Table 2.

Summary and description of variables investigated in this study.

Variable	Unit	Description	Variable group	Abbreviation
Specific leaf area	${{\text{m}}_{\mathrm{leaf}}}^2\text{k}{{\text{g}}_{\mathrm{leaf}}}^{-1}$	Leaf area per unit leaf dry mass	Leaf	SLA
Leaf dry matter content	$\text{m}{\text{g}}_{\mathrm{dw}\mathrm{leaf}}{{\text{g}}_{\mathrm{fw}\mathrm{leaf}}}^{-1}$	Leaf dry mass per water-saturated leaf fresh weight	Leaf	LDMC
Leaf nitrogen concentration	$\text{mg}\text{N}{{\text{g}}_{\mathrm{leaf}}}^{-1}$	Leaf nitrogen concentration	Leaf	LNC
Leaf carbon concentration	$\text{mg}\text{C}{{\text{g}}_{\mathrm{leaf}}}^{-1}$	Leaf carbon concentration	Leaf	LCC
Leaf greenness		Unitless measure of leaf chlorophyll concentration	Leaf	LeafG
Stomatal conductance	mmol m−2 s−1	Stomatal conductance per leaf area	Leaf	gs
Leaf mass fraction	${\text{g}}_{\mathrm{leaf}}{{\text{g}}_{\mathrm{shoot}}}^{-1}$	Leaf mass per aboveground shoot mass	Shoot	LMF
Shoot nitrogen concentration	$\text{mg}\text{N}{{\text{g}}_{\mathrm{shoot}}}^{-1}$	Shoot nitrogen concentration	Shoot	SNC
Shoot carbon concentration	$\text{mg}\text{C}{{\text{g}}_{\mathrm{shoot}}}^{-1}$	Shoot carbon concentration	Shoot	SCC
Plant height	cm	Stretched plant height	Shoot	Height
Leaf area ratio	mmleaf2 mgplant−1	Leaf area per total plant biomass	Allocation	LAR
Root:shoot ratio	groot g−1shoot	Root biomass per aboveground biomass	Allocation	RSR
Root nitrogen concentration	$\text{mg}\text{N}{{\text{g}}_{\mathrm{root}}}^{-1}$	Root nitrogen concentration	Root	RNC
Root carbon concentration	$\text{mg}\text{C}{{\text{g}}_{\mathrm{root}}}^{-1}$	Root carbon concentration	Root	RCC
Specific root length	${\text{m}}_{\mathrm{root}}{{\text{g}}_{\mathrm{root}}}^{-1}$	Root length per root mass	Root	SRL
Root length density	cmroot cmsoil−3	Root length per soil volume	Root	RLD
Root diameter	mm	Average root diameter	Root	RD
Total biomass	g	Total plant biomass	Performance	BM