[Turbulent characteristics in forest canopy under atmospheric neutral condition].
Ying Yong Sheng Tai Xue Bao
; 21(2): 294-9, 2010 Feb.
Article
en Zh
| MEDLINE
| ID: mdl-20461996
ABSTRACT
Based on the micrometeorological data of broad-leaved Korean pine forest in Changbai Mountain in 2003, a second-order closure model was employed to calculate and analyze the turbulent characteristics within and above the canopy of the forest. The calculated mean wind profile was coincident with the measured one. The Reynolds stress within the forest was significantly attenuated. The turbulent strength, velocity flux, and skew were the largest at forest-atmosphere interface, as well the wind shear. With the increase of velocity skew, the turbulent intermittence became more significant, and the downward turbulent eddy within the canopy was limited. Most of the turbulent deeply within the forest canopy was produced by the non-local contributions above the canopy.
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Bases de datos:
MEDLINE
Asunto principal:
Atmósfera
/
Ecosistema
/
Transpiración de Plantas
/
Pinus
/
Modelos Teóricos
Tipo de estudio:
Prognostic_studies
País/Región como asunto:
Asia
Idioma:
Zh
Revista:
Ying Yong Sheng Tai Xue Bao
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2010
Tipo del documento:
Article
País de afiliación:
China