Land use effects on stream nutrients at Beaver Lake Watershed

Abstract

KEywords: land use, water quality, source water protection, and streambed material Giovannetti et al | http://dx.E4 Giovannetti et al | http://dx.. He has spent the past five years in the Great Lakes region as a consultant for both the public and private sector, providing services focused on water quality, water resource engineering, and environmental compliance. Giovannetti obtained a bachelor of science degree in biology from Southwestern University in Georgetown, Texas, and a master of science degree from the University of Arkansas Environmental Engineering Program, where he specialized in water quality engineering. Leslie B. Massey is a program associate, and Brian E. Haggard is director at the Arkansas Water Resources Center. Robert A. Morgan is an environmental manager for the Beaver Water District in northwestern Arkansas. footnotEs 1 pH Tester3, Oakton Instruments, West Caldwell, N.J. 2 Model 115A plus, Orion Beverly, Mass. 3 Model 85, YSI, Yellow Springs, Ohio 4 TOC-V CSH with a TNM-1, Shimadzu, Tokyo 5 Skalar San Plus,

Can We Manage Nonpoint‐Source Pollution Using Nutrient Concentrations during Seasonal Baseflow?

“…For a given site, nutrient concentrations were summarized by geometric mean concentration for each flow condition (i.e., baseflow and stormflow conditions). For ranges in sampled concentrations and discharge, see Giovannetti et al (2013), Massey et al (2013), and Haggard et al (2010). All statistical analysis was performed using JMP Pro (SAS Institute, 2014), with a significance level of 0.05.…”

“…For Giovannetti et al (2013), Massey et al (2013), and Haggard et al (2010), baseflow conditions were established by two criteria: no runoff-producing rain in the previous 48 h, and no significant change in the hydrograph from the previous day (±10%). Similarly, stormflow conditions were considered when a rainfall event produced a significant rise in the hydrograph (>10%).…”

“…In Giovannetti et al (2013), Massey et al (2013), and Haggard et al (2010), water samples were collected from the vertical centroid of flow, where the water was actively flowing and likely well mixed, using a horizontal a water sampler (Wildlife Supply Company, Yulee, FL), telescoping sample pole, or by hand. Quality assurance/quality control protocol, laboratory analysis methods, and method detection limits are all consistent with those described in McCarty et al (2016), as well as the aforementioned studies.…”

“…We know that nutrient concentrations in baseflow increase with anthropogenic influence within the catchment (Haggard et al, 2003(Haggard et al, , 2007Brion et al, 2010;Cox et al, 2013;Giovannetti et al, 2013). However, the landscape factors that likely are responsible for increased nutrients during baseflow also influence catchment hydrology.…”

Linking Soil Erosion to Instream Dissolved Phosphorus Cycling and Periphyton Growth

“…The findings demonstrate that the conceptual framework outlined in this article accurately describes the release of DRP following deposition of soil in a stream following a stormflow event and the subsequent release and uptake by periphyton. These data suggest that increased soil M3P content within the watershed has the potential to increase available P in the sediment and overlying water, which is further supported by the observation of increased water quality degradation with increased human development (agricultural and urban land use; Giovannetti et al ., ).…”