Free amino acid concentrations and nitrogen isotope signatures in Pinus massoniana (Lamb.) needles of different ages for indicating atmospheric nitrogen deposition

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• 作者：Yu Xu^a ; ^b ; Huayun Xiao^a ; ^{xiaohuayun@vip.skleg.cn}
• 关键词：Free amino acids ; δ15N ; Atmospheric N deposition ; Masson pine ; Needles ; Age
• 刊名：Environmental Pollution
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：221
• 期：Complete
• 页码：180-190
• 全文大小：1443 K
• 卷排序：221

文摘

Free amino acids (FAAs) are sensitive bio-indicators of atmospheric N deposition. FAAs in young needles are more sensitive to N deposition compared to old needles. Age-dependent needle δ15N values can be used to identify atmospheric N sources.