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为探索适宜宁夏沙漠非耕地建造的日光温室结构,对现有日光温室进行结构创新,构建了双拱架内置保温被结构,对优化及对照温室内空气温度、空气湿度、露点温度、土壤10cm处温度及光照强度等指标进行测试分析,得出了优化温室结构优势性。结果表明:优化温室较普通结构温室可有效提高空气温度2.48℃,降低相对湿度7.52%,提高露点温度1.96℃,提高土壤温度2.03℃。优化温室月均透光率为56.70%,较对照温室低13.55%。优化温室可有效提高室内空气温度和土壤温度,有效保障0℃以上的露点温度,避免作物发生冻害,实现作物在沙漠非耕地安全越冬生产。
In order to explore the sunlight greenhouse structure suitable for non-cultivated land in Ningxia desert, the existing solar greenhouse was innovated. The structure of the double-arch was built and the structure of heat insulation was built. The air temperature, air humidity, dew point temperature, Temperature and light intensity and other indicators for testing and analysis, obtained the advantages of optimizing greenhouse structure. The results showed that the optimized greenhouse was able to effectively increase the air temperature by 2.48 ℃ and the relative humidity by 7.52%, increase the dew point temperature by 1.96 ℃ and increase the soil temperature by 2.03 ℃. The average monthly light transmittance of greenhouse was 56.70%, 13.55% lower than the control greenhouse. Optimizing the greenhouse can effectively increase the indoor air temperature and the soil temperature, effectively protect the dew point temperature above 0 ℃, to avoid the occurrence of frost damage crops, and achieve the winter crop non-crop safety in winter.