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)