Fertilized graminoids intensify negative drought effects on grassland productivity
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In: Global Change Biology, Vol. 27, No. 11, 01.06.2021, p. 2441-2457.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Fertilized graminoids intensify negative drought effects on grassland productivity
AU - Van Sundert, Kevin
AU - Arfin Khan, Mohammed A.S.
AU - Bharath, Siddharth
AU - Buckley, Yvonne M.
AU - Caldeira, Maria C.
AU - Donohue, Ian
AU - Dubbert, Maren
AU - Ebeling, Anne
AU - Eisenhauer, Nico
AU - Eskelinen, Anu
AU - Finn, Alain
AU - Gebauer, Tobias
AU - Haider, Sylvia
AU - Hansart, Amandine
AU - Jentsch, Anke
AU - Kübert, Angelika
AU - Nijs, Ivan
AU - Nock, Charles A.
AU - Nogueira, Carla
AU - Porath-Krause, Anita J.
AU - Radujković, Dajana
AU - Raynaud, Xavier
AU - Risch, Anita C.
AU - Roscher, Christiane
AU - Scherer-Lorenzen, Michael
AU - Schuchardt, Max A.
AU - Schütz, Martin
AU - Siebert, Julia
AU - Sitters, Judith
AU - Spohn, Marie
AU - Virtanen, Risto
AU - Werner, Christiane
AU - Wilfahrt, Peter
AU - Vicca, Sara
N1 - Publisher Copyright: © 2021 John Wiley & Sons Ltd.
PY - 2021/6/1
Y1 - 2021/6/1
N2 - Droughts can strongly affect grassland productivity and biodiversity, but responses differ widely. Nutrient availability may be a critical factor explaining this variation, but is often ignored in analyses of drought responses. Here, we used a standardized nutrient addition experiment covering 10 European grasslands to test if full-factorial nitrogen, phosphorus, and potassium addition affected plant community responses to inter-annual variation in drought stress and to the extreme summer drought of 2018 in Europe. We found that nutrient addition amplified detrimental drought effects on community aboveground biomass production. Drought effects also differed between functional groups, with a negative effect on graminoid but not forb biomass production. Our results imply that eutrophication in grasslands, which promotes dominance of drought-sensitive graminoids over forbs, amplifies detrimental drought effects. In terms of climate change adaptation, agricultural management would benefit from taking into account differential drought impacts on fertilized versus unfertilized grasslands, which differ in ecosystem services they provide to society.
AB - Droughts can strongly affect grassland productivity and biodiversity, but responses differ widely. Nutrient availability may be a critical factor explaining this variation, but is often ignored in analyses of drought responses. Here, we used a standardized nutrient addition experiment covering 10 European grasslands to test if full-factorial nitrogen, phosphorus, and potassium addition affected plant community responses to inter-annual variation in drought stress and to the extreme summer drought of 2018 in Europe. We found that nutrient addition amplified detrimental drought effects on community aboveground biomass production. Drought effects also differed between functional groups, with a negative effect on graminoid but not forb biomass production. Our results imply that eutrophication in grasslands, which promotes dominance of drought-sensitive graminoids over forbs, amplifies detrimental drought effects. In terms of climate change adaptation, agricultural management would benefit from taking into account differential drought impacts on fertilized versus unfertilized grasslands, which differ in ecosystem services they provide to society.
KW - Biology
KW - drought
KW - ecosystem
KW - functional group
KW - grassland
KW - nutrient
KW - Nutrient Network (NutNet)
UR - http://www.scopus.com/inward/record.url?scp=85102805248&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/6cb5ada7-e68f-3f55-b326-5700a67c675e/
U2 - 10.1111/gcb.15583
DO - 10.1111/gcb.15583
M3 - Journal articles
C2 - 33675118
AN - SCOPUS:85102805248
VL - 27
SP - 2441
EP - 2457
JO - Global Change Biology
JF - Global Change Biology
SN - 1354-1013
IS - 11
ER -