人民黄河2025，Vol.47Issue(1)：123-127,5.DOI:10.3969/j.issn.1000-1379.2025.01.020
农田排水沟沟水灌溉对土壤盐碱及稻谷重金属的影响
Effects of Farmland Drainage Ditch Water Irrigation on Saline-Alkali Properties of Soil and Heavy Metals of Paddy
摘要
Abstract
In view of the shortage of agricultural water resources and the abundant water resources of farmland drainage ditch in Yinbei region of Ningxia,the test was conducted at the Station of Saline-Alkali Soils Improvement Experiment in Pingluo County,Ningxia(106°31′E,38° 51′N)to research on the effects of farmland drainage ditch water irrigation on saline-alkali properties of soil and heavy metals of paddy through using field monitoring and indoor detection.The results show that the salinity of farmland drainage ditch water from experimental field during the rice growth period is less than 1.2 g/L and pH is less than 8.54,it belongs to the range of mildly brackish water and fresh water.The use of farmland drainage ditch water irrigation will not lead to soil saline-alkali aggravation and excessive heavy metal content of soil and paddy.Compared with the Yellow River irrigation,direct farmland drainage ditch water irrigation will reduce the rice yield by 19.7%.There is little difference between mixed irrigation and alternate irrigation on rice yield.Therefore,under the shortage of water resources in the Yellow River can be appropriate use of farmland drainage ditch water for mixed irrigation or alternated irrigation with the Yellow River water to ensuring food security.关键词
灌溉/农田排水沟/土壤盐碱性质/稻谷重金属/宁夏银北地区Key words
irrigation/agricultural drain ditches/soil salinity and alkalinity properties/heavy metals in rice/Ningxia Yinbei region分类
农业科技引用本文复制引用
王旭,张益民,张永宏,樊丽琴,吴兰,李沛峰..农田排水沟沟水灌溉对土壤盐碱及稻谷重金属的影响[J].人民黄河,2025,47(1):123-127,5.基金项目
宁夏回族自治区重点研发计划项目(2022BBF03032-03) （2022BBF03032-03）
国家重点研发计划项目(2021YFD1900605-05) （2021YFD1900605-05）
宁夏回族自治区农业科技自主创新项目(NGSB-2021-11-03) （NGSB-2021-11-03）
国家农业基础性长期性科技工作观测监测项目(NAES091AE18) （NAES091AE18）
