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当前位置: 首页 > 文章 > Gash模型对冀北山地人工油松林树干径流特征的模拟 甘肃农业大学学报 2016,51 (2) 88-92
Position: Home > Articles > Study on simulation of Gash model to stemflow of planted pinus forests in mountain of northern of Hebei Journal of Gansu Agricultural University 2016,51 (2) 88-92

Gash模型对冀北山地人工油松林树干径流特征的模拟

作  者：
梁文俊;魏曦;朱宝才
单  位：
山西农业大学林学院;交通运输部科学研究院交通信息中心
关键词：
油松人工林;树干径流;Gash模型;冀北山地
摘  要：
【目的】为了更好地研究冀北地区水文特征,验证Gash模型对该地区树干径流的模拟效果.【方法】通过长期野外样地监测和室内数据处理,对油松人工林林外降雨与林内穿透雨、林冠截留、树干径流进行拟合,运用Gash模型对该林分树干径流进行模拟.【结果】2013年围场油松人工林林内降雨量、树干截留和树干径流分别占降水量的69.75%,26.87%,3.38%,树干径流比例不大.模型对该林分树干径流模拟的整体效果一般,实测值和模拟值分别为0.73mm和0.55mm,相对误差为24.5%.【结论】Gash修正模型基本上能够反映该地区的树干径流实际情况,在该地区具有较好的适用性.
译  名：
Study on simulation of Gash model to stemflow of planted pinus forests in mountain of northern of Hebei
作  者：
LIANG Wen-jun;WEI Xi;ZHU Bao-cai;College of Forestry,Shanxi Agricultural University;Information Centre of Transportation ,China Academy of Transportation Sciences;
关键词：
artificial Pinus tabulaeformis plantation;;stemflow;;Gash model;;mountain of northern Hebei
摘  要：
【Objective】In order to study hydrological characteristics in mountain of Northern of Hebei,verified Gash model in the region stemflow simulation effect.【Method】Used field plots monitoring in a long-term and indoor data analysis,to fit the relationship of rainfall,throughfall,steamflow and canopy interception.In addition,Gash model was used to simulation the steamflow.【Result】The results showed that the rainfall,canopy interception and stemflow accounted for 69.75%,26.87%,3.38% of gross rainfall,while the stemflow was small.Because of the basic of characteristic stemflow,simulation of stemflow agree well with the measured values for the growing season.The values of simulation and observed were0.73 mm and 0.55 mm,the relative differences between the Gash modeling results and field measurements were 24.5%.【Conclusion】It is suggested that the Gash analytic model could be used for estimating stemflow interception in this area.

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