| 用GSVAT模型研究地表/大气界面传输 |
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| 引用本文： | 莫兴国,林忠辉,刘苏峡.用GSVAT模型研究地表/大气界面传输[J].生态学报,1999,19(6):780-786. |
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| 作者姓名： | 莫兴国 林忠辉 刘苏峡 |
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| 作者单位： | 1. 中国科学院地理研究所农业生态与环境技术站
2. 中国科学院地理研究所水文室 |
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| 基金项目： | 国家自然科学基金，“95”攀登项目 |
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| 摘 要： | 用麦男水分和能量平衡资料验证了包括地下水的土壤－植被－大气水热传输模型（ＧＳＶＡＴ），结果显示，模型能较好地模拟地表／大气水热传输特征，以及土壤水分的动态变化。通过敏感性分析，探讨叶／气界面，土壤／空气界面的节水调控效应，结果发现这两个界面对水汽传输的交互影响显著，若同时增加它们的水汽传输阻力，节水效果尤其明显。
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| 关 键 词： | GSVAT模型 地表大气界面 蒸散 土壤分布 |
| 收稿时间： | 1997/3/29 0:00:00 |
| 修稿时间： | 6/5/1999 12:00:00 AM |
Gsvat for transfer among land/atmosphere interface |
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| MO Xingguo,LIN Zhonghui and LIU Suxia.Gsvat for transfer among land/atmosphere interface[J].Acta Ecologica Sinica,1999,19(6):780-786. |
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| Authors: | MO Xingguo LIN Zhonghui and LIU Suxia |
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| Institution: | Station for Agro ecology and Environmental Technology; Institute of Geography; Chinese Academy of Sciences; Beijing |
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| Abstract: | A realistic model of soil vegetation atmosphere water and energy transfer including groundwater (GSVAT)is established here. The model is validated with data obtained in winter wheat field with shallow groundwater, which is collected from recovering to maturity period lasting 71 days. The results show that GSVAT is capable of simulating energy and water exchange between land/atmosphere interface, as well as soil water dynamic movement. Through the sensitivity analysis, the impacts of resistances among the leaf/air and the soil/air interfaces on evapotranspiration is investigated. The results show that these two interfaces interact with each other, while both the resistances are enhanced, the evapotranspiration is reduced much obviously. |
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| Keywords: | GSVAT model land/atmosphere interface evapotranspiration soil moisture |
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