文献类型：期刊文献

中文题名：铝土矿采面土壤化学性质及垂直变化研究

英文题名：Study on the Chemical Properties and Vertical Variation of Soil in Bauxite Mining Faces

作者：韦绍智[1] 农瑞红[1,2] 韦茂密[1] 田祖为[2,3] 卢立华[2,3] 陈琳[2,3] 李忠国[2,3] 明安刚[2,3]

第一作者：韦绍智

机构：[1]广西盘古生态环境工程有限责任公司,广西南宁530000;[2]中国林业科学研究院热带林业实验中心,广西凭祥532600;[3]广西友谊关森林生态系统国家定位观测研究站,广西凭祥532600

年份：2025

卷号：53

期号：23

起止页码：55-60

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

基金：广西崇左市科技计划项目(崇科2022QN1219);中国铝业股份有限公司广西分公司技术开发研究项目(gx-sc2022-yf0140)。

语种：中文

中文关键词：铝土矿;采面;土壤化学性质;垂直变化

外文关键词：Bauxite;Mining face;Soil chemical properties;Vertical variation

分类号：S153

摘要：[目的]了解和掌握铝土矿采面土壤化学性质及其垂直变化规律。[方法]在平果铝土矿采空区的采面中取土测定土壤化学性质;利用相关分析方法,探究土层深度与土壤化学性质相关性;对比法确定土壤养分含量等级。[结果]土壤pH随土层深度增加而升高,与土层深度呈极显著正相关;土壤有机质、全氮、碱解氮含量随土层深度增加而降低,与土层深度呈极显著负相关,且以0~100 cm土层含量高、变化大,>100 cm土层含量低、变化小,它们在土层中的养分含量等级为中下至极贫瘠;全磷、速效磷、全钾、速效钾含量随土层深度增加整体趋波浪式起伏,它们与土层深度的相关性均不显著,且养分含量等级均为贫瘠至极贫瘠。[结论]研究结果可为铝土矿采空区采面的生态恢复和土壤改良及物种选择与布局提供依据。
[Objective]In order to understand and determine the chemical properties of soil in bauxite mining faces and their vertical variation patterns.[Method]Soil samples were collected from various depths and their chemical properties were determined.The correlation analysis method was used to explore the relationship between soil layers and chemical properties.The grade of soil nutrient content was determined by the comparative method.[Result]The results showed that the pH increased with the soil depth,positively correlating with it.In contrast,soil organic matter,total nitrogen and available nitrogen decreased with depth,showing a significant negative correlation.Soil nutrient content was high and variable within 0-100 cm depth,while nutrient content in the soil layer>100 cm was low and with little change,indicating levels of below medium and extremely infertile.Total phosphorus,available phosphorus,total potassium and available potassium fluctuated with depth without significant correlation to soil layer,indicating levels of infertile and extremely infertile.[Conclusion]The research results can provide a basis for ecological restoration,soil improvement and species selection and arrangement in bauxite mining faces.