Nodulation potential of soils from red alder stands covering a wide age range

Red alder (Alnus rubra Bong.) stands in the Pacific Northwest are the common first stage in succession following disturbance. These stands are highly productive and contribute a large amount of N to the soils as a result of their N2-fixing symbiosis with Frankia. As these alder stands age, the soils not only increase in total N, but concentrations of NO− 3… CONTINUE READING