uid=BNZ,o=lter,dc=ecoinformatics,dc=org all public read knb-lter-bnz.60.10 John Yarie Professor of Silviculture

Forest Soils Laboratory; Department of Forest Sciences; SNRAS; University of Alaska Fairbanks Fairbanks AK 99775-7200 United States

(907) 474-5650 (907) 474-6184 jayarie@alaska.edu Bonanza Creek LTER Data Manager

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 jpdowning@alaska.edu http://www.lter.uaf.edu 1991-08-15 Foliage: leaf tissue chemistry across the treatment and control plots in all successional stages of BCEF. foliage chemistry tree shrub Biogeochemistry

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http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=60 Site information unavailable -148.3790685 -148.1435205 64.7666796 64.6719571 1989-07-01 1991-07-01

Completed

Bonanza Creek LTER Data Manager

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 jpdowning@alaska.edu http://www.lter.uaf.edu Bonanza Creek LTER

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 Bonanza Creek LTER

design Experiment is repeated at each of the replicate sites representing the respective successional stages in upland and river floodplain locations. Treatments include: control, sucrose addition, sawdust addition, fertilizer and moisture stress. The moisture stress treatment is established at only the UP2 and FP3 sites, the turning point between deciduous and coniferous tree species domination. Experimental plots are 15 m by 15 m. At sampling time, an attempt was made to sample green foliage from at least 5 individuals of each species. In mature white spruce stands fewer than five individuals were present on the experimental plots in some cases.

Sucrose and sawdust were hand broadcast on each plot. The amount of each material was calculated to be sufficient to raise the C:N ratio of the forest floor in each vegetation type to approximately 50. Following the initial applications and in the fall of each succeeding year 6 cores of the forest floor are obtained to estimate the course of the C:N ratio in order to determine the necessity for reapplication of the respective treatments. Foliage was sampled from as close as possible to the mid-crown position in each case. A pole-pruner was used for shorter individuals in early successional stages and a shotgun was used for taller trees in later successional stages. Foliage samples were divided in to those for oven drying (65o C) and chemical element, lignin and cellulose analysis and those to be freeze dried for organic secondary plant chemical analysis.

geoReference 1989-07-01 1991-07-01

Yearly for forest floor C:N ratios. For green leaf tissue, samples were taken close to peak season from the principal shrub and tree species on each of the treated plots in 1989 (pre-treatment), and in 1990 and 1991. Litterfall collected each autumn and s

1_2058_shotgun_folige_chem_89-91.txt 1989 LTER "Shotgun" Foliage: leaf tissue chemistry 1_2058_shotgun_folige_chem_89-91.txt 1 \n \n column \t http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-bnz..&urlTail=/ascii/files/1_2058_shotgun_folige_chem_89-91.txt Year Year Year or sample integer yyyy Site Site Site of observation string Site of observation Trt Trt Treatment string Treatment Species Species Species observed string Species observed Samp# Samp# Sample number integer Sample number Tree# Tree# Tree Number integer Tree Number REP REP Replication ID string Replication ID %OM %OM Percent Organic Matter float percent real %N %N Percent Nitrogen float dimensionless real %P %P Percent P float percent real %K %K Percent K float percent real %Ca %Ca Percent Calcium float percent real %Mg %Mg Percent Mg float percent real %C %C Percent Carbon float percent real