Abstract
Limboto Lake in Gorontalo Province has been around since 1932 with an area of ± 7,000 Ha. In 1991 the area of the lake shrank to ± 3,644.5 Ha and in 2017 the area of the lake again declined to ± 2,693.9 Ha. The purpose of this research was to identify the type of change in lake land use into non-lake land and the process of changing land use around Limboto Lake. The method used is an overlay analysis of regional Landsat imagery maps around Lake Limboto using the Geographic Information System (GIS) and then described descriptively qualitatively to explain the types and processes of land use change around Limboto Lake from 1991 to 2017. Methods of data collection are secondary data studies related maps of Landsat area images around Limboto Lake in 1991, 2001, 2015, and 2017 and also field observations and interviews to clarify changes in land use that occurred around Limboto Lake from 1991 - 2017. The results of this research indicate that within 26 years (1991 - 2017), there has been a change in the use of lake land around Limboto Lake in the amount of ± 936.56 Ha to agricultural and plantation land, ± 14.29 Ha to become residential land, and ± 0.35 Ha to become a tourist area. The process of changing the physical land use around Limboto Lake, namely: (1) lake land is turned into swamps and then turned into agricultural land (wetlands and dry land) and plantations (coconut); (2) the lake area becomes swamps and then becomes agricultural land (wetlands and dry land) and then turns into residential land; (3) lake land changes into residential land; and (4) lake land directly turns into a tourist area. Keywords: Gorontalo Regency, Limboto Lake Depreciation, Land Use Changes
Highlights
Limboto Lake in Gorontalo Province has been around since 1932 with an area of ± 7,000 Ha
The purpose of this research was to identify the type of change in lake land use into non-lake land and the process of changing land use around Limboto Lake
Methods of data collection are secondary data studies related maps of Landsat area images around Limboto Lake in 1991, 2001, 2015, and 2017 and field observations and interviews to clarify changes in land use that occurred around Limboto Lake from 1991 - 2017
Summary
Danau Limboto di Kabupaten Gorontalo telah ada sejak tahun 1932 dengan luas ±7.000 Ha. Pada tahun 1991 luas danau menyusut menjadi ±3.644,5 Ha dan tahun 2017 luas danau kembali mengalami penyusutan menjadi ±2.693,9 Ha. Tujuan penelitian ini adalah untuk mengidentifikasi jenis perubahan penggunaan lahan danau menjadi lahan bukan danau dan proses perubahan penggunaan lahan di sekitar Danau Limboto. Metode yang digunakan yaitu analisis overlay peta citra Landsat kawasan sekitar Danau Limboto menggunakan Sistem Informasi Geografis (SIG) kemudian dijelaskan secara deskriptif kualitatif untuk menjelaskan jenis dan proses perubahan penggunaan lahan disekitar Danau Limboto dari tahun 1991 sampai dengan 2017. Hasil penelitian ini menunjukkan bahwa dalam kurun waktu 26 tahun (1991 – 2017), telah terjadi perubahan penggunaan lahan danau di sekitar Danau Limboto sebesar ±936,56 Ha menjadi lahan pertanian dan perkebunan, ±14,29 Ha menjadi lahan permukiman, dan ±0,35 Ha menjadi kawasan wisata. Kata Kunci: Kabupaten Gorontalo, Penyusutan Danau Limboto, Perubahan Penggunaan Lahan
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