Gilmanov, T. G. 1996. NPP Grassland: Otradnoe, Russia, 1969-1973. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
The productivities of two meadows (i.e., one loamy soil, one sandy soil) were determined at the Otradnoe study site from 1969 to 1973. Measurements of monthly dynamics of above-ground and below-ground plant biomass were made for each growing season (April-October). Above-ground net primary production was estimated for each year. These data are part of a series of grassland data sets recently assembled and checked by Dr. Tagir Gilmanov, which cover a wide range of climate and "continentality" (increasing maximum summer temperatures, decreasing precipitation) from the North-West to the South-East of the Commonwealth of Independent States (former U.S.S.R.).
The Otradnoe study sites (60.8 N 30.3 E) are situated on the Karelian peninsula, 100 km north of St. Petersburg in north-western Russia. They were established for the Russian International Biological Programme (IBP) by the V.L. Komarov Botanical Institute of the Russian Academy of Sciences. These kind of meadows represent man-made pastures in the southern taiga sub-zone of the forest zone, and are typically mowed annually.
Monthly dynamics of above and below-ground live and dead matter are available for the sandy meadow from 1969 to 1971, and for the loamy meadow from 1969 to 1972. There is also a single determination of above and below-ground live and dead matter at the sandy meadow site for June 1972, and additionally a single determination of only above-ground live and dead matter at the loamy meadow site for May 1973. Monthly N, P, and S, content of above-ground live biomass are available for 1969-1971 at the sandy meadow site.
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