Changes in Land Use System and Environmental Factors Affect Arbuscular Mycorrhizal Fungal Density and Diversity, and Enzyme Activities in Rhizospheric Soils of Acacia senegal (L.) Willd.

Table 3

Enzyme activities of soils from Dahra and Goudiry sampled during the dry season.

Sites	Soil origins	Enzyme activities
		FDA	Dehydrogenase	Acid phosphatase	Alkaline phosphatase
		(𝜇g FDA/h/g of soil)	(𝜇g INTF/h/g of soil)	(𝜇g pNPP/h/g of soil)	(𝜇g pNPP/h/g of soil)
	Plantation	0.344a	0.040a	67.937a	1.905ab
Dahra	Natural population	0.388a	0.131b	146.349b	2.381b
	Bulk soil	0.290a	0.032a	86.667a	1.111a
	Plantation	0.757a	0.319b	208.254a	13.860a
Goudiry	Natural population	1.710c	0.099a	416.190b	132.857b
	Bulk soil	1.179b	0.094a	427.619b	137.460b

For each site and in each column, values followed by the same letter are not significantly different according to the Student-Newman-Keuls test (𝑃<0.05).