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by AKMAR ANNUAR
MALAYSIA has begun nationwide slope-risk mapping covering key agricultural and highland areas as the government steps up geological safeguards amid growing concern over mud floods and landslides linked to monoculture farming on steep terrain.
In Parliament today, Natural Resources and Environmental Sustainability Minister Datuk Seri Arthur Joseph Kurup (picture) said the ministry, through the Minerals and Geoscience Department Malaysia (JMG), has proactively mapped areas with potential landslide risks nationwide, covering about 2,966 square kilometres, including active highland farming zones.
He was responding to a question from Kubang Kerian MP Datuk Seri Tuan Ibrahim Tuan Man, who asked whether the government would implement comprehensive mapping of monoculture plantations by slope gradient to assess mud flood and landslide risks, drawing lessons from the West Sumatra tragedy in November 2025.
“The ministry has taken proactive steps by mapping landslide-prone areas nationwide, covering approximately 2,966 square kilometres, including active highland agricultural zones such as Cameron Highlands and Kundasang,” Arthur said, adding that the effort is meant to strengthen development planning and integrated slope management.
He said the mapping outcomes are translated into Slope Hazard and Risk Maps (PBRC), which are shared with planning and implementing agencies such as PlanMalaysia and the Agriculture Department to support safer, more orderly and sustainable land use planning.
The PBRC serves as a strategic reference for early preventive measures, routine slope maintenance, determining locations for landslide early warning systems and strengthening land-use controls by relevant agencies, particularly in areas exposed to geological risks.
Arthur said two types of PBRC have been developed so far — linear-based and area-based maps — with responsibilities split between agencies to ensure comprehensive coverage.
The Public Works Department prepares linear-based maps for federal roads in Peninsular Malaysia, while JMG produces area-based maps for locations beyond roads and highways.
“This division of roles ensures mapping coverage is comprehensive, structured and complementary in supporting safer and more sustainable slope management and development planning,” he said.
Arthur added that regulatory controls are reinforced through mandatory environmental impact assessments (EIA) for agricultural and plantation activities classified under the Environmental Quality (Prescribed Activities) (Environmental Impact Assessment) Order 2015, ensuring projects are evaluated thoroughly before approval.
He said JMG and the Department of Environment also play an active role by providing technical reviews at the local authority one-stop centre (OSC) level, aimed at ensuring plantation and agricultural development proceeds in a planned, safe and sustainable manner.
On proposals for comprehensive mapping of plantation activities on steep slopes, Arthur said NRES remains ready to provide technical advisory services to other ministries and agencies, particularly in identifying geological disaster risks linked to land use decisions.
The post NRES maps high-risk slopes as MPs press for tighter checks on hill farming appeared first on The Malaysian Reserve.