Effects of Throughfall Exclusion on Soil Respiration in a Moso Bamboo Forest Soil in Southeast China

Abstract:

Both soil temperature and soil water condition are important factors that influence soil respiration at different forest. In this study, a throughfall exclusion experiment was carried out to explore effects of increased soil temperature and decreased soil water content on soil respirations in the bamboo forest in North Zhejiang of China. The results showed that 1) monthly variation in soil respiration ranges from 2.00 to 0.63μmol·m^-2·s^-1 and 2.20 to 0.66μmolm^-2s^-1in throughfall exclusion and control plots respectively. The soil respiration monthly variation following the monthly variation of soil temperature and in contrast to the monthly soil water content. 2) Soil temperature can explain 65.5%and 73.9% of the variance of soil respiration in throughfall exclusion and control plots respectively. Multivariate linear model based on temperature and soil water content explained 66.9% and 73.4% of the variance of soil respiration in throughfall exclusion and control plots respectively. Soil water content had no significant relationship with soil respiration. Q₁₀ values of throughfall exclusion and control plots were 5.99 and 4.44.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3762-3766
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3762
• Online since: August 2013
• Authors: Qian Li*, Ben Zhi Zhou, Xiao Ming Wang, Xiao Gai Ge, Yong Hui Cao
• Keywords: Q₁₀ Value, Soil Respiration, Soil Temperature, Soil Water Content, Throughfall Exclusion

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