Legal Literacy - Coastal border is a very important area in maintaining coastal ecosystems and protecting communities from the threat of abrasion. However, this area is often overlooked in coastal area planning and management. According to the Indonesian Central Bureau of Statistics (2024), approximately 70% of Indonesia's coastline is experiencing abrasion, which can threaten the existence of ecosystems and the lives of coastal communities. In this context, the regulation of abrasion-resistant plants is very important to prevent further damage and protect existing natural resources.

Proper management of coastal boundaries not only protects the ecosystem but also provides economic benefits to the community. Abrasion-resistant plants, such as mangroves, have the ability to reduce the impact of ocean waves and strengthen the soil around the coast. Data shows that mangrove planting can reduce wave speed by up to 70% (Nugroho, Setyandito, & Purwanto, 2020). Therefore, it is important for the government and the community to understand the urgency of regulating abrasion-resistant plants as a preventive measure in facing the threat of abrasion.

This paper will discuss various aspects related to the regulation of abrasion-resistant plants, from the definition and importance of coastal boundaries to the challenges and solutions that can be applied. With a better understanding of this issue, it is hoped that a collective awareness will emerge to maintain and protect the often-forgotten coastal boundaries.

Definition of Coastal Border

The coastal boundary is an area located along the coastline that has an important function in maintaining the balance of the coastal ecosystem. According to Presidential Regulation of the Republic of Indonesia Number 51 of 2016, the coastal boundary is designated as an area that should not be used for activities that can damage the environment, such as heavy infrastructure development. This boundary serves as protection for the coastal ecosystem and as a buffer zone to reduce the impact of human activities.

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Coastal boundaries also play a role in maintaining biodiversity. Mangrove forests, for example, are an integral part of coastal boundaries that provide habitat for various species of fish and birds. Data from the Central Statistics Agency (2024) shows that the area of mangrove forests in Indonesia reaches 3.5 million hectares, which contributes greatly to the health of the coastal ecosystem. The presence of abrasion-resistant plants in coastal boundaries also helps in maintaining water quality and reducing pollution.

However, despite its importance, coastal boundaries are often ignored in spatial planning. Many regions allow development in coastal boundaries, which can cause severe environmental damage. Therefore, a better understanding of the definition and function of coastal boundaries needs to be improved so that coastal area management can be carried out sustainably.

The Importance of Regulations for Abrasion-Resistant Plants

The regulation of abrasion-resistant plants is very important in the context of coastal boundary management. Abrasion-resistant plants, such as mangroves, have a natural ability to protect the coast from erosion and abrasion. According to Harahab (2010), mangrove planting not only functions as an abrasion barrier but also as a carbon absorber that helps reduce the impact of climate change. Thus, clear regulations regarding the planting and maintenance of these plants are necessary.

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Data indicates that regions with healthy mangrove forests can reduce the risk of natural disasters, such as tsunamis and floods. A study by Alansori, Nurman, and Syahputra (2022) on Ketapang Beach showed that mangrove planting can reduce the impact of abrasion by up to 60% within one year. This suggests that regulations supporting the planting of abrasion-resistant plants can provide significant protection for coastal communities.

In addition, regulations are also needed to prevent over-exploitation of coastal resources. Many areas are experiencing a decline in mangrove populations due to illegal logging and land conversion for development purposes. Therefore, it is important for the government to implement strict regulations regarding land use in coastal boundaries, as well as provide incentives for communities to participate in the planting and maintenance of abrasion-resistant plants.