Propagation of Wetland Vegetation on a Riparian Overflow Area in Central Oklahoma

Abstract

Experimental plantings were established on a riparian overflow area on the Deep Fork River in Lincoln County, Oklahoma. Five plantings were used: common cattail (Typha latifolia), scarlet rose mallow (Hibiscus militaris), black willow (Salix nigra), buttonbush (Cephalanthus occidentalis), and a mixture of the four species. Species were established on the overflow area in three study plots of Latin square design. Plantings were monitored weekly to determine survival rates. Analysis of Variance procedures and Least Significant Difference tests were used to evaluate plant survival. Survival in all species decreased as the field season progressed. Survival rates declined abruptly between 3 July and ll July 1984 due to decreased soil moisture content attributed to increased competition among plant propagules and naturally established vegetation. At the conclusion of the study, survival of black willow ( 23.7%) was statistically greater than that of common cattail, scarlet rose mallow, buttonbush, or a mixture of the four species. Implications of natural and artificial establishment of vegetation are discussed as the apply to the Deep Fork River floodplain. Management implications and research alternatives for experimental planting studies on Deep Fork River overflow areas also are discussed.