A5047186847- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Tree Root and Stability Studies
- Hydrology and Watershed Management Studies
- Soil and Water Nutrient Dynamics
- Biopolymer Synthesis and Applications
- Leaf Properties and Growth Measurement
- Cardiac Ischemia and Reperfusion
- Seedling growth and survival studies
- Soil erosion and sediment transport
- Particle Detector Development and Performance
- Tree-ring climate responses
- Astrophysics and Cosmic Phenomena
- Atmospheric chemistry and aerosols
- Ecology and Conservation Studies
- Fire effects on ecosystems
- Hydrology and Sediment Transport Processes
- Plant responses to elevated CO2
- Lightning and Electromagnetic Phenomena
- Plant Physiology and Cultivation Studies
- Soil and Unsaturated Flow
- Ultrasound and Hyperthermia Applications
- Forest Ecology and Biodiversity Studies
- Biological Activity of Diterpenoids and Biflavonoids
- Erosion and Abrasive Machining
Forestry and Forest Products Research Institute
2018-2019
Forest Research
2019
Kyushu University
2013-2018
Nagoya University
2013-2017
Max Planck Institute for Physics
2008-2014
Max Planck Society
2011
The University of Tokyo
2007-2009
College of Industrial Technology
2008
Osaka University
2004-2007
Waseda University
2003
ABSTRACT Changes in leaf water relations under stress were examined. In experiment 1, was imposed by withholding irrigation to potted seedlings of deciduous oak, Quercus crispula and Q. serrata . the pressure–volume (P–V) curve mature leaves followed. The potential at turgor loss (Ψ l,tlp ) significantly decreased after 13 d drought treatment. bulk elastic modulus ( ɛ decreased, which contributed maintenance cell together with decrease osmotic potential. 2, notching a branch tree. After...
We examined the relationship between bulk elastic modulus (epsilon) of an individual leaf obtained by pressure-volume (P-V) technique and mechanical properties cell walls in leaf. The plants used were Quercus glauca Q. serrata, evergreen a deciduous broad-leaved tree species, respectively. compared epsilon Young's specimens determined stretch at various stages their development. results showed that increased from approximately 5 to 20 MPa during development, although other potential...
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...
Abstract In this paper, we present an investigation of interspecies differences in transpiration the 2 most common plantation forest tree species Japan, both family Cupressaceae with different northern limits native distribution, Japanese cypress (Hinoki; Chamaecyparis obtusa Sieb. et Zucc.) and cedar (Sugi; Cryptomeria japonica D. Don). The stem sap flow rate was measured nearby stands similar leaf area index a 42‐year‐old plantation. Single‐tree stand‐scale rates ( E tre sta ,...
Japanese cedar () and cypress plantations account for approximately 30% of the total forested area in Japan. Both are arbuscular mycorrhizal trees that leach more NO response to nitrogen (N) deposition than do forests ectomycorrhizal trees. However, little information is available about size N exports from these plantations. The aim this study was evaluate nonpoint source a N-saturated plantation. We collected stream water samples base-flow (25 samples) storm-flow conditions (20 events)...
Tropospheric ozone (O3) concentration has been increasing. The aim of this study was to compare the effect O3 exposure on monoterpene emission rate and components Japanese cedar (Cryptomeria japonica) between three major gene pools identified by population genetic structure analysis. At O3-FACE (Free-Air CO2 Enrichment) facility, 1-year saplings clones (Donden, Kawazu, Yakushima) were exposed ambient double concentrations O3. After 15 months experiment, characteristics evaluated branch...
To clarify mechanisms underlying variation in transpiration rate among deciduous broad-leaved tree species, we measured diurnal changes stomatal conductance (gs) and leaf water potential, calculated the maximum (Emax), leaf-specific hydraulic (K(s-l)) difference between soil potential daily minimum (Psis - Psi(l,min)). Pressure-volume (P-V) measurements were made on leaves. Saplings of eight species that are common Japanese cool temperate forests studied. Maximum varied significantly...
Abstract This study offers an unprecedented opportunity to estimate total sapwood area over entire catchment ( A scat / g ) using small‐footprint light detection and ranging technology with a minimal amount of labour in field. Forty‐two‐year‐old plantations Japanese cypress (Hinoki; Chamaecyparis obtusa Sieb. et Zucc.) cedar (Sugi; Cryptomeria japonica D. Don) vegetated the 2.98 ha experimental catchment. Field observations identified diameter at breast height (DBH) all trees produced...
The Tibet air shower array, which has an effective area of 36,900 m2, been in operation at Yangbajing Tibet, China altitude 4,300 m above sea level. In this paper, we will briefly introduce the recent gamma-ray observation with present array and our future plan is called muon detector (MD) project.
Headwaters contribute a substantial part of the flow in river networks. However, spatial variations streamflow generation processes steep headwaters have not been well studied. In this study, we examined spatio-temporal variation 2.98-ha headwater catchment. The time when baseflow upstream section exceeded that downstream was coincident with riparian groundwater switched from downwelling to upwelling. This suggests upwelling increased considerably during wet period, producing shift relative...
Objectives: There has been no method which can measure regional myocardial blood flow in real-time and continuously. The purpose of this study was to validate measurement using a thermal diffusion method. For purpose, performed the electrolytic hydrogen clearance Methods: Seven pigs were used for study, six comparison between methods, one demonstration on beating heart coronary artery bypass model with ischemic preconditioning. Results: A good correlation found values obtained by 1/V probe,...
This study examined the changes in rainfall-runoff characteristics year prior to and after intensive thinning of 50% number a steep headwater catchment, covered with 46-year-old Japanese cedar cypress western Japan. The magnitude event peak flow, quick water yield, response time did not change thinning. Because 70% rainfall events had multiple flow peaks, relationships between each just that were also analyzed. increases accumulated rise drop significant following increased, led lower...
Background and AimsThis study aimed at clarifying how the water potential gradient (ΔΨ) is maintained in shoots of evergreen trees with expanding leaves, whose leaf potentials turgor loss point (Ψtlp) are generally high.
Fifteen patients with acute ruptured intracranial aneurysms were treated interlocking detachable coil (IDC) embolization. All graded poorly, i.e., Hunt & Kosnik grades IV and V. Aneurysm occurred in the anterior circulation 14 at basilar tip one, of these, 13 small 2 large. The endovascular procedure was conducted a transfemoral approach under local anesthesia. Aneurysmal obliteration examined transitionally after Final outcome evaluated using Glasgow scale (GOS). Total aneurysmal...
The effects of the calcium channel blockers verapamil, diltiazem, prenylamine and nifedipine on ACTH- cAMP-mediated pathway for steroidogenesis in a suspension solution isolated rat adrenal cells were studied. Steroidogenesis stimulated by ACTH (10(-10) M) or cAMP (10(-3) was not inhibited (10(-4) M), but strongly concentration-dependent manner diltiazem (10(-5) to 10(-4) M).
M. Amenomori1, X. J. Bi2, D. Chen3, T. L. Chen4, W. Y. Chen2, S. Cui5, Danzengluobu4, K. Ding2, C. F. Feng6, Zhaoyang Feng2, Z. Feng7, Q. B. Gou2, Guo2, H. He2, He5, Hibino8, N. Hotta9, Haibing Hu4, Hu2, Huang2, Jia7, Jiang2, Kajino10, Kasahara11, Katayose12, Kato13, Kawata14, Kozai13, Labaciren4, G. Le2, A. Li15,6,2, Li4, Li2,7, Liu2, Liu4, Lu2, R. Meng4, Mizutani11,16, Munakata13, Nanjo1, Nishizawa17, Ohnishi14, I. Ohta18, Ozawa11, Qian6,2, Qu19,2, Saito20, Saito21, Sakata10, Sako14,...