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Forest Aboveground Net Primary Production — Main Cropping System Experiment (MCSE)

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Aboveground net primary production (ANPP) of the MCSE Coniferous (TCF) and Deciduous (TDF) Forest sites, calculated as the sum of annual woody biomass production of all trees, as estimated from allometric equations and annual measurements of DBH, and leaf production, as estimated from litter traps.

This datatable is part of the Primary Production of Forested Systems of the Main Cropping System Experiment dataset.

This dataset contains the data needed to determine the biomass and aboveground net primary production (ANPP) in the Coniferous (TCF) and Deciduous (TDF) Forest sites of the LTER Main Cropping System Experiment (MCSE). Allometric equations are used to estimate the standing woody biomass (since 1998) of each tree, based on the diameter at breast height (DBH; for trees >5 cm in diameter), typically measured in January. Annual woody production is estimated as the difference in the woody biomass of each tree between consecutive years and annual primary production as the sum of annual woody production and leaf production. Leaf production is estimated as the biomass of leaf litter collected in litter traps deployed in late summer through leaf fall. Litter collected from Poplar (T5) and Mid-successional (TSF) plots is also included.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1999 to January 2018
Dataset: KBS045
Datatable ID: KBS019-022.108
Core Areas Primary Production,Disturbance
Repository link: http://doi.org/10.6073/pasta/b07ff1f1366f4252d651f2b45710f3d8
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Last Updated 2024-03-18
Variate Description Units
Year year that the biomass growth in credited in
treatment treatment the sample was taken from
replicate replicate plot that the sample was taken from
leaf biomass kg m2 year Leaf biomass collected by the litter traps kg/m2/year
woody biomass kg m2 year Woody biomass from DBH measurements kg/m2/year
biomass kg m2 year annual biomass accumulation per square meter kg/m2/year

Data Excerpt

year treatment replicate leaf_biomass_kg_m2_year woody_biomass_kg_m2_year biomass_kg_m2_year
2023 TCF R1 0.14 0.29 0.43
2023 TCF R2 0.1 -0.13 -0.03
2023 TCF R3 0.06 0.58 0.64
2023 TDF R1 0.29 0.26 0.55
2023 TDF R2 0.2 0.89 1.09
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