Abrasion on the South Beach of Bali is getting worse, up to 30 meters

Denpasar, CNN Indonesia —

Whole Beach from Bali has undergone abrasion or coastline retreat since the 1980s. More severe abrasion has occurred on the southern coastline of Bali.

The southern coastline stretches from the districts of Klungkung, Gianyar, Denpasar, Badung, Tabanan and Jembrana, Bali.

“Yes, it’s true and indeed the abrasion condition has been going on for quite a long time,” said Made Denny Setya Wijaya as Head of the Specific Non-Vertical Unit (SNVT) Implementing the Bali-Penida BWS Water Source Network (PJSA) when contacted, Wednesday (29/9).

“On the coast of Bali, in 1980, the abrasion began to run little by little. (Across) the coast of Bali. Yes, it is only dominant in the southern (part) coast,” he added.

He explained that the size of the coastline retreat or abrasion on the Bali coast varies because each beach has a specific location and different characteristics.

“So, we can’t say how many meters it is because it is relatively dependent on the location,” he said.

Based on serial data from 1980 to 2000, abrasion on Bali Beach varies in certain areas or locations, including Kuta Beach.

“The decline in the coastline or abrasion from the 1980s has already occurred. It’s just that spots in certain areas on Kuta Beach have occurred. Then, recently in the 2000s, there have been more developments in other areas with of course more setbacks. bad,” he said.

“Yes, it varies, maybe the most extreme can be up to 30 meters backward from the coastline. From 1980 to 1990. If (2020-2021) it seems very short. in 2000 with a 10-year span, it feels like the image (abrasion) will be visible,” he said.

He again mentioned that relatively severe abrasion beaches are on the South Coast of Bali, starting from Klungkung, Gianyar and around Denpasar.

“Including Kuta and Tabanan to Jembarana. So, the South Coast of Bali has the potential to have quite severe abrasion,” he said.

Indications of the coast being severely affected by abrasion, if previously in the coastal area there were trees and buildings that were not hit by the waves of the sea, now they have been affected by the sea waves. If left unchecked can be dangerous for the area.

“It’s easiest for us to see. For example, what used to be trees that were not hit by the waves are now being affected. This is called the destructive power of water, so it’s also dangerous if left unchecked. It must be handled,” he said.

According to him, there are two factors that cause abrasion on the coast of Bali. First, because there is human intervention and second because of natural factors. Human intervention, for example, such as the development in the coastal area and then the movement of sediment.

“We will know at a certain wind season, that sand will come and a certain season the sand will also disappear. That is a dynamic condition, a normal one. will affect the surrounding abrasion,” he said.

Meanwhile, for natural factors, climate change occurs in the monsoon season. Thus, a tropical cyclone occurs and triggers the movement of waves.

“This of course triggers the movement of waves or currents that are quite large. And often have an impact on areas on the coast,” said Denny.

(kdf/gil)

[Gambas:Video CNN]


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