摘要
对辽河平原水稻农作物整个生育期的潜水蒸发进行试验分析。试验结果表明:水稻作物潜水蒸发量随地下水埋深增大而减小。孕穗和抽穗开花期的潜水蒸发量占总蒸发量的比重达到40.4%,属于耗水最高时期,黄熟期占比最低,为15.5%。粘土土质下水稻潜水蒸发最大,其次是亚粘和亚沙,沙土土质下水稻潜水蒸发最小。研究成果对于水稻节水措施具有参考价值。
This paper conducts an experimental analysis on the phreatic evaporation during the entire growth period of rice crops in the Liaohe Plain.The test results show that the evaporation of rice crops from groundwater decreases with the increase of groundwater depth.The water evaporation in the late tillering stage of rice is the largest,the daily water evaporation accounts for 17.8%of the total growth period evaporation,and the yellow maturity stage accounts for the lowest percentage,which is 15.5%.Rice phreatic evaporation is the largest under clay soil,followed by sub-clay and sub-sandy soil.Rice phreatic evaporation is the smallest under sandy soil.The research results have reference value for rice water saving measures.
作者
辛宏章
Xin Hongzhang(Liaoning julongda Construction Engineering Management Consulting Co.,Ltd.,Shenyang 110003,Liaoning)
出处
《陕西水利》
2021年第3期63-65,68,共4页
Shaanxi Water Resources
关键词
水稻农作物
潜水蒸发
地下水埋深
土质
辽河平原
Rice crops
water evaporation
groundwater depth
soil quality
Liaohe Plain
