ABSTRACTS ON FOREST ECONOMY, YIELD AND INVENTORY

21) BIOMASS PRODUCTION FROM HYBRID POPLAR CLONE (P.x euramericana (Dode) Guinier cv. "I-214")

Year/No: 1996/5                             ODC:521:522:523:524:561:562:566:812.144:812.31:176.1: Populus
Author(s): BIRLER, A.S., DINER, A. - KOCER, S.

In this study, the developmental trends in terms of volume, dry matter and energy increments in plantations with Populus x euramericana (Dode) Guinier cv. "I-214" growing at dense spacings in Izmit Poplar Nursery, were investigated. Using the data obtained from the experimental plantations established for this study purposes, the yield tables were constructed for "I-214" poplar plantations at very dense spacings. The yield tables present not only the estimates for plantation volume and volume elements, but also the estimates for dry matter and energy production.


22) THE EFFECTS OF AGRICULTURAL INTERCROPPING ON "I-214" POPLAR PLANTATIONS ECONOMICS

Year/No: 1999/1                             ODC: 305:307:308:651:666:737:761:762:913:176.1 Populus
Author(s): DINER, A. - KOCER, S.

In this study, the economic impact of agricultural intercropping calculated under "I-214" poplar plantations were investigated in the regions of Marmara, Western Black Sea and Aegean. For this aim, poplar plantations at 4 several spacing (4mx5m, 5mx5m, 5mx6m and 6mx6m) were sampled. Hybrid maize, sugar beet, dry bean, green bean and industrial tomato were cultivated as agricultural intercrops for a period of first three years of the sampled poplar plantations. In order to evaluate the economic impact of agricultural intercropping, financial inputs and outputs were calculated both; for poplar plantations alone and with agricultural intercrops of 11 combinations. Using these input and output values economic analyses were made according to profitability criteria of Net Present Valu (NPV), Net Benefit/Cost Ratio (NBCR) and Internal Rate of Return (IRR). Consequently, the economic resuts were obtained for poplar plantations alone and for 11 combinations of intercropping. Comparisons were made between the results of economic analyses. Financial rotations were also determined for poplar plantations with and without intercropping.


23) NEW FINANCING OPPORTUNITIES FOR PRIVATE SECTOR POPLAR CULTIVATIONS IN TURKEY

Year/No: 1999/2                             ODC: 238:624:651:676:677:722.1:742.2:913:941:942
Author(s): KOCER, S.

In this study, different management scenarios for poplar plantation investments were evaluated in terms of Internal Rate of Return (IRR), Net Present Value (NPV) and Net Benefit/Cost Ratio (NBCR). Intercropping was also involved within management scenarios. Concequently, investment programmes were prepared for poplar plantations of various management scenarios based on annual investment requirements and financial analyses. Various financial instruments and equity contribution options were evaluated for poplar plantation investments. Long term external financing options were defined in the equity funded poplar plantation investments. Provision of external funding and debt repayment profiles were proposed for the plantation investments where debt : equity ratios were 60:40% and 50:50%, respectively. Interest rates were taken as 4%, 6% and 8% in the above mentioned evaluations. It was observed that the most suitable financial instruments for long term external funding of plantations were zero coupon bonds mortgage certificates. A separate, investment model was proposed to subsidise small scale farmers who establish poplar plantations.


24) A Study of Volume Tables and Wood Density for Samsun (I-77/51 P. deltoides Bartr.) Poplars 

Year/No:: 2007/204       ODC: ODC: 521.27: 523: 524: 525: 812.144: 812.31: 176.1: Populus
Author(s): KOÇER, S., DÝNER, A., ŢENER, G. 

Populus deltoides Bartr. “I-77/51 (Samsun)” is registered and a leading commercial poplar clone for plantation establishment in Turkey. This clone is largely used in the Marmara and Central Black Sea regions. The wood of “Samsun” clone is marketed as veneer timber, saw log and for chipping purposes.
In this study, volume tables were arranged for “Samsun” clone which give tree stem volume, total tree volume and their volume by wood assortments as a function of tree diameter at breast hight and total tree hight.
In this study, mean density values for the wood of “Samsun” clone were estimated as 0,370 g/cm3 (370,434 kg/m3) for basic density (dry wood weight / green wood volume) and 0,421 g/cm3 (420,942 kg/m3) for dry wood density (dry wood weight / dry wood volume).
 


25) A Study of Volume Tables and Wood Density for I-45/51 (P. x euramericana (Dode) Guinier cv.) Poplars 

Year /No: 2007/205    ODC: ODC: 521.27: 523: 524: 525: 812.144: 812.31: 176.1: Populus
Author(s): KOÇER, S., ŢENER, G., DÝNER, A. 

Populus x euramericana (Dode) Guinier cv. “I-45/51” is a registered commercial poplar clone for plantation establishment in Turkey. This clone is largely used in the Marmara and Central Black Sea regions. The wood of “I-45/51” clone is marketed as veneer timber, saw log and for chipping purposes.
In this study, volume tables were arranged for “I-45/51” clone which give tree stem volume, total tree volume and their volume by wood assortments as a function of tree diameter at breast hight and total tree hight.
In this study, mean density values for the wood of “I-45/51” clone were estimated as 0,339 g/cm3 (339,399 kg/m3) for basic density (dry wood weight / green wood volume) and 0,389 g/cm3 (388,838 kg/m3) for dry wood density (dry wood weight / dry wood volume).

 

ABSTRACTS