Analisis kawasan hutan dan tutupan hutan pada tiga daerah aliran sungai di Kabupaten Manokwari
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Abstract
Law number 41 of 1999 concerning Forestry mandates to maintain the area of forest area and forest cover for each rivers at least 30% of the total area, with a proportional distribution. The purpose of this study was to determine the area and percentage of the area and forest cover in the three watersheds, Arui, Prafi, and Wosi, in Manokwari District, analyze the composition, distribution, and changes in the area and forest cover, and describe the factors that influence these changes. this uses descriptive methods with quantitative analysis techniques. Data collection and analysis is done spatially using ArcGIS / ArcMap 10.1 software. The research variables consisted of area and forest cover in the watershed, composition, distribution, and change in the area and forest cover, area of forest cover inside and outside the area expressed in hectares (ha) and percent (%), as well as factors that influence changes in the area and forest cover. The results showed that until 2016, the percentage of forest area to the total watershed for the two watersheds (Arui and Prafi) was still above 30%, while the Wosi watershed was only 14.79%, but the percentage of forest cover for the three watersheds was still above 30% The composition of the Arui and Prafi Watershed Forest Areas is dominated by Permanent Forests, whereas the Wosi Watershed is dominated by convertible Production Forests. In the Arui and Prafi watersheds, the distribution of the forest area is more concentrated in the upstream area and is dominated by primary forest, while the Wosi watershed is only in a portion of the upstream area with a predominance of secondary forest. During 2006 - 2016, the largest deforestation occurred in the Arui watershed (4.71% at a rate of 121.80 ha / year), conversely the highest forest degradation occurred in the Wosi watershed (39% at a rate of 5.31 ha / year). The dominant factor causing the change in the area in the three watersheds is thought to be a factor in partial change of forest area designation and Changes in Spatial Planning for the Provinces of West Papua and Manokwari in 2013-2033. Furthermore, population growth and land conversion to oil palm plantations, both by companies and communities, are the dominant factors causing deforestation.
References
BPS Kabupaten Manokwari. 2016. Ka-bupaten Pegunungan Arfak dalam Angka Tahun 2016. Manokwari
BPS Kabupaten Manokwari. 2017. Ka-bupaten Manokwari dalam Angka Tahun 2017. Manokwari
Direktorat Inventarisasi dan Pemantauan Sumber Daya Hutan. 2015. Deforestasi Indonesia Tahun 2012 – 2013. Kementerian Lingkungan Hidup dan Kehutanan. Jakarta.
FWI/GFW. 2001. Keadaan Hutan Indonesia. Indonesia: Forest Watch Indonesia dan Washington D.C.: Global Forest Watch. Bogor.
https://manokwarikab.bps.go.id/dynamictable/2016/03/22/58/penduduk-dirinci-menurut-distrik-tahun-2005---2015.html [Diakses Februari 2018]
Iskandar, Silalahi, M. D., Hasan, D., dan Nurlinda, I. 2011. Kebijakan Perubahan Kawasan Hutan dalam Pengelolaan Berkelanjutan. UNPAD Press. Bandung.
Kadir, S. 2015. Penutupan Lahan untuk Pengendalian Tingkat Kekritisan DAS Satui,Provinsi Kalimantan Selatan. Proseding Seminar Nasio-nal Masyarakat Biodiversity Indonesia. Volume 1, Nomor 3, Juni 2015.
Khasanah K, Mulyoutami E, Ekadinata A, Asmawan T, Tanika L, Said Z, van Noordwijk M, and Leimona B. 2010. Kaji Cepat Hidrologi di Daerah Aliran Sungai Krueng Peusangan, NAD, Sumatra. Working paper nr.122. Bogor, Indonesia. World Agroforestry Centre.55p. DOI 10.5716/WP10 337.
Maryani, R., Iis, A., Wicaksono D., Suka, A. P., hakim, I., Rohmanu-din, J., dan Effendi, R. 2014. Sintesis Riset Integratif. Manaje-men Lanskap Hutan Berbasis DAS. Pusat Penelitian dan Pe-ngembangan Perubahan Iklim dan Kebijakan Kementerian Lingku-ngan Hidup dan Kehutanan. Bogor.
Mulyana, N. 2012. Analisis Luas Tutupan Hutan terhadap Keter-sediaan Green Water dan Blue Water di Sub Das Gumbasa dan Sub Das Cisadane Hulu dengan Aplikasi Model Swat. Disertasi. Sekolah Pasca Sarjana IPB Bogor.
Paimin, Pramono, I. B., Purwanto, dan Indrawati D. R. 2012. Sistem Perencanaan Pengelolaan Daerah Aliran Sungai. Pusat Penelitian dan Pengembangan Konservasi dan Rehabilitasi (P3KR). Kemen-terian Kehutanan. Bogor
Peraturan Pemerintah RI Nomor 44 Tahun 2004 tentang Sistem Peren-canaan Kehutanan.
Peraturan Pemerintah RI Nomor 28 Tahun 2011 tentang Pengelolaan Kawasan Suaka Alam dan Kawa-san Pelestarian Alam.
Peraturan Pemerintah RI Nomor 37 Tahun 2012 tentang Pengelolaan Daerah Aliran Sungai.
Peraturan Pemerintah RI Nomor 104 Tahun 2015 tentang Tata Cara Perubahan Peruntukan dan Fungsi Kawasan Hutan.
Pramono, I. B., dan Wahyuningrum N. 2010. Luas Optimal Hutan Jati sebagai Pengatur Tata Air di Daerah Aliran Sungai (DAS) Berbahan Induk Kapur. Jurnal Lit.HKA. Vol VII. No.5. Bogor
Pramono, I.B., dan Wijaya, W. W. 2013. Hubungan antara Hutan Pinus dan Aliran Dasar di Sub DAS Kedung Bulus, Kebumen. Prosiding Seminar Nasional Hasil Penelitian Teknologi Pengelolaan DAS. Pusat Penelitian dan Pengembangan Konservasi dan Rehabilitasi (P3KR). Surakarta.
Prasetyo, L.B. 2004. Deforstasi dan Degradasi Lahan DAS Citanduy. Pusat Studi Pembanguan, IPB. Bogor.
Sunandar, A. D. 2014. Penentuan Luas Hutan Optimal Ditinjau dari Respon Hidrologis di DAS Asahan. Disertasi. Sekolah Pasca Sarjana IPB Bogor.
Sunderlin, W. D., dan Resosudarmo I. A. P., 1997. Laju dan Penyebab Deforestasi di Indonesia: Penela-ahan Kerancuan dan Penyebabnya. Occasional Paper No. 9 (i). CIFOR. Bogor
Todaro, M.P dan Simith, S.C 2004. Pembangunan Ekonomi di Dunia Ketiga. Edisi Kedelapan. Alih Bahasa: Haris Mundandar, Puji, A.L. Editor: Wisnu C. Kritiaji. Jilid 1. Erlangga. Jakarta
Undang-Undang RI Nomor 41 Tahun 1999 tentang Kehutanan.
Wibowo, A., dan Ginting N.,A., 2010. Degradasi dan Upaya Pelestarian Hutan. Membalik Kecenderungan Degradasi Sumber Daya Lahan dan Air. IPB Press. Bogor.
