title: [Study on the response of middle and trace elements in Humulus scandens leaves to atmospheric reactive nitrogen with ICP-AES].
abstract: Based on field measurements, the effects of atmospheric reactive nitrogen (ARN) on the middle/trace element concentrations in the leaves of wild plant humulus scandens were analyzed. Leaves of H. scandens were collected from six sites around Beijing in the North China Plain, and the concentrations of Ca, Mg, S, Fe, Mn, Cu, Zn, B, and Na in the leaves were determined with inductively coupled plasma atomic emission spectrometry (ICP-AES). The results showed that element concentrations in leaves ranked as Ca (41 106) > S (8 370) > Mg (6 628) > Fe(476) > Na (92) > B (78) > Mn (49) > Zn (38) > Cu (15) mg x kg(-1) dry matter; There were no significant difference in any of the individual element in the H. scandens leaves along the gradient of ARN, suggesting that the increasing demand of H. scandens for middle/trace elements, induced by the enhanced nitrogen availability from ARN, was not yet beyond the nutrient-supply limits of the local soils. This study offers reference to scientific assessments of the middle/trace element status in terrestrial herbaceous plants under the global background of increasing nitrogen deposition.
authors.affiliation: Key Laboratory of Plant-Soil Interactions of Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China. hanwenxuan@cau.edu.cn
authors.forename: Wen-Xuan
authors.initials: WX
authors.lastname: Han
authors.forename: Ming-Li
authors.initials: ML
authors.lastname: Huang
authors.forename: Ao-Han
authors.initials: AH
authors.lastname: Tang
authors.forename: Jian-Lin
authors.initials: JL
authors.lastname: Shen
authors.forename: Si-Miao
authors.initials: SM
authors.lastname: Wang
authors.forename: Xue-Jun
authors.initials: XJ
authors.lastname: Liu
authors.forename: Fu-Suo
authors.initials: FS
authors.lastname: Zhang
mesh_terms: D001272:Atmosphere; D027582:Humulus / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D026361:Reactive Nitrogen Species / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*
chemical_list: D026361:Reactive Nitrogen Species; D014131:Trace Elements