Search Result
Data
The Long-term Ecological Research (LTER) Network is a collection of 25 National Science Foundation-funded sites committed to long-term, place-based investigation of the natural...
DB Code: SS005
Study date: August 01, 2013 to October 31, 2014
Data
The H.J. Andrews Experimental Forest (HJA) in the Oregon Cascades is one of 24 sites in the Long-Term Ecological Research (LTER) Network. It supports research on forests, streams...
DB Code: SS006
Study date: June 01, 2016 to October 31, 2016
Data
The objective of this study was to determine the source-distance patterns of coarse woody debris in selected streams flowing through natural conifer forests in the Cascade and...
DB Code: TD010
Study date: September 08, 1981 to September 21, 1981
Data
These data provide an inventory of the mass and nutrients stored within various forest types by coarse woody debris (CWD). CWD inventoried includes standing dead trees (>10 cm...
DB Code: TD012
Study date: July 01, 1977 to August 31, 2005
Data
These data are collected from six sites within the H. J. Experimental Forest and are part of a 200-year experiment on the decomposition of logs in a terrestrial environment. The...
DB Code: TD014
Study date: March 26, 1985 to August 24, 2016
Data
The data collected from this study describe the decomposition of small logs (20-30 cm diameter, 2 m length) in a stream channel to those on an adjacent upland site at the H. J....
DB Code: TD017
Study date: June 04, 1985 to June 16, 2015
Data
These data provide a time series of changes in nitrogen fixation rates, and respiration rates for four common PNW species. The purpose is to understand when these rates reach a...
DB Code: TD018
Study date: March 01, 1987 to May 15, 2006
Data
To examine the seasonal and successional patterns of respiration losses for four species (Abies amabilis, Pseudotsuga menziesii, Thuja plicata, Tsuga heterophylla), and two...
DB Code: TD020
Study date: January 10, 1986 to September 30, 1996
Data
This study was established to examine the loss of mass and changes in nutrient content of fine woody debris in various ecosystems. Also examined was the effect of piece size,...
DB Code: TD021
Study date: October 15, 1985 to October 29, 2015
Data
This data set is used to document the changes in external characteristics, density, nutrient content, and form of carbon associated with various decay classes and ages of logs and...
DB Code: TD022
Study date: September 01, 1982 to June 11, 2001
Data
The primary objective of this study is to examine the control that substrate quality and climate have on patterns of long-term decomposition and nitrogen accumulation in above-...
DB Code: TD023
Study date: January 31, 1990 to June 12, 2007
Data
Fine woody detritus volume and mass in small watersheds at Andrews Experimental Forest, 2002 to 2003
Four small watersheds (WS06, WS07, WS08, and WS09) at the Andrews Experimental Forest were inventoried for fine woody detritus (FWD) using the line transect method as described in...
DB Code: TD024
Study date: June 17, 2002 to September 30, 2003
Data
This study is part of the long-term log decay study (200 years). The experiments are being conducted at six sites located within intact old-growth Douglas-fir-western hemlock...
DB Code: TD025
Study date: September 01, 1986 to December 31, 1992
Data
The purpose of this study is to test the effect of log species and decomposition on the moisture content and water stores in logs.
DB Code: TD026
Study date: January 09, 1985 to November 30, 1988
Data
Measurement data is provided for the radial thickness of various tissue types in wood of varying diameters. These data can be used to create equations to predict the fraction of...
DB Code: TD027
Study date: January 09, 1985 to January 01, 2005
Data
These data provide an inventory of the mass of forest floor organic matter stored within various forest types. This data is used to determine total organic matter, carbon, and...
DB Code: TD028
Study date: January 01, 1992 to December 10, 2003
Data
The primary objective of this study is to examine the control that substrate quality and climate have on patterns of long-term decomposition and nitrogen accumulation in above-...
DB Code: TD029
Study date: January 01, 1993 to January 01, 2003
Data
These data provide an inventory of the mass of downed fine woody debris stored within various forest types. This data is used to determine total organic matter, carbon, and...
DB Code: TD030
Study date: January 01, 1992 to September 18, 2000
Data
We examined the effects of species, initial substrate quality, and site differences on woody root decomposition and its nitrogen dynamics in Sitka spruce (Picea sitchensis),...
DB Code: TD031
Study date: June 01, 1995 to June 01, 2006
Data
Decomposition of woody roots in Sitka spruce (Picea sitchensis (Bong.) Carrière), Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), and ponderosa pine (Pinus ponderosa P. Laws....
DB Code: TD032
Study date: June 01, 1995 to June 01, 1997
Data
These data can be used to provide an inventory of the volume of coarse woody debris stored in forests.
DB Code: TD035
Study date: June 01, 1997 to September 30, 2005
Data
Site locations for the long-term decomposition experiment that was established at the HJ Andrews Experimental Forest in 1985. The duration of the study is anticipated to be 200...
DB Code: TD040
Study date: January 09, 1985 to June 20, 2005
Data
This database contains data on patterns of fall and breakage by riparian trees along streams in the Pacific Northwest. Data in these tables were collected from 2000-2002. Two...
DB Code: TD042
Study date: January 09, 2000 to June 21, 2002
Data
Seasonal and annual rates of litterfall have been sampled at 6 permanent plots picked to represent a range of habitats and elevations. To assess variation in litterfall and...
DB Code: TL001
Study date: June 01, 1977 to January 11, 1985
Data
To establish rates of ecosystem processes in a near pollutant free environment and measure yearly patterns of variability of these processes. The methodologies used in this study...
DB Code: TL003
Study date: June 19, 1984 to January 01, 1987