3-D NUMERICAL SIMULATION ON THE CHARACTERISTICS OF ECOLOGICAL BOUNDARY LAYER FOR AGROFOREST ECOSYSTEM

Li Xunqiang; Wang Hanjie

Vol.11, NO.1, 2000

Article Contents

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Li Xunqiang, Wang Hanjie. 3-d numerical simulation on the characteristics of ecological boundary layer for agroforest ecosystem. J Appl Meteor Sci, 2000, 11(1): 71-79.

Citation:

Li Xunqiang, Wang Hanjie. 3-d numerical simulation on the characteristics of ecological boundary layer for agroforest ecosystem. J Appl Meteor Sci, 2000, 11(1): 71-79.

Li Xunqiang, Wang Hanjie. 3-d numerical simulation on the characteristics of ecological boundary layer for agroforest ecosystem. J Appl Meteor Sci, 2000, 11(1): 71-79.

Citation:

Li Xunqiang, Wang Hanjie. 3-d numerical simulation on the characteristics of ecological boundary layer for agroforest ecosystem. J Appl Meteor Sci, 2000, 11(1): 71-79.

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3-D NUMERICAL SIMULATION ON THE CHARACTERISTICS OF ECOLOGICAL BOUNDARY LAYER FOR AGROFOREST ECOSYSTEM

Air Force Institute of Meteorology, Nanjing 211101

Received Date: 1998-08-19
Rev Recd Date: 1999-01-12
Publish Date: 2000-02-29

Abstract

Abstract

A 3-D eco-boundary layer model including to pography and vegetation effect is proposed. In comparison with the traditional meteoro logical model of boundary layer, the thermal as well as dynamic effects are considered more detailed such as the solar radiation extinction with vegetation canopy, the evaportranspiration of water vapor with stomata of leaves, heat transfer with different kinds of soils during the growing process of agroforest plants. The simulated results of the model are in good agreement with the observational data in regard to the special agroforest ecosystem in the central area of Huang-Huai-Hai plain of China.
- Agroforest ecosystem;
- Eco-boundary layer;
- Evaportranspiration;
- Turbulent kinetic energy

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References(14)

Figures and Tables

图 1 实验区概况及边界层低空探测

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图 2 地面和15 m处的温度日变化 (a) 地面 (1为观测值, 2为裸露地面区, 3为植被覆盖区) (b) 15 m处

(实线为观测值, 虚线为无植玻区, 点线为农林复合区, 横坐标为地方时, 下同)

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图 3 温度时-空剖面图

(a) 无植被区 (b) 农林复合区 (单位: ℃ )

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4a 连续3天的植物蒸发蒸腾量 (1为农林复合区, 2为无植被区) 和大气的凝结量 (3为无植被区, 4为农林复合区)

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4b 地面以上TTL高度处的大气比湿随时间变化

(实线为观测值, 虚线为无植被区, 点线为农林复合区)

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图 5 湿度时-空剖面图

(a) 无植被区 (b) 农林复合区 (单位: g/kg)

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图 6 TKE时-空剖面图 (单位: m²/s²) (a) 无植被区 (b) 农林复合区

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表 1 模式中所用参数

References

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