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  • KOREAN
  • P-ISSN2287-8327
  • E-ISSN2288-1220
  • SCOPUS, KCI

ISSN : 2287-8327

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Vol.35 No.4

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Short-term effects of fertilizer application on soil respiration in red pine stands

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2012, v.35 no.4, pp.307-311

(University of South Australia)
Nanthi S. Bolan (University of South Australia)
Ravi Naidu (University of South Australia)
Nanthi, S. B. , & Ravi, N. (2012). Short-term effects of fertilizer application on soil respiration in red pine stands. Journal of Ecology and Environment, 35(4), 307-311.

Abstract

This study was conducted to evaluate the dynamics of soil respiration (total soil and heterotrophic respiration) following fertilizer application in red pine forests. Fertilizer (N:P:K = 113:150:37 kg/ha), which reflects current practices in Korean forest, was applied in April 2011, and total soil and heterotrophic respiration rates were monitored from April 2011 to March 2012. Monthly variation of total soil and heterotrophic respiration rates were similar between the fertilizer and control treatments, as soil temperature was the dominant factor controlling the both rates. Total soil respiration rates during the study period were not significantly different between the fertilizer (0.504 g CO2 m-2 h-1) and control (0.501 g CO2 m-2 h-1) treatments. However, the proportion of heterotrophic respiration was higher in the fertilizer (78% of total soil respiration rates) than in the control (62% of total soil respiration rates) treatments. These results suggest that current fertilizer practices in Korea forest soil do not substantially affect total soil respiration rates.

keywords
carbon cycle, fertilization, heterotrophic respiration, pine forest, soil CO2 efflux

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