Main Title |
Availability and Uptake of Inorganic Nitrogen in a Mixed Old-Growth Coniferous Forest. |
Author |
Turner, D. P. ;
Sollins, P. ;
Leuking, M. ;
Rudd, N. ;
|
CORP Author |
ManTech Environmental Technology, Inc., Corvallis, OR. ;Oregon State Univ., Corvallis. Dept. of Forest Science.;Corvallis Environmental Research Lab., OR. |
Publisher |
c1993 |
Year Published |
1993 |
Report Number |
EPA/600/J-93/259; |
Stock Number |
PB93-212652 |
Additional Subjects |
Growth ;
Nitrification ;
Forest trees ;
Ammonium compounds ;
Nitrogen inorganic compounds ;
Concentration(Composition) ;
Soil properties ;
Wood wastes ;
pH ;
Fir trees ;
Containers ;
Field tests ;
Seasonal variations ;
Absorption ;
Conifers ;
Monitoring ;
Oregon ;
Reprints ;
Pseudotsuga mengiesii ;
Douglas fir trees ;
Tsuga heterophylla ;
Western hemlock trees
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-212652 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
13p |
Abstract |
Old-growth forest stands of mixed species composition provide the opportunity to study species-specific influences on soil properties. The authors monitored rates of nitrogen mineralization, nitrification and an index of ammonium and nitrate uptake in a mixed old-growth stand of Douglas-fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla) and western redcedar (Thuja plicata) over a two-year period. Litter and mineral soil (0-10-cm depth) were sampled adjacent to ten large trees of each species. After initial characterization of litter and soil, buried bags were incubated in both layers for ca. 2-month intervals. Soil and litter pH was lowest near western hemlocks. Nitrification, nitrate concentrations, and percent uptake as nitrate differed among the tree species; rates were highest near western redcedars. For all species, percent nitrification and nitrate uptake rate were higher in soil than in litter. The results indicate species-specific effects on ammonium and nitrate production and uptake within this forest type. (Copyright (c) 1993 Kluwer Academic Publishers.) |
Supplementary Notes |
Pub. in Plant and Soil, v148 p163-174 1993. Prepared in cooperation with Oregon State Univ., Corvallis. Dept. of Forest Science. Sponsored by Corvallis Environmental Research Lab., OR. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Availability and Uptake of Inorganic Nitrogen in a Mixed Old-Growth Coniferous Forest. |
Category Codes |
48D; 48E |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
325227598 |
Origin |
NTIS |
Type |
CAT |