منابع مشابه
Ammonia exchange potential within a grass canopy
Vertical structure and diurnal variability of ammonia exchange potential within an intensively managed grass canopy B. Herrmann, M. Mattsson, S. Jones, P. Cellier, C. Milford, M. A. Sutton, J. K. Schjoerring, and A. Neftel Agroscope Reckenholz-Tänikon Research Station ART, Zürich, Switzerland Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Copenhagen, Denm...
متن کاملA comparative study of mass and energy exchange over a closed C3 (wheat) and an open C4 (corn) canopy: I. The partitioning of available energy into latent and sensible heat exchange
Eddy correlation measurements of mass and energy were made simultaneously over a closed wheat and an open corn crop. This combination of crops, differing in canopy coverage and stomatal physiology, facilitated an investigation on how surface and environmental variables control the partitioning of net radiation into sensible, latent and soil heat exchange. Contrasts in canopy closure had a minor...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
متن کاملLeaf area distribution and radiative transfer in open-canopy forests: implications for mass and energy exchange.
Leaf area and its spatial distribution are key canopy parameters needed to model the radiation regime within a forest and to compute the mass and energy exchange between a forest and the atmosphere. A much larger proportion of available net radiation is received at the forest floor in open-canopy forests than in closed-canopy forests. The proportion of ecosystem water vapor exchange (lambda E) ...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 1975
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps75-110