Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition
Increased nitrogen (N) input can potentially lead to secondary phosphorus (P) limitation; however, it remains unclear whether differences in the plant's ability to cope with this P deficiency are related to their growth responses. Using a long-term experiment of N addition in a boreal forest, w...
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KeAi Communications Co., Ltd.
2024-01-01
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| Series: | Forest Ecosystems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2197562024000575 |
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| author | Aijun Xing Haihua Shen Longchao Xu Mengying Zhao Zhengbing Yan Jingyun Fang |
| author_facet | Aijun Xing Haihua Shen Longchao Xu Mengying Zhao Zhengbing Yan Jingyun Fang |
| author_sort | Aijun Xing |
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| description | Increased nitrogen (N) input can potentially lead to secondary phosphorus (P) limitation; however, it remains unclear whether differences in the plant's ability to cope with this P deficiency are related to their growth responses. Using a long-term experiment of N addition in a boreal forest, we explored the potential role of plant nutrient resorption efficiency and its stoichiometry in mediating plant growth responses to increased N input. We recorded the cover and measured the concentration and resorption efficiency of leaf N and P as well as the photosynthesis of a grass Deyeuxia angustifolia and a shrub Vaccinium vitis-idaea. The cover of the grass D. angustifolia increased with increasing N addition, while that of the shrub V. vitis-idaea decreased with N addition rate and almost disappeared from the high-level N addition over time. P resorption efficiency (PRE) increased in D. angustifolia but decreased in V. vitis-idaea with increasing leaf N:P which was increased by N addition for both species. In addition, photosynthesis increased linearly with N resorption efficiency (NRE) and PRE but was better explained by NRE:PRE, changing nonlinearly with the ratio in a hump-shaped trend. Furthermore, the variance (CV) of NRE:PRE for V. vitis-idaea (123%) was considerably higher than that for D. angustifolia (29%), indicating a more stable nutrient resorption stoichiometry of the grass. Taken together, these results highlight that efficient P acquisition and use strategy through nutrient resorption processes could be a pivotal underlying mechanism driving plant growth and community composition shifts under N enrichment. |
| format | Article |
| id | doaj-art-e4c46cdec46a440389512392f278d6cd |
| institution | OA Journals |
| issn | 2197-5620 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Forest Ecosystems |
| spelling | doaj-art-e4c46cdec46a440389512392f278d6cd2025-08-20T02:11:37ZengKeAi Communications Co., Ltd.Forest Ecosystems2197-56202024-01-011110022110.1016/j.fecs.2024.100221Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen additionAijun Xing0Haihua Shen1Longchao Xu2Mengying Zhao3Zhengbing Yan4Jingyun Fang5State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Corresponding author. State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; College of Ecology, Taiyuan University of Technology, Shanxi, 030024, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, 100871, ChinaIncreased nitrogen (N) input can potentially lead to secondary phosphorus (P) limitation; however, it remains unclear whether differences in the plant's ability to cope with this P deficiency are related to their growth responses. Using a long-term experiment of N addition in a boreal forest, we explored the potential role of plant nutrient resorption efficiency and its stoichiometry in mediating plant growth responses to increased N input. We recorded the cover and measured the concentration and resorption efficiency of leaf N and P as well as the photosynthesis of a grass Deyeuxia angustifolia and a shrub Vaccinium vitis-idaea. The cover of the grass D. angustifolia increased with increasing N addition, while that of the shrub V. vitis-idaea decreased with N addition rate and almost disappeared from the high-level N addition over time. P resorption efficiency (PRE) increased in D. angustifolia but decreased in V. vitis-idaea with increasing leaf N:P which was increased by N addition for both species. In addition, photosynthesis increased linearly with N resorption efficiency (NRE) and PRE but was better explained by NRE:PRE, changing nonlinearly with the ratio in a hump-shaped trend. Furthermore, the variance (CV) of NRE:PRE for V. vitis-idaea (123%) was considerably higher than that for D. angustifolia (29%), indicating a more stable nutrient resorption stoichiometry of the grass. Taken together, these results highlight that efficient P acquisition and use strategy through nutrient resorption processes could be a pivotal underlying mechanism driving plant growth and community composition shifts under N enrichment.http://www.sciencedirect.com/science/article/pii/S2197562024000575Nitrogen depositionUnderstory layerCommunity shiftNutrient limitationPhosphorus resorption efficiencyStoichiometric homeostasis |
| spellingShingle | Aijun Xing Haihua Shen Longchao Xu Mengying Zhao Zhengbing Yan Jingyun Fang Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition Forest Ecosystems Nitrogen deposition Understory layer Community shift Nutrient limitation Phosphorus resorption efficiency Stoichiometric homeostasis |
| title | Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition |
| title_full | Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition |
| title_fullStr | Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition |
| title_full_unstemmed | Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition |
| title_short | Linking nutrient resorption stoichiometry with plant growth under long-term nitrogen addition |
| title_sort | linking nutrient resorption stoichiometry with plant growth under long term nitrogen addition |
| topic | Nitrogen deposition Understory layer Community shift Nutrient limitation Phosphorus resorption efficiency Stoichiometric homeostasis |
| url | http://www.sciencedirect.com/science/article/pii/S2197562024000575 |
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