Studi Perhitungan Jumlah Pohon Jati Berdasarkan Metode Klasifikasi Menggunakan Data Foto Udara

Cahyaningrat, Citra (2019) Studi Perhitungan Jumlah Pohon Jati Berdasarkan Metode Klasifikasi Menggunakan Data Foto Udara. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Menurut Dinas Kehutanan Kabupaten Ngawi pada tahun 2013, kayu jati merupakan komoditi utama Kabupaten Ngawi dengan jumlah produksi kayu sebanyak 14.655,5 m3. Pada tahun 2018, Perhutani menganggarkan dana 10 milliar untuk pembelian pesawat nir-awak untuk monitoring hutan yang meliputi perhitungan jumlah pohon untuk mempercepat proses perencanaan dan pengelolaan hutan. Oleh karena itu, perlu adanya studi perhitungan jumlah pohon jati menggunakan data foto udara. Metode yang dapat digunakan dalam perhitungan jumlah pohon jati dengan cepat dan tepat adalah metode intrepretasi dan klasifikasi. Pada metode interpretasi didapatkan jumlah pohon jati besar sebanyak 5648 pohon dan pohon jati kecil sebanyak 6152 pohon. Pada metode klasifikasi mendapatkan hasil yang jauh berbeda dengan hasil interpretasi. Luas kelas pohon jati besar 24,489 hektar menggunakan metode intepretasi, sedangkan metode klasifikasi 10,837 hektar, sehingga terjadi penurunan 55,75%. Kelas pohon jati kecil memiliki luas 3,719 hektar menggunakan metode intepretasi dan metode klasifikasi dengan luas 8,152 hektar sehingga meningkat 219,2%. Pada kelas pohon mahoni terjadi peningkatan luasan 426,93% dan kelas pohon trembesi menurun 40,63% terhadap hasil perhitungan interpretasi. Hasil uji akurasi metode interpretasi 96,7% dengan indeks kappa 0,96. Sehingga, metode yang disarankan dalam perhitungan jumlah pohon adalah interpretasi.
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In 2013, based on the Forestry Office of Ngawi Regency, teak wood is the main commodity in its regency with the total of wood production 14.655,5 m3. In 2018, Perhutani budgeted 10 billion rupiahs for purchasing an Unmanned Aerial Vehicle (UAV) for forest monitoring – which includes tree counting – to accelerate forests planning and management. However, it still becomes a discourse theory because of the ability limitation of its workers so that until now still done by the field observing that take a lot of time. Methods that can be used for teak tree counting quickly and precisely are an interpretation and classification using aerial photo data. The results of interpretation method is obtained that there are 5648 large teak trees and 6152 small teak trees. The results of classification method, is much different from the result of interpretation method. In interpretation method, the area of the large teak tree 24,489 hectares, meanwhile by using classification method is 10,837 hectares, resulting a decrease 55.75%. By using the interpretation method, the area of the small teak tree class is 3.719 hectares meanwhile by using classification method is obtained 8,152 hectares so that it increases 219.2%. In the mahogany tree class there increased by 426.93% and the trembesi tree class decreased by 40.63% against the results of interpretation method. The results of accuracy test of interpretation method is obtained 96,7% with kappa index 0,96. The method suggested for tree counting is interpretation.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	teak tree, aerial photo, digitation, classification
Subjects:	G Geography. Anthropology. Recreation > G Geography (General) > G70.212 ArcGIS. Geographic information systems. G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing
Divisions:	Faculty of Civil, Environmental, and Geo Engineering > Geomatics Engineering > 29202-(S1) Undergraduate Theses
Depositing User:	Citra Cahyaningrat
Date Deposited:	22 Jul 2026 08:07
Last Modified:	22 Jul 2026 08:07
URI:	http://repository.its.ac.id/id/eprint/65618

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