摘要
本文探讨了提高型塑料连栋大棚（ＨＭＧ－１型）和单栋棚（南方标准大棚）冬季温、湿度的差异。连栋棚保温比高，保温效果好，冬季上午７∶００的温度比单栋棚平均高１℃，比露地高３℃。一天中连栋棚升温快，幅度大，降温慢，棚内各位点温度差异小。晴天连栋棚内相对湿度明显低于单栋棚，但高于露地；阴天（３月１２日）８∶００～１７∶００三者平均相对温度分别为７６％、８６％、８１％。
The variation of temperature and humidity in tunne1 and multispan greenhouse (MG) during winter season was carried out in this paper.The dimension of the tunne1 (Southern standard tunne1) is 6m in width,2.5m in height and 30m in length,while the MG(HMG 1 Type) has 8 spans of 6m in width,4.2m in height and 42m in length.The occupied area was 180m 2 and 2016m 2,respectively.Results showed that MG had higher ratio of culture area to cover area and better heat preservation than the tunnel had.The air temperature measured at 7∶00 in MG was higher than that in tunnel by 1℃ and in open field by 3℃.In daytime,the temperature in MG was raised rapidly by a big margin and then was dropped slowly.The differences of temperature among the sides and center of multispan greenhouse were limited within 1～2℃,The relative humidity (RH) in MG was noticeably lower than that of tunnel,but higher than that of open field in a fine daytime.Their average RH during 8∶00 to 17∶00 was 76%,86%and 81% respectively in a cloudy day (12 March).
出处
《浙江农业学报》
CSCD
1998年第1期36-39,共4页
Acta Agriculturae Zhejiangensis
