This data set contains contains two ASCII files. One file, in comma-separated-values (.csv) format, provides above-ground net primary production (ANPP) and total NPP [expressed in grams of carbon per square meter per year (gC/m2/year)] and the C fraction used to convert dry biomass weight to carbon content for 127 unique study sites in northern Eurasia. The sites are classified by ecozone (i.e., tundra, forest-tundra, taiga, mixed forest, broadleaf forest, small-leaved secondary forests, forest bogs, meadows, steppe, semi-desert, and polar desert) and plant community (phytocoenosis). Each study location is georeferenced (latitude/longitude) with elevation and zonal/interzonal information. References to original author, year of publication, and table/record in Bazilevich (1993) are also included in the data file.
The second ASCII file, in text (.txt) format, provides the bibliography of 274 original-source references (in Russian) to accompany the 127 data records on NPP from Bazilevich (1993).
The data are a subset of data adapted from Bazilevich, N.I. 1993. Biological Productivity of Ecosystems of Northern Eurasia. Nauka Publishers, Moscow. 293 pp. (in Russian). The data set originated from field measurements of primary productivity collected between 1940 and 1988 for most of the terrestrial vegetation types in northern Eurasia.
Revision Notes:Only the documentation for this data set has been modified. The data files have been checked for accuracy and are identical to those originally archived in 2001.
The Net Primary Productivity (NPP) data collection contains field measurements of biomass, estimated NPP, and climate data for terrestrial grassland, tropical forest, temperate forest, boreal forest, and tundra sites worldwide. Data were compiled from the published literature for intensively studied and well-documented individual field sites and from a number of previously compiled multi-site, multi-biome data sets of georeferenced NPP estimates. The principal compilation effort (Olson et al., 2001) was sponsored by the NASA Terrestrial Ecology Program. For more information, please visit the NPP web site at http://daac.ornl.gov/NPP/npp_home.html.
Cite this data set as follows:
Denissenko, E.A., V. Brovkin, and W. Cramer. 2013. NPP Multi-Biome: PIK Data for Northern Eurasia, 1940-1988 (Based on Bazilevich), R1. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/575.
This data set was originally published as:
Denissenko, E.A., V. Brovkin, and W. Cramer. 2001. NPP Multi-Biome: PIK Data for Northern Eurasia, 1940-1988
(Based on Bazilevich). Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory
Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
Project: Net Primary Production (NPP)
This data set contains contains two ASCII files. One file, in comma-separated-values (csv) format, provides above-ground net primary production (ANPP) and total NPP [expressed in grams of carbon per square meter per year (gC/m2/year)] and the C fraction used to convert dry biomass weight to carbon content for 127 unique study sites in northern Eurasia. The sites are classified by ecozone (i.e., tundra, forest-tundra, taiga, mixed forest, broadleaf forest, small-leaved secondary forests, forest bogs, meadows, steppe, semi-desert, and polar desert) and plant community (phytocoenosis). The second ASCII file, in text (txt) format, provides the bibliography of 274 original-source references of data on NPP from Bazilevich (1993).
The data are a subset of data adapted from Bazilevich, N.I. 1993. Biological Productivity of Ecosystems of Northern Eurasia. Nauka Publishers, Moscow. 293 pp. (in Russian). The data set originated from field measurements of primary productivity collected between 1940 and 1988 for most of the terrestrial vegetation types in northern Eurasia.
This data set contains contains two ASCII files. One file, in comma-separated-values (csv) format, provides above-ground net primary production (ANPP) and total NPP [expressed in grams of carbon per square meter per year (gC/m2/year)] and the C fraction used to convert dry biomass weight to carbon content for 127 unique study sites in northern Eurasia. The sites are classified by ecozone (i.e., tundra, forest-tundra, taiga, mixed forest, broadleaf forest, small-leaved secondary forests, forest bogs, meadows, steppe, semi-desert, and polar desert) and plant community (phytocoenosis). The second ASCII file, in text (txt) format, provides the bibliography of 274 original-source references of data on NPP from Bazilevich (1993).
Site: Northern Eurasia
Site Boundaries: (All latitude and longitude given in decimal degrees)
| Site (Region) | Westernmost Longitude | Easternmost Longitude | Northernmost Latitude | Southernmost Latitude |
|---|---|---|---|---|
| Northern Eurasia | 23 | 173 | 76 | 39 |
Site Information
The data summarize productivity values for 127 unique study sites in northern Eurasia. The sites are classified by ecozone (i.e., tundra, forest-tundra, taiga, mixed forest, broadleaf forest, small-leaved secondary forests, forest bogs, meadows, steppe, semi-desert, and polar desert) and plant community (phytocoenosis). For each plant community, there is a general description and a list of dominant plant species. Most site locations (latitude/longitude) were not given in the original literature, so they were estimated approximately to one degree. Elevation ranges from 0 m to 3,000 m.
Information not available.
1940/01/01-1988/12/31
The temporal representation is typical for the peak of the growing season.
Table 1. Files in this data set archive
FILE NAME |
FILE SIZE |
TEMPORAL COVERAGE | FILE CONTENTS |
bazilevich_npp127.csv |
20 KB |
1940/01/01 - 1988/12/31 | Net primary productivity data for terrestrial ecosystems in Northern Eurasia |
bazilevich_274refs.txt |
49 KB |
1950/01/01-1988/12/31 | Bibliography of 274 original-source references (in Russian) to accompany the 127 data records on NPP from Bazilevich (1993). |
NPP Data. NPP estimates for the northern Eurasia sites are provided in one ASCII file (.csv format). The variable values are delimited by commas. The values -999 and -9999 used to denote missing values. All NPP units are in gC/m2/year (carbon equivalent dry weight).
Table 2. Column headings in NPP file
COLUMN HEADING |
DEFINITION |
UNITS |
phytocoenosis |
General plant community description and a list of dominant plant species | text |
NPP (gC/m2/year) |
Total NPP expressed in grams of carbon per square meter per year | gC/m2/year |
Elevation |
Elevation at or above sea level | meters |
Latitude |
Latitude of study site | decimal degrees |
Longitude |
Longitude of study site | |
Supposed Author |
Last name of original author of NPP data | text |
Year |
Year in which data were collected | numeric |
| Zone | Ecological zone in which study site was located | text |
| Zonal/Intrazonal | Indicates whether the vegetation is associated with a particular zone or is included in the zonal vegetation but does not form an independent zone | text |
| C fraction | The conversion factor used to convert dry biomass weight to carbon content for NPP values | numeric |
| ANPP (gC/m2/year) | Above-ground NPP expressed in grams of carbon per square meter per year | gC/m2/year |
| Table in B93 | Reference to data table in Bazilevich (1993) where data were extracted | numeric |
| Record in B93 table | Reference to record in data table in Bazilevich (1993) where data were extracted | numeric |
Sample NPP Data Record
Phytocoenosis, NPP (gC/m2/year), Elevation (m), Lat (N), Long (E), Supposed Author, Year, Zone, Zonal/Intrazonal, C fraction, ANPP (gC/m2/yr), Table in B93, Record in B93 table Low bush-grass-lichen tundra with Dryas punctata, Novosieversia glacialis, Cetraria sp., 99, 100, 72, 105, Shamurin, 1970, tundra, zonal, 0.56, 41, 1, 3, |
Bibliography File. A bibliography of 274 original-source references (in Russian) to accompany the 127 data records on NPP from Bazilevich (1993) is provided in a single ASCII text file.
Sample Bibliography Record
1. Abaturov Yu.D. Nekotorye osobennosti biologitchescogo krugovorota azota i zolnych elementov v sosnyakach Yuzschnogo Urala//Lesnye potchvy Urala.Sverdlovsk,1966. P.69-77 (Tr.UFAN;Vyp.55) |
Multi-biome biomass/production data for comparison with models and estimation of NPP.
Most site locations (latitude/longitude) were not given in the original literature, so they were estimated approximately to one degree.
Sources of Error
Information not available.
NPP data, plant community type (phytocoenosis), ecozone, and other information for 127 unique study sites in Northern Eurasia are based on field measurements and were extracted from published literature (Bazilevich, 1993). Most site locations (latitude/longitude) were not given in the original literature, so they were estimated approximately to one degree. NPP values were converted to carbon content (gC/m2/year) using the fractions reported in the data file.
This data set is available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).
Web Site: http://daac.ornl.gov
E-mail: uso@daac.ornl.gov
Telephone: +1 (865) 241-3952
Olson, R. J., K.R. Johnson, D.L. Zheng, and J.M.O. Scurlock. 2001. Global and Regional Ecosystem Modeling: Databases of Model Drivers and Validation Measurements. ORNL Technical Memorandum TM-2001/196. Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.
Bazilevich, N.I. 1993. Biological Productivity of Ecosystems of Northern Eurasia. Nauka Publishers, Moscow. 293 pp. (in Russian).
Additional Sources of Information:
Bazilevich, N.I. 1994. Geographical patterns in the biological productivity of soil-and-vegetation associations of Northern Eurasia. Eurasian Soil Science C/C of POCHVOVEDENIE 27 (3): 1
Bazilevich, N.I. 1994. Global primary productivity: phytomass, net primary production, and mortmass. NOAA National Geographical Data Center, Global Ecosystems Database, Boulder CO, USA.
Bazilevich, N.I., A.A. Tishkov, and G.E. Vilchek. 1997. Live and dead reserves and primary production in polar desert, tundra and forest tundra of the Former Soviet Union. Ecosystems of the World 3: 509-540.