黄河淤背区地表温度与滴灌灌水器内腔水垢形成相关性研究

The Study on the Relationship Between the Land Surface Temperature and the Formation of Emitter Intracavity Scale

黄河下游淤背区种植有适生林和草皮等作物,且部分采用了滴灌方式,在每年6—8月高温时期,林地滴灌工程在非滴水时间段4~8 d期间,铺设在地面的聚乙烯(PE)塑料毛管上的滴头内腔中存在未流出的剩余水,在蒸发过程中不可避免地形成水垢,经过多年积累,最终可能形成堵塞。通过开展对地面温度、水质等资料的收集及现场观测等工作,运用相关成果资料,初步揭示了淤背区滴灌地表土壤温度与滴头内腔水垢形成之间的关系,提出相应的解决措施。

In the silted area of the lower Yellow River,crops such as suitable forests and grass are planted,and some of them use drip irrigation.During the high temperature period from June to August each year,during the non drip period of 4-8 days in the forest drip irrigation project,the remaining water that does not flow out of the drip chamber laid on the ground PE plastic capillary(used for many years)inevitably forms scale during the evaporation process,and after years of accumulation,it may eventually form blockage.By collecting data on ground temperature and water quality,as well as conducting on-site observations,and utilizing relevant achievements and data,the relationship between surface soil temperature and the formation of scale in the inner cavity of drip irrigation heads in silted areas has been preliminarily revealed,and corresponding solutions have been proposed.