春季阴天塑料大棚内不同位置环境变化规律  

Variation of Environment in Different Positions of Plastic Shed in Overcast Days in Spring

作　　者：范方华 王璐 朱进[1] 彭玉全[1] 孙思宇 李文静 韦雪纯 

机构地区：[1]长江大学园艺园林学院,湖北荆州434025

出　　处：《长江大学学报（自然科学版）》2018年第6期7-9,85,共4页Journal of Yangtze University(Natural Science Edition)

基　　金：国家科技支撑计划子项目(2012BAD27B02-6)

摘　　要：研究了湖北省荆州市春季阴天塑料大棚内不同位置光照强度、温度和空气相对湿度的变化。结果表明:棚内南北中3个观测点的光照强度从8:00到14:00显著低于棚外对照,16:00、18:00与对照无显著差异,且从早到晚棚内3个观测点的光照强度差异不显著;从早到晚,棚内3个观测点的温度均高于对照,除16:00和18:00时北点的温度显著低于南点外,其他时间点棚内3点的温度差异不显著;从早到晚,塑料大棚内北、中、南3个观测点的相对湿度均显著高于棚外对照,从10:00到14:00,大棚内南点的湿度显著低于北点和中点,而其他时间点北点的湿度显著低于中点和南点。从早到晚,塑料大棚内光照强度和温度的变化趋势均为先升高再降低,而湿度的变化趋势正好相反。The change of light intensity,temperature and humidity of the air in different positions of plastic shed of overcast in spring in Jingzhou City,Hubei Province were studied.The results showed that the light intensity at three points in the shed was significantly lower than that of the comparison from 8:00 to 14:00,and had no significant difference between the three points and the comparison from 16:00 to 18:00.And the light intensity on three points had no significant difference from morning till night.From morning till night,the temperature on three points was always above the comparison.In addition,the temperature on the north point was significantly lower than that on the south point at 16:00 and 18:00,and the temperature between the three points was no significant difference at other time.From morning till night,the relative humidity of the three observation points in the north,middle and south of the plastic shed was significantly higher than that of the outside control.From 10:00 to 14:00,the humidity on the south point of the shed was significantly lower than that on the north point and midpoint,while the humidity on north point was significantly lower than that on the middle and south points at other time.From dawn to dusk,in the plastic shed,light intensity and temperature change trend increased first and then decreased,and the change trend of humidity in shed was on the opposite.

关 键 词：阴天 塑料大棚 光照强度 温度 空气湿度 

分 类 号：S626.4[农业科学—园艺学]