@article{fdi:010069770,
  title = {{M}ultifunctionality is affected by interactions between green roof plant species, substrate depth, and substrate type},
  author = {{D}usza, {Y}. and {B}arot, {S}{\'e}bastien and {K}raepiel, {Y}. and {L}ata, {J}.{C}. and {A}bbadie, {L}. and {R}aynaud, {X}.},
  editor = {},
  language = {{ENG}},
  abstract = {{G}reen roofs provide ecosystem services through evapotranspiration and nutrient cycling that depend, among others, on plant species, substrate type, and substrate depth. {H}owever, no study has assessed thoroughly how interactions between these factors alter ecosystem functions and multifunctionality of green roofs. {W}e simulated some green roof conditions in a pot experiment. {W}e planted 20 plant species from 10 genera and five families ({A}steraceae, {C}aryophyllaceae, {C}rassulaceae, {F}abaceae, and {P}oaceae) on two substrate types (natural vs. artificial) and two substrate depths (10 cm vs. 30 cm). {A}s indicators of major ecosystem functions, we measured aboveground and belowground biomasses, foliar nitrogen and carbon content, foliar transpiration, substrate water retention, and dissolved organic carbon and nitrates in leachates. {I}nteractions between substrate type and depth strongly affected ecosystem functions. {B}iomass production was increased in the artificial substrate and deeper substrates, as was water retention in most cases. {I}n contrast, dissolved organic carbon leaching was higher in the artificial substrates. {E}xcept for the {F}abaceae species, nitrate leaching was reduced in deep, natural soils. {T}he highest transpiration rates were associated with natural soils. {A}ll functions were modulated by plant families or species. {P}lant effects differed according to the observed function and the type and depth of the substrate. {F}abaceae species grown on natural soils had the most noticeable patterns, allowing high biomass production and high water retention but also high nitrate leaching from deep pots. {N}o single combination of factors enhanced simultaneously all studied ecosystem functions, highlighting that soil–plant interactions induce trade-offs between ecosystem functions. {S}ubstrate type and depth interactions are major drivers for green roof multifunctionality.},
  keywords = {},
  booktitle = {},
  journal = {{E}cology and {E}volution},
  volume = {7},
  numero = {7},
  pages = {2357--2369},
  ISSN = {2045-7758},
  year = {2017},
  DOI = {10.1002/ece3.2691},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069770},
}