室内模拟麦秆还田引水整地期间水质变化分析  

作　　者：樊冬玲 王辉 张敏 潘洪波 朱小亮 苏群 蔡芮 

机构地区：[1]江苏省宿迁环境监测中心,江苏宿迁223800

出　　处：《环境保护与循环经济》2021年第6期89-92,共4页environmental protection and circular economy

摘　　要：秸秆还田是秸秆综合利用的主要方式,源头上抑制了秸秆焚烧,有效降低了对大气的污染。还田秸秆在微生物降解下释放有机物、氮、磷等至水中,秸秆还田水对地表水环境质量构成潜在威胁。通过室内浸泡麦秆还田土,模拟麦秆还田引水整地,监测5 d内水样7项指标,分析水质各指标变化规律,综合讨论了各指标不同变化规律背后的原因,针对降低秸秆还田水对河湖水质恶化影响提出麦秆离田、综合利用等建议。Straw returning to the field is the main way of comprehensive utilization of straw,which inhibits the burning of straw at the source and effectively reduces the air pollution.However,soil microbial degradation of returned straw releases organic matter,nitrogen and phosphorus into the water,which poses a potential threat to the environmental quality of surface water.In this paper,seven indexes of water within five days were monitored by indoor simulation of straw returning to the field for land preparation,and the variation rules of each index were analyzed.The reasons behind the different variation rules of each index were discussed comprehensively.In order to reduce the effects of straw returning to the field on water quality deterioration of rivers and lakes,some suggestions were put forward,such as wheat straw leaving the field and comprehensive utilization.

关 键 词：模拟 麦秆还田 水质 

分 类 号：X824[环境科学与工程—环境工程]