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RECOVERY OF VEGETATION STRUCTURE, SOIL NUTRIENTS AND LATE-SUCCESSION SPECIES AFTER SHIFTING CULTIVATION IN CENTRAL KALIMANTAN, INDONESIA
Written by SBK   
Sunday, 01 March 2015 22:07

 

Widiyatno¹?³?*, Budiadi¹, P Suryanto¹, YDBM Rinarno¹, SD Prianto¹, Y Hendro², T Hosaka³& S Numata³

¹Faculty of Forestry, Gadjah Mada University, Bulaksumur, Yogyakarta, 55281, Indonesia

²PT Sari Bumi Kusuma, Camp Nanga Nuak, Melawi, West Kalimantan, 79682, Indonesia

³Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Minami-Ohsawa, Hachioji, Tokyo 192-0397 Japan

* This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Submitted November 2015; accepted January 2016

Recovery of vegetation and soil nutrients in abandoned shifting cultivation areas can provide important information, important for forest rehabilitation. For better understanding of forest recovery afterthe cessation of shifting cultivation, soil nutrients and vegetation structure of fallow areas were monitored at 1, 5 and 10 years after abandonment in a primary forest plot. The results showed that the number of species, the Shannon indices of diversity and evenness of large trees (diameter at breast height > 20 cm) increased with time after abandonment. Late-successional species in primary tropical rainforests, e.g. Shorea sp., was found 1, 5 and 10 years after abandonment. Soil organic carbon and total nitrogen levels were low in all plots and at all soil depths except in surface soil (0–2 cm), and did not significantly differ between among plots. Available phosphorous content was significantly different between the plot that had been fallow for one year and the rest of the plots, for both combined and each soil depth. It was concluded that changes in vegetation composition did not affect the status of soil nutrients in the young fallow plots, which can support the growth of late-succession species.

Keywords: Forest recovery, pioneer species, soil organic carbon, total nitrogen, phosphorous

Journal of Tropical Forest Science 29(2): 151–162 (2017) Widiyatno et al.

Last Updated on Friday, 04 October 2019 10:38
 
Penilaian Kinerja Pengelolaan Hutan Produksi Lestari (PHPL) di areal PT Sari Bumi Kusuma Katingan-Seruyan
Written by SBK   
Sunday, 01 March 2015 22:01

Penilaian Kinerja Pengelolaan Hutan Produksi Lestari (PHPL) Di Areal PT Sari Bumi Kusuma Katingan-Seruyan

Pada tanggal 11-18 Pebruari 2015 yang lalu, PT Sari Bumi Kusuma (SBK) telah menjalani Penilaian Kinerja PHPL. Lembaga Penilai yang melaksanakan proses Penilaian Kinerja tersebut adalah PT Ayamaru Sertifikasi dengan auditor Burhanudin Hadisiswoyo, S.Hut (Lead Auditor/Audit Aspek Prasyarat), Rendi Juliandi, S.Hut (Auditor Aspek Produksi), Dadan Darmawan, S.Hut (Auditor Aspek Ekologi), Susanto Darmono, S.Sos (Auditor Aspek Sosial) dan Dwi Jatmiko Dwiyanto (Auditor VLK).

 

Last Updated on Monday, 15 November 2021 23:12
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WORKSHOP METODE RISET KEHUTANAN
Wednesday, 05 November 2014 11:46

 

“Riset yang paling baik adalah riset yang memecahkan sebuah permasalahan, cara terbaik meningkatkan kemampuan riset adalah melakukan riset dan peneliti yang paling penting dalam memecahkan persoalan pengelolaan hutan tropis adalah peneliti yang bekerja di negara tersebut”.

-         Profesor Francis “Jack” Putz -

 

Atas dasar itulah pada tanggal 26 Oktober 2014 yang lalu, PT Sari Bumi Kusuma (SBK) bekerjasama dengan Universitas Tanjungpura (UNTAN) dan University of Florida (UF) menyelenggarakan workshop metode riset kehutanan di Base Camp PT SBK.

 

Last Updated on Wednesday, 05 November 2014 11:53
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SBK PROVIDES A GLOBALLY SIGNIFICANT MODEL FOR TROPICAL SILVICULTURE
Wednesday, 05 November 2014 11:43

SBK PROVIDES A GLOBALLY SIGNIFICANT MODEL FOR TROPICAL SILVICULTURE

Professor Francis E. “Jack” Putz, University of Florida, USA

 

In the field of natural forest management in the tropics, Indonesia leads the world and one of the leaders in Indonesia is Sari Bumi Kusuma (SBK) Katingan-Seruyan block in Central Kalimantan. Over my four decades in tropical forestry, I have not yet encountered an operational-scale silvicultural effort like SBK’s.  In South America and Africa, the focus is on reducing the impacts of logging (RIL). SBK employs RIL techniques but then in half of its concession follows selective logging with enrichment planting of seedlings of commercial timber species along cleared lines through the harvested forest.  At the time of my most recent visit in late 2014, SBK had successfully line-planted 49.207 hectares. The company’s total area is 147.600 ha and allocated effective area for two silvicultural systems: TPTJ (60.508 ha) and TPTI (59.098 ha), nature conservation (12.668 ha), and areas used for infrastructure (road, camp buildings), villages, rivers, and seed stands (15.326 ha).

 

Last Updated on Wednesday, 05 November 2014 11:53
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Praktek Pertanaman saat ini Memiliki Pengaruh Genetik yang tak Berarti pada Tanaman Dipterocarp di Hutan Hujan Tropis
Written by SBK   
Monday, 11 August 2014 11:39

Praktek Pertanaman saat ini Memiliki Pengaruh Genetik yang tak Berarti pada Tanaman Dipterocarp di Hutan Hujan Tropis

Oleh  A. IZUNO¹??²?,  S. INDRIOKO³?,  WIDIYATNO³?,  E. PRASETYO³?,  KASMUJIONO??  and  Y.  ISAGI¹?

Abstrak

Pohon-pohon Dipterocarp keberadaannya secara ekologis dan komersial berperan penting di kawasan hutan hujan tropis wilayah di Asia Tenggara. Untuk pengelolaan ekosistem hutan secara berkelanjutan dan pelestarian keanekaragaman hayati, hal yang perlu dilakukan adalah membangun pertanaman dengan metode yang dapat menjamin bahwa variasi genetik pohon yang ditanam ekuivalen dengan pohon-pohon di hutan alam.

 

Last Updated on Monday, 11 August 2014 11:41
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Page 4 of 8
Wednesday, 07 December 2022

Certificate

certificate
Tahukah anda pilihan anda hari ini akan menentukan apa yang akan terjadi esok karenanya jangan pernah mengeluh dengan akibat dari pilihan anda.