Objectives and achieved results of BBN project in
Lithuania (II)
Gintautas Mozgeris et al.Potsdam, 12/12/2007
PLANNING BIOENERGY LANDSCAPES IN THE BALTIC SEA REGION – DEVELOPMENT AND PERSPECTIVES
FINAL RESULTS TRANSFER OF THE INTERREG IIIB- PROJECT BALTIC BIOMASS NETWORK (BBN) 12 DECEMBER 2007
CCI POTSDAM, BREITE STR. 2 A-C, 14467 POTSDAM, GERMANY
Short outline Modeling the amount of cutting
residues and timber volumes suitable for fuel Objectives Model for estimating the volume of tree
branches suitable for fuel Software for estimating the volume of
cutting residues per forest compartment Some testing results and application
perspectives
Objectives and achieved results of BBN project in Lithuania (II)
Objectives Two main types of forest management
plans (documents of special territory planning) Forest management schemes – prepared
for forest governors and region territories, and are purposed for defining of the general forest land use policies, preparation of their management concepts
Interior forest management projects – prepared for forest governors and private forest estates and are purposed for defining of concrete management mean system.
Objectives and achieved results of BBN project in Lithuania (II)
Objectives Well defined regulations, methodology
and criteria available, however: accurate, scientific well-founded and
operational methods on the stand level in calculating biomass amount and integrate this information into forest management projects not available or hardly suitable…
… if even available, then focused on total amounts of biomass (important more for ecologists), rather than on technologically and economically feasible resources for bio-fuel
Objectives and achieved results of BBN project in Lithuania (II)
Objectives Limitations of “Available methods”:
General data, which can be used just for strategic planning only, is obtained
Tactical and operational forest management planning requires facts on the amount of cutting residues and the volumes of timber suitable for fuel on a forest compartment level
Objectives and achieved results of BBN project in Lithuania (II)
Objectives To meet the objectives of BBN, as well
as to have a powerful tool for planning biomass energy potential in the future: New model for estimating the volume of
tree branches suitable for fuel was developed within the frames of BBN by team of external experts
Software for estimating the volume of cutting residues per forest compartment was developed and incorporated into conventional forest management planning techniques
Objectives and achieved results of BBN project in Lithuania (II)
Model (tree branches) Developed by team led by Dr. A. Tebėra
at Kaunas Forest and Environmental Engineering College Intensive field studies, which were carried
out in 2006-2007 Models to evaluate the volume of alive/dead
branches are based on the polynomial functions and take into account main parameters of a single tree – diameter at breast height, height class and age.
Objectives and achieved results of BBN project in Lithuania (II)
Model (tree branches) Bellow is model for pine. Different
models developed for 7 tree species
Objectives and achieved results of BBN project in Lithuania (II)
Model (tree branches) To define the amounts of branches
potentially suitable for bio-fuel, another model is used
Objectives and achieved results of BBN project in Lithuania (II)
Software (compartment-wise estimates) To perform the calculations suitable for forest
management planning a software package, running inside the forest resource information system, was developed
It takes the compartment descriptions from conventional stand-wise inventory data banks
Models the number of trees by species and by diameter classes
Models the volume of dead/alive branches for a single tree and sums up the volumes for whole stand
Divides the total volume of branches into suitable for fuel and required for technological/biodiversity needs
Objectives and achieved results of BBN project in Lithuania (II)
Software (compartment-wise estimates) It works inside the forest resource
information system
Objectives and achieved results of BBN project in Lithuania (II)
Software (compartment-wise estimates)
Objectives and achieved results of BBN project in Lithuania (II)
Output contains volume of branches: total (alive + dead), suitable for fuel, required for technological needs/biodiversity
Testing results and application perspectives Some examples from BBN related
applications Volume of branches was calculated for each
forest compartment of Kaunas county to develop the biomass energy strategy and atlas of biomass resources
This parameter is integrated into conventional forest management planning techniques
A lot of different other applications: mapping, scenarios for the profitability of selling branches for bio-fuel producers, etc.
Objectives and achieved results of BBN project in Lithuania (II)
Testing results and application perspectives
Volume (m3/ha) of branches in the forests of Kaunas county
Objectives and achieved results of BBN project in Lithuania (II)
Testing results and application perspectives Estimation of the amount of branches available from final
felling in Kaunas forest enterprise, a) all compartments, b) total volume of branches per ha, c) total volume of branches available for fuel per ha, d) compartments assigned for final felling, e) total volume of branches available for fuel per ha within compartments assigned for final felling
Objectives and achieved results of BBN project in Lithuania (II)
Testing results and application perspectives The profit in LTL per 1 25x25 m pixel, a) 1st scenario -
costs are function of extraction distance and total amount of branches per are unit, price - 22 LTL/m3 ; b) 2nd scenario - costs 22 LTL/m3 and the price – 25 LTL/m3
Objectives and achieved results of BBN project in Lithuania (II)
Thank You for Your attention!
Objectives and achieved results of BBN project in
Lithuania (II)