Temporal changes of soil respiration under different tree species

Abstract

Soil respiration rates were measured monthly (from April 2007 to March 2008) under four adjacent coniferous plantation sites [Oriental spruce (Picea orientalis L.), Austrian pine (Pinus nigra Arnold), Turkish fir (Abies bornmulleriana L.), and Scots pine (Pinus sylvestris L.)] and adjacent natural Sessile oak forest (Quercus petraea L.) in Belgrad Forest-Istanbul/Turkey. Also, soil moisture, soil temperature, and fine root biomass were determined to identify the underlying environmental variables among sites which are most likely causing differences in soil respiration. Mean annual soil moisture was determined to be between 6.3 % and 8.1 %, and mean annual temperature ranged from 13.0°C to 14.2°C under all species. Mean annual fine root biomass changed between 368.09 g/m(2) and 883.71 g/m(2) indicating significant differences among species. Except May 2007, monthly soil respiration rates show significantly difference among species. However, focusing on tree species, differences of mean annual respiration rates did not differ significantly. Mean annual soil respiration ranged from 0.56 to 1.09 g C/m(2)/day. The highest rates of soil respiration reached on autumn months and the lowest rates were determined on summer season. Soil temperature, soil moisture, and fine root biomass explain mean annual soil respiration rates at the highest under Austrian pine (R (2) = 0.562) and the lowest (R (2) = 0.223) under Turkish fir.

Soil Carbon Dioxide Fluxes from Three Forest Types of the Tropical Montane Rainforest on Hainan Island, China

“…Besides, CO 2 emissions also showed significant seasonal differences in all forest types (P < 0.01), with relatively higher CO 2 emission rates during the wet season than during the dry season (Fig. 3b-d), similar to many previous results (Akburak and Makineci 2013). This is probably because of the seasonal variation of environmental factors (Table 1).…”

“…Besides, atmospheric carbon dioxide (CO 2 ) concentration and nitrogen (N) deposition may interactively impact soil respiration in terrestrial ecosystems . Soil CO 2 fluxes were also found to vary with vegetation species (Adachi et al 2006;Akburak and Makineci 2013;Huang et al 2014;Katayama et al 2009;Nottingham et al 2012;Soe and Buchmann 2005) and the degree of mineralization (Cardoso et al 2013;Silvola et al 1996;Wood et al 2012).…”

Drivers of Soil Carbon Dioxide Efflux in a 70 years Mixed Trees Species of Tropical Lowland Forest, Peninsular Malaysia

“…Desert scrub vegetation, swamps and marshes and tundra have the lowest CO 2 efflux rates at 224, 200 and 60 g C m -2 yr -1 , respectively. The magnitude of the total amount of soil CO 2 efflux into the atmospheric carbon pool is estimated to be 68-100 Pg C/year (Akburak & Makineci 2013), which could have a negative impact on the atmosphere and hence contribute to climate change (Tang et al 2006). …”

“…Raich et al (2002) reported that soil CO 2 efflux is ten times greater than that from deforestation and fossil fuel combustion on a global scale, with about 40-90% of ecosystem respiration generated by soil CO 2 efflux in the forest ecosystem (Akburak & Makineci 2013).…”

“…The various vegetation of tree species and the quantity and quality of litter fall, stand density and structure have an impact on the soil CO 2 efflux by changing the soil microclimate (Akburak & Makineci 2013). This scenario indicates that various tree species are significant indicators of the soil respiration rate and any disturbance in these vegetation patterns will greatly affect the response of the soil to environmental change (Raich & Tufekcioglu 2000).…”