承德地区位于燕山东段,素有“七山二水一分田”之称。总耕地468.97万亩,占土地总面积的10%左右;其中,坡耕地近300万亩,约占耕地的64%,坡耕地生产历史上就存在着水土流失(蚀)经营粗放、低温冷害、风害、冰雹等许多限制因素即所谓的“拉腿田”。如何开发坡耕地资源,增强农业发展后劲;将会对山区粮食生产及生态环境的改善产生重要影响。一、坡耕地现况承德山区坡耕地的坡度多在25度以下,成土母质主要是沉积在石质山山麓的原生黄土和次生黄土,土层深厚,潜在着产生水土流失的物质基础和地形条件;加之人为耕作方式、降雨特征和土壤抗蚀性 Chengde area is located in the eastern section of Yanshan, known as “seven mountains and two waters of a field,” said. The total cultivated land is 4.6897 million mu, accounting for about 10% of the total land area. Among them, nearly 300 million mu of cultivated land is sloppy, accounting for about 64% of the cultivated land. There is extensive soil and water erosion (erosion) Wind damage, hail and many other constraints that the so-called “leg.” How to develop sloping arable land resources and enhance the stamina of agricultural development will have a significant impact on the improvement of grain production and ecological environment in mountainous areas. I. Status of sloping land The slope of sloping land in Chengde Mountain is mostly below 25 degrees. The parent material is mainly composed of primary loess and secondary loess deposited at the foothills of the Stony Hill, with deep soil layers and potential material causes of soil erosion Topographical conditions; coupled with man-made farming practices, rainfall characteristics and soil erosion resistance