Download Free Water Quality Characteristics Of Streams In The Treyburn Development Area Of Falls Lake Watershed North Carolina 1988 93 Book in PDF and EPUB Free Download. You can read online Water Quality Characteristics Of Streams In The Treyburn Development Area Of Falls Lake Watershed North Carolina 1988 93 and write the review.

Streamflow and water-quality data, including concentrations of nutrients, metals, and pesticides, were collected from October 1988 through September 2009 at six sites in the Treyburn development study area. A review of water-quality data for streams in and near a 5,400-acre planned, mixed-use development in the Falls Lake watershed in the upper Neuse River Basin of North Carolina indicated only small-scale changes in water quality since the previous assessment of data collected from 1988 to 1998. Loads and yields were estimated for sediment and nutrients, and temporal trends were assessed for specific conductance, pH, and concentrations of dissolved oxygen, suspended sediment, and nutrients. Water-quality conditions for the Little River tributary and Mountain Creek may reflect development within these basins. The nitrogen and phosphorus concentrations at the Treyburn sites are low compared to sites nationally. The herbicides atrazine, metolachlor, prometon, and simazine were detected frequently at Mountain Creek and Little River tributary but concentrations are low compared to sites nationally. Little River tributary had the lowest median suspended-sediment yield over the 1988-2009 study period, whereas Flat River tributary had the largest median yield. The yields estimated for suspended sediment and nutrients were low compared to yields estimated for other basins in the Southeastern United States. Recent increasing trends were detected in total nitrogen concentration and suspended-sediment concentrations for Mountain Creek, and an increasing trend was detected in specific conductance for Little River tributary. Decreasing trends were detected in dissolved nitrite plus nitrate nitrogen, total ammonia plus organic nitrogen, sediment, and specific conductance for Flat River tributary.
Self-taught photographer Hugh Mangum was born in 1877 in Durham, North Carolina, as its burgeoning tobacco economy put the frontier-like boomtown on the map. As an itinerant portraitist working primarily in North Carolina and Virginia during the rise of Jim Crow, Mangum welcomed into his temporary studios a clientele that was both racially and economically diverse. After his death in 1922, his glass plate negatives remained stored in his darkroom, a tobacco barn, for fifty years. Slated for demolition in the 1970s, the barn was saved at the last moment--and with it, this surprising and unparalleled document of life at the turn of the twentieth century, a turbulent time in the history of the American South. Hugh Mangum's multiple-image, glass plate negatives reveal the open-door policy of his studio to show us lives marked both by notable affluence and hard work, all imbued with a strong sense of individuality, self-creation, and often joy. Seen and experienced in the present, the portraits hint at unexpected relationships and histories and also confirm how historical photographs have the power to subvert familiar narratives. Mangum's photographs are not only images; they are objects that have survived a history of their own and exist within the larger political and cultural history of the American South, demonstrating the unpredictable alchemy that often characterizes the best art--its ability over time to evolve with and absorb life and meaning beyond the intentions or expectations of the artist.