Biomass Compilation for Herbaceous Systems
For data from the non-crop biomass harvest the category “Surface Litter” has been removed for this table. The category ‘Standing Dead’ is included. “Standing Dead” (standing dead plants of indeterminate species) was first sampled in 1997. The standing dead designation is for plants that grew this year but had senesced and were unidentifiable at harvest. From 1999 to 2011 this category may also include plant scraps that were unidentified after the plants were sorted to species in the field lab.
This datatable is part of the Annual Net Primary Production on the Main Cropping System Experiment dataset. Aboveground annual net primary production (ANPP) has been measured on the LTER main site since 1990 and on the successional and forested sites since 1993. ANPP is measured at peak biomass for a given treatment. In some systems with multiple harvests or complex communities that have peaks occurring at different times of the year, measurements are taken at multiple times per year. Additional ANPP measurements are made where appropriate using leaf litter traps, estimates of diameter from tree basal diameter and for the poplar treatment occasional destructive harvests. See the ANPP protocol for descriptions of the sampling and measurement methods for each of the treatments.
|Experiment:||Main Cropping System Experiment (MCSE)|
|Data available from:||January 1990 to September 2016|
|Core Areas||Primary Production,Populations,Disturbance|
|Date||date the sample was collected|
|Treatment||treatment of the sampled plot|
|Replicate||replicate of the sampled plot|
|Station||sampling station within the plot|
|Fraction||plant fraction collected (WHOLE, SEED, VEG)|
|Biomass g||measured biomass in grams per meter squared||g/m2|
|2016||Harvest||2016-09-07||TSF||R2||S3||Celastrus orbiculatus Thunb.||WHOLE||5.97|
|2016||Harvest||2016-09-07||TSF||R2||S3||Parthenocissus quinquefolia (L.) Planch.||WHOLE||0.71|
|2016||Harvest||2016-09-07||TSF||R2||S3||Rhamnus frangula L.||WHOLE||5.59|