Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan

Hashimoto, Toru; Tange, Takeshi; Masumori, Masaya; Yagi, Hironori; Sasaki, Satoshi; Kojima, Kôhei

doi:10.3759/tropics.14.123

Cited by 35 publications

(49 citation statements)

References 10 publications

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“…Other pioneer tree species within, but not dominating, the plots included Ficus sp., Geunsia pentandra, and Vernonia arborea, which are common colonizers following forest fires in this area 5,8 .…”

Section: Field Measurementsmentioning

confidence: 98%

Biomass Recovery of Naturally Regenerated Vegetation after the 1998 Forest Fire in East Kalimantan, Indonesia

Hiratsuka

Toma²,

Diana

et al. 2006

JARQ

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After the 1998 forest fire in East Kalimantan, Indonesia, biomass recovery of naturally regenerated vegetation was estimated in order to evaluate the initial secondary succession patterns of the burned land. We established research plots in naturally regenerated vegetation that included pioneer tree species, and the dominant pioneer species were Homalanthus populneus, Macaranga gigantea and M. hypoleuca, Mallotus paniculatus, Melastoma malabathricum, Piper aduncum, or Trema cannabina and T. orietalis. Annual tree censuses over 4 years (from 2000 to 2003) showed that on plots where the initially dominant tree species were M. malabathricum and T. cannabina and T. orietalis, they tended to disappear, and were replaced with M. gigantea and M. hypoleuca. In contrast, on plots where the initially dominant species were M. gigantea and M. hypoleuca, M. paniculatus, or P. aduncum, they continued to dominate 5 years after the fire. We classified tree species that were initially dominant but disappeared within 5 years after the fire as extremely short-lived tree species. The aboveground biomass of trees (AGB) averaged 12.3 Mg ha -1 (ranging from 9.2 to 17.0 Mg ha -1 ) in 2000 and 15.9 Mg ha -1 (ranging from 7.4 to 25.0 Mg ha -1 ) in 2003. Between 2000 and 2003, some plots exhibited an increase in AGB and some a decrease in AGB. In the plots dominated by M. gigantea and M. hypoleuca, the AGB increased to over 20 Mg ha -1 , but other plots accumulated significantly less AGB in the 5 years following the fire. These results suggest that the pattern of AGB accumulation in secondary forests is strongly dependent on the dominant pioneer tree species.

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Section: Field Measurementsmentioning

confidence: 98%

Biomass Recovery of Naturally Regenerated Vegetation after the 1998 Forest Fire in East Kalimantan, Indonesia

Hiratsuka

Toma²,

Diana

et al. 2006

JARQ

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“…Therefore, we considered using allometric equation with D as independent variable for estimating the tree component biomass and stem volume in the sample plot. Besides, the equation is statistically was right, using diameter only as independent variable will be easier to work in the field in estimating a forest stand (Zianis, 2008;Pilli et al, 2006;Segura, 2005;Hashimoto et al, 2004;Aboal et al, 2005). In addition, the developed allometric equation that incorporate diameter alone would be practical, simple and economical (Onyekwelu, 2007).…”

Section: Biomass Storage Of K Ivorensis and H Odoratamentioning

confidence: 99%

Assessing Forest Plantation Productivity of Exotic and Indigenous Species on Degraded Secondary Forests

Heryati¹,

Abdu²,

Mahat³

et al. 2011

American Journal of Agricultural and Biological Sciences

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Problem statement:There is general agreement that human activities such as deforestation and land use change to other land use types have contributed to degraded secondary forests or forestland and increases the emission of greenhouse gases which ultimately led to global climate change. An establishment of forest plantation in particular is regarded as an important approach for sequestering carbon. However, limited information exists on productivity and potential of fast growth exotic and indigenous tree plantations for sequestering CO 2 from the atmosphere through photosynthesis. This study aimed at assessing the productivity and biomass accumulation along with the potential for sequestering CO 2 of planted exotic and indigenous species on degraded forestland. Approach: This study was conducted at Khaya ivorensis and Hopea odorata plantations, which was planted at the Forest Research Institute Malaysia (FRIM) Research Station in Sega mat Johor, Malaysia five years ago. In order, to evaluate the forest productivity and biomass accumulation of both species, we established plots with a size of 40x30 m in three replications in each stand, followed by measuring all trees in the plots in terms of height and Diameter at Breast Height (DBH). To develop allometric equation, five representative trees at each stand were chosen for destructive sampling. Results: The growth performance in terms of mean height, DBH, annual increment of height and diameter and basal area of exotic species (K. ivorensis) was significantly higher than that of the indigenous species (H. odorata). We used the diameter alone as independent variable to estimate stem volume and biomass production of both species. The stem volume of K. ivorensis stand was 43.13 m 3 ha −1 and was significantly higher than H. odorata stands (33.66 m 3 ha −1 ).The results also showed that the K. ivorensis and H. odorata stands have the potential to absorb CO 2 from the atmosphere which was stored in aboveground biomass with value 15.90 Mg C ha −1 and 13.62 Mg C ha -1 , respectively. In addition, the carbon content in root biomass of H. odorata stand was higher than that in K. ivorensis stand with value 7.67 Mg C haand 4.58 Mg C ha −1 , respectively. Conclusion/Recommendation:The exotic (K. ivorensis) and indigenous (H. odorata) species which was planted on degraded forestland exhibited different growth rate, biomass production and ability to absorb CO 2 from the atmosphere in each part of the tree. In general, forest productivity and ability to absorb CO 2 from the atmosphere of exotics species (K. ivorensis) was higher than that indigenous species (H. odorata). These findings suggest that forest plantation productivity has been affected by species characteristics and suitability of species to site condition. Thus, to sustain high productivity with suitable species selection for carbon sequestration, these factors should be considered for future forest establishment.

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“…The number of local or site-specific allometric studies in Indonesia is high compared with studies in other countries in South-East Asia (Yuen et al 2016), including studies in the TDFs of Indonesian Borneo (Kalimantan) by Yamakura et al (1986a), Basuki et al (2009) and Hashimoto et al (2004). The first two studies are the most well known and were conducted on TDFs with relatively large samples and a wide range of trunk diameter.…”

Section: Introductionmentioning

confidence: 99%

“…Yamakura's equations were constructed for each tree component rather than for the total tree, and thus can introduce bias if simply added together for estimating total tree AGB. Hashimoto et al (2004) developed species-specific and mixed-species biomass equations for pioneer trees in a secondary forest in East Kalimantan. Although Hashimoto et al (2004) study involved large sample size was (N = 108), the diameter range of the trunk was limited to a maximum of only 20.3 cm.…”

Section: Introductionmentioning

confidence: 99%

Improved allometric equations for tree aboveground biomass estimation in tropical dipterocarp forests of Kalimantan, Indonesia

Manuri

Brack

Noor’an³

et al. 2016

For. Ecosyst.

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Background: Currently, the common and feasible way to estimate the most accurate forest biomass requires ground measurements and allometric models. Previous studies have been conducted on allometric equations development for estimating tree aboveground biomass (AGB) of tropical dipterocarp forests (TDFs) in Kalimantan (Indonesian Borneo). However, before the use of existing equations, a validation for the selection of the best allometric equation is required to assess the model bias and precision. This study aims at evaluating the validity of local and pantropical equations; developing new allometric equations for estimating tree AGB in TDFs of Kalimantan; and validating the new equations using independent datasets. Methods: We used 108 tree samples from destructive sampling to develop the allometric equations, with maximum tree diameter of 175 cm and another 109 samples from previous studies for validating our equations. We performed ordinary least squares linear regression to explore the relationship between the AGB and the predictor variables in the natural logarithmic form. Results: This study found that most of the existing local equations tended to be biased and imprecise, with mean relative error and mean absolute relative error more than 0.1 and 0.3, respectively. We developed new allometric equations for tree AGB estimation in the TDFs of Kalimantan. Through a validation using an independent dataset, we found that our equations were reliable in estimating tree AGB in TDF. The pantropical equation, which includes tree diameter, wood density and total height as predictor variables performed only slightly worse than our new models. Conclusions: Our equations improve the precision and reduce the bias of AGB estimates of TDFs. Local models developed from small samples tend to systematically bias. A validation of existing AGB models is essential before the use of the models.

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Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan

Cited by 35 publications

References 10 publications

Biomass Recovery of Naturally Regenerated Vegetation after the 1998 Forest Fire in East Kalimantan, Indonesia

Biomass Recovery of Naturally Regenerated Vegetation after the 1998 Forest Fire in East Kalimantan, Indonesia

Assessing Forest Plantation Productivity of Exotic and Indigenous Species on Degraded Secondary Forests

Improved allometric equations for tree aboveground biomass estimation in tropical dipterocarp forests of Kalimantan, Indonesia

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