Research Article

Floristic Composition, Structure, and Species Associations of Dry Miombo Woodland in Tanzania

Table 3

Pearson-correlation matrix for two topographic and eight edaphic variables associated with the classified plant communities in the Gangalamtumba VLFR ( ). Applied significance levels: *5%, **1%, and ***0.1%, +not significant.

ElevSlope %pH15Ca15K15N15Sand15Clay15CNrat30

Slope %0.19+
pH15−0.13+−0.33*
Ca150.02+−0.20+0.83***
K15−0.29+0.00+0.10+0.12+
N150.06+0.36*0.10+0.41**0.33*
Sand15−0.42**0.03+−0.53***−0.74***0.06+−0.46**
Clay150.31+−0.12+0.51**0.76***−0.01+0.47**−0.86***
CNrat300.36*0.10+−0.39*−0.51**−0.15+−0.19+0.40*−0.48**
BS−0.24+−0.17+0.84***0.91***0.15+0.37*−0.58***0.60***−0.51**

Elev: elevation (m); pH15: soil pH at 0–15 cm; Ca15: Ca2+ (cmol(+)/kg) at 0–15 cm; K15: K+ (cmol(+)/kg) at 0–15 cm; N15: % N concentration at 0–15 cm; Sand15: sand (%) at 0–15 cm; Clay15: clay (%) at 0–15 cm; CNrat30: C : N ratio at 15–30 cm depth; BS: % base saturation at 0–15 cm. -value was calculated as , where is the Pearson-correlation coefficient and is the total sample size.