Spatial distribution of organic carbon in the Atacama Desert, Chile
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| Title: | Main Title: Spatial distribution of organic carbon in the Atacama Desert, Chile |
| Description: | Abstract: The Atacama Desert in northern Chile is known as the driest region on earth; however traces of life, e.g. in form of Corg, can still be found. The analytical assessment of Corg at very low levels is challenging. Also the spatial heterogeneity of Corg at the desert´s surface and its controls are largely unknown. We here present Corg analysis, which is based on a temperature gradient method (DIN19539; Soli TOC cube, Elementar, Hanau). This allows combustion of samples with up to 5 g sample weight without the need to remove carbonate. This avoids loss and increases precision of Corg quantification at lowest concentrations. Soils were sampled in the southern Atacama in a transect from the coast to the hyper-arid core of the desert. We can show that Corg contents decrease from 1.47 % to 0.1 % in the first 14 km of the gradient. However, first results suggest that within the hyper-arid core of the Atacama Corg contents increase. This gives first hints to the vegetation history of the desert and the dispersal of life. |
Responsible Party
| Creators: | Ramona Mörchen (Author), Ghazal Moradi (Author), Roland Bol (Author), Christian Giese (Author), Erwin Klumpp (Author), Wulf Amelung (Author), Eva Lehndorff (Author) |
| Publisher: | CRC1211 Database (CRC1211DB) |
| Publication Year: | 2019 |
Topic
| CRC1211 Topic: | Biology |
| Related Subproject: | B5 |
| Subject: | Keyword: Biogeochemistry of Soils |
File Details
| Filename: | DBGTagung2017.pdf |
| Data Type: | Event - Event |
| File Size: | 9.5 MB |
| Date: | Available: 06.09.2017 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | German |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. |
| Access Limitations: | According to the CRC1211DB data policy agreement. |
| Licence: | None |
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Specific Information - Presentation
| Presenter: | Ramona Mörchen |
| Presentation Date: | 6th of September, 2017 |
| Presentation Type: | Talk |
| Event: | Jahrestagung der deutschen Bodenkundlichen Gesellschaft |
| Event Type: | Other |
| Event Location: | Göttingen |
| Event Duration: | 2nd of September, 2017 - 7th of September, 2017 |
Metadata Details
| Metadata Creator: | Ramona Mörchen |
| Metadata Created: | 22.06.2019 |
| Metadata Last Updated: | 22.06.2019 |
| Subproject: | B5 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 147 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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