Jamhuri Jamaluddin

Universiti Putra Malaysia | UPM · Department of Forest Management

Suitable extraction technique and the least cost while reducing the environmental impact is the primary concern in timber transportation planning in undulate topography. Two types of extraction machines with unique characteristics to be applied in timber harvest area in Malaysia is combined for timber harvesting with the aim each machine will extra...

Mangroves are multifunctional ecosystems providing resource provisions and various ecosystem services critical to the local livelihood and national economy. The anthropogenic activities in the mangrove forest and the threat to these ecosystems remain a daunting and challenging task to the ecologist, especially in the management. This chapter attemp...

Land cover changes are characterised by the loss of natural resources, the loss of forests to urban development or the loss of agricultural areas to urban growth. This study applies the artificial neural network (ANN) method in cellular automata (CA) modelling to predict the changes, pattern and transition matrix of land use and land cover (LULC) c...

Determining a log yard is essential in timber harvesting operational planning. Locating a log yard must be suitable, especially in dry and easily drained areas with an even slope. Since the timber harvesting operation with t he principles of the selective management system (SM S) is restricted within the production of not more than 1000m elevations...

Algorithm is widely used in various areas due to its ability to solve classes of problems. Due to multiple objectives to be met and varied algorithm application in this digital era, addressing the problem-solving optimization in a more efficient and effective way has become more reasonable. Forest transportation planning is one of the most expensiv...

Forests are continuously monitored with advanced optical and radar sensors. Their coverage are analyzed and processed via satellite images to deliver useful information to forest managers and responsible administrators. A remote sensing image processing was performed to analyse recent forest cover losses and extent in Peninsular Malaysia. A forest...

The fragmentation of forests by agricultural expansion, urbanization, and road networks is an ongoing global biodiversity crisis. In Southeast Asia and other tropical regions, wildlife populations are being isolated into pockets of natural habitat surrounded by road networks and monoculture plantations. Mortality from wildlife–vehicle collisions (W...

Timber transportation planning is among the costliest activities in forest operation. Traditionally, the goal of timber transportation planning adopted to determine feasible way to extract high timber volume from the stump site to the final destination. However, modern transportation problems are not driven by the productivity of timber itself, but...

Legal and illegal logging is prevalent throughout the tropics, impacting on natural habitat and wildlife. This study aimed to investigate the sensitivity of forest mammals to selective logging in the lowland dipterocarp forests of South-West Peninsular Malaysia and identify the underlying factors that determine species occurrence. A total of 120 ca...

The Geographically Weighted Regression (GWR) is an example of spatial analysis that used spatial non-stationarity as variables and explains it in details in terms of location. In a two different forest areas; undisturbed and disturbed forest in Peninsular Malaysia, we studied the relationship between wildlife richness with landscape factors as expl...

When an individual or large clumps of trees are removed from a forest, a hole is formed in the forest canopy. Trees may be removed due to harvesting, or because they are damaged by wildfire or diseases, or succumb to old age. The resulting hole in the canopy is known as a 'light gap' because more direct sunlight reaches the forest floor in contrast...

The Geographically Weighted Regression (GWR) is an example of spatial analysis that used spatial non-stationarity as variables and explains it in details. In a two different forest areas; undisturbed and disturbed forest in Peninsular Malaysia, we studied the relationship between wildlife richness with landscape factors. Total of 120 camera traps i...

GWR-PM has been developed exclusively for decision makers in Peninsular Malaysia and the purpose is to provide them with additional flexibility in analysing spatial variation. While GWR extension analysis in ArcMap application has a universal coordinate system, GWR-PM is specifically designed with Peninsular Malaysia's coordinate system of Kertau R...