HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (2) Citing Articles via Google Scholar Google Scholar Articles by Kongoli, C. E. Articles by Bland, W. L. Search for Related Content PubMed PubMed Citation Articles by Kongoli, C. E. Articles by Bland, W. L. GeoRef GeoRef Citation Agricola Articles by Kongoli, C. E. Articles by Bland, W. L. Related Collections Animal Waste Surface Water Quality Watershed and Landscape Processes Best Management Practices Phosphorus

TECHNICAL REPORTS
Landscape and Watershed Processes

Influence of Manure Application on Surface Energy and Snow Cover

Field Experiments

^a NOAA/NESDIS/ORA, Atmospheric Research and Applications Division, 5200 Auth Rd., Rm. 601/WWB, Camp Springs, MD 20746-4304
^b Dep. of Soil Science, 1525 Observatory Drive, Univ. of Wisconsin-Madison, Madison, WI 53706-1299

* Corresponding author (Cezar.Kongoli{at}noaa.gov)

Received for publication October 23, 2000. Application of manure to frozen and/or snow-covered soils of high-latitude, continental climate regions is associated with enhanced P losses to surface water bodies, but the practice is an essential part of most animal farming systems in these regions. Field experiments of the fates of winter-applied manure P are so difficult as to make them essentially impractical, so a mechanistic, modeling approach is required. Central to a mechanistic understanding of manure P snowmelt runoff is knowledge of snowpack disappearance (ablation) as affected by manure application. The objective of this study was to learn how solid manure applied to snow-covered fields modulates the surface energy balance and thereby snow cover ablation. Manure landspreading experiments were conducted in Arlington, WI during the winters of 1998 and 1999. Solid dairy manure was applied on top of snow at a rate of 70 Mg ha^-1 in 1998, and at 45 and 100 Mg ha^-1 in 1999. Results showed that the manure retarded melt, in proportion to the rate applied. The low-albedo manure increased absorption of shortwave radiation compared with snow, but this extra energy was lost in longwave radiation and turbulent flux of sensible and latent heat. These losses result in significant attenuation of melt peaks, retarding snowmelt. Lower snowmelt rates beneath manure may allow more infiltration of meltwater compared with bare snow. This infiltration and attenuated snowmelt runoff may partially mitigate the enhanced likelihood of P runoff from unincorporated winter-spread manure.

This article has been cited by other articles:

				C.E. Kongoli and W.L. Bland Influence of Manure Application on Surface Energy and Snow Cover: Model Development and Sensitivities J. Environ. Qual., July 1, 2002; 31(4): 1174 - 1183. [Abstract] [Full Text] [PDF]