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Simulation and analysis of canopy interception on Pinus tabulaeformis plantations in semi-arid areas of the Loess Plateau |
Yin Zhunsheng, Sun Changzhong, Zhao Mingyang, Wang Lei |
Forestry Experiment Center of North China, Chinese Academy of Forestry, 102300, Beijing, China |
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Abstract We investigated the rainfall redistribution of canopy on Pinus tabulaeformis plantations in the semi-arid areas of the Loess Plateau based on the data collected from 2012 to 2013 using the permanent plot method. The canopy interception was simulated separately by using Wang's and Cui's interception models, and the applicability of the two models were compared. The results showed that: 1) There was a linear relationship between rainfall and throughfall (R2 = 0.978 9), but an exponential relationship between rainfall and canopy interception (R2 = 0.867 3), and the average of interception rate was 25.5%. 2) The determination coefficient of Wang's interception model was 0.724 5 and it was 0.755 4 for Cui's. In general, Cui's interception model was slightly better than Wang's.
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Received: 16 September 2014
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