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1 2023

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Geographic Information System for Mapping Coastal Inundation Impact to the Sustainability of Agriculture Sector in Pekalongan City, Indonesia

Suharini Erni, Pratiwi Elok Surya, Hanafi Fahrudin

Ecological Engineering & Environmental Technology

2023

Vol. 24, iss. 3

114--119

Coastal inundation that is getting farther inland year by year has given a serious problem to the sustainability of farming activities in Pekalongan, but it has rarely been exposed more detail to the public. The aim of this research is to investigate the present effects of seawater inundation to the agriculture sector in Pekalongan coastal area. We focused on the study of coastal inundation dynamics, agriculture area reduction and rice production. Time series remote sensing imageries from google earth satellite were used to analyze the seawater run up between 2003 and 2018. This result revealed that the farthest distance of the inundation in 2018 reached 4.4 kilometers from the coastline in the west part of the city. For the last fifteen years, saline water has reduced almost 380 ha of farm land in the coastal area. That phenomenon has contributed to the rice production lost by almost 173 tons/year during 2003 and 2018. This result has showed a critical condition of agriculture sector in study area, thus some mitigation actions become a necessity thing in order to protect our land as well as food security on the next future.