Abstract:
:Soil properties of pioneer Pinus flexilis stands with similar topography and climate were investigated. Soils supporting this tree in association with Cercocarpus ledifolius were found to have higher percentages of total nitrogen than soils beneath similar stands lacking Cercocarpus.An excavated Cercocarpus ledifolius shrub in a Pinus flexilis stand in the San Bernardino Mountains of California was found to be nodulated and these nodules were found to be capable of fixing nitrogen. Other known nitrogen-fixing shrubs are frequent associates of Pinus flexilis in extreme sites.Implications of the phylogenetic relationship of some nitrogen-fixing species are briefly discussed, as well as their frequent occurrence in pioneer or extreme habitats.
journal_name
Oecologiajournal_title
Oecologiaauthors
Lepper MG,Fleschner Mdoi
10.1007/BF00345566subject
Has Abstractpub_date
1977-12-01 00:00:00pages
333-338issue
4eissn
0029-8549issn
1432-1939pii
10.1007/BF00345566journal_volume
27pub_type
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