Cypress Domes

Vernon, Robert O.

doi:10.1126/science.105.2717.97

Cited by 8 publications

(10 citation statements)

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“…The appearance of pond cypress in these heads illustrates this point rather well. Vernon (1949) believed that cypress heads are evidence of a general inland water rise. In addition to these, potassium and depth of maximum flooding add to interstand variation.…”

Section: Discussionmentioning

confidence: 99%

“…In this respect, Wright and Wright (1932) and Vernon (1949) offer more complete explanations. This, then, would ultimately result in a few large mature trees at the center and many small ones on the outside.…”

Section: Discussionmentioning

confidence: 99%

“…He mentions ponds ". This pattern has been the subject of several investigations (Harper, 1927;Kurz, 1933;and Vernon, 1949). Williams (1827) wrote of "pine barren swamps which are natural basins containing the waters of the surrounding country.…”

Section: Introductionmentioning

confidence: 98%

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Ecological Consideration of Cypress Heads in Northcentral Florida

Monk¹,

Brown²

1965

American Midland Naturalist

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Ecological Consideration of Cypress Heads in Northcentral Florida

Monk¹,

Brown²

1965

American Midland Naturalist

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“…Two types of cypress wetlands have been used to treat sewage effluent: cypress strands through which water flows slowly most of the year and cypress domes which are roughly circular depressions containing stagnant water. Cypress domes obtained their name because the tallest trees grow in the center of the depression with tree height gradually decreasing towards the edge; from a side view they appear to be dome-shaped (Vernon 1947).…”

Section: Introductionmentioning

confidence: 99%

Response of pondcypress growth rates to sewage effluent application

Browns

Peer

1989

Wetlands Ecol Manage

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Cores were collected from dominant pondcypress trees growing in a swamp that had received sewage effluent for 7 yr and a nearby control swamp to determine the combined effects of changes in nutrient supply and hydrologic regime on tree growth. The cores were used to measure two indices of tree growth: basal area increment (BAI) and relative basal area increment (RBAI, which accounts for differences in growth due to the size of the tree) between 1970-83 while one swamp remained untreated and the other received weekly additions of sewage effluent from 1974-81. Throughout the whole period, the mean BAI and RBAI of pondcypress trees in the untreated swamp remained unchanged, ranging between 5.55-6.38 cm 2 yr -1 and 1.09-1.27% yr-1, respectively. In contrast, trees in the treated swamp increased their BAI approximately two-fold from 7.40 cm 2 yr-1 prior to treatment to 14.83 cm 2 yr-1 after the onset of treatment and maintained this rate of growth in the 2 yr period after cessation of treatment. Relative basal area increment showed a similar response, but the proportional increase due to treatment was less (1.5-fold factor) than for BAI. The response of pondcypress trees to the sewage effluent differed depending upon whether the trees were located in the deep or shallow water zones. Trees in the deep zone of the treated swamp had lower BAIs and RBAIs than those in the shallow zone during the treatment period, whereas in pre-and post-treatment periods growth indices were equal in both zones. No significant differences in growth between deep and shallow zones were observed during all three time periods in the control swamp.

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“…Trees decrease in size toward the periphery. Vernon (1947) suggested that the large trees were oldest and that domes were explained by a gradual rise in water related to sea-level rise, which allowed cypress to spread progressively out from the center of the dome. According to Craighead (1971), the change in tree size probably reflects growth rate rather than age, and trees in deep nutrient-rich organic soil grew faster than those on the thin infertile soil.…”

Section: Cypress Forestsmentioning

confidence: 99%