Coastal Protection and Rehabilitation Technology as Climate Mitigation and Adaptation Strategies

Abstract

The north coast of Java Indonesia is an area threatened by erosion due to rising sea levels triggered by climate change. Sayung District, Demak, which experienced severe erosion impacts. Restoring lost sediment is an effective way to stop erosion processes and restore a stable coastline. In this chapter, the strategies of coastal protection carried out are presented with the ultimate goal of restoring the natural defense of the coast, namely, mangroves. The first step is to build a coastal protective building to reduce waves and create calm waters. It will accelerate the sedimentation process so that new sludge-substrate land will be formed that is suitable for mangrove ecosystem growth. This coastal erosion mitigation activity is an effort to increase the resilience of coastal areas from physical aspects that cause deterioration or reduction of coastal functions. The concept of building together with nature has a very high technical, socioeconomic, and environmental feasibility because it is a coastal engineering approach as one of the solutions to the problem of sustainable erosion.

The impact of climate change on coastal erosion in Southeast Asia and the compelling need to establish robust adaptation strategies

“…The climate change-induced rise in sea level caused the coastline to be in danger of erosion disasters and wiped off mangrove habitats and coral reefs due to altered ocean currents by rising sea levels [ 61 , 62 ]. In particular, countries like Indonesia have the largest archipelagic country and the largest covered mangrove plant globally with high diversity, and the Philippines has a coastline of 27000 km 2 coral reefs and 120000ha of mangrove remains, respectively [ 62 ].…”

“…Indonesia was the largest archipelagic country and the largest covered mangrove plant globally with high diversity. The climate change-induced sea level rise caused the coastline at danger of erosion disasters and wiped off mangrove habitats due alters ocean currents by rising sea levels [ 61 ]. From the aspect of governance, it is essential to be clear and regulate the institution responsible in erosion control and especially their management.…”