caa a22 4500 606218580 CHVBK 20210128101113.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s11104-014-2282-7 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2282-7 Contrasting responses in leaf nutrient-use strategies of two dominant grass species along a 30-yr temperate steppe grazing exclusion chronosequence [Elektronische Daten] [Xiao-Tao Lü, Grégoire Freschet, Elena Kazakou, Zheng-Wen Wang, Li-Shi Zhou, Xing-Guo Han] Aims: Grazing exclusion practices can be promising restoration techniques where ecosystem degradation follows from rapidly increasing grazing pressure, as widely observed in northern Chinese grasslands. However, the mechanisms of plant-soil interactions responsible for nutrient cycling restoration remain unclear. Methods: We examined the functional response of the two most dominant grass species with contrasting nutrient economies to a grazing exclusion chronosequence varying greatly in soil moisture and extractable N and P. Results: The relative biomass of the nutrient acquisitive species Leymus chinensis increased while that of the nutrient conservative Stipa grandis decreased across the chronosequence. Leymus chinensis displayed increasing leaf nutrient concentration and decreasing nutrient resorption with time since grazing exclusion for both N and P. In contrast, S. grandis showed decreasing leaf N and P concentrations and largely stable nutrient resorption. Conclusions: These differences in plasticity, with respect to nutrient stoichiometry and resorption, suggest contrasting abilities of these two dominant species to compete for soil resources and/or differences in their affinity to the changing forms of soil available N and P likely occurring along the restoration gradient. Ecosystem trajectory of change after grazing exclusion appears therefore largely dependent on the nutrient use strategies of co-occurring dominant grassland species. Springer International Publishing Switzerland, 2014 Ecological stoichiometry nationallicence Grazing exclusion nationallicence N:P ratio nationallicence Nutrient resorption nationallicence Plant-soil feedback nationallicence Restoration chronosequence nationallicence Semi-arid grassland nationallicence Species-specific response nationallicence Lü Xiao-Tao State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut Freschet Grégoire Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden aut Kazakou Elena Montpellier SupAgro, UMR Centre d'Ecologie Fonctionnelle et Evolutive 5175, 1919 route de Mende, 34293, Montpellier, France aut Wang Zheng-Wen State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut Zhou Li-Shi State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, 100093, Beijing, China aut Han Xing-Guo State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 69-79 0032-079X 387:1-2<69 2015 387 11104 https://doi.org/10.1007/s11104-014-2282-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2282-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lü Xiao-Tao State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut NATIONALLICENCE 700 1- Freschet Grégoire Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden aut NATIONALLICENCE 700 1- Kazakou Elena Montpellier SupAgro, UMR Centre d'Ecologie Fonctionnelle et Evolutive 5175, 1919 route de Mende, 34293, Montpellier, France aut NATIONALLICENCE 700 1- Wang Zheng-Wen State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut NATIONALLICENCE 700 1- Zhou Li-Shi State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, 100093, Beijing, China aut NATIONALLICENCE 700 1- Han Xing-Guo State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, 110164, Shenyang, China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 69-79 0032-079X 387:1-2<69 2015 387 11104