Time lag effects of rainfall inside a Platycladus Orientalis plantation forest in the Beijing Mountain Area, China Analysis on Trunk Sap Flow Time Lag Effect of Sophora japonica f. pendula Compared to Meteorological Factors Study the change of NDVI and climate factors and carrying capacity and their correlation in Maqu County, Gansu Time lag effect between poplar’s sap flow velocity and microclimate factors in agroforestry system in west Liaoning Province.