淮河流域夏玉米生育阶段需水量及农业干旱时空特征

高超,李学文,孙艳伟,周婷,罗纲,陈财

Spatiotemporal characteristics of water requirement and agricultural drought during summer maize season in Huaihe River Basin

Chao GAO,Xue-Wen LI,Yan-Wei SUN,Ting ZHOU,Gang LUO,Cai CHEN

表1 四大类概率分布函数

Table 1 Four kinds of probability distribution functions

有界概率分布函数 Bounded probability distribution function 无界概率分布函数 Unbounded probability distribution function 非负概率分布函数 Non-negative probability distribution function 广义分布函数 Generalized distribution function Beta Cauchy Chi-Squared Gen.Extreme Value Pert Error Function Erlang Gen.Logistic Power Function Gumbel Max Exponential Gen.Pareto Triangular Gumbel Min Fatigue Life Phased Bi-Exponential Uniform Laplace Gamma Phased Bi-Weibull Logistic log-Logistic Wakeby Normal Lognormal Student’s t Pareto Rayleigh Weibull