abundant precipitation
1.By surveying the sample plot ,the relations between the stabil ity of the mountai n slope of soil preparation for planting by using explosion and other factors s uch as precipitation,terrain，were studied.By using the method of Quantitative T heory I,the interrelation between the damaged degrees of soil preparation progra ms by using explosion in low mountain area with abundant precipitation and terrain factors was systematically analysed,and the mathematical models relate d were developed.The results show that the precipitation in early days and the m aximum precipitation per day are the primary factors causing the soil prepara tion program damaged.The main terrain factors of the mountain slope that affect the program stability are according to their importance ,slope ,position and dir ection.The suitable mountain slope for soil preparation by using explosion is th e slope of less than 25°.
2.Suqian has the monsoon climate of warm temperate zone, with abundant sunshine and rainfall. Its annual temperate averages 14℃ and the annual average precipitation is 913 mm.
