再生水灌溉对棕壤水稻土土壤影响分析  

Influence of Reclaimed Water Irrigation on the Brown Paddy Soil

作　　者：谢芳[1] XIE Fang(Ningxia Institute of Science and Technology,Shizuishan 753000,China)

机构地区：[1]宁夏理工学院,宁夏石嘴山市753000

出　　处：《山东农业大学学报（自然科学版）》2023年第1期119-123,共5页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：宁夏回族自治区“十三五”重点建设项目:给排水科学与工程重点建设专业(宁教高办[2015]82号)。

摘　　要：为分析再生水灌溉对棕壤水稻土土壤影响,本文选择辽宁省海城市西四镇后青台子村作为研究区域,研究再生水灌溉后土壤中铵态氮(NH_(4)^(+)-N)、硝态氮(NO_(3)^(-)-N)、土壤有机质和营养元素变化,以及土壤肥力情况。结果表明,再生水灌溉对于土壤中铵态氮、硝态氮、土壤有机质影响并不显著。同一灌溉模式下,土壤样本中全氮、全磷和铵态氮含量略有增长,硝态氮略有减少。不同灌溉模式对土壤全氮、全磷和铵态氮的影响并不显著,对于硝态氮的影响较为明显。再生水灌溉能够提升土壤肥力。高水位灌溉下土壤中全氮、全磷和有机质含量最高。本文结果能够为合理利用再生水资源,减轻国家农业用水压力,实现区域生态环境可持续发展做出贡献。The purpose of research is to analyze the effects of reclaimed water irrigation on brown paddy soil.It selected Houqingtaizi Village,Xisi Town,Haicheng City,Liaoning Province as the research area to discover the change of NH₄⁺-N,NO₃⁻-N,organic matter and nutrients,as well as soil fertility after reclaimed water irrigation.The results showed that the effects of reclaimed water irrigation on NH_(4)^(+)-N,NO_(3)^(-)-N and organic matter were not significant.Under the same irrigation mode,the content of total nitrogen,total phosphorus and NH₄⁺-N in soil samples increased slightly,and that of NO_(3)^(-)-N decreased slightly.Under the effects of different irrigation modes,it discovers that the change on total nitrogen,total phosphorus and NH₄⁺-N were not significant,and the effects on NO_(3)^(-)-N were significant.Reclaimed water irrigation is able to improve soil fertility.Under the high-water irrigation mode,content of total nitrogen,total phosphorus and organic matter reached highest level.This research is able to make important contributions to the rational use of renewable water resources,reduce the pressure of national agricultural water use,and realize the sustainable development of regional ecological environment.

关 键 词：土壤灌溉 稻田 土壤成分 

分 类 号：S155.44[农业科学—土壤学]