Late Archaic-Late Woodland adaptive stability and change in the Steel Creek watershed, South Carolina: Final report of the L-Lake prehistoric investigations

Abstract Effects of cypress knee roughness on flow resistance and discharge estimates of the Turkey Creek watershed. In this study effects of cypress knees as vegetation resistance factor on Turkey Creek watershed discharge calculation were analyzed. The Turkey Creek watershed is a 3rd order stream system draining an approximate area of 5,240 ha. It is located at 33°08' N latitude and 79°47' W longitude, approximately 60 km north-west of City of Charleston in South Carolina (USA). Turkey Creek (WS 78) is typical of other watersheds in the south Atlantic coastal plain. In the case of Turkey Creek watershed, one of the main channels and riparian floodplain vegetation contains cypress trees. Cypress trees live in moist or swampy regions along the Atlantic coastal plain. The cypress trees are characterized by the unique root system called knees that appear just above the water line, up to 1.2 m above water surface. This study is conducted to examine the effects of roughness of cypress knee as related to its shape (diameter and height) on discharge estimates of the Turkey Creek watershed. Hydraulic characteristics of the cypress knees were determined by field inventory in selected cross-section along the main stream channel. The Pasche method was used to calculate the total Darcy–Weisbach friction factor in discharge capacity calculation of the study watershed. The results of this study show that the effect of vegetation shape in the Pasche approach is significant. If the variability of vegetation stem diameter is taken into consideration in the calculations, an increase by 10–32% in the values of friction coefficients occurs.

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Tectogenesis of the rocks surrounding the Winnsboro intrusive complex and reconnaissance and petrography of the Pageland pluton; South Carolina Geothermal Program Final Report

10.2172/6445255 ◽

1978 ◽

Author(s):

W.C. Bourland ◽

S.S. Farrar

Keyword(s):

South Carolina ◽

Final Report ◽

Intrusive Complex

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Cucurbita pepo from King Coulee, Southeastern Minnesota

American Antiquity ◽

10.2307/2694698 ◽

1998 ◽

Vol 63 (2) ◽

pp. 279-288 ◽

Cited By ~ 5

Author(s):

Bradley E. Perkl

Keyword(s):

Mass Spectrometry ◽

Accelerator Mass Spectrometry ◽

Cucurbita Pepo ◽

Late Woodland ◽

Late Archaic ◽

Upper Midwest ◽

Plant Use ◽

The People ◽

Habitation Site

Domesticated squash (Cucurbita pepo) was recovered from King Coulee, a multicomponent habitation site. Recent accelerator mass spectrometry (AMS) radiocarbon determinations on two seeds indicate that Cucurbita was used as early as 2530±60 B.P, during the Late Archaic. This marks the earliest occurrence of domesticated plant use in the upper Midwest. Another seed dated to the Late Woodland (1170±40 B.P.) is consistent with an inferred pattern of greater plant use throughout the area. The use of Cucurbita played an important role in the long transition from foraging to farming. These new data provide valuable insights into the economies of the people inhabiting the region.

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