Responses of water use in Moso bamboo (Phyllostachys heterocycla) culms of different developmental stages to manipulative drought

Forest Ecosystems

Table 1 Relative importance metrics and confidence intervals

Developmental stages	Predictor	Relative importance (%)	95% CI
Developmental stages	Predictor	Relative importance (%)	Lower	Upper
Old	PAR	50.26	48.59	51.92
	VPD	39.67	38.06	41.17
	Precip.	5.77	4.19	7.45
	WS	3.04	2.14	4.15
	SWC	1.26	0.87	1.88
Mature	PAR	54.98	53.51	56.39
	VPD	35.02	33.7	36.25
	Precip.	6.79	5.42	8.28
	WS	2.6	1.91	3.39
	SWC	0.62	0.41	0.96
Young	PAR	53.37	51.67	54.87
	VPD	36.88	35.49	38.36
	Precip.	4.83	3.49	6.39
	WS	2.73	2.02	3.63
	SWC	2.19	1.46	3.15

Methods are LMG (it decomposed r² to predictors into non-negative contributions that add up to overall model r²). Data were collected from three developmental stages of culms (N_young = 36, N_mature = 24, N_old = 24). Predictors are vapor pressure deficit (VPD), photosynthetic active radiation (PAR), wind speed (WS), soil water content (SWC), and precipitation (Precip.)