Changes in canopy transpiration of Japanese cypress and Japanese cedar plantations because of selective thinning

• DOI: 10.1002/hyp.10700
• Publication Date: 2015-09-30T00:19:31Z
• Authors: Makiko Tateishi; Yang Xiang; Takami Saito; Kyoichi Otsuki; Tamao Kasahara
• Keywords: Thinning; Chamaecyparis; Cryptomeria; Canopy conductance; Stomatal Conductance

Abstract Canopy transpiration ( E stand ) is a main component of forest water cycle, and management including thinning affects canopy , yet few studies have examined the changes in . In this study, we investigated after Chamaecyparis obtusa Cryptomeria japonica stands by 50% their stems. The was estimated using sap flow measurements Granier‐type thermal dissipation probes. mean density J S as high that before both plots. Under same conditions microclimate, decreased 44.0 21.2% for Ch. plot Cr. plot, respectively. reduced sapwood area 44.5% 34.2% plot. decreases were similar to decline area, which indicates primary cause reduction area. reference conductance G cref 52.7% 75.3% lower respectively, whereas stomatal sensitivity vapour pressure deficit periods. Thus, associated with resulting decrease Copyright © 2015 John Wiley & Sons, Ltd.