Complementary N Uptake Strategies between Tree Species in Tropical Rainforest

Table 1

Soil characteristics in 6 one-ha plots.

		pH	%N	%C	C : N
Volcanic-plutonic domain
CP1		4.89 (0.19)	0.79 (0.06)	12.55 (1.14)	15.90
CP6		5.00 (0.08)	0.73 (0.05)	11.52 (0.90)	15.70
CP7		5.13 (0.17)	0.94 (0.07)	16.46 (1.60)	17.42
Mean	32	5.00 (0.08)	0.83	13.58	16.44 (0.94)
Schist domain
CP2		4.98 (0.12)	0.49 (0.07)	7.89 (0.26)	15.93
CP3		5.02 (0.11)	0.46 (0.02)	7.71 (0.41)	16.86
CP4		5.47 (0.37)	0.59 (0.06)	10.17 (1.04)	17.24
Mean	32	5.13 (0.12)	0.51	8. 61	16.72 (0.67)

Soil characteristics (pH, C : N, N, and C concentration) in 6 one-ha plots (CP2, CP3, and CP4 and CP1, CP6, and CP7) of rainforest developed on two geomorphologic domains (schist domain and volcanic-plutonic domain) in French Guiana. ^*Differences are significant at (ANOVA of Kruskal-Wallis with geomorphological domain as main factor).