Building a shed due to local conditions

作者： 泽惠农业 时间：2023-04-05 10:18:28 阅读：70

On August 17, the reporter found in an interview with Jujiazhuang, Lintong Town, Anqiu City that the structure of the sheds here is the same as that of most places such as Shouguang. Essence Therefore, when we are building a warm greenhouse in winter--
       Building a shed due to local conditions
     Winter warm greenhouses can be divided into two types of underground and peaceful ground according to whether the planting area is dug. These two shed methods have their own advantages and are suitable for different situations.
     The semi -ground formation refers to a way to build a wall from the floor of the shed when the shed is planted. After the interior of the shed is built, the ground floor is below the ground surface. This method is currently used in many ways. Taking the new greenhouses in the Shouguang area as an example, the excavator or bulldozer is generally used for mechanical operations when building a shed. 3-4 meters (compared with the ground, the same below), is a trapezoidal, and 0.5-1 meters under the ground floor. This semi -underground greenhouse has good thermal insulation, especially the ground temperature is not affected by the outdoor frozen soil layer. There are also disadvantages of semi -ground type: the farming layer of the original soil, that is, the ripe layer of the mature soil, becomes a wall, and the soil is required to improve the soil when planting soil.
     Flat ground type means that when the shed is built, the wall is taken from the outdoor field of the shed, and the ground in the shed is not digged. This method has more applications in Qingdao Pingdu and other places. In this way, it is mostly to use the land to build the wall from the back of the shed when the shed is built. The advantage of this method is that the original farming layer is retained, and the soil conditions are better; the underground geological conditions are less affected and the adaptability is wide. The disadvantage is that the insulation is poor. It is necessary to excavate the cold and cold groove in front of the shed to reduce the impact on the low temperature conduction of the frozen soil layer outside the shed. The groundwater level is particularly shallow, thin soil layer, saline -alkali soil and other areas, it is best to use this method.
     The geological conditions in Jujiazhuang, Linzheng Town are special, and are more suitable for establishing a flat greenhouse. The soil layer of the area (including farming layers, soil layers, water storage layers, etc.) is thin, the total thickness is within 10 meters, and red sedimentary rocks are not available. There is no water storage capacity; the groundwater level is light and the changes are fierce. In the rain, the groundwater level rises, and water accumulation is prone to occur. This year, there are many rainwater. When we go, we are still raining. After the rain, the river is full, and the groundwater level rises rapidly. , Due to the roots of stagnant water, it is basically hopeless. When there is a lot of rain, the use of ridge can also reduce the harm of water accumulation. In the drought year, the groundwater level decreased or even disappeared, and it was difficult to water. In the past few years, Shandong was severely drought. The river was dried up, and the groundwater level dropped to a certain extent. The water storage layer was limited. It was difficult to seep water under the well. It was difficult to draw a few cubic meters of water in a day. Drought is affected by large climate conditions and is difficult to change; but when rainwater is more, it can be achieved by reducing water accumulation. In order to protect the soil layer and reduce the harm of water accumulation when the rain is too much, it is best not to build a semi -underground type and use a flat -ground shed method. There are differences in the actual situation of different regions. This requires us to try to profit and avoid harm, make full use of the advantages of the natural environment, and try to avoid environmental harm.