根据对长沙黄雨的多年观测，确定黄雨是松树花粉所致。
Yellow rain is caused by pine tree pollen according to investigation of many years in Changsha.
黄绵土入渗补给系数可描述为草地盖度和雨强的两因素函数关系。
The infiltration supplement coefficient is both two-factor function of grassland coverage and rainfall intensities for Huangmian soil.
日落时天空变黄，明天起风。（日晕而风，月晕而雨。）
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