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Table 3

Detailed information of seven EGR modules monitored in the study

Modules	Vegetation layer	Substrate type	Substrate thickness
TP50	Sedum lineare Thunb	Pastoral soil	50 mm
TI50	Sedum lineare Thunb	Improved soil	50 mm
TU50	Sedum lineare Thunb	Ultra-low weight substrate	50 mm
TI20	Sedum lineare Thunb	Improved soil	20 mm
TI100	Sedum lineare Thunb	Improved soil	100 mm
AI50	Angiospermae	Improved soil	50 mm
LI50	Sedum aizoon L.	Improved soil	50 mm

Modules	Vegetation layer	Substrate type	Substrate thickness
TP50	Sedum lineare Thunb	Pastoral soil	50 mm
TI50	Sedum lineare Thunb	Improved soil	50 mm
TU50	Sedum lineare Thunb	Ultra-low weight substrate	50 mm
TI20	Sedum lineare Thunb	Improved soil	20 mm
TI100	Sedum lineare Thunb	Improved soil	100 mm
AI50	Angiospermae	Improved soil	50 mm
LI50	Sedum aizoon L.	Improved soil	50 mm