Soil Respiration and its Controlling Factors in Six Coastal Young Monoculture Plantations

Abstract:

Biotic and abiotic factors how to influence soil respiration in different young monoculture plantations are not clearly understood. Soil respiration and its controlling factors were studied in six monoculture plantations in the coastal area of Shanghai, China. Soil respiration was significant difference among six stands. Variations of soil respiration in six plots were not directly related to changes in soil water content, but significant relationship was observed between soil respiration and soil temperature. The variation of soil respiration was firmly correlated to the variation of leaf area index (LAI) or gap fraction (GF), soil respiration enhanced with the increase of GF (or decreasing LAI). The microclimate within forest and soil temperature also had positively correlation with soil respiration, but which mainly were affected by GF or LAI. There was no significant relationship between soil respiration and either root biomass or soil nutrients.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3751-3756
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3751
• Online since: August 2013
• Authors: Xiang Rong Cheng, Mu Kui Yu, Tong Gui Wu, Zong Xing Wang
• Keywords: Canopy Structure, Carbon Cycle, Forest Microclimate, Soil Nutrient, Soil Respiration

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