MEASURING AND MODELING THE - TRANSPIRATION OF A MARITIME PINE CANOPY FROM SAP-FLOW DATA
MEASURING AND MODELING THE - TRANSPIRATION OF A MARITIME PINE CANOPY FROM SAP-FLOW DATA
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DOI：
10.1016/0168-1923(94)90100-7
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发表时间：
1994-10-01
影响因子：
6.2
通讯作者：
LOUSTAU, D
中科院分区：
文献类型：
--
作者：
GRANIER, A;LOUSTAU, D
海洋松树冠层的蒸腾作用，确定从SAP如何测量进行了三个实验，两个网站在Landes de Gascogne森林，法国西南部。从这些数据中，冠层气孔导度估计通过反演Penman-Monteith方程，冠层电导模型，其中包括空气蒸汽压赤字，土壤水分亏缺和辐照度的影响进行了测试。将模型模拟的3个试验点的冠层蒸腾量与实测值进行了比较。冠层气孔导度对大气水汽压亏缺、土壤水分亏缺和总辐射的敏感性降低。蒸腾速率的预测值与实测值的一致性（R（2）= 0.83-0.87）比冠层气孔导度的预测值（R（2）= 0.50-0.78）好。模型模拟的日蒸腾量与实测值吻合较好（R（2）= 0.85-0.93）。
The transpiration of a maritime pine canopy was determined from sap-how measurements obtained from three experiments carried out al, two sites in the Landes de Gascogne Forest, southwest France. From these data, the canopy stomatal conductance was estimated by inverting the Penman-Monteith equation, and a canopy conductance model which included the effects of air vapour pressure deficit, soil moisture deficit and irradiance was tested. Values of canopy transpiration simulated by the model for the three sites were compared with field data. The canopy stomatal conductance was decreasingly sensitive to air vapour pressure deficit, soil moisture deficit and global irradiance. There was better agreement between predicted and actual data for transpiration (R(2) = 0.83-0.87) than for canopy stomatal conductance (R(2) = 0.50-0.78). Values of daily transpiration simulated by the model were in good agreement with field data (R(2) = 0.85-0.93).