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Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China

1. Plant root variations and their relations with soil moisture and nutrient supply have been well documented for many species, while effects of drought, combined with extreme poor soil nutrients, on plant roots remain unclear. 2. Herein, we addressed root vertical distributions of two typical xerop...

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Detalles Bibliográficos
Autores principales: Gao, Xiuli, Liu, Xiaoqiang, Ma, Linna, Wang, Renzhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7083654/
https://www.ncbi.nlm.nih.gov/pubmed/32211181
http://dx.doi.org/10.1002/ece3.6135
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author Gao, Xiuli
Liu, Xiaoqiang
Ma, Linna
Wang, Renzhong
author_facet Gao, Xiuli
Liu, Xiaoqiang
Ma, Linna
Wang, Renzhong
author_sort Gao, Xiuli
collection PubMed
description 1. Plant root variations and their relations with soil moisture and nutrient supply have been well documented for many species, while effects of drought, combined with extreme poor soil nutrients, on plant roots remain unclear. 2. Herein, we addressed root vertical distributions of two typical xerophyte semishrub species, Artemisia sphaerocephala and A. intramongolica, and their relations with soil moisture, total soil nitrogen and carbon contents in arid Hunshandake desert, China. The two species experienced similar light regimes and precipitation, but differed in soil moisture and soil nutrients. 3. Root vertical distribution patterns (e.g., coarse root diameter, root depth and root biomass) differed considerable for the two species due to high heterogeneity of soil environments. Coarse and fine root biomasses for A. intramongolica, distributed in relatively moist fixed dunes, mainly focused on surface layers (94%); but those for A. sphaerocephala dropped gradually from the surface to 140 cm depth. Relations between root traits (e.g., diameter, root biomass) and soil moisture were positive for A. intramongolica, but those for A. sphaerocephala were negative. 4. In general, the root traits for both species positively correlated with total soil nitrogen and carbon contents. These findings suggest that both soil moisture and poor soil nutrients were the limiting resources for growth and settlement of these two species.
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spelling pubmed-70836542020-03-24 Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China Gao, Xiuli Liu, Xiaoqiang Ma, Linna Wang, Renzhong Ecol Evol Original Research 1. Plant root variations and their relations with soil moisture and nutrient supply have been well documented for many species, while effects of drought, combined with extreme poor soil nutrients, on plant roots remain unclear. 2. Herein, we addressed root vertical distributions of two typical xerophyte semishrub species, Artemisia sphaerocephala and A. intramongolica, and their relations with soil moisture, total soil nitrogen and carbon contents in arid Hunshandake desert, China. The two species experienced similar light regimes and precipitation, but differed in soil moisture and soil nutrients. 3. Root vertical distribution patterns (e.g., coarse root diameter, root depth and root biomass) differed considerable for the two species due to high heterogeneity of soil environments. Coarse and fine root biomasses for A. intramongolica, distributed in relatively moist fixed dunes, mainly focused on surface layers (94%); but those for A. sphaerocephala dropped gradually from the surface to 140 cm depth. Relations between root traits (e.g., diameter, root biomass) and soil moisture were positive for A. intramongolica, but those for A. sphaerocephala were negative. 4. In general, the root traits for both species positively correlated with total soil nitrogen and carbon contents. These findings suggest that both soil moisture and poor soil nutrients were the limiting resources for growth and settlement of these two species. John Wiley and Sons Inc. 2020-03-04 /pmc/articles/PMC7083654/ /pubmed/32211181 http://dx.doi.org/10.1002/ece3.6135 Text en © 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Gao, Xiuli
Liu, Xiaoqiang
Ma, Linna
Wang, Renzhong
Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title_full Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title_fullStr Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title_full_unstemmed Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title_short Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China
title_sort root vertical distributions of two artemisia species and their relationships with soil resources in the hunshandake desert, china
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7083654/
https://www.ncbi.nlm.nih.gov/pubmed/32211181
http://dx.doi.org/10.1002/ece3.6135
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