Herwasono Soedjito, Herwasono
Puslitbang Biologi Lembaga Ilmu Pengetahuan Indonesia (LIPI)

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TREE SPECIES DIVERSITY IN A PRISTINE MONTANE FOREST PREVIOUSLY UNTOUCHED BY HUMAN ACTIVITIES IN FOJA MOUNTAINS, PAPUA, INDONESIA Sadili, Asep; Kartawinata, Kuswata; Soedjito, Herwasono; Sambas, Edy Nasriadi
REINWARDTIA Vol 17, No 2 (2018): Vol.17 No.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3979.371 KB) | DOI: 10.14203/reinwardtia.v17i2.3546

Abstract

ADILI, A., KARTAWINATA, K., SOEDJITO, H. & SAMBAS, E. N. 2018. Tree species diversity in a pristine montane forest previously untouched by human activities in Foja Mountains, Papua, Indonesia. Reinwardtia 17(2): 133‒154. ‒‒ A study on structure and composition of the pristine montane forest previously untouched by human activities was conducted at the Foja Mountains in November 2008. We established a one-hectare plot divided into 100 subplots of 10 m × 10 m each. We enumerated all trees with DBH ≥ 10 cm which diameters were measured, heights were estimated and habitats were noted. We recorded 59 species, 42 genera and 27 families, comprising 693 trees with the total basal area (BA) of 41.35 m2/ha. The forest had lower species richness compared to those of lowland forests in Kalimantan, and Sumatra and montane forests in West Java. The Shannon-Wiener’s diversity index was 3.22. Nothofagus rubra (Importance Value, IV=47.89%) and Parinari corymbosa (IV=40.3%) were the dominant species, constituting the basis for designating the forest as the Nothofagus rubra - Parinari corymbosa association. To date, the dominance of N. rubra is unique to the Foja Mountains, as elsewhere in Papua the montane forests were dominated by N. pullei or other species. The species-area curve indicated a minimal area of 5000 m2. On the family level Fagaceae (IV=53.23%), Chrysobalanaceae (IV=40.53%) and Myristicaceae (IV=26.43%) were dominant. Verti-cally the forest consisted of four strata (A–D). In each stratum Nothofagus rubra, Platea latifolia, Parinari corymbosa and Myristica hollrungii were dominant. The diameter class distribution of Nothofagus rubra, Parinari corymbosa and Platea latifolia led us to assume that these species were regenerating well.
DINAMIKA HUTAN DI LONG SEI BARANG, APO KAYAN KALIMANTAN TIMUR SOEDJITO, HERWASONO
BERITA BIOLOGI Vol 2, No 8 (1984)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i8.1412

Abstract

Hutan tropika mempunyai peianan penting untuk kehidupan manusia, dan menurnt Jacobs (1980) terdapat 12 pokok kepentingan. Tidak dapat dipungkiri bahwa penebangan hutan telah menyebabkan timbulnya bermacam-macam efek negatif (Kartawinata 1977).Perusakan hutan ini, tragisnya, terutama disebabkan oleh kegiatan manusia itu sendiri. Perubahan ekosistem hutan ini, bila tidak mendapat gangguan lebih lanjut akan kembali lagi ke keadaan hutan aslinya. Menurut Ewel (1980), tumbuh kembali dan daya lenting dari hutan tropika dataran tinggi adalah lambat, bahkan mungkin tidak akan kembali lagi setelah adanya penggundulan hutan. Tetapi Hartshorn (1980) menaksir bahwa hutan tropika akan berbalik rata-rata 75 - 150 tahun. Hal ini menunjukkan hal baru dimana temyatu irutan tropika lebih sangat dinamis, tidak seperti perkiraan terdahulu