改畛子就是把顺水流方向耕作的顺畛子改为与水流方向垂直耕种的横畛子,也就是沿等高线耕作,以减少水土流失的意思。划田块就是把塬面上的大块过水地,按照地形、地势基本沿等高线适当划分若干台,在台与台间培上地埂,或将零散的小块地,能连条并块 Changing the shuttlecock means changing the shuttlecock tillage along the current of water into a barbarian tilled horizontally with the current, that is, cultivating along the contour to reduce soil erosion. Zoned field is the plateau on the plateau over the water, in accordance with the terrain, terrain along the contour of the basic number of appropriate division of Taiwan, Taiwan and Taiwan training ground 埂, or fragmented small, can even a And block