Exclosures restored the density and root colonization of arbuscular mycorrhizal fungi in Tigray, Northern Ethiopia

Ecological Processes

Table 4 AMF spore density and spore genera in four age classes of exclosures (100 g⁻¹ of dry soil)

Age (year)	Gigaspora	Scutellospora	Glomus	Sclerocystis	Acaulospora	Entrophospora	Sum
< 10	6.1 ± 10.6d	2.9 ± 6.3c	326.2 ± 91.7d	0.000 ± 0.01a	226.6 ± 64.2d	0.000 ± 2.5c	562.0 ± 169.3d
10–20	39.7 ± 8.4c	13.3 ± 5.0c	1135.9 ± 72.6c	0.000 ± 0.01a	603.4 ± 50.8c	2.5 ± 2.0c	1794.9 ± 134.1c
20–30	162.7 ± 8.5b	75.6 ± 5.1b	2002.2 ± 74.1b	0.000 ± 0.01a	1259.3 ± 51.8b	13.6 ± 2.0b	3513.6 ± 136.7b
> 30	300.8 ± 7.9a	165.2 ± 4.7a	2903.5 ± 68.6a	0.030 ± 0.01a	1976.0 ± 48.0a	39.9 ± 1.9a	5385.6 ± 126.6a

Means followed by the same letter in the same column are not significantly different at P < 0.05 levels, mean ± SEM