Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii

Nutrient stoichiometry and trade-offs focusing on the mass balance of multiple nutrient elements play important roles in the response mechanism of plants to environmental stresses in wetlands. Nonetheless, little is known about the response dynamics and trade-offs of nutrient elements of wetland pla...

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Autores principales:	Dongjie Zhang, Qing Qi, Shouzheng Tong, Jim Wang, Mingye Zhang, Guanglei Zhu, Xianguo Lu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Nutrient stoichiometry Hydrological fluctuation Carex schmidtii tussocks Scaling exponents Nutrient trade-offs Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/cb6718cfd7694d7fb42abf10505c57c2
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spelling	oai:doaj.org-article:cb6718cfd7694d7fb42abf10505c57c22021-12-01T04:29:24ZEffect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii1470-160X10.1016/j.ecolind.2020.106924https://doaj.org/article/cb6718cfd7694d7fb42abf10505c57c22021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20308633https://doaj.org/toc/1470-160XNutrient stoichiometry and trade-offs focusing on the mass balance of multiple nutrient elements play important roles in the response mechanism of plants to environmental stresses in wetlands. Nonetheless, little is known about the response dynamics and trade-offs of nutrient elements of wetland plants, especially potassium (K), under hydrological fluctuation conditions. Greenhouse experiments have been undertaken to assess the effects of initial water level (DW), water-level amplitude (AW), lasted time and their interactions on the response processes of nutrient stoichiometry of Carex schmidtii. Plant nutrient trade-offs and limitation were investigated under multiple hydrological fluctuation conditions. Results showed that plant nitrogen (N), K and their ratio were significantly influenced by DW. Lasted time significantly affected nutrient stoichiometry except for N:P ratio. Plant N:K ratio were sensitive to the three factors and their interactions. Moreover, plant N:P and N:K ratios indicated a significant P limitation and K limitation for the growth of C. schmidtii, respectively. The scaling exponents showed that DW, AW and their interaction have significant effects on the relationships of P ~ N, K ~ N and K ~ P. Principal component analysis indicated that lasted time had significant effects on the nutrient balances. Hydrological fluctuation resulted in changes in plant nutrients and their ratios, but nutrient trade-offs relieved the negative effects. These findings help in understanding the nutrient stoichiometry and response mechanism of C. schmidtii to hydrological fluctuation and provide invaluable information for nutrient and hydrological management for tussock wetlands.Dongjie ZhangQing QiShouzheng TongJim WangMingye ZhangGuanglei ZhuXianguo LuElsevierarticleNutrient stoichiometryHydrological fluctuationCarex schmidtii tussocksScaling exponentsNutrient trade-offsEcologyQH540-549.5ENEcological Indicators, Vol 120, Iss , Pp 106924- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nutrient stoichiometry Hydrological fluctuation Carex schmidtii tussocks Scaling exponents Nutrient trade-offs Ecology QH540-549.5
spellingShingle	Nutrient stoichiometry Hydrological fluctuation Carex schmidtii tussocks Scaling exponents Nutrient trade-offs Ecology QH540-549.5 Dongjie Zhang Qing Qi Shouzheng Tong Jim Wang Mingye Zhang Guanglei Zhu Xianguo Lu Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
description	Nutrient stoichiometry and trade-offs focusing on the mass balance of multiple nutrient elements play important roles in the response mechanism of plants to environmental stresses in wetlands. Nonetheless, little is known about the response dynamics and trade-offs of nutrient elements of wetland plants, especially potassium (K), under hydrological fluctuation conditions. Greenhouse experiments have been undertaken to assess the effects of initial water level (DW), water-level amplitude (AW), lasted time and their interactions on the response processes of nutrient stoichiometry of Carex schmidtii. Plant nutrient trade-offs and limitation were investigated under multiple hydrological fluctuation conditions. Results showed that plant nitrogen (N), K and their ratio were significantly influenced by DW. Lasted time significantly affected nutrient stoichiometry except for N:P ratio. Plant N:K ratio were sensitive to the three factors and their interactions. Moreover, plant N:P and N:K ratios indicated a significant P limitation and K limitation for the growth of C. schmidtii, respectively. The scaling exponents showed that DW, AW and their interaction have significant effects on the relationships of P ~ N, K ~ N and K ~ P. Principal component analysis indicated that lasted time had significant effects on the nutrient balances. Hydrological fluctuation resulted in changes in plant nutrients and their ratios, but nutrient trade-offs relieved the negative effects. These findings help in understanding the nutrient stoichiometry and response mechanism of C. schmidtii to hydrological fluctuation and provide invaluable information for nutrient and hydrological management for tussock wetlands.
format	article
author	Dongjie Zhang Qing Qi Shouzheng Tong Jim Wang Mingye Zhang Guanglei Zhu Xianguo Lu
author_facet	Dongjie Zhang Qing Qi Shouzheng Tong Jim Wang Mingye Zhang Guanglei Zhu Xianguo Lu
author_sort	Dongjie Zhang
title	Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
title_short	Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
title_full	Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
title_fullStr	Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
title_full_unstemmed	Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii
title_sort	effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of carex schmidtii
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/cb6718cfd7694d7fb42abf10505c57c2
work_keys_str_mv	AT dongjiezhang effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT qingqi effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT shouzhengtong effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT jimwang effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT mingyezhang effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT guangleizhu effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii AT xianguolu effectofhydrologicalfluctuationonnutrientstoichiometryandtradeoffsofcarexschmidtii
_version_	1718405927785201664

Effect of hydrological fluctuation on nutrient stoichiometry and trade-offs of Carex schmidtii

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