Publikation: Environmental effects on soil NO concentrations and root N uptake in beech and spruce forests
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2016
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Journal of Plant Nutrition and Soil Science. 2016, 179(2), pp. 244-256. ISSN 0044-3263. eISSN 1522-2624. Available under: doi: 10.1002/jpln.201500191
Zusammenfassung
This study aimed to investigate the shifts in net nitrogen (N) uptake and N compounds of fine roots over the vegetation period (i.e., spring, summer, autumn) and correlate this with NO concentration in the soil. Soil NO concentration was measured using gas lysimeters for collection and a chemiluminescence analyzer for quantification. Net N uptake by the roots was determined using the 15N enrichment technique. N pools were quantified using spectrophotometric techniques. Soil NO concentrations at beech and spruce forest sites were highest in spring (June), and lowest in winter (December). Total N of the roots was similar during the seasons and between the two years under study despite considerable variation of different N compounds. Net N uptake generally increased with higher N supply. Correlation analysis revealed a positive relationship between soil NO concentration and net N uptake only for spruce trees. This relationship seemed to be modulated by environmental factors and tree species.
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570 Biowissenschaften, Biologie
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DONG, Fang, Judy SIMON, Michael RIENKS, Jürgen SCHÄFFER, Klaus VON WILPERT, Heinz RENNENBERG, 2016. Environmental effects on soil NO concentrations and root N uptake in beech and spruce forests. In: Journal of Plant Nutrition and Soil Science. 2016, 179(2), pp. 244-256. ISSN 0044-3263. eISSN 1522-2624. Available under: doi: 10.1002/jpln.201500191BibTex
@article{Dong2016Envir-34093,
year={2016},
doi={10.1002/jpln.201500191},
title={Environmental effects on soil NO concentrations and root N uptake in beech and spruce forests},
number={2},
volume={179},
issn={0044-3263},
journal={Journal of Plant Nutrition and Soil Science},
pages={244--256},
author={Dong, Fang and Simon, Judy and Rienks, Michael and Schäffer, Jürgen and von Wilpert, Klaus and Rennenberg, Heinz}
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<dcterms:abstract xml:lang="eng">This study aimed to investigate the shifts in net nitrogen (N) uptake and N compounds of fine roots over the vegetation period (i.e., spring, summer, autumn) and correlate this with NO concentration in the soil. Soil NO concentration was measured using gas lysimeters for collection and a chemiluminescence analyzer for quantification. Net N uptake by the roots was determined using the 15N enrichment technique. N pools were quantified using spectrophotometric techniques. Soil NO concentrations at beech and spruce forest sites were highest in spring (June), and lowest in winter (December). Total N of the roots was similar during the seasons and between the two years under study despite considerable variation of different N compounds. Net N uptake generally increased with higher N supply. Correlation analysis revealed a positive relationship between soil NO concentration and net N uptake only for spruce trees. This relationship seemed to be modulated by environmental factors and tree species.</dcterms:abstract>
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