Study on The Application of Nature Based Solutions (NBS) for The Mitigation of Coastal Erosion on TPI Tempursari beach Lumajang

Abstract Lumajang has approximately 75 km of coastline, extending from Yosowilangun to Tempursari. Of these, 12 villages have been classified as Coastal villages. It is anticipated that these coastal villages will serve as the primary base for the management of coastal and marine areas. However, the region is subject to coastal erosion, as observed in the case of TPI (Tempat Pelelangan Ikan) Tempursari Beach. The issue of coastal erosion in the TPI Tempursari beach area has not received proper handling and the TPI Tempursari beach area eroded by erosion is quite extensive and severe. In response to this issue, the most common solutions, such as the construction of seawalls and breakwaters, are costly and can have unforeseen consequences for surrounding vulnerable areas. In recent years, this realisation has prompted coastal planners to adopt an alternative approach to the protection of coastal environments, known as Nature-Based Solutions (NBS). Nature-based solutions (NBS) constitute a category of responsive and beneficial responses that enhance long-term ecosystem management through the utilisation of natural processes. To address such issues, natural ecosystems can be restored, modified, rendered more adaptable or integrated. This study, in particular, aims to identify current solutions to the problem of coastal erosion in TPI coastal area using nature-based methods. To this end, it will compile existing best practices and tools to solve the coastal erosion problem occurring in the TPI coastal area. The result of this study will also contribute to the formulation of strategies for the management of the TPI coastal area, thereby facilitating the resolution of coastal erosion issues.