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本文采用云南省20年(1951—1970)降水资料,计算出七个区域的年平均降水垂直递增率为23—79毫米/100米,并绘制1300米、1700米和2000米等高面年平均降水量分布图,初步揭示了稻作区水分状况的立体特征。用各地区代表站30年(1951—1980)降水资料,通过降水保证率、相对变率和湿润状况的计算,对粳稻、籼稻和双季稻栽培上限高度的水分资源进行初步分析,并提出正确的决策。
Based on the 20 years (1951-1970) precipitation data in Yunnan Province, this paper calculates the average annual increase rate of annual average precipitation of 23-79 mm / 100 meters in seven regions and plots the average annual average height of 1300, 1700 and 2000 meters Precipitation distribution map, preliminary revealed the three-dimensional characteristics of paddy water status. By using the precipitation data from the representative stations in all regions for 30 years (1951-1980), the water resources of the maximum altitude for cultivation of japonica rice, indica rice and double cropping rice were preliminary analyzed by the calculation of precipitation guarantee rate, relative variable rate and wetting condition, Decision-making.