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Research Article
Responses of soil respiration to long-term experimental warming in a tallgrass prairie: Patterns and causes
Author(s): Allelua Niyokwizera, Yiqi Luo, Etienne Tuyishimire, Aneesh Kumar Chandel and Lifen Jiang*
Understanding the long-term effect of temperature increases on soil respiration remains difficult to date. To the best of our knowledge, there is a paucity of literature on how soil respiration responds to long-term temperature increases in field experimental studies. A 17-year field study was conducted in a tallgrass prairie in Oklahoma, USA, to assess how soil respiration would respond to temperature rises in long-term warming and to investigate the underlying mechanisms regulating soil respiration in this ecosystem. Moreover, to mimic the traditional method of collecting hay in this region, a further step known as the clipping treatment was put into place. We measured soil respiration rates, Net Primary Production (NPP), and environmental variables, including air and soil temperature and soil moisture. Our results showed that warming significantly enhanced soil respiration in both .. View More»
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