碳晶电热膜根区加温对日光温室育苗环境温度的影响  

Influence of Root Zone Heating on Seedling Environment in Solar Greenhouse By Carbon Crystal Electrothermal Film

作　　者：何芬 侯永 李恺 张跃峰 李振兴 HE Fen;HOU Yong;LI Kai;ZHANG Yuefeng;LI Zhenxing(Chinese Academy of Agricultural Engineering Planning and Design , Beijing 100125;Key Laboratory of FarmBuilding in Structure and Construction, Ministry of Agriculture and Rural Affairs , Beijing 100125;Hebei Yongqing XingSheng Agricultural Services Limited Company, Langfang , Hebei 065600)

机构地区：[1]农业农村部规划设计研究院,北京100125 [2]农业农村部农业设施结构工程重点实验室,北京100125 [3]河北永清兴晟农业服务有限公司,河北廊坊065600

出　　处：《北方园艺》2018年第23期60-64,共5页Northern Horticulture

基　　金：国家重点研发计划资助项目(2017YFD0701500);国家自然科学基金资助项目(31501805)

摘　　要：以发热电缆、自限温发热带、碳晶电热膜作为育苗根区加温材料,采用在河北永清县对育苗加温效果实际测试的方法,研究分析了不同加温方式对育苗区的空气温度、基质温度的影响。结果表明:加温区与不加温区的空气温度差异不大,根区加温对作物上部空气温度影响较小;加温区较不加温区夜间基质温度平均值及最低值高2.5℃和3.1℃;碳晶电热膜加温区的夜间基质温度能达到并保持目标设定温度,比不加温对照区夜间基质温度平均值及最低值高3.4℃和3.9℃,比发热电缆和自限温发热带加温区分别高1.6℃和1.2℃,2.1℃和0.2℃;碳晶电热膜加温区加温均匀性较发热电缆和自限温发热带好,基质温度最低值偏离度0%～14.3%,平均值7.1%;发热电缆和自限温发热带加温区基质温度的最低值偏离度0%～17.4%、0%～16.8%,平均值8.2%、7.9%。Taking heating cable,self temperature limiting heating strip and carbon crystal electrothermal film as the seedling root zone heating material,the effect of raising temperature was tested in Hebei Yongqing county and the variation and difference of air temperature and substrate temperature under different heating modes were studied.The results showed that there was little difference between the air temperature in the heating zone and non heating zone,and the temperature in the root zone has little effect on the upper air temperature of the crop;the average and minimum value of the night temperature in the heating zone was 2.5℃and 3.1℃ higher than the zone without heating;the night substrate temperature could reach set value with carbon crystal electrothermal film,which were 3.4℃and 3.9℃ higher than that of the non heating control area,and which was 1.6℃,1.2℃and 2.1 ℃,0.2 ℃ higher than that of the heating cable and the self limiting thermo electric heating zone respectively.The heating homogeneity with crystal electrothermal film were better than the heating cable and self temperature limiting heating strip,and the minimum deviation of the substrate temperature was 0%-14.3%,the average value was 7.1%;the minimum deviation of the substrate temperature of the heating cable and the temperature zone of the self limiting temperature electric heating zone were 0%-17.4%and 0%-16.8%,and the average value were 8.2%and 7.9%.

关 键 词：日光温室 碳晶电热膜 根区加温 基质温度 空气温度 

分 类 号：S625.5[农业科学—园艺学]