在国家风沙源治理项目中,有关部门推行一种标准化羊舍,其特点是单坡式,前拱敞开,舍内饲喂,冬季可搭上棚架,扣上塑料薄膜成暖棚。但在推广实践中也存在明显的缺点:一是结构极不稳定,坡顶容易滑坡而坍塌;二是舍内设有一条人行通道和饲槽,占去了室内一半的面积,单位饲养只数减 In the national project of sandstorm source control, relevant departments implement a standardized sheep’s house, which is characterized by a single slope, with open front arch and feeding inside. In winter, it can be put on a scaffolding and the plastic film can be fastened to the greenhouse. However, there are also obvious shortcomings in the practice of popularization: firstly, the structure is extremely unstable; the top of the slope is prone to landslide and collapses; secondly, there is a pedestrian passage and a manger in the house, accounting for half of the indoor area, Less