摘要
为深入了解五家渠市及周边山药种植区耕地土壤是否安全,以五家渠市及周边山药种植区内3个乡镇(下泉子村“X”;五家渠市101团六连“L”;五家渠市共青团“G”)为研究对象,采集土壤样品测定其养分和重金属含量,评价研究区耕地土壤质量和污染情况。结果表明:(1)G区土壤pH值和有效磷含量较X和L区高2.51%、17.52%;速效钾、全钾、有机质的含量较X和L区域低,分别低25.17%、36.12%、27.35%。碱解氮、全氮、全磷在3个乡镇间无显著差异。(2)土壤锌、铜、铅、镉浓度分别为新疆土壤元素背景值的102%、7.75%、12.84%、100%。(3)土壤锌、铜、铅、镉的含量均小于对应标准下的土壤风险筛选值。单因子污染指数Pi均<1,3个区域内梅罗综合污染指数分别为0.185、0.189、0.179,污染等级为1级,未受污染。该山药种植区土壤养分较充足,且未受铅、镉、锌、铜污染。综上,该研究可为西北干旱区山药种植耕地土壤的可持续利用提供支撑。
In order to deeply understand whether the cultivated soil in Wujiaqu City and the surrounding yam planting areas is safe,in this study,three towns and villages in Wujiaqu City and its surrounding yam planting area('X'of Xiaquanzi Village;'L'of Wujiaqu City 101st Regiment 6th Company;'G'of Wujiaqu City Communist Youth League)were evaluated,samples were collected to determine the soil nutrient and heavy metal content,for soil nutrients and pollution in the research area.The results showed that:(1)soil pH and quick phosphorus in G were 2.51%and 17.52%higher than X and L;but the content of quick potassium,total potassium and organic matter were 25.17%,36.12%and 27.35%lower than X and L.There were no significant differences in alkaline hydrolysis nitrogen,whole nitrogen,and whole phosphorus among the three townships.(2)The soil concentration of zinc,copper,lead and cadmium was 102%,7.75%,12.84%and 100%of the background value of Xinjiang soil elements,respectively.(3)Soil contents of lead,cadmium,zinc and copper were smaller than the soil risk screening value under the corresponding standard.The single-factor pollution index of Pi was<1,and the Mero comprehensive pollution index in the three regions was 0.185,0.189,and 0.179,pollution grade was Grade 1,unpolluted.The soil in the yam planting area had sufficient nutrients and not contaminated by lead,cadmium,zinc and copper.In conclusion,this study can provide basic data support for the sustainable utilization of cultivated soil in arid areas of northwest China.
作者
寇天乐
陈香伊
丛孟菲
胡洋
孙霞
贾宏涛
KOU Tianle;CHEN Xiangyi;CONG Mengfei;HU Yang;SUN Xia;JIA Hongtao(School of Resources and Environment,Xinjiang Agricultural University,Urumqi,Xinjiang 830052,China;Xinjiang Key Laboratory of Soil and Plant Ecological Process,Urumqi,Xinjiang 830052,China)
出处
《天津农业科学》
CAS
2023年第1期22-26,共5页
Tianjin Agricultural Sciences
基金
大学生创新训练计划项目(dxscx2021091)。
关键词
山药
土壤环境
重金属
土壤质量评价
yam
soil environment
heavy metals
soil quality evaluation
