Instruction on ancillary vegetation measurements in croplands
Download the last version and the previous versions of the Instruction on Ancillary Vegetation Measurements in Croplands, including Green Area Index, Above Ground Biomass and Litter Biomass. This Instruction is based on the following ICOS protocols:
- Gielen et al. “Ancillary Vegetation Measurements in Croplands”
and published in:
Gielen et al. (2018). Ancillary vegetation measurements at ICOS ecosystem stations. International Agrophysics, vol. 32, p. 645-664, ISSN: 0236-8722, doi: 10.1515/intag-2017-0048
The Instruction document can be cited as:
Op de Beeck, M., Gielen, B., & Papale, D. (2017). ICOS Ecosystem Instructions for Ancillary Vegetation Measurements in Croplands (Version 20240325). ICOS Ecosystem Thematic Centre. https://doi.org/10.18160/e568-rdtd
Instruction document history and download
| Version |
Changes respect to the previous |
20240325
download... |
Updated informing that measuring GAI with a ceptometer is discouraged in short crops, such as beet and potato, and in all crops when plants are small. Added that it is mandatory to estimate ELADP at each ceptometer measurement date. |
| 20200331 |
Corrected and updated the timing of GAI measurements in the Appendix. |
| 20200316 |
Clarified that the AGB measurement at peak AGB must be done in CPs and SP-I locations. Clarified that in crop mixtures AGB, directly measured GAI and litter must be measured at species level. Corrected some lines in section Submission. |
| 20191123 |
Corrected some inconsistencies and textual errors. Added canopy height as a separate variable. Added an example figure for biomass separation between organs in cereals. Clarified timing of GAI measurement. |
| 20180126 |
Clarified that AGB measurement must be done also in the CP. Frame for the harvest residual reduced to 0.5x0.5 m. Added information about the Submission of BADM variables. |
| 20170911 |
Clarified that true N must be considered, AGB expanded to all the SP-I locations, corrected inconsistencies. |
| 20170830 |
First version |
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