期刊论文

Distribution and availability of soil trace elements and their relationship with bulk density in paddy-tobacco growing area of Hunan province

Li, J.

中文

中国烟草学报

1004-5708

2021

27

2

27-34

10.16472/j.chinatobacco.2020.225

湖南省烟草公司长沙市公司项目“长沙市烤烟个体发育与群体调控关键技术研究”（2018430100240138）； 湖南省烟草公司科技项目“湖南稻作烟区合理耕层构建与土壤培肥关键技术研究与应用”（湘烟科[2017]170）；

本校为第一机构

[目的]探明湖南烟稻轮作区0～50 cm 土层有效态微量元素Cu、Zn、Fe和Mn含量特征,并了解其与容重的关系.[方法]采集了郴州、衡阳和长沙3个烟稻轮作区150个土壤剖面样品,分析了不同土层微量元素分布特征、丰缺状况和有效性指数,明确了微量元素与容重的关系.[结果](1)0～10cm 土层有效态Cu、Zn、Fe和Mn含量最高,随土层加深而递减;Cu、Zn、Fe和Mn含量达中等及以上水平的土壤样品分别占98.67％、56.67％、69.33％和56.67％.(2)0～50 cm 土层微量元素综合有效性指数自上而下存在逐层递减的规律,20～30cm 土层下降幅度最大.(3)20～50 cm 土层Cu、Zn和Mn含量与容重呈显著负相关,相关性随土层加深表现出增...

Objective: This work aims to find out the contents of available Cu, Zn, Fe and Mn in 0 ~ 50 cm soil layer of paddy-tobacco growing area in Hunan Province, and to understand their relationship with bulk density.Methods: 150 soil profile samples were collected from three paddy-tobacco growing areas in Chenzhou, Hengyang and Changsha. The distribution characteristics, abundance and deficiency status and availability indexes of trace elements in different soil layers were analyzed, and the relationship between soil trace elements and bulk density w...