Table 1. Summary of existing studies on... | Emerald Publishing

Table 1.

Summary of existing studies on the effects of plants on SWRC

Plant species	Soil type	Dry density: Mg/m³	Observed plant effects	Reference
Orange jasmine (Murraya paniculata); vetiver grass (Chrysopgon zizanioides)	Poorly graded sand (SP)	1·31	Water retention capacity increased in both vegetated soils	Rahardjo et al. (2014)
Ivy tree (Schefflera heptaphylla)	Silty sand (SM)	1·49	Vegetated soil has higher air-entry value (AEV) but similar desorption rate, compared with bare soil	Leung et al. (2015)
Ivy tree (Schefflera heptaphylla)	Silty sand (SM)	1·78	Water retention capacity increased at intermediate (e.g. 120 mm) and wide plant spacing (e.g. 180 mm), but it reduced at close plant spacing (e.g. 60 mm).	Ng et al. (2016a)
Vetiver grass (Chrysopgon zizanioides)	Low-plasticity silt (ML)	1·31	AEV increased with root biomass but then decreased after a certain threshold root biomass	Jotisankasa & Sirirattanachat (2017)

Plant species	Soil type	Dry density: Mg/m³	Observed plant effects	Reference
Orange jasmine (Murraya paniculata); vetiver grass (Chrysopgon zizanioides)	Poorly graded sand (SP)	1·31	Water retention capacity increased in both vegetated soils	Rahardjo et al. (2014)
Ivy tree (Schefflera heptaphylla)	Silty sand (SM)	1·49	Vegetated soil has higher air-entry value (AEV) but similar desorption rate, compared with bare soil	Leung et al. (2015)
Ivy tree (Schefflera heptaphylla)	Silty sand (SM)	1·78	Water retention capacity increased at intermediate (e.g. 120 mm) and wide plant spacing (e.g. 180 mm), but it reduced at close plant spacing (e.g. 60 mm).	Ng et al. (2016a)
Vetiver grass (Chrysopgon zizanioides)	Low-plasticity silt (ML)	1·31	AEV increased with root biomass but then decreased after a certain threshold root biomass	Jotisankasa & Sirirattanachat (2017)