Experimental considerations in metal mobilization from soil by chelating ligands: The influence of soil-solution ratio and pre-equilibration - A case study on Fe acquisition by phytosiderophores

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• 作者：W.D.C. Schenkeveld^a ; ^{walter.schenkeveld@univie.ac.at} ; R.L. Kimber^a ; M. Walter^a ; E. Oburger^b ; M. Puschenreiter^b ; S.M. Kraemer^a ; ^{stephan.kraemer@univie.ac.at}
• 关键词：Chelating agent ; Soil solution ratio (SSR) ; Pre-equilibration ; Metal mobilization ; Phytosiderophore ; Fe acquisition
• 刊名：Science of The Total Environment
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：579
• 期：Complete
• 页码：1831-1842
• 全文大小：801 K
• 卷排序：579

文摘

Metal mobilizing efficiency of chelators is often tested under non-field-like conditions. Soil solution ratio (SSR) strongly affects metal mobilization by chelators. For a fixed ligand to soil ratio, metal complexation scales linearly with SSR. Soil drying generates labile metal pools that are rapidly mobilized by chelators. Pre-equilibration reduces the size of drying-related labile metal pools.