华北地质2023，Vol.46Issue(4)：55-60,6.DOI:10.19948/j.12-1471/P.2023.04.07
利用固废改良贫瘠黄土的地球化学工程盆栽试验
Pot experiment of geochemical engineering for improving barren loess with solid waste
摘要
Abstract
Aeolian loess on the Loess Plateau in China are dominated by the Malan formation,with single components as quartz and felddrite mainly,and lack of water storage minerals and dark minerals that release and supply nutrients,which makes the soil lose the foundation of fertility.This is the congenital defect of the geological root cause of the barren loess,and also the fundamental reason that the natural loess landform area can't support the growth of high-dense vegetation and tall trees,and make the resulting of serious soil erosion.The pot experiment based on the geochemical characteristics of Cu,Zn,Fe,Mn,Mo,B,Mg,S which are riched in construction wastes,coal gangue,aluminum slag,copper tailings and other solid wastes and the characteristics of riching in mica,amphibole,pyroxene,vermiculite and other minerals.The pot experiment made these solid wastes into powder and mixed with aeolian loess to make artificial soil,and analyzed the ability of solid wastes powder to improve the loess nutrient and water retention and drought resistance of loess.Six groups were set up in the pot experiment with the ratio of[original loess]/[solid wastes powder]=0/10,1/9,3/7,5/5,8/2,10/0.And cabbage and wheat were selected as the test subjects.It showed that the solid wastes powder added to barren loess could obviously improve the growth ability and drought resistance of plants,and the best ratio was[original loess]/[solid wastes powder]=8/2.关键词
固废/贫瘠黄土/地球化学工程/盆栽试验Key words
solid wastes/barren loess/geochemical engineering/pot experiment分类
天文与地球科学引用本文复制引用
靳职斌,闫彤彤,张双奎,康云鹏,谢国梁..利用固废改良贫瘠黄土的地球化学工程盆栽试验[J].华北地质,2023,46(4):55-60,6.基金项目
山西省地质勘查局2020科技创新项目"利用工业及生活固废开发人工土壤的地球化学工程试验"(晋地矿发[2020]25号) （晋地矿发[2020]25号）
