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RISS 인기검색어
- 검색키워드
- 저자 : Makineci, Ender (검색결과 2 건)
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Lee, Jongyeol,Makineci, Ender,Tolunay, Doğ,anay,Son, Yowhan Elsevier 2018 The Science of the total environment Vol.640 No.-
<P><B>Abstract</B></P> <P>A significant area of the oak forests in Turkey has been historically managed by short-rotation coppicing for wood production. Coppice management was almost abandoned in Turkey in 2006 and so investigating its impact on forest carbon (C) sequestration has become an important issue. Therefore, we investigated the net effect of this change in management on C sequestration by oak forests in Turkey using field measurement data and a forest C model (Forest Biomass and Dead organic matter Carbon (FBDC) model). The FBDC model estimated the annual forest C dynamics and considered the effect of the substitution of wood for fossil fuels under two management scenarios over a 100-year period: (1) abandoning coppice (no management) and (2) continuing coppice (20-year-interval harvest). The field measurement data were used to parameterize the FBDC model to the study sites and to verify the simulated C stocks. Continuing coppice management constrained an increase in the C stocks (116.0–140.3 Mg C ha<SUP>−1</SUP>) and showed a mean annual C sequestration of 0.6 Mg C ha<SUP>−1</SUP> yr<SUP>−1</SUP> if wood was substituted for fossil fuels. In contrast, abandoning coppicing practices increased the level of forest C stocks (128.1–236.2 Mg C ha<SUP>−1</SUP>), enhancing the mean annual C sequestration to 1.1 Mg C ha<SUP>−1</SUP> yr<SUP>−1</SUP>. Accordingly, the abandonment of coppice management increased the mean annual C sequestration by 0.5 Mg C ha<SUP>−1</SUP> yr<SUP>−1</SUP> in the long-term. However, sensitivity analysis showed a possibility of a larger difference in C sequestration between the two scenarios due to a decrease in the stand productivity by repeated coppices and a high likelihood of a lower substitution effect. The verification supported the scientific reliability of the simulation results. Our study can provide a scientific basis for enhancing C sequestration in coppice forests.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Abandoning coppice in Turkey is expected to affect carbon (C) sequestration. </LI> <LI> C sequestration was estimated under abandoning and continuing coppice scenarios. </LI> <LI> Forest carbon model and field measurement data were combined. </LI> <LI> Abandoning and continuing coppice sequestered 1.1 and 0.6 Mg C ha<SUP>−1</SUP> yr<SUP>−1</SUP>. </LI> <LI> The abandonment of coppice would enhance the C sequestration in the long-term. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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Lee, J.,Tolunay, D. a.,Makineci, E.,Ç,ö,mez, A. n.,Son, Y. M.,Kim, R.,Son, Y. EDP Sciences 2016 Annals of forest science Vol.73 No.2
<P>Key message Simulated and observed carbon stocks in Scots pine forests varied considerably with stand age. The contribution of biomass to the total forest carbon stocks increased and that of dead organic matter decreased with increasing stand age. Context Understanding changes in forest carbon stocks over time is important to estimate carbon inventory. Although Scots pine (Pinus sylvestris L.) is a main species in Turkey, studies on such changes are still lacking. Aims We aimed to estimate the changes in carbon stocks, with stand age, of Scots pine stands in Turkey using field work data and a forest carbon model (FBDC model). Methods Biomass and dead organic matter carbon stocks were investigated to adjust the forest carbon model and to verify the model estimates. Forest carbon stocks with regards to stand age were simulated. Results The simulated carbon stocks were generally in clear agreement with the observed values on a stand scale. Changes in simulated and observed carbon stocks of biomass and dead organic matter varied with stand age. The contribution of biomass to total forest carbon stocks increased, and that of dead organic matter decreased, with increasing stand age. Conclusion We found that the carbon stocks in each pool and their contribution to the total forest carbon stocks varied with stand age. Our results are expected to contribute to the understanding of annual changes in the carbon stocks of Turkish forests.</P>
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