Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 34
Book Description
(BOREAS) BOREAS TE-7 Sap Flow Data
Author: BOREAS TE-7 Dendrology Data
Author: Boreas Te-7 SAP Flow Data
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781726135900
Category :
Languages : en
Pages : 32
Book Description
The BOREAS TE-7 team collected data sets in support of its efforts to characterize and interpret information on the sap flow of boreal vegetation. The heat pulse method was used to monitor sap flow and to estimate rates of transpiration from aspen, black spruce, and mixed wood forests at the SSAOA, MIX, SSA-OBS. and Batoche sites in Saskatchewan, Canada. Measurements were made at the various sites from May to October 1994, May to October 1995, and April to October 1996. A scaling procedure was used to estimate canopy transpiration rates from the sap flow measurements. The data were stored in tabular ASCII files. Analyses to date show a tendency for sap flow in aspen to remain remarkably constant over a wide range of environmental conditions VPD from 1.0 to 4.8 kPa and solar radiation less than 400 W/sq m). For forests with high aerodynamic conductance, the results would indicate an inverse relationship between stomatal conductance and VPD, for VPD greater than 1 kPa. A possible interpretation is that stomata are operating to maintain leaf water potentials above a critical minimum value, which in turn places a maximum value on the rate of sap flow that can be sustained by the tree. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distrobuted Activity Archive Center (DAAC).Hall, Forrest G. (Editor) and Papagno, Andrea (Editor) and Hogg, E. H. and Hurdle, P. A.Goddard Space Flight CenterDATA ACQUISITION; VEGETATION; WATER; TRANSPIRATION; FLOW VELOCITY; FLOW MEASUREMENT; TABLES (DATA); WOOD; SOLAR RADIATION; FORESTS; CONIFERS; SASKATCHEWAN
(boreas) Boreas Te-7 SAP Flow Data
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781720354147
Category :
Languages : en
Pages : 32
Book Description
The BOREAS TE-7 team collected data sets in support of its efforts to characterize and interpret information on the sap flow of boreal vegetation. The heat pulse method was used to monitor sap flow and to estimate rates of transpiration from aspen, black spruce, and mixed wood forests at the SSAOA, MIX, SSA-OBS. and Batoche sites in Saskatchewan, Canada. Measurements were made at the various sites from May to October 1994, May to October 1995, and April to October 1996. A scaling procedure was used to estimate canopy transpiration rates from the sap flow measurements. The data were stored in tabular ASCII files. Analyses to date show a tendency for sap flow in aspen to remain remarkably constant over a wide range of environmental conditions VPD from 1.0 to 4.8 kPa and solar radiation less than 400 W/sq m). For forests with high aerodynamic conductance, the results would indicate an inverse relationship between stomatal conductance and VPD, for VPD greater than 1 kPa. A possible interpretation is that stomata are operating to maintain leaf water potentials above a critical minimum value, which in turn places a maximum value on the rate of sap flow that can be sustained by the tree. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distrobuted Activity Archive Center (DAAC).Hall, Forrest G. (Editor) and Papagno, Andrea (Editor) and Hogg, E. H. and Hurdle, P. A.Goddard Space Flight CenterDATA ACQUISITION; VEGETATION; WATER; TRANSPIRATION; FLOW VELOCITY; FLOW MEASUREMENT; TABLES (DATA); WOOD; SOLAR RADIATION; FORESTS; CONIFERS; SASKATCHEWAN
BOREAS TE-11 Sap Flow Data
Author: BOREAS TE-11 Leaf Gas Exchange Measurements
Author: Canadian Journal of Forest Research
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 810
Book Description
Beans, Bullets, and Black Oil
Author: Worrall Reed CarterPublisher:
ISBN:
Category : Logistics, Naval
Languages : en
Pages : 514
Book Description
Vegetation, Water, Humans and the Climate
Author: Pavel KabatPublisher: Springer Science & Business Media
ISBN: 3642189482
Category : Science
Languages : en
Pages : 565
Book Description
A state-of-the-art overview of the influence of terrestrial vegetation and soils within the Earth system. The text deals especially with interactions between the terrestrial biosphere and the atmosphere via the hydrological cycle and their interlinkage with anthropogenic activities. Measurements gathered in integrated field experiments in the Sahel, the Amazon, North America and South-east Asia confirm the importance of these interactions. Observations are complemented by modelling studies, including regional models that simulate flows and transport in river catchments, coupled land-cover and regional climate systems, and Earth-system and global circulation models. Water, nutrient and sediment fluxes in river basins are also discussed and are shown to be highly impacted and regulated by humans through land use, pollution and river engineering. Finally, the book discusses environmental vulnerability and methodologies for assessing the risks associated with regional and global climatic and environmental variability and change. The results reported in this book are based on the research work of many individual scientists and teams around the world associated with the objectives of the IGBP-BAHC and WCRP-GEWEX international research programmes.
Plants and Microclimate
Author: Hamlyn G. JonesPublisher: Cambridge University Press
ISBN: 9780521425247
Category : Gardening
Languages : en
Pages : 460
Book Description
A STUDY OF PLANTS-CLIMATE AND THE IMPACTS OF CHANGE UPON VEGETATION.