这里介绍两种水土保持的简易工具,一种是水平步弓,用于测等高线,另一种是坡度板,可以量坡度.两年来我们在黄山进行的水土保持工作,都用这两种工具,经过等高带状整地、水平沟、梯田等工程操作,基本上都能符合预定的质量,适合农民的要求。现将水平步弓、坡度板的规格、制法和用法简介 Here are two kinds of simple tools for soil and water conservation, one is the level of the bow for measuring the contour line, the other is the slope plate, the amount of slope can be two years we have done in Huangshan soil and water conservation work, both with these two Kind of tools, after contour strip preparation, horizontal ditch, terrace and other engineering operations, basically can meet the predetermined quality, suitable for the requirements of farmers. Now the level of walking bow, gradient board specifications, methods and usage profile