DOI: 10.1016/j.foreco.2014.08.041
Scopus记录号: 2-s2.0-84949132279
论文题名: A model relating transpiration for Japanese cedar and cypress plantations with stand structure
作者: Komatsu H. ; Shinohara Y. ; Kumagai T. ; Kume T. ; Tsuruta K. ; Xiang Y. ; Ichihashi R. ; Tateishi M. ; Shimizu T. ; Miyazawa Y. ; Nogata M. ; Laplace S. ; Han T. ; Chiu C.-W. ; Ogura A. ; Saito T. ; Otsuki K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 334 起始页码: 301
结束页码: 312
语种: 英语
英文关键词: Canopy conductance
; Forest structure
; Model
; Sapwood area
; Simplified penman-monteith equation
; Transpiration
Scopus关键词: Models
; Transpiration
; Wood products
; Annual water balance
; Canopy conductance
; Forest structure
; Meteorological factors
; Penman-Monteith equations
; Sapwood area
; Structural parameter
; Vapor pressure deficit
; Forestry
; coniferous tree
; data set
; ecological modeling
; Penman-Monteith equation
; reproduction
; stand structure
; transpiration
; Equations
; Forest Canopy
; Models
; Structures
; Transpiration
; Cryptomeria japonica
; Cupressus
英文摘要: Previous studies have revealed that changes in forest structure due to management (e.g., thinning, aging, and clearcutting) could affect the forest water balance. However, there are unexplained variability in changes in the annual water balance with changing structure among different sites. This is the case even when analyzing data for specific species/regions. For a more advanced and process-based understanding of changes in the water balance with changing forest structure, we examined transpiration (E) observed using the sap-flux method for 14 Japanese cedar and cypress plantations with various structure (e.g., stem density and diameter) in Japan and surrounding areas and developed a model relating E with structural parameters. We expressed E using the simplified Penman-Monteith equation and modeled canopy conductance (Gc) as a product of reference Gc (Gcref) when vapor pressure deficit is 1.0. kPa and functions expressing the responses of Gc to meteorological factors. We determined Gcref and parameters of the functions for the sites separately. E observed for the 14 sites was not reproduced well by the model when using mean values of Gcref and the parameters among the sites. However, E observed for the sites was reproduced well when using Gcref determined for each site and mean values of the parameters of the functions among the sites, similar to the case when using Gcref and the parameters of the functions determined for each site. These results suggest that considering variations in Gcref among the sites was important to reproduce variations in E, but considering variations in the parameters of the functions was not. Our analysis revealed that Gcref linearly related with the sapwood area on a stand scale (A) and that A linearly related with stem density (N) and powers of the mean stem diameter (dm). Thus, we proposed a model relating E with A (or N and dm), where Gcref was calculated from A (or N and dm) and the parameters of the functions were assumed to be the mean values among the sites. This model estimates changes in E with changing structure from commonly available data (N and dm), and therefore helps improve our understanding of the underlying processes of the changes in the water balance for Japanese cedar and cypress plantations. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65694
Appears in Collections: 影响、适应和脆弱性
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作者单位: The Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan; Graduate School of Agriculture, Kyoto University, Kyoto, Japan; Faculty of Agriculture, Kyushu University, Fukuoka, Japan; Hydrospheric Atmospheric Research Center, Nagoya University, Chikusa-ku, Nagoya, Japan; School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan; Kasuya Research Forest, Kyushu University, Fukuoka, Japan; Forestry and Forest Products Research Institute, Matsunosato, Tsukuba, Ibaraki, Japan; Research Institute for East Asia Environments, Kyushu University, Motooka, Fukuoka, Japan; Ishikawa-ken Forest Experimental Station, Ishikawa, Japan
Recommended Citation:
Komatsu H.,Shinohara Y.,Kumagai T.,et al. A model relating transpiration for Japanese cedar and cypress plantations with stand structure[J]. Forest Ecology and Management,2014-01-01,334