Southern Piedmont

Franzluebbers AJ, Wright SF, Steudeman JA (2000) Soil aggregation and glomalin under pastures in the Southern Piedmont USA. Soil Sci Soc Am J 64 1018-1026... 

In the Southern Piedmont area of the United States, where the annual rainfall averages about SO inches, it has been estimated that about 11 inches of this is lost as runoff. Fortunately, a considerable portion of this loss occurs during the season when crop growth, if any, is at a minimum, and when the soil is already at field capacity. Under these conditions, if runoff could be prevented, most of the water so captured would merely percolate through the soil to the groundwater. 

Wilkinson, Carol A., Virginia Tech Southern Piedmont,... 

Fig. 77.1 A severely eroded field typical of large areas on the Southern Piedmont and other tueas of the eastern US in the 19th and eariy 20th centuries. (Source Trimble, 1974, 2(X)8)...

The history of soil erosion in two regions of the eastern US has been well documented. These regions are the Driftless Area (also known as the Upper Mississippi River Hill Country or Paleozoic Plateau) and the Southern Piedmont (see inset map on Pig. 77.4). 

Fig. 77.6 Former cropland, now reverted to forest, Southern Piedmont. The forested land is either too eroded for cultivation or is simply economically marginal to better cropland elsewhere in the US. Such reverted land is common and even dominant in many areas of the eastern US. (Source Trimble, 1974, 2008)...

Hall, A. R. ( 9A8) Soil Erosion and Agriculture on the Southern Piedmont A History. Unpubhshed PhD dissertation, Duke University. 

Hendrickson, B. H., Barnett, A. P., Carrker, J. R., Adams, W. E. (1963). Runoff and Erosion control studies on Cecil soils of the Southern Piedmont. USDA Technical Bulletin 1281. Johnson, H. B. (1976). Order upon the land. New York Oxford University Press. 

State of the Carbon Cycle Report (SOCCR). (2007). North American carbon budget and implications for the global carbon cycle. Chapter 11, North American Forests. Retrieved May 2008, from www.climatescience.gov/Library7sap/sap/2-2/finalreport/default.htm Trimble, S. W. (1974, 2008). Man-induced soil erosion on the Southern Piedmont. Ankeny, lA Soil and Water Conservation Society... 

Trimble, S. W, Weiiich, F. H., Hoag, B. (1987). Reforestation and the reduction of water yield on the Southern Piedmont. Water Resources Research, 23, 425-437. 

Hartsell, B. E., V. P. Aneja, and W. A. Lonneman, Relationships between Peroxyacetyl Nitrate, 03, and NOv at the Rural Southern Oxidants Study Site in Central Piedmont, North Carolina, Site SONIA, J. Geophys. Res., 99, 21033-21041 (1994). 

Tarragon oil (estragon oil) is produced by steam distillation of leaves, stems, and flowers of Artemisia dracunculus L. (Asteraceae). It is a pale yellow to amber liquid with a characteristic, spicy, delicate estragon odor reminiscent of liquorice and sweet basil. The following specifications refer to tarragon oil obtained from plants cultivated in southern France and in Piedmont (Italy). 

Figure 17a. Relationship between median wet deposition ofN (N03 + NH4+) and median surface-water N (N03 + NH4+) concentrations for physiograph-ical districts within the National Stream Survey that have minimal agricultural activity. [Subregions are Poconos-C at skills (ID), Southern Blue Ridge Province (2As), Valley and Ridge Province (2Bn), Northern Appalachians (2Cn), Ozarks—Ouachitas (2D), Southern Appalachians (2X), Piedmont (3A), mid-Atlantic Coastal Plain (3B), and Florida (3C)]. (Panel a is reproduced with permission from reference 96. Copyright 1991 American Geophysical Union.)...

USDA (1989) Final environment impact statement, vegetation management in the Piedmont and Coastal Plain. Southern Region Management Bulletin R8-MB-23. U.S. Dept, of Agriculture, Forest Service, Atlanta, Georgia. 

White, K. (1993) Image processing of Thematic Mapper data for discriminating piedmont surficial materials in the Tunisian Southern Atlas. International Journal of Remote Sensing 14, 961-977. 

There are countless examples in the literature of oedometer test graphs from whieh pre-consolidation or yield pressures have been determined that are completely absent when the data are re-plotted on linear scales. Examples are given in Figures 4 and 5. Figure 4 shows an example from a residual soil found in the southern part of the USA, known as Piedmont soil. Values of pre-eonsolidation pressure and over-consolidation ratios (OCRs) determined from the log plot are shown in the figure. The data have been re-plotted using a linear seale for pressure these linear plots show no evidenee of yield or pre-eonsolidation pressures. 

Another group of species demonstrated a disjunct distribution pattern involving areas of caatinga forest in central-southern Bahia as well as areas ranging from northern Parafba, southern Ceara and north-eastern Piaul. Habitat has been poorly recorded on material coming from these last two states, but some of these species seem to occur in the piedmont of residual landforms. Some examples of this type of distribution are seen with Hymenaea martiana, Calliandra spinosa Ducke and Chloroleucon foliolosum. 

---