ENERGY-BALANCE AND EVAPOTRANSPIRATION FROM A SUB-ARCTIC FOREST

被引：72

作者：

LAFLEUR, PM

机构：

[1] Department of Geography, Trent University, Peterborough

来源：

AGRICULTURAL AND FOREST METEOROLOGY | 1992年 / 58卷 / 3-4期

关键词：

D O I：

10.1016/0168-1923(92)90059-D

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Measurements of energy balance components were made over subarctic forest near Churchill, Manitoba, Canada, during summer 1989. For the study, soil heat storage comprised 9% of net radiation, and the sensible and latent heat fluxes were of similar magnitude. However, on a daily basis the Bowen ratio varied considerably around an overall mean of 0.94. Canopy transpiration was computed from measurements of leaf conductance and vapour pressure deficit. These results indicated that, on average, only 20% of the total evaporation flux originated from the tree canopy.

引用

页码：163 / 175

页数：13

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