TY - GEN T1 - NPP Boreal Forest: Siberian Scots Pine Forests, Russia, 1968-1974, R1 AU - KRANKINA, O.N. DO - 10.3334/ORNLDAAC/467 UR - http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=467 AB - This data set contains two ASCII files (comma-separated-value format). One file provides components of net primary productivity, standing biomass, age and stand structure, and litterfall data for 11 stands of Scots pine (Pinus sylvestris) in the Tomsk Region of Russia (approx. 58 N 83 E). The second file contains data for the same types of variables for three stands of Scots pine in the Irkutsk Region of Siberia (approx. 53 N 103 E). Field measurements were made in 0.3-0.4 ha forest plots between 1968 and 1974. The forest plots range in age from 25 to 122 years old. Tree biomass was determined from volume and density measurements and selective harvest. Understory and ground cover was harvested in 0.25m2 plots. Root mass has determined from harvested trees and soil monoliths. Wood increment was measured from annual rings. Root production was based on species-specific turnover rates. Leaf litterfall was measured in 0.5-1.0 m2 traps, and branch litterfall was estimated from 4.0 m2 plots. Revision Notes: The NPP data file has been split into two files, one for the Tomask forests and one for the Irkutsk forests. The data files have been revised to rearrange columns, add a total ANPP column, and correct previously reported data, where needed. Please see the ORNL DAAC Data Set Change Information file for more information PY - 2012 PB - ORNL Distributed Active Archive Center LA - en ER -