Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities
Efficient extraction of soil water is essential for the productivity of plant communities. However, research on the complementary use of resources in mixed plant communities, and especially the impact of plant species richness on root water uptake, is limited. So far, these investigations have been...
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creator | Guderle, Marcus Bachmann, Dörte Milcu, Alexandru Gockele, Annette Bechmann, Marcel Fischer, Christine Roscher, Christiane Landais, Damien Ravel, Olivier Devidal, Sébastien Roy, Jacques Gessler, Arthur Buchmann, Nina Weigelt, Alexandra Hildebrandt, Anke |
description | Efficient extraction of soil water is essential for the productivity of plant communities. However, research on the complementary use of resources in mixed plant communities, and especially the impact of plant species richness on root water uptake, is limited. So far, these investigations have been hindered by a lack of methods allowing for the estimation of root water uptake profiles.
The overarching aim of our study was to determine whether diverse grassland plant communities in general exploit soil water more deeply and whether this shift occurs all the time or only during times of enhanced water demand.
Root water uptake was derived by analysing the diurnal decrease in soil water content separately at each measurement depth, thus yielding root water uptake profiles for 12 experimental grasslands communities with two different levels of species richness (4 and 16 sown species). Additional measurements of leaf water potential, stomatal conductance, and root traits were used to identify differences in water relations between plant functional groups.
Although the vertical root distribution did not differ between diversity levels, root water uptake shifted towards deeper layers (30 and 60 cm) in more diverse plots during periods of high vapour pressure deficit. Our results indicate that the more diverse communities were able to adjust their root water uptake, resulting in increased water uptake per root area compared to less diverse communities (52% at 20 cm, 118% at 30 cm, and 570% at 60 cm depth) and a more even distribution of water uptake over depth. Tall herbs, which had lower leaf water potential and higher stomatal conductance in more diverse mixtures, contributed disproportionately to dynamic niche partitioning in root water uptake.
This study underpins the role of diversity in stabilizing ecosystem function and mitigating drought stress effects during future climate change scenarios. Furthermore, the results provide evidence that root water uptake is not solely controlled by root length density distribution in communities with high plant diversity but also by spatial shifts in water acquisition.
A plain language summary is available for this article.
Plain Language Summary |
doi_str_mv | 10.1111/1365-2435.12948 |
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The overarching aim of our study was to determine whether diverse grassland plant communities in general exploit soil water more deeply and whether this shift occurs all the time or only during times of enhanced water demand.
Root water uptake was derived by analysing the diurnal decrease in soil water content separately at each measurement depth, thus yielding root water uptake profiles for 12 experimental grasslands communities with two different levels of species richness (4 and 16 sown species). Additional measurements of leaf water potential, stomatal conductance, and root traits were used to identify differences in water relations between plant functional groups.
Although the vertical root distribution did not differ between diversity levels, root water uptake shifted towards deeper layers (30 and 60 cm) in more diverse plots during periods of high vapour pressure deficit. Our results indicate that the more diverse communities were able to adjust their root water uptake, resulting in increased water uptake per root area compared to less diverse communities (52% at 20 cm, 118% at 30 cm, and 570% at 60 cm depth) and a more even distribution of water uptake over depth. Tall herbs, which had lower leaf water potential and higher stomatal conductance in more diverse mixtures, contributed disproportionately to dynamic niche partitioning in root water uptake.
This study underpins the role of diversity in stabilizing ecosystem function and mitigating drought stress effects during future climate change scenarios. Furthermore, the results provide evidence that root water uptake is not solely controlled by root length density distribution in communities with high plant diversity but also by spatial shifts in water acquisition.
A plain language summary is available for this article.
Plain Language Summary</description><identifier>ISSN: 0269-8463</identifier><identifier>EISSN: 1365-2435</identifier><identifier>DOI: 10.1111/1365-2435.12948</identifier><language>eng</language><publisher>London: Wiley</publisher><subject>Biodiversity and Ecology ; biodiversity–ecosystem functioning ; Climate change ; Climate effects ; Conductance ; Demand analysis ; Density distribution ; Diurnal ; Drought ; ECOSYSTEM ECOLOGY ; Environmental changes ; Environmental Sciences ; evapotranspiration ; Functional groups ; Global Changes ; Grasslands ; Herbivores ; Leaves ; Moisture content ; Niche overlap ; niche partitioning ; Partitioning ; Plant communities ; Plant diversity ; Plant extracts ; Plant populations ; plant species richness ; Resistance ; Resource partitioning ; Root distribution ; root water uptake ; soil moisture ; Soil water ; Spatial distribution ; Species richness ; Stomata ; Stomatal conductance ; Vapor pressure ; Vertical distribution ; Water content ; Water demand ; Water depth ; Water potential ; Water relations ; Water uptake ; Water use</subject><ispartof>Functional ecology, 2018-01, Vol.32 (1), p.214-227</ispartof><rights>2017 The Authors. © 2017 British Ecological Society</rights><rights>2017 The Authors. Functional Ecology © 2017 British Ecological Society</rights><rights>Functional Ecology © 2018 British Ecological Society</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4128-91f32a9e1ee099fbd7c14c808c15b966a462af0ec42af554c737f573385beda83</citedby><cites>FETCH-LOGICAL-c4128-91f32a9e1ee099fbd7c14c808c15b966a462af0ec42af554c737f573385beda83</cites><orcidid>0000-0002-9653-7333 ; 0000-0001-9301-7909 ; 0000-0003-0826-2980 ; 0000-0002-1910-9589 ; 0000-0002-2889-1234</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/48582740$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/48582740$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,777,781,800,882,1412,1428,27905,27906,45555,45556,46390,46814,57998,58231</link.rule.ids><backlink>$$Uhttps://hal.science/hal-02480458$$DView record in HAL$$Hfree_for_read</backlink></links><search><contributor>Field, Katie</contributor><creatorcontrib>Guderle, Marcus</creatorcontrib><creatorcontrib>Bachmann, Dörte</creatorcontrib><creatorcontrib>Milcu, Alexandru</creatorcontrib><creatorcontrib>Gockele, Annette</creatorcontrib><creatorcontrib>Bechmann, Marcel</creatorcontrib><creatorcontrib>Fischer, Christine</creatorcontrib><creatorcontrib>Roscher, Christiane</creatorcontrib><creatorcontrib>Landais, Damien</creatorcontrib><creatorcontrib>Ravel, Olivier</creatorcontrib><creatorcontrib>Devidal, Sébastien</creatorcontrib><creatorcontrib>Roy, Jacques</creatorcontrib><creatorcontrib>Gessler, Arthur</creatorcontrib><creatorcontrib>Buchmann, Nina</creatorcontrib><creatorcontrib>Weigelt, Alexandra</creatorcontrib><creatorcontrib>Hildebrandt, Anke</creatorcontrib><title>Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities</title><title>Functional ecology</title><description>Efficient extraction of soil water is essential for the productivity of plant communities. However, research on the complementary use of resources in mixed plant communities, and especially the impact of plant species richness on root water uptake, is limited. So far, these investigations have been hindered by a lack of methods allowing for the estimation of root water uptake profiles.
The overarching aim of our study was to determine whether diverse grassland plant communities in general exploit soil water more deeply and whether this shift occurs all the time or only during times of enhanced water demand.
Root water uptake was derived by analysing the diurnal decrease in soil water content separately at each measurement depth, thus yielding root water uptake profiles for 12 experimental grasslands communities with two different levels of species richness (4 and 16 sown species). Additional measurements of leaf water potential, stomatal conductance, and root traits were used to identify differences in water relations between plant functional groups.
Although the vertical root distribution did not differ between diversity levels, root water uptake shifted towards deeper layers (30 and 60 cm) in more diverse plots during periods of high vapour pressure deficit. Our results indicate that the more diverse communities were able to adjust their root water uptake, resulting in increased water uptake per root area compared to less diverse communities (52% at 20 cm, 118% at 30 cm, and 570% at 60 cm depth) and a more even distribution of water uptake over depth. Tall herbs, which had lower leaf water potential and higher stomatal conductance in more diverse mixtures, contributed disproportionately to dynamic niche partitioning in root water uptake.
This study underpins the role of diversity in stabilizing ecosystem function and mitigating drought stress effects during future climate change scenarios. Furthermore, the results provide evidence that root water uptake is not solely controlled by root length density distribution in communities with high plant diversity but also by spatial shifts in water acquisition.
A plain language summary is available for this article.
Plain Language Summary</description><subject>Biodiversity and Ecology</subject><subject>biodiversity–ecosystem functioning</subject><subject>Climate change</subject><subject>Climate effects</subject><subject>Conductance</subject><subject>Demand analysis</subject><subject>Density distribution</subject><subject>Diurnal</subject><subject>Drought</subject><subject>ECOSYSTEM ECOLOGY</subject><subject>Environmental changes</subject><subject>Environmental Sciences</subject><subject>evapotranspiration</subject><subject>Functional groups</subject><subject>Global Changes</subject><subject>Grasslands</subject><subject>Herbivores</subject><subject>Leaves</subject><subject>Moisture content</subject><subject>Niche overlap</subject><subject>niche partitioning</subject><subject>Partitioning</subject><subject>Plant communities</subject><subject>Plant diversity</subject><subject>Plant extracts</subject><subject>Plant populations</subject><subject>plant species richness</subject><subject>Resistance</subject><subject>Resource partitioning</subject><subject>Root distribution</subject><subject>root water uptake</subject><subject>soil moisture</subject><subject>Soil water</subject><subject>Spatial distribution</subject><subject>Species richness</subject><subject>Stomata</subject><subject>Stomatal conductance</subject><subject>Vapor pressure</subject><subject>Vertical distribution</subject><subject>Water content</subject><subject>Water demand</subject><subject>Water depth</subject><subject>Water potential</subject><subject>Water relations</subject><subject>Water uptake</subject><subject>Water use</subject><issn>0269-8463</issn><issn>1365-2435</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkU1v1DAQQKMKpC6l556QLHHikNafiX2slpYircQFzpbXO269JHawva1W_fM4BPaKDx559N54NNM0VwRfk3puCOtESzkT14QqLs-a1Snzpllh2qlW8o6dN-9y3mOMlaB01bx-PgYzeouCt0-AJpOKLz4GHx6RDyjFWNCLKZDQYSrmJyBnrB98qamMwDlvPYQTkmGWxpgA7fwzpPp-TCbnwYQdmupdkI3jeAj1D8jvm7fODBku_8aL5sf93ff1Q7v59uXr-nbTWk6obBVxjBoFBAAr5ba73hJuJZaWiK3qOsM7ahwGy2sQgtue9U70jEmxhZ2R7KL5tNR9MoOekh9NOupovH643eg5hymXmAv5TCr7cWGnFH8dIBe9j4cUanuaKCkEk4rjSt0slE0x5wTuVJZgPW9Dz7PX8-z1n21UQyzGix_g-D9c39-t_3kfFm-fS0wnj0shaV87-Q00npbj</recordid><startdate>20180101</startdate><enddate>20180101</enddate><creator>Guderle, Marcus</creator><creator>Bachmann, Dörte</creator><creator>Milcu, Alexandru</creator><creator>Gockele, Annette</creator><creator>Bechmann, Marcel</creator><creator>Fischer, Christine</creator><creator>Roscher, Christiane</creator><creator>Landais, Damien</creator><creator>Ravel, Olivier</creator><creator>Devidal, Sébastien</creator><creator>Roy, Jacques</creator><creator>Gessler, Arthur</creator><creator>Buchmann, Nina</creator><creator>Weigelt, Alexandra</creator><creator>Hildebrandt, Anke</creator><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-9653-7333</orcidid><orcidid>https://orcid.org/0000-0001-9301-7909</orcidid><orcidid>https://orcid.org/0000-0003-0826-2980</orcidid><orcidid>https://orcid.org/0000-0002-1910-9589</orcidid><orcidid>https://orcid.org/0000-0002-2889-1234</orcidid></search><sort><creationdate>20180101</creationdate><title>Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities</title><author>Guderle, Marcus ; Bachmann, Dörte ; Milcu, Alexandru ; Gockele, Annette ; Bechmann, Marcel ; Fischer, Christine ; Roscher, Christiane ; Landais, Damien ; Ravel, Olivier ; Devidal, Sébastien ; Roy, Jacques ; Gessler, Arthur ; Buchmann, Nina ; Weigelt, Alexandra ; Hildebrandt, Anke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4128-91f32a9e1ee099fbd7c14c808c15b966a462af0ec42af554c737f573385beda83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Biodiversity and Ecology</topic><topic>biodiversity–ecosystem functioning</topic><topic>Climate change</topic><topic>Climate effects</topic><topic>Conductance</topic><topic>Demand analysis</topic><topic>Density distribution</topic><topic>Diurnal</topic><topic>Drought</topic><topic>ECOSYSTEM ECOLOGY</topic><topic>Environmental changes</topic><topic>Environmental Sciences</topic><topic>evapotranspiration</topic><topic>Functional groups</topic><topic>Global Changes</topic><topic>Grasslands</topic><topic>Herbivores</topic><topic>Leaves</topic><topic>Moisture content</topic><topic>Niche overlap</topic><topic>niche partitioning</topic><topic>Partitioning</topic><topic>Plant communities</topic><topic>Plant diversity</topic><topic>Plant extracts</topic><topic>Plant populations</topic><topic>plant species richness</topic><topic>Resistance</topic><topic>Resource partitioning</topic><topic>Root distribution</topic><topic>root water uptake</topic><topic>soil moisture</topic><topic>Soil water</topic><topic>Spatial distribution</topic><topic>Species richness</topic><topic>Stomata</topic><topic>Stomatal conductance</topic><topic>Vapor pressure</topic><topic>Vertical distribution</topic><topic>Water content</topic><topic>Water demand</topic><topic>Water depth</topic><topic>Water potential</topic><topic>Water relations</topic><topic>Water uptake</topic><topic>Water use</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guderle, Marcus</creatorcontrib><creatorcontrib>Bachmann, Dörte</creatorcontrib><creatorcontrib>Milcu, Alexandru</creatorcontrib><creatorcontrib>Gockele, Annette</creatorcontrib><creatorcontrib>Bechmann, Marcel</creatorcontrib><creatorcontrib>Fischer, Christine</creatorcontrib><creatorcontrib>Roscher, Christiane</creatorcontrib><creatorcontrib>Landais, Damien</creatorcontrib><creatorcontrib>Ravel, Olivier</creatorcontrib><creatorcontrib>Devidal, Sébastien</creatorcontrib><creatorcontrib>Roy, Jacques</creatorcontrib><creatorcontrib>Gessler, Arthur</creatorcontrib><creatorcontrib>Buchmann, Nina</creatorcontrib><creatorcontrib>Weigelt, Alexandra</creatorcontrib><creatorcontrib>Hildebrandt, Anke</creatorcontrib><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Functional ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guderle, Marcus</au><au>Bachmann, Dörte</au><au>Milcu, Alexandru</au><au>Gockele, Annette</au><au>Bechmann, Marcel</au><au>Fischer, Christine</au><au>Roscher, Christiane</au><au>Landais, Damien</au><au>Ravel, Olivier</au><au>Devidal, Sébastien</au><au>Roy, Jacques</au><au>Gessler, Arthur</au><au>Buchmann, Nina</au><au>Weigelt, Alexandra</au><au>Hildebrandt, Anke</au><au>Field, Katie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities</atitle><jtitle>Functional ecology</jtitle><date>2018-01-01</date><risdate>2018</risdate><volume>32</volume><issue>1</issue><spage>214</spage><epage>227</epage><pages>214-227</pages><issn>0269-8463</issn><eissn>1365-2435</eissn><abstract>Efficient extraction of soil water is essential for the productivity of plant communities. However, research on the complementary use of resources in mixed plant communities, and especially the impact of plant species richness on root water uptake, is limited. So far, these investigations have been hindered by a lack of methods allowing for the estimation of root water uptake profiles.
The overarching aim of our study was to determine whether diverse grassland plant communities in general exploit soil water more deeply and whether this shift occurs all the time or only during times of enhanced water demand.
Root water uptake was derived by analysing the diurnal decrease in soil water content separately at each measurement depth, thus yielding root water uptake profiles for 12 experimental grasslands communities with two different levels of species richness (4 and 16 sown species). Additional measurements of leaf water potential, stomatal conductance, and root traits were used to identify differences in water relations between plant functional groups.
Although the vertical root distribution did not differ between diversity levels, root water uptake shifted towards deeper layers (30 and 60 cm) in more diverse plots during periods of high vapour pressure deficit. Our results indicate that the more diverse communities were able to adjust their root water uptake, resulting in increased water uptake per root area compared to less diverse communities (52% at 20 cm, 118% at 30 cm, and 570% at 60 cm depth) and a more even distribution of water uptake over depth. Tall herbs, which had lower leaf water potential and higher stomatal conductance in more diverse mixtures, contributed disproportionately to dynamic niche partitioning in root water uptake.
This study underpins the role of diversity in stabilizing ecosystem function and mitigating drought stress effects during future climate change scenarios. Furthermore, the results provide evidence that root water uptake is not solely controlled by root length density distribution in communities with high plant diversity but also by spatial shifts in water acquisition.
A plain language summary is available for this article.
Plain Language Summary</abstract><cop>London</cop><pub>Wiley</pub><doi>10.1111/1365-2435.12948</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-9653-7333</orcidid><orcidid>https://orcid.org/0000-0001-9301-7909</orcidid><orcidid>https://orcid.org/0000-0003-0826-2980</orcidid><orcidid>https://orcid.org/0000-0002-1910-9589</orcidid><orcidid>https://orcid.org/0000-0002-2889-1234</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Biodiversity and Ecology biodiversity–ecosystem functioning Climate change Climate effects Conductance Demand analysis Density distribution Diurnal Drought ECOSYSTEM ECOLOGY Environmental changes Environmental Sciences evapotranspiration Functional groups Global Changes Grasslands Herbivores Leaves Moisture content Niche overlap niche partitioning Partitioning Plant communities Plant diversity Plant extracts Plant populations plant species richness Resistance Resource partitioning Root distribution root water uptake soil moisture Soil water Spatial distribution Species richness Stomata Stomatal conductance Vapor pressure Vertical distribution Water content Water demand Water depth Water potential Water relations Water uptake Water use |
title | Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities |
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