Characteristics of Canopy Interception of Larix kaempferi in Xiaolongshan Forest

Based on the orientational observations from April to October 2011,canopy interception characteristics of 25aLarix kaempferi plantation were studied in Xiaolong Mountain forest region.The results showed that in the total precipitation of 951.30mm from 33times observation,the canopy interception,the stemflow and the throughfall accounted for 16.63%,0.86%and 82.51%of total precipitation,respectively.Based on analysis of different rainfall classes,the higher the rainfall class,the greater the throughfall and the stemflow and the interception,the greater the throughfall ratio and stemflow ratio,and the lower the interception ratio.Under similar rainfall conditions,the higher the rainfall intensity,the lower the interception and interception ratio.It indicated that the interception and interception ratio in rainfall of short duration and high intensity were lower than that in rainfall of long duration and low intensity.Throughfall was observed when precipitation0.5mm.The rangeability of stemflow was tiny.