Analisis Penentuan Zona Konservasi Air Tanah Kota Makassar Dengan Sistem Informasi Geografis (SIG)

Caronge, Muhammad Anshari (2019) Analisis Penentuan Zona Konservasi Air Tanah Kota Makassar Dengan Sistem Informasi Geografis (SIG). Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kota Makassar sebagai salah satu kota besar di Indonesia yang mengalami perkembangan pembangunan yang sangat cepat mengakibatkan penutupan lahan meningkat sehingga infiltrasi air tanah menurun. Selain itu, penggunaan air tanah di Kota Makassar juga sangat tinggi. Tingginya kebutuhan air tanah tersebut akan mengakibatkan eksploitasi air tanah yang menyebabkan turunnya muka air tanah. Dari dua hal tersebut, maka dilakukan penelitian dengan tujuan untuk menentukan lokasi intrusi air laut yang terjadi dan menentukan daerah konservasi air tanah di Kota Makassar. Penelitian ini menggunakan Sistem Informasi Geografis (SIG) dengan metode overlay model union menggunakan data spasial, antara lain peta permeabilitas tanah, peta kelerengan, peta geologi, peta curah hujan, peta tata guna lahan dan peta produktivitas akuifer serta data non spasial, antara lain data kedalaman muka air tanah dan data hasil pemeriksaan laboratorium kualitas air unsur Klorida (Cl). Dari data tersebut dihasilkan peta zona daerah konservasi air tanah dan lokasi intrusi air laut di Kota Makassar. Berdasarkan hasil pengujian kualitas air unsur Cl, telah terjadi intrusi air laut di wilayah pesisir Kota Makassar, yaitu di Kecamatan Tamalate, Kecamatan Panakukang dan Kecamatan Tallo. Selain itu, dapat diketahui pembagian zona konservasi air tanah yang terdiri dari 5 zona, yaitu Zona Aman dengan luas sebaran 110,45 km2 (62,90%), Zona Rawan 33,06 km2 (18,90%), Zona Kritis 25,35 km2 (14,50%), Zona Resapan Air 5,22 km2 (3%), dan Zona Sulit Air 1,23 km2 (0,7%). ================================================================================================ Makassar City as one of the big cities in Indonesia which has experienced rapid development has resulted in increased land cover so that groundwater infiltration decreases. In addition, groundwater used in Makassar is also very high. The high groundwater demand will result in the exploitation of groundwater which causes a decrease in groundwater level. From these two points, the research was conducted with the aim of determining the location of sea water intrusion that occurred and determining the groundwater conservation area in Makassar. This study uses a Geographic Information System (GIS) with the overlay model union method using spatial data, including soil permeability maps, slope maps, geological maps, rainfall maps, land use maps and aquifer productivity maps and non-spatial data, including data groundwater depth and data on laboratory results of chloride (Cl) water quality. From these data, a zone map of the groundwater conservation area and the location of sea water intrusion in Makassar City was determined. Based on the results of testing the quality of Cl elemental water, seawater intrusion has occurred in the coastal areas of Makassar City, namely in the Sub-District of Tamalate, District of Panakukang and District of Tallo. In addition, it can be seen that the distribution of groundwater conservation zones consisting of 5 zones, namely the Safe Zone with an area of 110.45 km2 (62.90%), Prone Zone 33.06 km2 (18.90%), Critical Zone 25, 35 km2 (14.50%), Water Infiltration Zone 5.22 km2 (3%), and Water Difficult Zone 1.23 km2 (0.7%).

Item Type: Thesis (Masters)
Additional Information: RTL 621.367 Car a-1 2019
Uncontrolled Keywords: conservation, exploitation, GIS, groundwater.
Subjects: G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing
T Technology > T Technology (General) > T57.83 Dynamic programming
T Technology > T Technology (General) > T58.5 Information technology. IT--Auditing
T Technology > T Technology (General) > T58.6 Management information systems
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User: Muhammad Anshari Caronge
Date Deposited: 23 Sep 2021 06:56
Last Modified: 23 Sep 2021 06:56
URI: https://repository.its.ac.id/id/eprint/60604

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