Multifunctionality is affected by interactions between green roof plant species, substrate depth, and substrate type

Urban Farm DB summary

This study examined how combinations of 20 plant species from 5 families, two substrate types (natural soil vs. artificial), and two depths (10 cm vs. 30 cm) affect green roof ecosystem functions including water retention, biomass production, nutrient cycling, and transpiration. Artificial substrates increased aboveground biomass 1.4-3.5 times relative to natural soil, and deep substrates produced 2-3 times more biomass than shallow ones on natural soil (1.4-1.9 times on artificial substrate), but no single combination of factors enhanced all studied ecosystem functions simultaneously.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 1.4–3.5 fold↑ Increase

  aboveground biomass vs natural soil(green roof artificial substrate)

  CompostControl: 自然土壌基盤
• 2–3 fold↑ Increase

  aboveground biomass vs shallow(green roof deep natural soil)

  CompostControl: 浅い(10cm)自然土壌基盤

  method

  深さ30cm vs 10cm

• 1.4–1.9 fold↑ Increase

  aboveground biomass vs shallow(green roof deep artificial substrate)

  CompostControl: 浅い(10cm)人工基盤

  method

  深さ30cm vs 10cm

Direction of conclusions

Each author conclusion is recorded only as a coded direction per topic. Read the original for the conclusion itself.

• Yield and productivityMixedWith caveats