NDLI: Site preparation burning to improve southern Appalachian pine-hardwood stands: nitrogen responses in soil, soil water, and streams

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Site preparation burning to improve southern Appalachian pine-hardwood stands: nitrogen responses in soil, soil water, and streams

Content Provider	Semantic Scholar
Author	Knoepp, Jennifer D. Swank, Wayne T.
Copyright Year	1993
Abstract	Three paired watersheds treated with a fell and burn prescription were studied to determine the effects on soil, soil water, and stream water. Soil nitrification and mineralization were measured by in situ closed-core incubation. Soil water was collected with porous cup lysimeters placed at 30 and 60 cm depths, and water samples were collected from streams draining control and burned areas on one of the three sites. All data were collected for 6 months prior to and 12 months after treatment. Soil ammonium (NH4+) content increased significantly in all three sites after burning, but the magnitude differed greatly among sites. However, there was no change in soil nitrate (NO3−) content. In situ measurements of net mineralization showed increased rates with increasing burn severity. Net nitrification displayed no treatment response. Slight and nonsignificant increases in soil water NO3− concentration occurred after burning in two of the three sites. Stream water NO3− concentrations increased in the one stream...
Starting Page	2263
Ending Page	2270
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1139/x93-280
Volume Number	23
Alternate Webpage(s)	http://coweeta.uga.edu/publications/739.pdf
Alternate Webpage(s)	https://doi.org/10.1139/x93-280
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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