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ABSTRACT
ELY HANNA BR SEMBIRING : The Mapping of Suren Rods Health (Toona sinensis) at Arboretum Balai Penelitian and Pengembangan Lingkungan Hidup and Kehutanan Aek Nauli, Sumatera Utara. Under the guidance of SITI LATIFAH and RIDWANTI BATUBARA.
The needs of wood’s industry is increasing every year, while the forest is not able to fulfil it. It is needed a fast growing to fulfil the needs of the industry one of them is suren. Suren (Toona sinensis) not only has many benefits but it also has high price. That is the reason the researcher did this research at Arboretum BP2LHK, which is about 3 Ha. Data were taken by using survey method and census. The analysis of the data was done by using Forest Health Monitoring (FHM) and the results were mapped by by using software ArcGis 10.1. It was showed that the damage of Suren at Arboretum BP2LHK was categorized into health class with the achievement index value about 4,93. There were 9 types of damages and it was dominated by the broken branches which was about 28,72%. It was found that rods of the Suren at the broken branches were the highest which was about 29%.
Key words: Suren, arboretum BP2LHK, rods health, FHM, ArcGis 10.1
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ABSTRAK
ELY HANNA BR SEMBIRING: Pemetaan Kesehatan Tegakan Suren (Toona sinensis) di Arboretum Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Aek Nauli, Sumatera Utara. Dibawah bimbingan SITI LATIFAH dan RIDWANTI BATUBARA.
Kebutuhan kayu perindustrian setiap tahun meningkat, sedangkan hutan tidak mampu lagi mencukupinya. Dibutuhkan tanaman fast growing untuk memenuhi kebutuhan perindustrian salah satunya adalah suren. Suren (Toona sinensis) memiliki banyak manfaat dan kayunya bernilai jual tinggi. Untuk itu perlu dilakukan analisis kesehatan tegakan suren untuk menjaga kualitas kayunya. Penelitian ini dilakukan di Arboretum BP2LHK dengan luas 3 Ha. Pangambilan data dilakukan dengan metode survei secara sensus. Pengolahan data dilakukan dengan metode Forest Health Monitoring (FHM). Hasil analisis data kemudian dipetakan menggunakan sofware ArcGis 10,1.
Hasil penelitian menunjukkan kelas kerusakan suren di Arboretum BP2LHK tergolong kelas sehat dengan Nilai Indeks Kerusakan (NIK) sebesar 4,95. Terdapat sembilan tipe kerusakan dan tipe kerusakan yang mendominasi adalah tipe kerusakan cabang patah atau mati yaitu sebesar 28,72% dan bagian tegakan suren yang paling banyak mengalami kerusakan adalah pada lokasi cabang sebesar 29%.
Kata kunci: suren, arboretum BP2LHK, kesehatan tegakan, FHM, ArcGis 10.1
