山地等高线保持水土法在辽西说还是一件比较新鲜的工作,当然用水平仪或其他科学方法能测量出来等高线,但在目前说来仍然是比较困难的。一来老乡们没有科学仪器,;二来在已栽植成大树行里测量也是有些困难。辽西第一果园简易等高线的测作方法是经工作人员摸索出来的。今特将这个经验介绍一下作 It is still a relatively fresh work to maintain the water and soil law in the western Liaoning Province. Of course, it is still difficult to measure the contour line with the spirit level or other scientific methods. One fellow did not have scientific instruments, and secondly, it was also somewhat difficult to measure in trees that had been planted in large trees. The method of measuring the simple contour of the first orchard in western Liaoning province was explored by the staff. Now this special presentation about this experience