论文部分内容阅读
节能型日光温室,是各地在传统温室技术的基础上,采用现代化设施,充分利用太阳能,在寒冷季节不采用任何加温形式进行喜温瓜果类蔬菜生产的园艺设施。目前全国已发展到30多万亩,对解决城市淡季蔬菜供应、调节市场等都取得了巨大的社会效益和经济效益。节能型日光温室的建造技术性强,根据各地建造中出现的问题,提请注意以下要点: 1.温室的跨度:节能型日光温室主要用于北纬33°~43°地区,根据近年各地的实践经验,跨度不能太大。采光面跨度一般为4.2~5米,后坡跨度0.8~1.8米,总跨度为5~7米。 2.温室的高度:为使更多的直射光进入温室,采光面平均角度30°为好,因此,温室高度应在2.2~3米
Energy-saving solar greenhouse, is based around the traditional greenhouse technology, the use of modern facilities, make full use of solar energy, in the cold season do not use any warming form of winter melon fruits and vegetables production horticultural facilities. At present, the country has developed over 300,000 mu and has made great social and economic benefits in solving the problem of urban vegetable supply in the off-season and market regulation. Energy-saving solar greenhouse construction technology, according to the problems in the construction around, draw attention to the following points: 1. Greenhouse span: energy-saving solar greenhouse is mainly used for latitude 33 ° ~ 43 ° area, according to recent years of practical experience in various places, Span can not be too big. Light surface span is generally 4.2 to 5 meters, after the slope of 0.8 to 1.8 meters, the total span of 5 to 7 meters. 2. The height of the greenhouse: In order to make more direct light into the greenhouse, the average angle of 30 ° as the lighting surface is good, therefore, the greenhouse height should be 2.2 to 3 meters