梯田,顾名思义就是在坡地上修筑的像台阶式的农田。梯田可改变地形坡度,拦滞径流,增加土壤水分,具有保水、保土、保肥的作用。梯田同改进农业技术相结合,能大幅度提高产量,从而为山区农、林、牧、副业的全面发展创造条件。因此,梯田是改造坡地、保持水土、全面发展丘陵山区农业生产的一项重要措施。地球上除了广阔的平原外,还拥有大面积的山地和丘陵。早期人类为了农业生产的需要,居住在山区的人们就靠山吃山,在坡地上建造梯田。因此,梯田的修筑历史悠久,遍布于世界各地,特别是地少人多的地 Terraced fields, as the name implies, are built on sloping fields like step-shaped farmland. Terraces can change the terrain slope, stop runoff, increase soil moisture, with water, soil, fertilizer and the role. The combination of terraced fields with improved agricultural technologies can greatly increase the output and thus create conditions for the all-round development of agriculture, forestry, animal husbandry and sideline industries in mountainous areas. Therefore, terraced fields are an important measure to rebuild slopes, maintain soil and water sources, and fully develop agricultural production in hilly areas. In addition to the vast plains on earth, but also has a large area of ​​mountains and hills. For the sake of agricultural production, people in the early days of human life lived in the mountainous areas and went back to the mountains to build terraces on the slopes. Therefore, the construction of terraced fields has a long history, spread all over the world, especially in areas with fewer places