需要订阅 JoVE 才能查看此. 登录或开始免费试用。
A CO2 Concentration Gradient Facility for Testing CO2 Enrichment and Soil Effects on Grassland Ecosystem Function
Chapters
- 00:05Title
- 01:10Collecting Soil Monoliths
- 02:05Establishing Plant Communities on Soil Monoliths
- 03:17Monolith Chambers
- 05:07CO2 and Air Temperature Control
- 05:59Atmospheric CO2 (CA) Treatment and Precipitation Input
- 08:03Results: Seven Year Study
- 09:23Conclusion
The Lysimeter Carbon Dioxide Gradient Facility creates a 250 to 500 µl L-1 linear carbon dioxide gradient in temperature-controlled chambers housing grassland plant communities on clay, silty clay, and sandy soil monoliths. The facility is used to determine how past and future carbon dioxide levels affect grassland carbon cycling.
