摘要
本文对佳木斯地区塑料大棚的内外小气候进行了分析研究,结果表明:在三种典型天气下,晴天中午大棚内外最高气温差异达20.8℃,棚内最高气温为36.5℃,超过作物生长发育的最适宜温度范围;雨夹雪天内外温差最小,最高温度差异6.4℃。夜间大棚内外最低气温差异在0.65℃～1.75℃之间,其中,晴天和多云天傍晚(18:00～20:00)棚内温度低于棚外。三种典型天气下大棚内均维持较高的湿度(80%～99%),远高于棚外的湿度(50%～80%)。大棚内的光强随着外界光强的增加而增加,雨夹雪天气的透光率最高可达74%,晴天最小为69%。
The microclimate inside and outside of the plastic greenhouse under three typical weather was analyzed in this paper. The results showed that the maximum temperature difference was 20.8℃ between outside and inside the greenhouse an noon in clear day, the maximum temperature was 36.5℃ inside the greenhouse, which exceeding the optimum temperature limits of crop growth. The temperature difference was least in sleet day, which was 6.4℃ .The minimum temperatlare difference was between 0.65 ℃～ 1.75 ℃ at night, and the temperature inside was lower than outside in the evening （18：00pm to 20：00pm） in clear day and cloudy day. In the three typical weather, the air humidity in the awning （80%-99%） was more higher than outside （50%-80%）. Meanwhile the light intensity inside was increased with outside, the maximum transmittance can attain 74% in sleet day, and minimum transmittance can attain 69% in clear day.
出处
《农业现代化研究》
CSCD
北大核心
2010年第2期254-256,共3页
Research of Agricultural Modernization
基金
黑龙江省气象局2008年科研项目<佳木斯市温室小气候特征分析>气减函〔2008〕38号
关键词
大棚
春季
小气候
晴天
多云天
雨夹雪天
plastic greenhouse
spring
microclimate
clear day
cloudy day
a sleet day
