Jurnal Geografi 16(2) (2019) 90-96
JURNAL GEOGRAFI
https://journal.unnes.ac.id/nju/index.php/JG
Perbandingan Metode Supervised Classification dan Unsupervised Classification terhadap Penutup Lahan di Kabupaten Buleleng
Rosi Septiani
*1, I Putu Ananda Citra
2, A Sediyo Adi Nugraha
31,2 Program Studi Pendidikan Geografi, Jurusan Geografi,
3 Fakultas Hukum dan Ilmu Sosial, Universitas Pendidikan GaneshaSingaraja, Indonesia
Article Info Abstrak
Article History
Submitted 30 April 2019 Accepted 25 Juli 2019 Publish 31 Juli 2019
Penelitian ini dilaksanakan di Kabupaten Buleleng menggunakan citra Landsat 8 OLI/
TIRS (Operational Land Imager/ Thermal Infrared Sensor), dengan tujuan untuk (1) mendeskripsikan metode supervised classification terhadap klasifikasi penutup lahan, (2) mendeskripsikan metode unsupervised classification terhadap klasifikasi penutup lahan, dan (3) membandingkan tingkat akurasi metode supervised classification dengan unsupervised classification terhadap klasifikasi penutup lahan. Metode yang diguna- kan yaitu metode komparatif dengan membandingkan metode supervised classification dengan unsupervised classification terhadap penutup lahan di Kabupaten Buleleng.
Hasil penelitian menunjukkan bahwa (1) diperoleh delapan kelas penutup lahan pada metode supervised classification yang ditentukan oleh pengambilan training area, (2) diperoleh delapan kelas penutup lahan pada metode unsupervised classification yang ditentukan dengan memberikan nilai range statistik, dan (3) tingkat akurasi yang ter- tinggi dimiliki oleh metode supervised classification yaitu maximum likelihood dengan nilai overall accuracy sebesar 92% dibandingkan dengan metode unsupervised classi- fication (k-means dan ISODATA) yang memiliki nilai overall accuracy yaitu 82,07%.
Kesimpulannya adalah untuk deteksi klasifikasi penutup lahan metode yang paling baik dilakukan di Kabupaten Buleleng yaitu supervised classification dengan metode max- imum likelihood.
Keywords:
citra landsat 8; supervised classification; unsupervised classification; penutup lahan
Abstract
This study was conducted in Buleleng Regency using Landsat 8 OLI/TIRS imagery (Operational Land Imager/ Thermal Infrared Sensor), with the aim of (1) describing the supervised classifica- tion method for land cover classification, (2) describe the method of unsupervised classification on the classification of land cover, and (3) compare the level of accuracy of the supervised classifica- tion method and unsupervised classification on the classification of land cover. The method used is a comparative method by comparing the supervised classification method with unsupervised classification of land cover in Buleleng Regency. The results showed that (1) eight land cover clas- ses were obtained in the supervised classification method determined by the taking of the training area, (2) eight land cover classes were obtained in the unsupervised classification method determi- ned by providing statistical range values, and (3) the accuracy level the highest is owned by the supervised classification method, namely maximum likelihood with the overall accuracy value of 92% compared to the unsupervised classification method (k-means and ISODATA) which has the overall accuracy value of 82,07%. The conclusion is that the detection of land cover classification method that is best done in Buleleng Regency is the supervised classification with the maximum likelihood method.
© 2019 The Authors. Published by UNNES. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
p-ISSN 2549-3078 e-ISSN 2549-3094 DOI 10.15294/jg.v16i2.19777
* E-mail : [email protected]
Address : Jl. Sesetan No.196 Sesetan, Pedungan, Kec. Denpasar Sel., Kota Denpasar, Bali 80223
Jurnal Geografi 16(2) (2019) 145-152
JURNAL GEOGRAFI
https://journal.unnes.ac.id/nju/index.php/JG
Identifikasi Potensi dan Permasalahan Lahan untuk Arahan Manajemen Lahan (Studi Kasus Penggal Sungai Cemoro Sebagian Kawasan Situs Sangiran)
Irfani Prabaningrum
*1, Aida Mardiana
2, Artha Gumilar
3, Awanda Sistia Risky
4, Herjuna Wiratama
5, Hendrikus Rizky Visanto Putro
6, Rizka Dwi Amalia
7, Sri Kumala Ningrum
81,2,3,4,5,6,7,8 Fakultas Geografi, Universitas Gadjah Mada, Indonesia
Article Info Abstrak
Article History
Submitted 1 July 2019 Accepted 25 July 2019 Publish 31 July 2019
Kawasan Situs Sangiran yang telah ditetapkan sebagai situs warisan dunia diharapkan mampu melestarikan jasa ekosistem berupa jasa kultural yang terdapat di kawasan ter- sebut mengingat banyaknya penemuan fosil dan artefak berharga lainnya. Kawasan Situs Sangiran juga memiliki jasa penyediaan berupa sumberdaya lahan untuk meme- nuhi kebutuhan hidup masyarakat di sekitarnya. Lahan yang dilindungi secara kultural dan dimanfaatkan oleh masyarakat memerlukan adanya evaluasi lahan untuk menge- tahui potensi dan permasalahannya. Penelitian ini bertujuan untuk mengidentifikasi potensi dan permasalahan lahan yang terdapat di Kawasan Situs Sangiran. Metode yang digunakan dalam penelitian ini adalah evaluasi lahan menggunakan Indeks Po- tensi Lahan (IPL) berbasis bentuklahan yang dikaji dari sudut pandang geografi. Hasil penelitian menunjukkan bahwa terdapat tiga klasifikasi potensi lahan, yaitu kelas po- tensi rendah 67.09% atau 13,5 km2, kelas sedang 32% atau 6,52 km2, dan kelas sangat rendah 1% atau 0.11 km2. Guna meningkatkan potensi lahan maka terdapat bebera- pa arahan manajemen lahan seperti optimalisasi tanaman buah dan perancangan tur wisata edukasi. Sementara untuk mengatasi permasalahannya dilakukan manajemen konservasi lahan dengan menggunakan metode vegetatif maupun mekanik.
Keywords:
potensi lahan; permasalahan lahan; kawasan situs Sangiran land potency; land problems;
Sangiran site area
Abstract
The Sangiran site area has been designated as a World Heritage site is expected to preserve the cul- tural services that are found in the region to remember many fossil discoveries and other valuable artifacts. Sangiran site area also has provision services in the form of land resources to meet the living needs of the surrounding communities. Culturally protected and utilized land by commu- nity requires an evaluation to determine its potency and problems. This research aims to identify the potency and problems of land in the Sangiran site area. The method used in the study is land evaluation using the Land Potency Index based on landform which is examined from a geographi- cal point of view. The results showed that there were three classification of land potency, namely low class 67.09% or 13.5 km2, medium class 32% or 6.52 km2, and very low class 1% or 0.11 km2. In order to increase the land potency, there are several directives for land management such as optimizing fruit crops and designing educational tourism tours. Meanwhile, to overcome land problems, land conservation management is carried out using vegetative and mechanical methods.
© 2019 The Authors. Published by UNNES. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
p-ISSN 2549-3078 e-ISSN 2549-3094 DOI 10.15294/jg.v16i2.20885
* E-mail : [email protected]
Address : Bulaksumur, Caturtunggal, Kec. Depok,
Kabupaten Sleman, Daerah Istimewa Yogyakarta 55281
Spatial Planning and Community Involvement of Ecovillage
Settlements in Tibang Village, Banda Aceh City
Submission date: 25-Sep-2020 05:03PM (UTC+0700) Submission ID: 1396672072
File name: of_Ecovillage_Settlements_in_Tibang_Village,_Banda_Aceh_City.pdf (543.23K) Word count: 4235
Character count: 22763
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