| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
7819
|
Alnus glutinosa
|
Habitat Alteration
|
Observational
|
Field
|
Alnus glutinosa is associated with a number of nitrogen-fixing actinomycetes fungi that directly increase soil nitrogen concentrations.
|
Michigan and Wisconsin, USA
|
25055
|
|
7820
|
Alnus glutinosa
|
Habitat Alteration
|
Anecdotal
|
N/A
|
Alnus glutinosa leaves are also nitrogen-rich and have been shown to significantly increase nitrogen concentrations via leaf litter leaching.
|
|
25067
|
|
7821
|
Alnus glutinosa
|
Habitat Alteration
|
Anecdotal
|
N/A
|
Black alder (Alnus glutinosa) is a pioneer species capable of modifying the environment by colonizing exposed soils, fixing nitrogen, and producing copious amounts of litter.
|
|
25069
|
|
7822
|
Alnus glutinosa
|
Habitat Alteration
|
Experimental
|
Field
|
Results suggest that as atmospheric carbon dioxide concentration increases, nitrogen-fixing species, such as black alder (Alnus glutinosa), will be able to fix more atmospheric nitrogen. This will lead to an increase in nitrogen concentration (above current fixation rates) in leaves and, ultimately, in soils via leaf litter decomposition.
|
Michigan, USA
|
25082
|
|
7823
|
Alnus glutinosa
|
Habitat Alteration
|
Observational
|
Field
|
Areas planted with black alder (Alnus glutinosa) at a mine restoration site in Kentucky had twice as much leaf litter and higher concentrations of soluble salts than areas without black alder. This leaf litter also resulted in significantly more acidic spring soil.
|
Kentucky, USA
|
25068
|