Characteristics of Wetlands Ecosystems of Southeastern Bottomland Hardwood Forests

Patrick, W. H.; Dissmeyer, George E.; Hook, Donal D.; Lambou, Victor W.; Leitman, Helen M.; Wharton, Charles H.

doi:10.1016/b978-0-444-42020-6.50020-2

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Their greatest single expanse was in the 21 million acre floodplain of the lower Mississippi River Valley from southern illinois to coastal marshes along the Gulf of Mexico, but the community also occurs along rivers of the piedmont and southern coastal plain from Vrrginia to east Texas (Patrick et al 1981). The biotic and physical features of this system are determined by hydrology and sedimentation (Bedinger 1981).…”

Section: Description Of the Systemmentioning

confidence: 99%

Status and management of neotropical migratory birds

Finch¹,

Stangel²

1993

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This proceedings is the product of a National Training Workshop held at the Estes Park Center, Estes Park, Colorado, 21-25 September, 1992. Invited papers discuss all aspects of management, monitoring, and conservation of neotropical migratory birds on the breeding grounds. The proceedings is divided into seven sections that range from philosophical discussions to methods and solutions for managing migratory birds in concert with other wildlife.

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Section: Description Of the Systemmentioning

confidence: 99%

Status and management of neotropical migratory birds

Finch¹,

Stangel²

1993

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Effects of river regulation on flooding of a riparian red gum forest on the River Murray, Australia

Bren

1988

Regul. Rivers: Res. Mgmt.

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Forests of river red gum (Eucalyptus carnaldulensis Dehnh.) occur along the River Murray in Australia. These forests are important for biota, recreation, grazing, and wood products. They occur in a sub-humid to semi-arid environment and require flooding for adequate growth and regeneration. The largest continuous area is the Barmah (Victoria) and Millewa (New South Wales) forest near Echuca (Vic.). Information from maps showing the extent of inundation of Barmah Forest for particular floods was related t o flow data upstream of the forest, and maps showing the distribution of vegetation and forest site quality. Vegetation associations were shown to occur in characteristic flood frequency ranges, with red gum being the dominant species on all but the highest and lowest flood frequency sites. In general, higher red gum site quality was associated with higher frequency of flooding. The extent of flooding depended on the magnitude of peak flows in the river. Regulation of the river since the first filling of Hume Dam in 1934 has caused a reduction in the frequency of flows associated with partial flooding and an increase in the occurrence of small summer floods. Areas with a high flood frequency were most affected. It is possible that the forest may change to types associated with reduced duration of inundation in the long-term unless ameliorative action is taken.

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Gas composition and respiration of water oak (Quercus nigra L.) and green ash (Fraxinus pennsylvanica Marsh.) roots after prolonged flooding

Good

Patrick

1987

Plant Soil

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We compared the effects of 9.5 months of a continuous flooding treatment with a drained control treatment on one year-old seedlings of green ash (Fraxinus pennsylvanica Marsh.) and water oak (Quercus nigra L.), two tree species common to the bottomland-hardwood forests of eastern North America. The internal root gas composition of the more flood tolerant species, green ash, maintained higher oxygen and lower carbon dioxide concentrations under the flooding treatment than water oak. This apparently resulted in differences in rhizosphere oxidation. The amounts of Fe and Mn and the Fe/Mn ratio of the root coating extracted from trees in reduced soil conditions were much higher for the green ash than the water oak. It is argued that this reflects differences in the ability of these two species to maintain rhizosphere oxidation under prolonged periods of flooding and to prevent the accumulation of reduced potentially phytotoxic compounds. Alcohol dehydrogenase activity increased in the green ash and decreased in the water oak in the flooded treatment. This indicated that the better adapted species was able to rely upon increased anaerobic respiration in order to compensate for the decreased root oxygen supply, but the water oak was unable to maintain previous levels of respiration, probably as the result of sulfide toxicity.

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Characteristics of Wetlands Ecosystems of Southeastern Bottomland Hardwood Forests

Cited by 3 publications

References 3 publications

Status and management of neotropical migratory birds

Status and management of neotropical migratory birds

Effects of river regulation on flooding of a riparian red gum forest on the River Murray, Australia

Gas composition and respiration of water oak (Quercus nigra L.) and green ash (Fraxinus pennsylvanica Marsh.) roots after prolonged flooding

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