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The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis

The trade-offs between key functional traits in plants have a decisive impact on biomass production. However, how precipitation and nutrient deposition affect the trade-offs in traits and, ultimately, productivity is still unclear. In the present study, a mesocosm experiment was conducted to explore...

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Autores principales: Tong, Ruqiang, Yang, Xinran, Wang, Qiuyue, Li, Lin, Li, Yanan, Shi, Yujie, Mu, Chunsheng, Wang, Junfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181414/
https://www.ncbi.nlm.nih.gov/pubmed/37176839
http://dx.doi.org/10.3390/plants12091781
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author Tong, Ruqiang
Yang, Xinran
Wang, Qiuyue
Li, Lin
Li, Yanan
Shi, Yujie
Mu, Chunsheng
Wang, Junfeng
author_facet Tong, Ruqiang
Yang, Xinran
Wang, Qiuyue
Li, Lin
Li, Yanan
Shi, Yujie
Mu, Chunsheng
Wang, Junfeng
author_sort Tong, Ruqiang
collection PubMed
description The trade-offs between key functional traits in plants have a decisive impact on biomass production. However, how precipitation and nutrient deposition affect the trade-offs in traits and, ultimately, productivity is still unclear. In the present study, a mesocosm experiment was conducted to explore the relationships between biomass production and the aboveground and belowground key functional traits and their trade-offs under changes in precipitation and nutrient depositions in Leymus chinensis, a monodominant perennial rhizome grass widespread in the eastern Eurasian steppe. Our results showed that moisture is the key factor regulating the effect of nitrogen (N) and phosphorus (P) deposition on increased biomass production. Under conditions of average precipitation, water use efficiency (WUE) was the key trait determining the biomass of L. chinensis. There were obvious trade-offs between WUE and leaf area, specific leaf area, leaf thickness, and leaf dry matter. Conversely, under increasing precipitation, the effect of restricted soil water on leaf traits was relieved; the key limiting trait changed from WUE to plant height. These findings indicate that the shift of fundamental traits of photosynthetic carbon gain induced by precipitation under N and P deposition is the key ecological driving mechanism for the biomass production of typical dominant species in semi-arid grassland.
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spelling pubmed-101814142023-05-13 The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis Tong, Ruqiang Yang, Xinran Wang, Qiuyue Li, Lin Li, Yanan Shi, Yujie Mu, Chunsheng Wang, Junfeng Plants (Basel) Article The trade-offs between key functional traits in plants have a decisive impact on biomass production. However, how precipitation and nutrient deposition affect the trade-offs in traits and, ultimately, productivity is still unclear. In the present study, a mesocosm experiment was conducted to explore the relationships between biomass production and the aboveground and belowground key functional traits and their trade-offs under changes in precipitation and nutrient depositions in Leymus chinensis, a monodominant perennial rhizome grass widespread in the eastern Eurasian steppe. Our results showed that moisture is the key factor regulating the effect of nitrogen (N) and phosphorus (P) deposition on increased biomass production. Under conditions of average precipitation, water use efficiency (WUE) was the key trait determining the biomass of L. chinensis. There were obvious trade-offs between WUE and leaf area, specific leaf area, leaf thickness, and leaf dry matter. Conversely, under increasing precipitation, the effect of restricted soil water on leaf traits was relieved; the key limiting trait changed from WUE to plant height. These findings indicate that the shift of fundamental traits of photosynthetic carbon gain induced by precipitation under N and P deposition is the key ecological driving mechanism for the biomass production of typical dominant species in semi-arid grassland. MDPI 2023-04-26 /pmc/articles/PMC10181414/ /pubmed/37176839 http://dx.doi.org/10.3390/plants12091781 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tong, Ruqiang
Yang, Xinran
Wang, Qiuyue
Li, Lin
Li, Yanan
Shi, Yujie
Mu, Chunsheng
Wang, Junfeng
The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title_full The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title_fullStr The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title_full_unstemmed The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title_short The Shift in Key Functional Traits Caused by Precipitation under Nitrogen and Phosphorus Deposition Drives Biomass Change in Leymus chinensis
title_sort shift in key functional traits caused by precipitation under nitrogen and phosphorus deposition drives biomass change in leymus chinensis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181414/
https://www.ncbi.nlm.nih.gov/pubmed/37176839
http://dx.doi.org/10.3390/plants12091781
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