不同灌溉方式对巨型塑料大棚环境因子的影响

中国农业气象

不同灌溉方式对巨型塑料大棚环境因子的影响

李胜利;孙治强;

河南农业大学园艺学院;

出版日期:2009-06-10 发布日期:2009-06-10
基金资助:
国家“十一五”科技支撑计划(2006BAD07B04);; 河南省重点科技攻关项目(0802102150002);; 河南省基础与前沿技术研究项目(082300430060)

Effects of Different Irrigation Patterns on Environmental Factors inside Wide-span Plastic Film Covered Tunnel Greenhouse

LI Sheng-li,SUN Zhi-qiang(College of Horticulture,Henan Agricultural University,Zhengzhou 450002,China)

Online:2009-06-10 Published:2009-06-10

摘要/Abstract

摘要： 为探讨灌溉方式对巨型塑料大棚环境因子的影响,采用膜下滴灌、膜下沟灌、裸露沟灌3种处理,研究了不同灌溉方式对棚内空气相对湿度、结露时间、土壤水分、棚内气温以及地温的综合效应。测试结果表明:与裸露沟灌相比,膜下沟灌、膜下滴灌均可降低棚内的相对湿度,其中膜下滴灌的降湿效果优于膜下沟灌;不同时刻、不同天气下的降湿效果不同,表现为白天的降湿效果优于夜晚,晴天的降湿效果好于阴天;膜下滴灌与膜下沟灌可以降低棚内的结露时间,提升棚内的气温与10cm地温,增加土壤含水量。

关键词: 灌溉方式, 巨型塑料大棚, 空气相对湿度, 地温, 最低气温

Abstract: Three treatments including dripping irrigation under plastic film mulching (DIUPM),furrow irrigation under plastic film mulching (FIUPM) and furrow irrigation without plastic film mulching (FIWPM) were designed in order to study the influence of irrigation patterns on environmental factors inside wide-span plastic film covered tunnel greenhouse. The relative humidity (RH),dew duration,soil water content,air and soil temperature were observed. The results indicated that the RH in the treatments of DIUPM and FIUPM were decreased compared to the FIWPM treatment. The dehumidified effectiveness in the DIUPM treatment was better than that in the FIUPM treatment. The dehumidified effectiveness varied at different times and different weather conditions. It was better during day times than at nights and btter in the sunny days than in the cloudy days. The dew duration decreased,the soil temperature in air and in 10cm soil depth enhanced,and the soil water content increased by the treatments of DIUPM and FIUPM.

Key words: Irrigation pattern, Irrigation pattern, Wide-span plastic film covered tunnel greenhouse, Air relative humidity, Soil temperature, Minimum air temperature

李胜利;孙治强;. 不同灌溉方式对巨型塑料大棚环境因子的影响[J]. 中国农业气象.

LI Sheng-li,SUN Zhi-qiang(College of Horticulture,Henan Agricultural University,Zhengzhou 450002,China). Effects of Different Irrigation Patterns on Environmental Factors inside Wide-span Plastic Film Covered Tunnel Greenhouse[J]. Chinese Journal of Agrometeorology.

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