Yonvitner’s appointment as IPB professor explains the potential loss of coastal resources due to climate change

MidLand, Jakarta – Expert in the science of coastal and marine resource management, Yonvitner has just been confirmed as a permanent professor at the Faculty of Fisheries and Marine Sciences, Bogor Agricultural Institute (IPB). Yonvitner delivered a scientific oration entitled Risk-based Management of Coasts, Seas and Small Islands as his inaugural address in Bogor, West Java, on Saturday, January 27, 2024.

Yonvitner explained this problem climate change it is the biggest threat in the modern world, also derivatives risk can threaten at any time. He added that inadequate development policies could lead to serious risks to coastal and marine areas, such as tidal flooding and land subsidence.

“Beyond that, there is also the risk of biodiversity loss, island vulnerability, plastic waste, fishery resource vulnerability, investment risks and resulting poverty,” said the man born in 50 City Regency, West Sumatra aged 49 does.

Yonvitner also explained the potential economic losses due to climate change. “The estimated potential value of losses reaches IDR 110.4-577 trillion due to climate change alone, when combined with losses due to ecosystem damage is estimated at IDR 4,328.4 trillion,” she said.

It further explained that damage to coastal ecosystems could reach losses of 31.7%, losses due to hydrometeorological disasters could reach 30.8% and the impact of losses on primary needs (water, energy and food) could reach 30.8% of gross domestic product (GDP). ). ) in 2020, which reached IDR 15,434 trillion.

In his scientific speech, Yonvitner also explained Indonesia’s natural biodiversity. Indonesia is the largest archipelagic country with 17,504 islands connected by sea, 6.4 million km² of water surface, with 108 thousand km² of coastline, 290 thousand km² of land area and is a national power.

Large natural resource potential includes 12 million tonnes of fish per year, 293 thousand hectares of seagrass potential, 3.4 million hectares of mangroves and 2.52 million hectares of coral reefs, with an estimated economic potential of $3.1 trillion and approximately $45 million job opportunities.

Announcement

Yonvitner explained that the impact of climate change at the biome scale, changes in mangroves could reach 967,000-1,693,000 hectares, with an estimated loss value of between IDR 1,837.1 and 3,217.5 trillion or the equivalent of 24.8-43.5% of GDP. On top of that, damage to coral reefs could reach 377,679 hectares (15%), with an estimated impact value of IDR 1,303.8 trillion.

Additionally, seagrass beds were estimated to have been damaged by approximately 7%, with an estimated damage value of 20,542 hectares (0.08%) with an estimated impact value of 5.8 trillion. Meanwhile, a rise in sea level height of 0.35-0.8 meters leads to potential economic losses of up to IDR 1.3 trillion per hectare each year on productive land.

An increase of 0.01 meters/year in coastal areas leads to potential economic losses of IDR 6.1 trillion. Meanwhile, a rise in sea levels due to extreme events causing coastal flooding can cause economic losses of between IDR 424 billion and IDR 2.7 trillion.

Based on this data, according to Yonvitner, it shows the area it coststhe sea and small islands are risk areas that should attract the government’s attention.

Risk in coastal areas is a function of sensitivity, vulnerability, exposure to resources, the environment and society. According to him, a series of regulations in the form of laws, government regulations and ministerial regulations are actually sufficient as capital and basis for the development of coastal areas, seas, small islands and fisheries. “Only the implementation of sustainable coastal and marine development needs to be optimized,” he said.

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