Research Article

Spatial Variability of the Physicochemical Properties of Soils from Seasonally Flooded Forest Fragments on a Tropical Plain

Table 2

Chemical attributes of the Ipucas soils, within the localities and depths evaluated.

AttributesDepth (m)LocalityCV 1 (%)CV 2 (%)
CenterEdge

MO (g/dm3)0–0.2092.06 Aa92.13 Aa32.4517.55
0.20–0.4022.00 Ba18.33 Ba

C orgânico0–0.2053.39 Aa53.45 Aa33.5918.77
0.20–0.4012.75 Ba10.4 Ba

pH (CaCl2)0–0.203.92 Bb4.06 Ba3.411.82
0.20–0.404.23 Aa4.22 Aa

K (mmolc/dm3)0–0.201.32 Aa1.45 Aa28.5418.74
0.20–0.400.41 Ba0.49 Ba

P (mg/dm3)0–0.207.00 Aa5.00 Ab12.7314.51
0.20–0.403.07 Ba2.20 Bb

Ca (mmolc/dm3)0–0.202.73 Aa2.80 Aa22.4019.23
0.20–0.401.53 Ba1.67 Ba

SB (mmolc/dm3)0–0.205.78 Aa6.05 Aa12.0415.91
0.20–0.403.01 Ba3.28 Ba

CTC (mmolc/dm3)0–0.20111.59 Aa93.78 Ab26.0113.60
0.20–0.4053.01 Ba42.69 Ba

Mg (mmolc/dm3)0–0.201.73 Aa1.80 Aa14.8518.22
0.20–0.401.07 Ba1.13 Ba

Zn (mg/dm3)0–0.200.25 Aa0.25 Aa24.2022.87
0.20–0.400.15 Ba0.17 Ba

Fe (mg/dm3)0–0.2024.8 Aa12.2 Ab32.2232.29
0.20–0.405.8 Ba5.4 Ba

Mn (mg/dm3)0–0.201.29 Aa1.4 Aa24.0719.50
0.20–0.401.36 Aa0.84 Bb

Al (mmolc/dm3)0–0.2017.60 Aa11.40 Ab40.9618.40
0.20–0.4012.67 Ba8.27 Ab

V%0–0.205.33 Aa6.80 Aa39.5530.70
0.20–0.409.07 Aa11.00 Aa

m%0–0.2073.19 Aa63.32 Aa14.9410.97
0.20–0.4070.00 Aa66.39 Aa

Uppercase letters represent the significant difference in depth (0–0.20 m and 0.20–0.40 m), whereas the lowercase letters represent the significant difference in location (center and border). Means followed by the same letter did not differ statistically by Tukey’s test (). The coefficient of variation (CV) 1 corresponds to the variation within the localities, and the coefficient of variation (CV) 2 shows the variation within the depths.