This experiment began in 1966 on a site that was originally
forested. Later, the crops grown on the site were pea and wheat.
The treatments and rotations in the experiment are: Rotation 1 -
This experiment began in 1966 on a site that was originally a
stppe-forest ecosystem. The crops at the site previous to the
experiment were pea and wheat.
The land uses in the experiment are: Rotation ...
Human activities are altering biodiversity and the N cycle globally,
affecting marine and terrestrial carbon cycling. Only a few
specialized bacteria carry out nitrification in terrestrial
The importance of standing dead material, including coarse woody
debris in forests, has been shown to be important in the regeneration
of forests, and critical for maintaining a variety of ecosystem ...
We studied drought effects on ecosystem functioning in a semiarid
grass-shrub steppe South of Argentina. We designed a 2-year rainfall
manipulation experiment where we decreased water input with rainout ...
This long term experiment began in 1972. The experimental site is a
tropical area, with a minimum annual temperature of 5.9 deg C, maximum
annual temperature of 42.8 deg C, and mean annual rainfall ...
This experiment was initiated in 1965 at a site that has been in
arable use for a very long time. The land use in this experiment
consists of a cropping sequence: Sugar beet, Spring oats, Winter
LTER - Long-Term Ecological Research Program/H.J. Andrews Forest (AND)
LTER/AND003 [Summary adapted from the LTER Core Data Set Catalog]:
The purpose of this study is to describe the external characteristics ...
This experiment began in 1957 at a site that was cultivated for
several centuries before the start of the experiment. It has had no
manure (and no cattle) since 1912. The geology at the site is glacial ...
Long-term records of streamflow chemistry reflect the sampling effort and
laboratory analysis initiated in 1968. The study examines nutrient outputs via
stream runoff in small watersheds. The original ...
This experiment began in 1967 at a site that was originally
shrubland. The project consists of one rotation: Pearl
millet-wheat. Treatments = 1) Absolute control, 2) Farm yard manure
added, 3) N-fertilizer ...
Long-term records of precipitation chemistry reflect the sampling effort and
laboratory analysis initiated in 1969. The study examines nutrient inputs via
precipitation in small watersheds and examines ...
In September 1996, a water-quality study was done by the U.S. Geological
Survey, in coordination with the U.S. Forest Service, in headwater streams of
Steamboat Creek, a tributary to the North Umpqua ...