Rainfall is one of the most important ecological and environmental factors which influences the germination, growth and subsequent establishment of plants and species composition in many areas of the world, especially in arid and semi-arid areas. A large number of scientists and scholars have been doing research on it and produced a great many useful results. This paper is a comprehensive analysis on the study of rainfall in the last decades, including various methods such as modeling, simulation, statistics, time-series, predicting and so on dealing with rainfall distribution, intensity, long...
