Ozone uptake at the canopy level in Robinia pseudoacacia in Beijing based on sap flow measurements SIMULATING SEASONAL AND INTERANNUAL VARIATIONS OF ECOSYS- TEM EVAPOTRANSPIRATION AND ITS COMPONENTS IN INNER MONG- OLIA STEPPE WITH VIP MODEL Characteristics and simulation of canopy conductance of cherry Water use of apple trees on three rootstocks measured with heat pulse technique The environmental responses and simulation of canopy conductance in a winter wheat field of North China Plain Canopy conductance characteristics of poplar in agroforestry system in west Liaoning Province of Northeast China. The sap flow dynamics of Caragana korshinskii and the influence of environmental factors in semi-arid region of the Loess Plateau