VARIATION OF FOREST STRUCTURE AND BIOMASS ALLOCATION AMONG DEGRADATION LEVEL OF WEST KALIMANTAN PEATLAND FOREST
| Main Authors: | Astiani, Dwi, Curran, Lisa M, ., Mujiman, Salim, Ruspita, Lisnawati, Nelly, Ratnasari, Dessy, Firwanta, Deddy D, Purwanto, Yadi |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)
, 2016
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| Online Access: |
http://journal.ipb.ac.id/index.php/jsilvik/article/view/15638 http://journal.ipb.ac.id/index.php/jsilvik/article/view/15638/11519 |
Daftar Isi:
- Tropical peatland forests in Indonesia are facing a lot of pressure, resulting increased deforestation and degradation ofintact forests. Both natural and anthropogenic cause of changes – concentrated in Sumatra and Kalimantan, Indonesia –has been reported as 3.4% y-1 from 1990 – 2010. Currently, only ~ 41% to 44% of the original peatland forests ofKalimantan left. As a result of both changes, degraded peatlands have altered their balance on their natural conditions androles, since degradation of forest cover is often a complex process with their own of ecological recovery. A study hasbeen executed to explore the effect of forest degradation on forest structure and their biomass allocation in coastalpeatland forest of Kubu Raya, West Kalimantan. Forty eight of a 50 x 50 m sized plots with variety of degradation levelwere assessed for their tree structure, density, stand biomass, and basal area and compared. Results show that forestdegradation shifted tree diameter 10-20 cm dominance on their biomass stocks to larger trees (>20 cm) and smaller one(5-10 cm). Forest structure seems in a good and normal shape from small tree to large one. It is indicated that highdegraded forest demonstrate a decline its biomass allocation, tree density per hectare, basal area on each level of foreststructures.Key words : basal area, peatland forest, stand biomass, tree structure, tree density.