| 关于降雨对空气中浮游孢子携落率的计算及其流行学效应的初步研究 |
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| 引用本文： | 杨信东,张佳环,刘学敏,陈秋元. 关于降雨对空气中浮游孢子携落率的计算及其流行学效应的初步研究[J]. 吉林农业大学学报, 1993, 0(4) |
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| 作者姓名： | 杨信东 张佳环 刘学敏 陈秋元 |
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| 作者单位： | 吉林农业大学农学系 长春130118(杨信东，张佳环，刘学敏)，吉林农业大学农学系 长春130118(陈秋元) |
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| 摘 要： | 本文研究了降雨对空气中浮游孢子携落率的计算问题,提出了根据降雨量(M)、持续降雨时间(H)来计算降雨对空气中浮游孢子携落率(Y)的公式;令D=1.24(M/H)~(0.182),则Y=1-EXP(-1.5M/D)。根据部分资料估计了真菌气传病害的空中浮游孢子与植物叶表附着孢子的比率(R)约为1～5:1,由此可推算因降雨对空气中浮游孢子的携落作用和对植物表面附着孢子的冲刷作用(冲刷率为W)的综合结果,使植物表面附着孢子数变为原来的(1+R·Y)(1-W)倍。
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| 关 键 词： | 降雨 浮游孢子的携落率 植病流行 |
A Preliminary Study On Calculating Rate Of Floating Spores Falling Asscociated With Rain In Air And Effect Of Disease Epidemic |
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| Yang Xindong. A Preliminary Study On Calculating Rate Of Floating Spores Falling Asscociated With Rain In Air And Effect Of Disease Epidemic[J]. Journal of Jilin Agricultural University, 1993, 0(4) |
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| Authors: | Yang Xindong |
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| Affiliation: | Yang Xindong |
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| Abstract: | In this paper, the calculation of the rate od floating spores in the air falling associated with rainfall was studied. An equations was built as D= 1. 24(M/H)0-182, thus Y= 1 - EXP(- I. 5M/D) , where M(mm) and H(hr) respectively present the rainfall and duration of rainfall lasting. The tentative results showed that the rate(R) between the number of the spores floating in the air and adhering to the surface of plants was I - 5:1. Because the floating spores fell together with rainfall, the number of the spores on the surface of the plants increased to I +R * Y times as many as the former. When W Stands for the rate of washout spores from surface of plant. thus the sum number of spores on the surface of plant(s) was calculated by using the formula; S = (1+R* Y)(l-W). |
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| Keywords: | rain rate of floating spores associated with rain epidemic of the plant disease |
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