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1. Allometric model of the Reineke equation for Japanese cypress (Chamaecyparis obtusa) and red pine (Pinus densiflora) stands

Author:
Inoue, Akio; Miyake, Marie; Nishizono, Tomohiro
Source:
Journal of forest research 2004 v.9 no.4 pp. 319-324
ISSN:
1610-7403
Subject:
Chamaecyparis obtusa; Pinus densiflora; allometry; equations; models; stand density; tree crown; trees
Abstract:
... An allometric model that explains the mechanism of the difference in the slope of the Reineke equation (A) among species was proposed based on the allometric relationships of mean tree height (H) to quadratic mean diameter D (H ∝ Dᶿ) and stand density N (H ∝ Nᵟ), i.e., A = θ/δ. The proposed model was fitted to Japanese cypress (Chamaecyparis obtusa Endl.) and red pine (Pinus densiflora) stands. Th ...
DOI:
10.1007/s10310-004-0084-0

2. Selection of tree species for plantations in Japan

Author:
Fujikake, I.
Source:
Forest policy and economics 2007 v.9 no.7 pp. 811-821
ISSN:
1389-9341
Subject:
estimation; equations; models; Cryptomeria japonica; regression analysis; trees; stumpage; wage rates; forest plantations; Chamaecyparis obtusa; Japan
DOI:
10.1016/j.forpol.2006.03.009

3. Allometric model of the maximum size–density relationship between stem surface area and stand density

Author:
Inoue, Akio
Source:
Journal of forest research 2009 v.14 no.5 pp. 268-275
ISSN:
1610-7403
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; models; pure stands; stand density; surface area; trees
Abstract:
... An allometric model of the maximum size–density relationship between mean stem surface area and stand density is proposed, and is fitted to data for even-aged pure stands of Japanese cedar (Cryptomeria japonica D. Don) and Japanese cypress (Chamaecyparis obtusa Endl.). To derive the model, the biomass density was defined as the ratio of the mean stem surface area to the side area of an imaginary c ...
DOI:
10.1007/s10310-009-0128-6

4. Aboveground biomass equations for individual trees of Cryptomeria japonica, Chamaecyparis obtusa and Larix kaempferi in Japan

Author:
Hosoda, Kazuo; Iehara, Toshiro
Source:
Journal of forest research 2010 v.15 no.5 pp. 299-306
ISSN:
1610-7403
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; Larix kaempferi; aboveground biomass; equations; leaves; models; pure stands; regression analysis; tree and stand measurements; trees; Japan
Abstract:
... Generic equations are proposed for stem, branch and foliage biomass of individual trees in even-aged pure stands of Cryptomeria japonica, Chamaecyparis obtusa and Larix kaempferi. Biomass data was collected from a total of 1,016 individual trees from 247 stands throughout Japan, and five regression models were assessed by root mean square error, mean bias, fit index (FI), and AIC. The results show ...
DOI:
10.1007/s10310-010-0192-y

5. Estimation of mean tree height using small-footprint airborne LiDAR without a digital terrain model

Author:
Yamamoto, Kazukiyo; Takahashi, Tomoaki; Miyachi, Yousuke; Kondo, Naoto; Morita, Shinichi; Nakao, Motohiko; Shibayama, Takashi; Takaichi, Yoshiyuki; Tsuzuku, Masashi; Murate, Naoaki
Source:
Journal of forest research 2011 v.16 no.6 pp. 425-431
ISSN:
1610-7403
Subject:
lidar; tree crown; models; regression analysis; methodology; trees; Chamaecyparis obtusa
Abstract:
... In order to estimate mean tree height using small-footprint airborne light detection and ranging (LiDAR) data, a digital terrain model (DTM), which is a continuous elevation model of the ground surface, is usually required. However, generating accurate DTMs in mountainous forests using only the LiDAR data is laborious and time consuming, because it requires human-assisted methods, especially in th ...
DOI:
10.1007/s10310-010-0234-5

6. Tree-ring study of a Late Holocene forest buried in the Ubuka Basin, southwestern Japan

Author:
Hakozaki, Masataka; Kimura, Katsuhiko; Tsuji, Seiichiro; Suzuki, Mitsuo
ISSN:
0928-1541
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; Holocene epoch; Torreya nucifera; basins; dendrochronology; forests; growth rings; models; nutmeg; radiocarbon dating; trees; wood; Japan
Abstract:
... Buried trees in the Ubuka Basin, southwestern Japan, were investigated to identify the wood species and to build tree-ring chronologies. A total of 65 trees were collected belonging to three species: Japanese cedar (Cryptomeria japonica, 63 trees), Japanese nutmeg tree (Torreya nucifera, one tree) and Hinoki cypress (Chamaecyparis obtusa, one tree). Crossdating of the individual ring-width series ...
DOI:
10.1163/22941932-90000094

7. Forest canopy interception loss exceeds wet canopy evaporation in Japanese cypress (Hinoki) and Japanese cedar (Sugi) plantations

Author:
Saito, Takami; Matsuda, Hiroki; Komatsu, Misako; Xiang, Yang; Takahashi, Atsuhiro; Shinohara, Yoshinori; Otsuki, Kyoichi
Source:
Journal of hydrology 2013 v.507 pp. 287-299
ISSN:
0022-1694
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; droplets; evaporation; forest canopy; leaf area index; models; plantations; rain; rain intensity; stemflow; throughfall; trees
Abstract:
... The aim of this study is to evaluate rainfall partitioning at the forest canopy and reveal the physical process of canopy interception loss. Observations were conducted for 19months in neighboring stands of Chamaecyparis obtusa Sieb. et Zucc. (Hinoki) and Cryptomeria japonica D. Don (Sugi). Cumulative amounts for the period showed that portions of throughfall (TF), stemflow (SF) and interception ( ...
DOI:
10.1016/j.jhydrol.2013.09.053

8. The effect of strip thinning on tree transpiration in a Japanese cypress (Chamaecyparis obtusa Endl.) plantation

Author:
Sun, Xinchao; Onda, Yuichi; Otsuki, Kyoichi; Kato, Hiroaki; Hirata, Akiko; Gomi, Takashi
Source:
Agricultural and forest meteorology 2014 v.197 pp. 123-135
ISSN:
0168-1923
Subject:
Chamaecyparis obtusa; basins; canopy; growing season; models; photosynthesis; plantations; sap flow; stems; transpiration; trees; vapor pressure; xylem; Japan
Abstract:
... This study analyzes the effect of strip thinning on tree transpiration (Et) in a dense and mature Japanese cypress (Chamaecyparis obtusa Endl.) plantation in central Japan. Strip thinning, which removed 50% of stems, was conducted in a headwater basin in October 2011. Xylem sap flow densities (Fd) were measured using thermal dissipation (Granier-type) sensors in a 156-m2 plot before and after thin ...
DOI:
10.1016/j.agrformet.2014.06.011

9. Evaluation of light dependence of monoterpene emission and its effect on surface ozone concentration

Author:
Nishimura, Hiroshi; Shimadera, Hikari; Kondo, Akira; Bao, Hai; Shrestha, Kundan Lal; Inoue, Yoshio
Source:
Atmospheric environment 2015 v.104 pp. 143-153
ISSN:
1352-2310
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; Pinus densiflora; air quality; air temperature; atmospheric chemistry; emissions; equations; growth chambers; light intensity; models; monoterpenoids; ozone; summer; trees; weather; Japan
Abstract:
... This study evaluated the effect of light intensity on monoterpene emission from the three dominant coniferous tree species in Japan (Cryptomeria japonica, Chamaecyparis obtusa and Pinus densiflora). Monoterpene emission experiments were conducted by using a growth chamber where temperature and light intensity can be controlled. In the experiments, air temperature was set at 30 °C and light intensi ...
DOI:
10.1016/j.atmosenv.2015.01.011

10. Mathematical consideration of the pipe model theory in woody plant species

Author:
Ogawa, Kazuharu
Source:
Trees 2015 v.29 no.3 pp. 695-704
ISSN:
0931-1890
Subject:
Abies veitchii; Chamaecyparis obtusa; Cryptomeria japonica; Larix kaempferi; allometry; leaves; models; plant organs; trees; woody plants
Abstract:
... KEY MESSAGE : Using the pipe model theory, a quantitative relationship between leaves and non-green plant organs has been defined that depends on tree size. In the pipe model theory, the cumulative mass of leaves and the density of non-photosynthetic organs at depth (z) from the crown surface of a woody plant are defined as F(z) and C(z), respectively. In this study, the F(z)–C(z) relationship was ...
DOI:
10.1007/s00468-014-1147-2

11. Spatiotemporal factors affecting bark stripping of conifer trees by Asiatic black bears (Ursus thibetanus) in Japan

Author:
Kobashikawa, Shoko; Koike, Shinsuke
Source:
Forest ecology and management 2016 v.380 pp. 100-106
ISSN:
0378-1127
Subject:
Chamaecyparis obtusa; Cryptomeria japonica; Ursus thibetanus; bark; conifers; forest management; foresters; forests; growth rings; managers; models; plantations; temporal variation; tree damage; tree trunk; trees; Japan
Abstract:
... Bark stripping by Asiatic black bears (Ursus thibetanus) has a serious impact on conifer plantations in Japan, resulting in physical damage to the tree trunks and reduction of the value of the timber. The aim of this study was to clarify whether these plantations are more prone to damage by bears at particular times and sites, to more effectively prevent this damaging behavior. The study was condu ...
DOI:
10.1016/j.foreco.2016.08.042