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[1]REN Liang,REN Shu-mei,YANG Pei-ling,et al.Canopy Distribution of Precipitation and Simulation of Apricot Forests[J].Research of Soil and Water Conservation,2010,17(01):183-187.

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Canopy Distribution of Precipitation and Simulation of Apricot Forests

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 01 Page number: 183-187 Column: Public date: 2010-02-20

Title:: Canopy Distribution of Precipitation and Simulation of Apricot Forests

Author(s):: REN Liang¹, REN Shu-mei², YANG Pei-ling¹, LI Xian-yue¹; 1. College of Water Conservancy & Civil Engineering, China Agricultural University, Beijing, 100083, China;
2. Bereau of Comprehensive Development Ministry of Water Resources, Beijing, 100053, China;
3. Inner Mongolia Agricultural University, Hohhot, 010018, China

Keywords:: Beijing suburbs Apricot forests; rainfall interception; the improved Horton model

CLC:: S161.41

DOI:: -

Abstract:: Canopy interception affect the fruit trees on the effective use of rainfall directly,the relationships between canopy interception of Apricot forests and rainfall were studied by field survey and statistical analysis.Results show that the total rainfall was 528.9 mm from June to September in 2008.The rainfall was redistributed by the proportion of throughfall 83.2%,interception 16.0% and stemflow 0.8% respectively.The results show that the relationship between throughfall and total rainfal1 is linear and the relationship between throughfall and interception is Logarithm.Using the improved Horton model,in which the parameter I_cm^* means rainfall adsorption capacity of canopy(2.139 mm) and α means coefficient of canopy evaporation for this region(6.7%).The improved Horton model explain the law of crown interception composed of three physical processes(adsorption,soakage and evaporation).Simulated values and measured values have a better consistency for a period of time.We conclude that the improved Horton model can be used for estimating canopy water interception in Beijing suburbs Apricot forests.

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