commercially important conifers in northern China because of its important economic and ecological value. However, most Chinese pine plantations have suffered degradation following fertility declines, pests and disease outbreaks. In this study, to evaluate whether gap creation can help achieve canopy recruitment for sustainable management, we analyzed the species diversity patterns of woody plant regeneration, growth status and the spatial distribution of Chinese pine regeneration in three control plots (C, 10 × 10 m) and four classes of gaps seven years after gap creation. The diameters of the gap classes were 1.00 (G-I, 10.0 m), 1.25 (G-II, 12.5 m), 1.50 (G-III, 15.0 m), and 1.75 (G-IV, 17.5 m) times the mean canopy height. There were no differences in diversity patterns between the tested gap sizes, between gaps and under the canopy, this finding may be attributed to trees and shrubs require a relatively long time to become established. Although gap size had no influence on the density of Total (all regeneration), it significantly decreased and increased the density of seedlings (height ≤ 100 cm) and saplings (height > 100 cm), respectively, along the gap size gradient, which likely resulted from the differences between these two categories of regeneration in terms of shade tolerance and resource requirements. Similarly, the height, ground diameter and height growth of Total, seedlings and saplings in the current year showed positive responses to gap size. All gap size classes showed approximately normal height and ground diameter distributions, with a longer tail toward larger individuals with greater gap sizes. These results suggested that Chinese pine can be managed by gap creation in plantations, especially when combined with gradual gap expansion. In addition, Total and seedlings showed mostly random patterns across all scales, with aggregation at smaller scales, and the percentage of random patterns of saplings was greater than that of seedlings for all gap sizes. These differences in spatial patterns may have been associated with the survival strategies of tree species and the density-dependent processes. Further monitoring and gap expansion will likely be required to determine the long-term efficacy of gap creation to ensure successful canopy recruitment and to maintain sustainable management. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64306
Appears in Collections: 影响、适应和脆弱性
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作者单位: Key Laboratory for Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, No. 35, Qinghua East Road, Beijing, China; National Energy R & D Center for Non-Food Biomass, Beijing Forestry University, No. 35, Qinghua East Road, Beijing, China; National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, No. 35, Qinghua East Road, Beijing, China
Recommended Citation:
Wang Z.,Yang H.,Dong B.,et al. Regeneration response to canopy gap size in a Chinese pine plantation: Species diversity patterns, size structures and spatial distributions[J]. Forest Ecology and Management,2017-01-01,397