| 摘要: |
| 分析了目前各种农业干旱评估指标的不足,建立了能反映干旱给农业造成损失大小的农业干旱评估指标量化模型。利用该农业干旱程度评估模型,通过模拟和非参数检验对农业干旱程度的概率分布进行了研究,并利用河南省濮阳市实际资料,计算了当地农业干旱程度的概率分布。 |
| 关键词: 农业干旱程度 概率分布 评估指标 非参数检验 |
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| 基金项目:河南省高校创新人才培养工程项目(HNCX2003-17) |
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| Study on probability distribution of agricultural drought extent |
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| Abstract: |
| The quantitave model of agricultural drought evaluation was established after analyzing the present evaluation indexes.Based on this new model,which can correctly reflect the loss caused by the agricultural drought,the probability distribution of drought extent for agriculture was studied with simulated method and non-parameters inspection,and the probability distribution of local agricultural drought extent was calculated by using the actual data of Puyang city,Henan province. |
| Key words: agricultural drought extent probability distribution evaluation criteria non-parameters inspection |
