Page 585 - Trends in Science and Technology fo Sustainable Living

546 Fakultas Sains dan Teknologi
Universitas Terbuka (2023)

1975, 1998–2000, and 2020-2022, had an impact on a drastic decline
in sea salt harvests on Madura Island, although not to the point of
causing sea salt crop failure (Bramawanto & Suaydhi, 2023).

Figure 5. Partial Correlation of Rainfall and Number of Rainy Days to
Salt Yields in Cirebon

In the last eleven years, the highest salt harvest only occurred
in 2015 and set a record for the most increased salt production at
the district level. However, there are indications of other factors,
such as non-technical factors, which have more influence on sea
salt yields in Cirebon. This condition can be seen from the harvest,
which did not increase significantly even though rainfall and rainy
days were low in 2018 and 2019. As a comparison, the location of
the salt center closest to Cirebon, namely Indramayu, experienced
a significant sea salt harvest increase in 2018 and 2019 (Figure 5).
Dry conditions occurred in 2018 and 2019, optimally utilized by salt
farmers in Indramayu, shown by production results similar to 2014-
2015. Further research is needed to study the anomaly that has
affected the low salt yields in Cirebon in the last 5-6 years.