Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths

Phreatophytes are deep-rooted plants that reach groundwater and are widely distributed in arid and semiarid areas around the world. Multiple environmental factors affect the growth of phreatophytes in desert ecosystems. However, the key factor determining the leaf nutrients of phreatophytes in arid...

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Autores principales:	Bo Zhang, Gangliang Tang, Hanlin Luo, Hui Yin, Zhihao Zhang, Jie Xue, Caibian Huang, Yan Lu, Muhammad Shareef, Xiaopeng Gao, Fanjiang Zeng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ecological stoichiometry <i>Alhagi sparsifolia</i> groundwater table soil salt extremely arid region ecological protection Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/b0b4880af98d44749650b7bba27d0d6e
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spelling	oai:doaj.org-article:b0b4880af98d44749650b7bba27d0d6e2021-11-11T19:57:08ZTopsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths10.3390/w132130932073-4441https://doaj.org/article/b0b4880af98d44749650b7bba27d0d6e2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3093https://doaj.org/toc/2073-4441Phreatophytes are deep-rooted plants that reach groundwater and are widely distributed in arid and semiarid areas around the world. Multiple environmental factors affect the growth of phreatophytes in desert ecosystems. However, the key factor determining the leaf nutrients of phreatophytes in arid regions remains elusive. This study aimed to reveal the key factors affecting the ecological stoichiometry of desert phreatophytes in the shallow groundwater of three oases at the southern rim of the Taklimakan Desert in Central Asia. Groundwater depth; groundwater pH and the degree of mineralization of groundwater; topsoil pH and salt concentration; topsoil and leaf carbon, nitrogen, and phosphorus concentrations of phreatophytic <i>Alhagi sparsifolia</i> grown at groundwater depths of 1.3–2.2 m in the saturated aquifer zone in a desert–oasis ecotone in northwestern China were investigated. Groundwater depth was closely related to the mineralization degree of groundwater, topsoil C and P concentrations, and topsoil salt content and pH. The ecological stoichiometry of <i>A. sparsifolia</i> was influenced by depth, pH and the degree of mineralization of groundwater, soil nutrients and salt concentration. However, the effects of soil C and P concentrations on the leaf C and N concentrations of <i>A. sparsifolia</i> were higher than those of groundwater depth and pH and soil salt concentration. Moreover, <i>A. sparsifolia</i> absorbed more N in the soil than in the groundwater and atmosphere. This quantitative study provides new insights into the nutrient utilization of a desert phreatophyte grown at shallow groundwater depths in extremely arid desert ecosystems.Bo ZhangGangliang TangHanlin LuoHui YinZhihao ZhangJie XueCaibian HuangYan LuMuhammad ShareefXiaopeng GaoFanjiang ZengMDPI AGarticleecological stoichiometry<i>Alhagi sparsifolia</i>groundwater tablesoil saltextremely arid regionecological protectionHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3093, p 3093 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ecological stoichiometry <i>Alhagi sparsifolia</i> groundwater table soil salt extremely arid region ecological protection Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	ecological stoichiometry <i>Alhagi sparsifolia</i> groundwater table soil salt extremely arid region ecological protection Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Bo Zhang Gangliang Tang Hanlin Luo Hui Yin Zhihao Zhang Jie Xue Caibian Huang Yan Lu Muhammad Shareef Xiaopeng Gao Fanjiang Zeng Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
description	Phreatophytes are deep-rooted plants that reach groundwater and are widely distributed in arid and semiarid areas around the world. Multiple environmental factors affect the growth of phreatophytes in desert ecosystems. However, the key factor determining the leaf nutrients of phreatophytes in arid regions remains elusive. This study aimed to reveal the key factors affecting the ecological stoichiometry of desert phreatophytes in the shallow groundwater of three oases at the southern rim of the Taklimakan Desert in Central Asia. Groundwater depth; groundwater pH and the degree of mineralization of groundwater; topsoil pH and salt concentration; topsoil and leaf carbon, nitrogen, and phosphorus concentrations of phreatophytic <i>Alhagi sparsifolia</i> grown at groundwater depths of 1.3–2.2 m in the saturated aquifer zone in a desert–oasis ecotone in northwestern China were investigated. Groundwater depth was closely related to the mineralization degree of groundwater, topsoil C and P concentrations, and topsoil salt content and pH. The ecological stoichiometry of <i>A. sparsifolia</i> was influenced by depth, pH and the degree of mineralization of groundwater, soil nutrients and salt concentration. However, the effects of soil C and P concentrations on the leaf C and N concentrations of <i>A. sparsifolia</i> were higher than those of groundwater depth and pH and soil salt concentration. Moreover, <i>A. sparsifolia</i> absorbed more N in the soil than in the groundwater and atmosphere. This quantitative study provides new insights into the nutrient utilization of a desert phreatophyte grown at shallow groundwater depths in extremely arid desert ecosystems.
format	article
author	Bo Zhang Gangliang Tang Hanlin Luo Hui Yin Zhihao Zhang Jie Xue Caibian Huang Yan Lu Muhammad Shareef Xiaopeng Gao Fanjiang Zeng
author_facet	Bo Zhang Gangliang Tang Hanlin Luo Hui Yin Zhihao Zhang Jie Xue Caibian Huang Yan Lu Muhammad Shareef Xiaopeng Gao Fanjiang Zeng
author_sort	Bo Zhang
title	Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
title_short	Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
title_full	Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
title_fullStr	Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
title_full_unstemmed	Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths
title_sort	topsoil nutrients drive leaf carbon and nitrogen concentrations of a desert phreatophyte in habitats with different shallow groundwater depths
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b0b4880af98d44749650b7bba27d0d6e
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Topsoil Nutrients Drive Leaf Carbon and Nitrogen Concentrations of a Desert Phreatophyte in Habitats with Different Shallow Groundwater Depths

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