Journal of Environmental Quality

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Biochar and the Nitrogen Cycle: Introduction
Journal of Environmental Quality - Tập 39 Số 4 - Trang 1218-1223 - 2010
Timothy J. Clough, Leo M. Condron
Nitrogen (N) is an essential nutrient, and research to date shows that biochar potentially has the ability to manipulate the rates of N cycling in soil systems by influencing nitrification rates and adsorption of ammonia and increasing NH4+ storage by enhancing cation exchange capacity in soils. Its influence on these processes may have further imp...... hiện toàn bộ
Nitrogen and Carbon Mineralization Rates of Composted Manures Incubated in Soil
Journal of Environmental Quality - Tập 23 Số 6 - Trang 1184-1189 - 1994
A. Hadas, Rita Portnoy
AbstractRates of decomposition and inorganic N release from composted manures should be known and predictable on the basis of their composition for their proper use as a source of available N. Four composted cattle manures were analyzed for their inorganic N, soluble organic C and N, and total N and organic matter contents. The composts were incubated in soil for 3...... hiện toàn bộ
Effects of Near‐Surface Hydraulic Gradients on Nitrate and Phosphorus Losses in Surface Runoff
Journal of Environmental Quality - Tập 33 Số 6 - Trang 2174-2182 - 2004
Fenli Zheng, Chi‐hua Huang, L. D. Norton
ABSTRACTPhosphorous (P) and nitrogen (N) in runoff from agricultural fields are key components of nonpoint‐source pollution and can accelerate eutrophication of surface waters. A laboratory study was designed to evaluate effects of near‐surface hydraulic gradients on P and N losses in surface runoff from soil pans at 5% slope under simulated rainfall. Experimental ...... hiện toàn bộ
Seasonal Methane and Nitrous Oxide Emissions of Several Rice Cultivars in Direct-Seeded Systems
Journal of Environmental Quality - Tập 44 Số 1 - Trang 103-114 - 2015
Maegen Simmonds, Merle M. Anders, M. Arlene A. Adviento-Borbe, Chris van Kessel, Anna M. McClung, Bruce A. Linquist
Phosphorus Mitigation to Control River Eutrophication: Murky Waters, Inconvenient Truths, and “Postnormal” Science
Journal of Environmental Quality - Tập 42 Số 2 - Trang 295-304 - 2013
Helen P. Jarvie, Andrew N. Sharpley, P. J. A. Withers, J. Thad Scott, Brian E. Haggard, Colin Neal
Physical and Chemical Properties of Feedlot Pen Surfaces Located on Moderately Coarse– and Moderately Fine–Textured Soils in Southern Alberta
Journal of Environmental Quality - Tập 37 Số 4 - Trang 1589-1598 - 2008
J.J. Miller, T. Curtis, Francis J. Larney, Tim A. McAllister, Barry M. Olson
AbstractSouthern Alberta has the highest density of feedlot cattle in Canada, and there is a concern that leaching of water and contaminants may be greater for feedlots located on coarser‐textured than finer‐textured soils. Our objective was to determine if infiltration and leaching were greater for a 4‐yr‐old feedlot located on a moderately coarse–textured (MC) so...... hiện toàn bộ
Evaluation of Long-Term (1960-2010) Groundwater Fluoride Contamination in Texas
Journal of Environmental Quality - Tập 43 Số 4 - Trang 1404-1416 - 2014
Sriroop Chaudhuri, Srinivasulu Ale
Predicting Land Use Impacts on Regional Scale Groundwater Recharge and Discharge
Journal of Environmental Quality - Tập 28 Số 2 - Trang 446-460 - 1999
R. B. Salama, Tom Hatton, Warrick Dawes
AbstractThe paper presents the development and evaluation of methods that estimate recharge and discharge, water flow, and salt fluxes in rivers. The methods in combination provide an inferential framework to predict dryland salinity and the selection of the appropriate management scenarios. Hydrogeomorphic Analysis of Regional Spatial Data (HARSD) was used for del...... hiện toàn bộ
Cadmium, Lead, Zinc, Copper, and Nickel in Agricultural Soils of the United States of America
Journal of Environmental Quality - Tập 22 Số 2 - Trang 335-348 - 1993
G. G. S. Holmgren, Milton W. Meyer, Rufus L. Chaney, R. B. Daniels
AbstractThree thousand forty‐five surface soil samples from 307 different soil series were analyzed for Pb, Cd, Zn, Cu, Ni, cation exchange capacity (CEC), organic C, and pH in the course of a study of trace element uptake by major agricultural crops. The soil data from this study are summarized here statistically and in map form to show their interactions and gene...... hiện toàn bộ
Seasonal Variation in Methane Emission from Stored Slurry and Solid Manures
Journal of Environmental Quality - Tập 23 Số 3 - Trang 585-592 - 1994
Steen Husted
AbstractMethane (CH4) is an important greenhouse gas and recent inventories have suggested that livestock manure makes a significant contribution to global CH4 emissions. The emission of CH4 from stored pig slurry, cattle slurry, pig solid manure, and cattle solid manure was followed during a 1‐yr perio...... hiện toàn bộ
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