本方法根据较高纬度地区太阳光对地面的照射在大部分时间里是斜射的现象 ,在屋顶下设置一层或多层副屋顶 ,利用斜射阳光与散射阳光用于种植植物。副屋顶的设置扩大了屋顶种植面积 ,使建房所占的耕地面积在房屋上得到复垦。本方法利用原地复垦耕地的办法保护了耕地。扩大屋顶种 According to the method, the sunlight is inclined to the ground for most of the time according to the sunlight in the higher latitudes, one or more auxiliary roofs are arranged under the roof, and the plants are inclined by the sunlight and the scattered sunlight. The setting of the sub-roof enlarges the planting area of ​​the roof so that the cultivated land occupied by the building will be reclaimed on the house. The method uses cultivated land reclamation in situ to protect cultivated land. Expand the roof species