Timber transportation using two types of trucks in industrial plantation forests, North Sumatra, Indonesia

PT. Toba Pulp Lestari, Tbk is one of the industrial forestry companies with Eucalyptus as the main species. This research was conducted in a concession area located in Aek Nauli Plantation, Simalungun Regency, North Sumatra with an area of 22,533 Ha. The sample of this research is understorey species (height: 1.5 meters) under Eucalyptus stand in cycles 2, 3, 4 and 5 planted in 2015. To find out the composition of plant species, vegetation analysis was conducted initially by making minimum species-area curves to determine the number of plots. The placement of the sample starts with randomly distributed on plotted paths. The number of plots in each cycle is as many as 32 plots, 32 plots, 32 plots, 4 plots by 256 plots and 5 plots for 32 plots. The results of soil analysis found that secondary metabolic in eucalyptus soil classified into terpenoid which located at a distance of 50 cm (flat) and 100 cm (flat) from the tree at 2 years old Eucalyptus stand. The terpenoids also distributed in distance of 50 cm from trees with flat topography on 4 years old Eucalyptus stand. For 6 years old Eucalyptus stand, terpenoid distributed on 150 cm from a tree and there was also a saponin within 150 cm from a tree with sloping topography. If the dominant undergrowth grows were Strong and Senduduk, the secondary metabolism in the soil will be absorbed by this species.

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Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics

Remote Sensing ◽

10.3390/rs4103058 ◽

2012 ◽

Vol 4 (10) ◽

pp. 3058-3077 ◽

Cited By ~ 15

Author(s):

Shoko Kobayashi ◽

Yoshiharu Omura ◽

Kazadi Sanga-Ngoie ◽

Ragil Widyorini ◽

Shuichi Kawai ◽

...

Keyword(s):

Tree Growth ◽

Polarimetric Sar ◽

Plantation Forests ◽

Industrial Plantation ◽

L Band ◽

The Tropics

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Biodiversity of subterranean termites on the Acacia crassicarpa plantation

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d180445 ◽

2017 ◽

Vol 18 (4) ◽

pp. 1657-1662 ◽

Cited By ~ 1

Author(s):

NOOR FARIKHAH HANEDA ◽

ICHMA YELDHA RETMADHONA ◽

DODI NANDIKA ◽

ARINANA ARINANA

Keyword(s):

Forest Products ◽

Raw Material ◽

Subterranean Termites ◽

Plantation Forest ◽

Processing Industry ◽

Fast Growing ◽

Plantation Forests ◽

Sample Paths ◽

Acacia Crassicarpa ◽

Industrial Plantation

Haneda NF, Retmadhona IY, Nandika D, Arinana. 2017. Biodiversity of subterranean termites on the Acacia crassicarpa plantation. Biodiversitas 18: 1657-1662. The development of industrial plantation forests is one of the efforts to meet the needs of raw material of processing industry of timber forest products. In the last 15 years, the development of industrial plantation forest has grown rapidly. Plant species widely developed is fast-growing plants (fast growing trees) such as Acacia crassicarpa Cunn ex Benth. However, A. crassicarpa has a low resistance against pests, evidenced by the presence of subterranean termites attack occurred in the industrial plantation forest of A. crassicarpa. This aim of the study is to determine the diversity of subterranean termites in plantation forest of A. crassicarpa. Two methods used for data collection: baiting system and survey. Five species of subterranean termites found on sample paths were Coptotermes curvignathus Holmgren, C. gestroi Wasmann, Schedorhinotermes javanicus Kemner, Longipeditermes longipes Haviland, and Pericapritermes mohri Kemner. These species can be distinguished from the morphology of the mandible. Coptotermes is most commonly found Genus in study plots.

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Partitioning and solving large-scale tactical harvest scheduling problems for industrial plantation forests

Canadian Journal of Forest Research ◽

10.1139/cjfr-2019-0425 ◽

2020 ◽

Vol 50 (8) ◽

pp. 811-818

Author(s):

Pedro Bellavenutte ◽

Woodam Chung ◽

Luis Diaz-Balteiro

Keyword(s):

Large Scale ◽

Optimization Procedure ◽

Mixed Integer ◽

Forest Planning ◽

Planning Problem ◽

Optimization Approach ◽

Scheduling Problems ◽

Harvest Scheduling ◽

Plantation Forests ◽

Industrial Plantation

Spatially explicit, tactical forest planning is a necessary but challenging task in the management of plantation forests. It involves harvest scheduling and planning for road access and log transportation over time and space. This combinatorial problem can be formulated into the fixed-charge transportation problem (FCTP), in which the sum of fixed and variable costs is minimized while meeting harvest volume requirements and allowing necessary road maintenance and log hauling activities. The problem can be solved using general optimization methods such as mixed-integer linear programming (MILP), but the computational efficiency of the MILP-based approach quickly drops as the size and complexity of the problem increases. We developed a new optimization procedure that partitions the large planning problem into smaller subproblems. We applied a hybrid optimization approach using both MILP and heuristic rules to efficiently solve the large FCTP that otherwise may not be solvable using traditional methods. We applied our approach to an industrial plantation forest in Brazil. Our applications demonstrate the performance of the new optimization procedure and the benefit of solving large forest planning problems that integrate harvest scheduling with road access and transportation.

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