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dc.contributor.authorJohnson, Hyrun B.
dc.contributor.authorVasek, Frank C.
dc.contributor.authorYonkers, Terry
dc.date.accessioned2020-09-03T11:23:34Z
dc.date.available2020-09-03T11:23:34Z
dc.identifier.urihttps://scholar.oxy.edu/handle/20.500.12711/10324
dc.description.abstractThe response of summer and winter annuals to early summer irrigation and/or natural precipitation was determined for a rocky slope and a sandy bajada near East Ord Mountain in the Mojave Desert, California. Irrigation stimulated the germination of summer annuals on the rocky slope but not on the bajada, where a thundershower later in the summer caused a profusion of annuals. The following season, winter annuals showed markedly reduced densities on both irrigation plots and on the area receiving summer rain. These surprising results suggest that summer precipitation may have a much greater influence on vegetation response than had been previously supposed. Annuals comprised over 80% of the plant species on the two sites. Native winter annuals appear as components of highly integrated stable communities. The spatial heterogeneity of annual communities is greater than for perennial communities.
dc.subjectirrigation
dc.subjectMojave
dc.subjectannuals
dc.subjectprecipitation
dc.subjectspatial heterogeneity
dc.subjectperennial
dc.titleResidual Effects of Summer Irrigation on Mojave Desert Annuals
dc.title.alternativeResidual Effects of Summer Irrigation
dc.typearticle
dc.abstract.formatonep
dc.source.beginpage95
dc.source.issuescas/vol77/iss3
dc.source.issue3
dc.identifier.legacyhttps://scholar.oxy.edu/scas/vol77/iss3/3
dc.source.endpage108
dc.source.peer_reviewedTRUE
dc.source.statuspublished
dc.source.volume77
dc.source.journaltitleScas: Bulletin of the Southern California Academy of Sciences


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