長后坡矮后墻拱圓形日光溫室
CHANGHOUPOAIHOUQIANGGONGYUANXINGRIGUANGWENSHIZHEZHONGLEIXINGDERIGUANGWENSHIDADUOYINDIZHIYI,JIUDIQUCAI。HOUQIANGDUOSHUWEITUQIANG,YEYOUDECAIYONG24LIMIHOUDEZHUANQIANG,ZHUANQIANGWAICEDUITUQIANGBAOWEN。YOUDEDIFANGYONGSHILIAOQIQIANGDAITIZHUANQIANG,ZHEZHONGQIANGTIBAITIANKEXURE,WANSHANGXIANGSHINEIFANGRE。ZHEZHONGRIGUANGWENSHIHOUQIANGTIHOUDUBUSHAOYU1MI,QIANGTIGAODU0.5~1.2MI;WENSHIKUADUWEI6MIZUOYOU,DINGGAO2.3~2.4MI;QIANMIANYOU2PAIQIANZHU,FENBIEWEI1.9MIHE1.4MI;GONGJIAYONGZHIJING3LIMIYISHANGDEZHUGAN;HOUQIANGHOUDUWEI70~90LIMI。QIANWUMIANDEJIAODUWEI:DIJIAOYIBANWEI60°ZUOYOU,ZHONGBUWEI30°ZUOYOU,SHANGBUWEI10°ZUOYOU,HOUWUYANGJIAOWEI25°~30°。HOUWUPOYONGTUOHUAI、YUMIJIEKUN、MAICAO、CAONIDENGGOUCHENG,ZONGHOUDUWEI50~60LIMI。ZAISHIJIJIANZAOSHI,WEIDUYUEGAODEDIQU,HOUWUMIANYINGYUEHOUYUECHANG。
這種類型的日光溫室突出了冬季防寒保溫的結構特點,所以在建造上采用了長后屋面的結構,其后屋面比其他類型溫室的后屋面長,所以保溫性能好。在覆蓋同樣的大棚膜材料和同樣的外界溫度環境中,氣溫條件優于其他類型溫室,即使在最寒冷的12月份,溫室內最低氣溫也可維持在7°~18°,白天最高溫度達到30℃左右。這種日光溫室睛天升溫快,溫度分布較其他類型溫室均勻;晚上溫度下降平緩。同時建造成本低,并適于冬季不加溫進行蔬菜生產。但在3~10月間其后坡下為弱光區,可通過增加中脊高度、縮短后坡長度來提高采光效果。