Jakarta, hitclubapk3 Indonesia
—
Professor of the Faculty of Forestry and Environment, Bogor Agricultural Institute (
IPB
) Prof Dr Ir Bambang Hero Saharjo, MAgr stated that piles of logs found at landslide and flash flood disaster sites in Sumatra showed indications of human activity involvement.
Prof. Bambang, who is also the Head of the Center for Disaster Studies at IPB University, emphasized that this condition cannot be fully explained as rotting wood or the impact of natural collapse, he said, according to information obtained from IPB University, Bogor City, Friday.
In his explanation, Prof. Bambang linked these findings to a similar case he had handled several years ago in a protected area in North Sumatra.
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He described that forests that are still healthy have a dense and multi-tiered canopy structure, so they are able to break down and retain the flow of rainwater.
“Even though there is water, it doesn’t go straight to the surface. It falls in the canopy, breaks, then some of it flows through the stem or stem flow,” he explained.
Prof. Bambang added that the presence of undergrowth and litter plays an important role in absorbing water and maintaining the stability of the forest ecosystem.
The tiered vegetation layers, from the upper canopy to the lower vegetation, are a natural buffer system that maintains environmental balance.
“God created this of course for the good of humans and the environment,” said Prof Bambang.
Prof. Bambang said that the fall of one or two trees in natural conditions is not a threat to the ecosystem.
“This tree, yes, even if it falls, it won’t be many. At least one or two, and that’s natural,” he said.
Prof. Bambang explained that the strong root system of old trees keeps the forest stable, and when one tree falls, the empty space is immediately filled by the regeneration of new species.
According to Prof. Bambang, problems arise when illegal logging activities enter forest areas.Disruption of vegetation removes canopy density and opens gaps that trigger drastic changes in water flow and soil stability.
“In conditions like this, when illegal logging enters, the gaps between the canopies open up,” he said.
According to Prof. Bambang, the loss of canopy function causes rainwater to fall directly to the ground surface without a natural breakdown process, so that erosion occurs more quickly and the risk of landslides increases.
“The large logs found after the disaster were a consequence of damage to vegetation layers due to human activities,” he said.
(between/gil)
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