越冬期浅层潜水井水温问题研究  

Study on Water Temperature Issues of Shallow-layer Phreatic Well in Wintering Period

作　　者：高艳娟[1] 樊贵盛[1] 胡婧娟 

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《节水灌溉》2014年第8期22-24,28,共4页Water Saving Irrigation

基　　金：山西省科技攻关项目"低温区日光温室大棚冬季灌溉水升温设施与技术研究"(20130311010-3)

摘　　要：针对中国北方地区越冬期高海拔低温区温室大棚设施种植利用河流地表水进行灌溉这一客观现实,实施了越冬期实地河流地表水、潜水井水温跟踪监测,分析了越冬期气温﹑河流地表水温﹑集水井水温间的数量关系。结果表明:气温与河流地表水温具有同步性,河流地表水表层冰盖形成后,地表水温在冰盖的保护下趋于相对稳定;地表河水在通过河槽沙砾石层渗流进入潜水井的过程中,由于地热的热传导,潜水井水温在越冬期间可保持相对稳定;渗流场地温是影响潜水井水温的主要因素,气温对潜水井井水温的影响很微弱;潜水井井口加盖和加深井深可以有效地增加热量的补给和减少热量的散失,提高潜水井水温。研究成果可为低温区蔬菜大棚的越冬期灌溉提供一定的技术支撑。According to the objective reality of utilizing river surface water for the plantation of greenhouse facilities in high altitude and low temperature area during wintering period in northern areas of China, this research implements the field tracking and moni tored the water temperature of the surface water of the river and the phreatic well during wintering period, and analyzes the quantita- tive relations among temperature, river surface water temperature, and water temperature of phreatic well during wintering period. The results show that the atmospheric temperature has synchronism with the river surface water temperature; when the surface layer ice sheet of river surface water is formed, the surface water temperature tends to be relatively stable under the protection of ice sheet; in the process of river surface water entering into the phreatic well via river channel sand gravel layer, due to geothermal heat conduction, water temperature o[ the phreatic well can keep relatively steady during winter period; the ground temperature of seep age flow field is the main factor influencing water temperature of the phreatic well, and the influence of atmospheric temperature on the water temperature of the phreatic well is very weak; capping at the mouth of the phreatic well and deepening well depth can effec tively increase heat replenishment and reduce heat loss, thereby improve water temperature of the phreatic well. The research results will provide certain technical support to irrigation of vegetable greenhouses in low temperature zone during winter period.

关 键 词：越冬期 潜水井 水温 灌溉水温 热传导 

分 类 号：S279[农业科学—农业水土工程]