New Publications of the Geological Survey

New Publications of the Geological Survey
Author :
Publisher :
Total Pages : 392
Release :
ISBN-10 : UCR:31210015770363
ISBN-13 :
Rating : 4/5 (63 Downloads)

Synopsis New Publications of the Geological Survey by : Geological Survey (U.S.)

Water-Quality Characteristics, Trends, and Nutrient and Sediment Loads of Streams in the Treyburn Development Area, North Carolina, 1988?2009

Water-Quality Characteristics, Trends, and Nutrient and Sediment Loads of Streams in the Treyburn Development Area, North Carolina, 1988?2009
Author :
Publisher : Createspace Independent Publishing Platform
Total Pages : 0
Release :
ISBN-10 : 1500275379
ISBN-13 : 9781500275372
Rating : 4/5 (79 Downloads)

Synopsis Water-Quality Characteristics, Trends, and Nutrient and Sediment Loads of Streams in the Treyburn Development Area, North Carolina, 1988?2009 by : Jason M. Fine

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.

Interpreting Soil Test Results

Interpreting Soil Test Results
Author :
Publisher : CSIRO PUBLISHING
Total Pages : 169
Release :
ISBN-10 : 9781486303984
ISBN-13 : 1486303986
Rating : 4/5 (84 Downloads)

Synopsis Interpreting Soil Test Results by : Pam Hazelton

Interpreting Soil Test Results is a practical reference enabling soil scientists, environmental scientists, environmental engineers, land holders and others involved in land management to better understand a range of soil test methods and interpret the results of these tests. It also contains a comprehensive description of the soil properties relevant to many environmental and natural land resource issues and investigations. This new edition has an additional chapter on soil organic carbon store estimation and an extension of the chapter on soil contamination. It also includes sampling guidelines for landscape design and a section on trace elements. The book updates and expands sections covering acid sulfate soil, procedures for sampling soils, levels of nutrients present in farm products, soil sodicity, salinity and rainfall erosivity. It includes updated interpretations for phosphorus in soils, soil pH and the cation exchange capacity of soils. Interpreting Soil Test Results is ideal reading for students of soil science and environmental science and environmental engineering; professional soil scientists, environmental scientists, engineers and consultants; and local government agencies and as a reference by solicitors and barristers for land and environment cases.