Last modified: 2022-12-01
Abstract
Based on a study by the Ministry of BAPPENAS in the Technocratic Draft of the 2020-2024 National Medium Term Development Plan, it states that there will be an increase in water scarcity on the islands of Java, Bali and Nusa Tenggara with a prediction of an increase in the area of the water crisis in 2030 by 6.0% increasing to 9. 6% in 2045. So that strategic steps are needed as preventive efforts through water resource activities, where springs are the main priority that must be protected considering their existence as a source of clean water that supports various aspects of life. One of the areas experiencing this threat is Semarang City, which is the center of development and economy in Central Java with an increasing population and high land conversion. Efforts made to protect springs were carried out starting with an inventory of springs in the city of Semarang. The results showed that there were 71 springs that were inventoried in Semarang City which were distributed in 7 sub-districts with the most distribution being in Mijen District. Based on the results of the field survey, 43.6% of the springs are in clear condition which is used by the majority of the population (56.33%) to meet their daily needs, while about 25.35% of the springs are not used, which is more due to the small discharge or the water is cloudy. Furthermore, based on the discharge, about 42.25% of the springs have a discharge between 1 – 10 liters/second, as many as 3 springs (4.22%) have a flowrate above 50 liters/second and 11 springs (15.49%) for the time being. This is no longer in production or the discharge is very small. Meanwhile, if assessed from the level of sustainability of the surrounding land use, it shows that about 53.52% of the springs have a high level of sustainability with the use of surrounding land in the form of vegetation and 21.12% have a low level of sustainability because the springs are located around residential areas so that the water infiltration is relatively low.