Table 3.

(S)MATR reduced major axisregression slopes and y-intercepts (α_RMA and log β_RMA, respectively) for log₁₀-tranformed data of forest-level above- and below-ground biomass (M_A and M_R, respectively) and stem and root biomass (M_S and M_R, respectively) (original units: tonnes dry mass/hectare). Data, grouped according to forest-types, taken from Luo (1996) and Feng et al. (1999)

	αRMA (95% CI)	Log βPMA (95% CI)	r2
1. Boreal/temperate Larix forest (n=53)
Log MA vs. log MR	0·949 (0·724, 1·17)	0·573 (0·238, 0·909)	0·289
Log MS vs. log MR	0·960 (0·731, 1·19)	0·536 (0·194, 0·878)	0·278
2. Boreal/temperate Pinus forest (n=173)
Log MA vs. log MR	1·11 (1·05, 1·18)	0·405 (0·332, 0·478)	0·852
Log MS vs. log MR	1·18 (1·11, 1·25)	0·269 (0·188, 0·349)	0·838
3. Boreal/alpine Picea–Abies forest (n=170)
Log MA vs. log MR	1·03 (0·938, 1·12)	0·587 (0·444, 0·730)	0·674
Log MS vs. log MR	1·10 (1·00, 1·20)	0·437 (0·277, 0·597)	0·644
4. Temperate mixed coniferous–broadleaf forest (n=8)
Log MA vs. log MR	0·766 (0·703, 0·829)	0·979 (0·832, 1·13)	0·953
Log MS vs. log MR	0·810 (0·743, 0·877)	0·876 (0·721, 1·03)	0·953
5. Temperate deciduous broadleaf forest (n=322)
Log MA vs. log MR	0·822 (0·766, 0·879)	0·658 (0·583, 0·734)	0·609
Log MS vs. log MR	0·865 (0·806, 0·923)	0·561 (0·483, 0·639)	0·618
6. Subtropical Pinus forest (n=212)
Log MA vs. log MR	1·08 (1·00, 1·15)	0·699 (0·604, 0·794)	0·720
Log MS vs. log MR	1·20 (1·08, 1·30)	0·404 (0·290, 0·519)	0·673
7. Subtropical Cunninghamia forest (n =150)
Log MA vs. log MR	1·12 (1·03, 1·20)	0·559 (0·455, 0·664)	0·687
Log MS vs. log MR	1·30 (1·21, 1·40)	0·127 (0·0013, 0·253)	0·809
8. Subtropical Cupressus and Sabina forest (n=28)
Log MA vs. log MR	1·09 (0·780 1·40)	0·501 (0·084, 0·917)	0·500
Log MS vs. log MR	1·19 (0·850, 1·53)	0·305 (–0·152, 0·762)	0·495
9. Subtropical coniferous (Pinus+Cunninghamia+Cupressus+Sabina) forest (n=390)
Log MA vs. log MR	1·11 (1·05, 1·17)	0·515 (0·438, 0·592)	0·704
Log MS vs. log MR	1·20 (1·13, 1·26)	0·351 (0·2641, 0·437)	0·680
10. Subtropical evergreen/deciduous broadleaf forest (n=366)
Log MA vs. log MR	1·06 (1·03, 1·06)	0·438 (0·410, 0·5466)	0·970
Log MS vs. log MR	1·05 (1·03, 1·08)	0·392 (0·364, 0·421)	0·970
11. Subtropical mixed coniferous–broadleaf forest (n=11)
Log MA vs. log MR	1·08 (0·652, 1·50)	0·426 (–0·108, 0·960)	0·726
Log MS vs. log MR	1·20 (0·699, 1·70)	0·213 (–0·414, 0·840)	0·695

M_A vs. M_R or M_S vs. M_R scaling exponents in bold type have 95% CIs that numerically include those reported at the level of individual plants (α_RMA=1·06 and 1.08, respectively; see Niklas, 2005).