沈阳大学学报（自然科学版）2023，Vol.35Issue(6)：471-479,9.
草甸草原植物中微量元素吸收特点及其对硫添加的响应
Characteristics of Trace Element Absorption in Meadow Steppe Plants and Their Response to Sulfur Addition
摘要
Abstract
Based on the simulated acidification of sulfur addition in meadow steppe,the response of trace elements in plant leaves and roots to sulfur addition was studied.The results showed that compared with weeds,the leaves of grass had higher mass fraction of Fe and Mn and lower mass fraction of Ca and Mg;the responses of Ca and Mg in leaves of the four species to sulfur addition were relatively weak,and Mn increased significantly with sulfur addition(the variation range was 6％～72％),while the Fe mass fraction in weeds leaves decreased significantly(the variation range was 5％～5 2％);from the perspective of plant community level,with the increase of sulfur addition,the Ca mass fraction in roots decreased significantly,decreased by 18％at high sulfur level,and the Fe mass fraction in leaves and Mn mass fraction in leaves and roots increased significantly,increasing by 103％,93％and 106％,respectively;the variation of plant nutrients under sulfur addition was significantly affected by soil acidification indexes such as soil pH and exchangeable Al.关键词
草甸草原/硫添加/土壤酸化/植物营养/中微量元素Key words
meadow grassland/sulfur addition/soil acidification/plant nutrition/medium and trace elements分类
农业科技引用本文复制引用
张玉革,刘梦霖,高金影,冯雪,李天鹏,姜勇..草甸草原植物中微量元素吸收特点及其对硫添加的响应[J].沈阳大学学报（自然科学版）,2023,35(6):471-479,9.基金项目
国家自然科学基金资助项目(31870441). （31870441）
