黄土丘陵地区,各式梯田田埂地堰都是黄土拍成,每遇暴雨,有不少被冲毁,造成水土流失。如今,山西吕梁地区农民创造了一种叫“生物埂”的办法,使这一问题得以解决。所谓“生物埂”,就是 Loess and hilly areas, all kinds of terraced fields weir weir are made of loess, each case of heavy rains, many have been washed away, resulting in soil erosion. Nowadays, farmers in Luliang, Shanxi Province, have created a solution called “biological disease,” so that this problem can be solved. The so-called “biological 埂”, that is