National Forests in Florida Final Report
Black Willow Large River Floodplain Forest
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- Bald-cypress - River Birch / Titi - Sebastianbush Forest
Black Willow Large River Floodplain ForestElement Identifiers NVCS association: Salix nigra Large River Floodplain Forest Database Code: CEGL007410 Formation: Temporarily flooded cold-deciduous forest Alliance: SALIX NIGRA TEMPORARILY FLOODED FOREST ALLIANCE (I.B.2.N.d.22) Element Concept Summary: This community is dominated or codominated by Salix nigra. Often, Salix nigra is the sole dominant with few other species present. It occurs on recently deposited ground in the Mississippi River Alluvial Plain and other large river floodplains. This association also includes some "sandbar forest" examples with Platanus occidentalis and Populus deltoides sharing dominance with Salix nigra. Environment: This riverine willow community occurs on recently deposited ground in large river floodplains. This includes "sandbar forests dominated by Salix nigra, with Platanus occidentalis and Populus deltoides" in the Mississippi River Alluvial Plain (formerly included in CEGL007908). Heineke (1987) mentions "riverfront areas and frontlands of islands which are actively accreting" with Salix nigra and Populus deltoides. Landward stands may be pure Salix nigra. In addition, he mentions "older, higher sites with more coarse-grained sediments" which are dominated by the mixture of Salix nigra and Populus deltoides. Vegetation: Salix nigra may be the sole dominant in stands of this type, with few other species present. This association also includes some examples with Platanus occidentalis and Populus deltoides. Heineke (1987) mentions "riverfront areas and frontlands of islands which are actively accreting" with Salix nigra and Populus deltoides. Landward stands may be pure Salix nigra. In addition, he mentions "older, higher sites with more coarse-grained sediments" which are dominated by the mixture of Salix nigra and Populus deltoides. Dynamics: See Summary Similar Associations: Salix nigra Forest (CEGL002103)--apparently similar (but smaller rivers), placed in temporarily flooded. Synonymy: No information Comments: Apparently originally conceived of as a community of riverine point-bar succession, this concept more properly placed in Temporarily Flooded [e.g., A.297, to which CEGL007410 is now moved 2001-06-24]. Heineke (1987) mentions "riverfront areas and frontlands of islands which are actively accreting" with Salix nigra and Populus deltoides. Landward stands may be pure Salix nigra. In addition, he mentions "older, higher sites with more coarse-grained sediments" which are dominated by the mixture of Salix nigra and Populus deltoides. Is it useful or possible to distinguish the pure Salix from the mix? This is often an early-successional community, but its regeneration and survival depends on natural flooding and hydrologic regimes being maintained. Conservation Ranking & Rare Species GRank: G3G5 (01-02-14): This is often an early-successional community, but its regeneration and survival depend on natural flooding and hydrologic regimes being maintained. High-ranked species: No information Element Distribution Range: This community is known from the Mississippi River and similar large river floodplains of Arkansas, Tennessee, Kentucky, Mississippi, Louisiana and possibly Texas(?). States: AR KY LA MS TN TX? Crosswalk to State Classifications: KY: Riparian Forest, in part (KY 1991) TNC Ecoregions: 41:?, 42:C, 43:C, 53:P USFS Ecoregions: 231B:CC, 232:C, 234A:CC Federal Lands: USFS (Angelina?, Apalachicola?, Croatan?, Davy Crockett?, Delta, De Soto, Francis Marion?, Holly Springs, Kisatchie, Ocala?, Sabine?, Sam Houston?, St. Francis, Tombigbee); USFWS (Chickasaw) Element Sources References: Evans 1991, Heineke 1987 Riverfront and Levee Forests and Shrublands Bald-cypress - River Birch / Titi - Sebastianbush ForestElement Identifiers NVCS association: Taxodium distichum - Betula nigra / Cyrilla racemiflora - Sebastiania fruticosa Forest Database Code: CEGL004505 Formation: Temporarily flooded cold-deciduous forest Alliance: BETULA NIGRA - (PLATANUS OCCIDENTALIS) TEMPORARILY FLOODED FOREST ALLIANCE (I.B.2.N.d.5) Element Concept Summary: This temporarily flooded forest occurs on temporarily flooded natural levees along blackwater rivers in northern Florida and perhaps elsewhere. The canopy is dominated by a mixture of Taxodium distichum and Betula nigra. The sparse subcanopy has species including Acer rubrum, Fraxinus caroliniana, and Cephalanthus occidentalis. The shrub layer is fairly well-developed, with Sebastiania fruticosa the most commonly occurring species, and also with Amorpha fruticosa, Hypericum prolificum, Vaccinium elliottii, and Cyrilla racemiflora. Scattered herbs include Rhynchospora colorata and Osmunda regalis var. spectabilis. Environment: See Summary Vegetation: See Summary Dynamics: See Summary Similar Associations: No information Synonymy: No information Comments: Occurrences are at O'Leno State Park, Florida. Conservation Ranking & Rare Species GRank: G3? (01-01-31): The extent and conservation status of this blackwater floodplain forest is poorly understood. It appears to be limited to the East Gulf Coastal Plain of the southeastern United States, and to have limited extent along blackwater streams and small rivers. Few occurrences are protected, and nearly all have been altered by timber removal. High-ranked species: No information Element Distribution Range: States: AL? FL GA? Crosswalk to State Classifications: FL: Bottomland Forest, in part (FL 1992) TNC Ecoregions: 53:C, 55:C, 56:P USFS Ecoregions: 232Bf:CCC, 232Bj:CC? Federal Lands: USFS (Apalachicola?, Conecuh?) Element Sources References: FNAI 1992a Riverine Aquatic Vegetation Directory: library library -> Strategic Plan South Sudan Country Office Context library -> The World Order of Bahá’u’lláh Selected Letters library -> Ieee/iee electronic Library (iel) library -> [0] B. Hardware [2] library -> [1] B. Hardware [1] library -> Florida public service commission library -> 1 1 before the florida public service commission 2 docket no. 070650-ei 3 In the Matter of: 4 petition to determine need for turkey point nuclear units 6 and 7 electrical 5 power plant, by florida power & light company library -> Archived Online Exhibit Download 3.16 Mb. Share with your friends:
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