Study on Allevation Effects of Vegetation for Climatic Change

植被对气候变化的减缓作用研究

• 批准号: 06650556
• 负责人: KOBATAKE Shigeki
• 金额: $ 1.41万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650556/
• 关键词: Alleviation of climate change; heat-balance; vegetation effects; 森林効果; 温暖化

In order to develop a simulation model to estimate the role of vegetations on alleviation of climatic change, observations of temperature and wind were carried out at vicinity of forest and town. The results obtained are as follows. 1.In Summer, the difference of temperature between forest and town is constant and about 2ﾟC when solar radiation is low intensity. On the contrary, when solar radiation is high intensity, the difference of temperature changes with time and show the peak value at evening. The range of change is 3ﾟC-5ﾟC.These low temperature of forest are the alleviative effect in the climatic change. 2.In Winter, if solar radiation is low intensity, the difference is negligible. If solar radiation is high intensity, the temperature of town shows high value compared to forest in the morning. On the contrary, forest shows high value compared to town in the afternoon. This tendency is strengthened by high wind velocity. The simulation model of air flow is under construction using 3-dimensional LES model. In future, the heat-balance equations must be taken into account.

为了建立一个模拟模型来评估植被对气候变化的缓解作用，在森林和城镇附近进行了温度和风的观测。所得结果如下。1.在夏季，当太阳辐射强度较低时，林内与城镇之间的温差基本不变，约为2 ℃。反之，当太阳辐射强度较大时，温差随时间变化，在傍晚出现峰值。变化范围为3 ℃ ~ 5 ℃，这些森林低温是气候变化中的一种调节作用。2.在冬季，如果太阳辐射强度较低，则差异可以忽略不计。当太阳辐射强度较大时，早晨城镇的温度值比森林高。相反，森林在下午显示出比城镇高的价值。高风速会加强这种趋势。采用三维大涡模拟方法建立了气流的模拟模型。今后，必须考虑热平衡方程。

项目成果

Shigeki Kobatake, and others: "On the formation process of river water temperature" Annal Journal of Hydraulic Engineering, JSCE. Vol.39. 147-152 (1995)

Shigeki Kobatake等：“论河水温度的形成过程”，水利工程学报，JSCE。

M. O. Nyadawa: "Simulation of Daily Streamflows for Hydrologically Large Catchments in Drainage Area. 3, Kenya" Journal of Japan Society of Hydrology & Water Resources. Vol. 8 No. 1. 87-94 (1995)

M. O. Nyadawa：“流域水文大型集水区日流量模拟。3，肯尼亚”日本水文学会杂志

M. O. Nyadawa: "Generalized Characteristics of Intense Rainfall and Peak Discharge in Athi Basin, Kenya" Journal of Japan Society of Hydrology & Water Resources. Vol. 8, No. 1. 78-86 (1995)

M. O. Nyadawa：“肯尼亚阿蒂盆地强降雨和峰值流量的一般特征”日本水文学会杂志

M.O.Nyadawa and Shigeki Kobatake: "Generalized Characteristics of Intense Rainfall and Peak Discharge in Athi Basin, Kenya" Journal of Japan Society of Hydrology and Water Resources. Vol.8, No.1. 78-86 (1995)

M.O.Nyadawa 和 Shigeki Kobatake：“肯尼亚阿蒂盆地强降雨和峰值流量的一般特征”日本水文水资源学会杂志。

小葉竹重機: "河川水温の形成過程に関する研究" 土木学会水工学論文集. 39. 147-152 (1995)

小畠重机：《河水温度形成过程的研究》水利工程学报，日本土木工程学会 39. 147-152 (1995)。