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1 March 2016 The Soil Drying Along the Increase of Warming Masks the Relation between Temperature and Soil Respiration in an Alpine Meadow of Northern Tibet
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Abstract

A warming experiment with two magnitudes was performed in an alpine meadow of Northern Tibet since late June, 2013. Open top chambers (OTCs) with two top diameters (0.60 m and 1.00 m) were used to increase soil temperature. Soil respiration (Rs) was measured during the growing season in 2013–2014. The OTCs with top diameters of 1.00 m and 0.60 m increased soil temperature by 1.30 and 3.10oC, respectively, during the whole study period, but decreased soil moisture by 0.02 and 0.05 m3 m-3, respectively. However, the two patters of OTCs did not affect Rs. These results implied that a higher warming did not result in a higher Rs but a greater soil drying. Therefore, a higher warming may not cause a higher soil respiration, which was most likely due to the fact that a higher warming may result in a greater soil drying.

Zhen-Xi Shen, Jiang-Wei Wang, Wei Sun, Shao-Wei Li, Gang Fu, Xian-Zhou Zhang, Yang-Jian Zhang, Cheng-Qun Yu, Pei-Li Shi, and Yong-Tao He "The Soil Drying Along the Increase of Warming Masks the Relation between Temperature and Soil Respiration in an Alpine Meadow of Northern Tibet," Polish Journal of Ecology 64(1), 125-129, (1 March 2016). https://doi.org/10.3161/15052249PJE2016.64.1.011
Published: 1 March 2016
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