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应用基于过程的碳水耦合多层模型对长白山阔叶红松林冠层蒸腾量进行了模拟和模型验证,并模拟了冠层蒸腾量对未来气候变化的响应.结果表明:多层模型可以较好地模拟长白山阔叶红松林冠层蒸腾量,模拟值与涡动相关技术观测的实测值拟合较好.冠层蒸腾对气候变化响应的模拟显示,气温升高,潜热通量(LE)增加;土壤含水量减少,LE减少;大气CO2浓度增加,LE减少.在研究假定的气候变化情景下,LE对0～20 cm土壤含水量减少10%、CO2浓度增加190μmol·mol-1的联合变化的响应最敏感,对气温增加3.6℃、土壤含水量减少10%的联合变化的响应不敏感.
The process-based multi-layer coupled model of water-carbon coupling was used to simulate and model the canopy transpiration of the broad-leaved Korean pine forest in Changbai Mountain and to simulate the response of canopy transpiration to future climate change.The results show that the multi- Simulation of the canopy transpiration of the broad-leaved Korean pine forest in Changbai Mountains showed that the simulated values fitted well with the observed values of the related eddy-related techniques. Simulation of the response of the canopy transpiration to climate change showed that the air temperature increased and the latent heat flux (LE) increased. Soil moisture decreased and LE decreased while atmospheric CO2 concentration increased and LE decreased.Under the assumed climate change scenarios, the combination of LE with 10% reduction of soil moisture at 0 ~ 20 cm and 190 μmol · mol-1 of CO2 concentration Responsive to the most sensitive, insensitive to response to combined changes in air temperature increase of 3.6 ° C and soil moisture reduction of 10%.