摘要
为保证日光温室作物在沈阳地区寒冷季节正常生长,在日光温室中设置了太阳能地热加温系统,以期提高温室内土壤温度。采用自主研发的太阳能地热加温系统,在16:00～20:00对辽沈Ⅳ型日光温室土壤进行加温,结果表明:日光温室使用地热加温系统后,室内15cm深土温在晴天时平均比不加温的对照区提高2.94℃,阴天提高2.56℃。最低土温由11.0℃提高到13.9℃。而且发现对5cm以上的土壤温度和温室内气温的差异较小。太阳能地热系统能够对土壤温度有明显的提升作用,热能主要集中加热了15～25cm深度的土壤。
In order to guarantee crop production in greenhouse in the cold season, a set of solar energy soil heating system was established. The system ran in 16：00-20：00, so as to study heating effect and contrast with the CK. The results showed that the soil temperature increased obviously at 15cm when the system ran, 2.94℃ in sunny day and 2.56℃ in cloudy day higher than that of CK. The soil minimum temperature increased from 11.0℃ to 13.9℃. Moreover, there was no difference between soil temperature in depth of 5cm and air temperature in greenhouse. Significant heating effect on the soil temperature was obtained when the solar energy soil heating system was used, especially for soil temperature at 15cm to 25cm in depth.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2009年第2期152-155,共4页
Journal of Shenyang Agricultural University
基金
辽宁省高校重点实验室支持计划项目(20060755)
关键词
日光温室
太阳能地热加温系统
土壤增温
greenhouse
solar energy soil heating system
substrate heating
