Exploring the factors affecting carbon and nutrient concentrations in tree biomass components in natural forests, forest plantations and short rotation forestry

Forest Ecosystems

Table 6 Comparison of nutrient assimilation index (NAI), mean annual nutrient removal (MANR) and percent of available soil nutrients removed (PASNR) for five species-forest management combinations

Regime	N° Plots	MANR (kg∙ha⁻¹∙year⁻¹)					PASNR (%)					NAI (Mg∙kg⁻¹) of nutrient
Regime	N° Plots	N	P	K	Ca	Mg	N	P	K	Ca	Mg	N	P	K	Ca	Mg
PoplarSRF7	4	23.5	1	4.5	5	2.0	19	29	16	7	18	0.21	2.94	0.51	0.63	1.20
EucaSRF6	6	20.0	3	20	23	7.0	15	75	69	43	14	0.28	2.57	0.31	0.34	1.12
Eucapulp15	5	13.7	0.9	9.2	8	3.1	9	65	78	46	18	0.64	9.95	0.96	1.09	2.84
Oak-birch	15	7.0	0.7	4.2	9.3	1.3	6	238	79	239	67	0.35	3.60	0.60	0.27	1.80