Disepalum rawagambut (Annonaceae), a new tree species from peat swamp forest of Sumatra, Indonesia

Phytotaxa ◽  
2022 ◽  
Vol 530 (1) ◽  
pp. 121-126
Author(s):  
AGUSTI RANDI ◽  
LAHIRU S. WIJEDASA ◽  
DANIEL C. THOMAS
Keyword(s):  
Tree Species ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Peat Swamp

N/A

scholarly journals TREE SPECIES DIVERSITY AND ETHNOBOTANY OF DEGRADED PEAT SWAMP FOREST IN CENTRAL KALIMANTAN

REINWARDTIA ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 27-54
Author(s):  
Titi Kalima ◽  
Sri Suharti ◽  
Sumarhani Sumarhani ◽  
Liam A. Trethowan
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Local People ◽  
Tree Species Diversity ◽  
Importance Value ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Central Kalimantan ◽  
Large Tree ◽  
Peat Swamp

KALIMA, T., SUHARTI, S., SUMARHANI & TRETHOWAN, L. A. 2020. Tree species diversity and ethnobotany of degraded peat swamp forest in Central Kalimantan. Reinwardtia 19(1): 27‒54. ‒‒ Most peat swamp forest has been degraded. This has resulted in decline of its biodiversity. The objective of this study was to identify the composition, diversity, and plants used by local people in Bagantung swamp forest. The study was conducted on degraded peat swamp forest area in Bagantung, Mantangai Sub-District, Kapuas District, Central Kalimantan Province. The Shannon-Wiener (H’) and the Importance Value (IV) indices were used for analyzing the species diversity and the species importance across a number of forest plots. Useful tree species were identified by interviewing local villagers. There were 2,562 individual plants in 32 plots (each plot 20 m × 20 m). We identified 100 tree species and 16 non-tree species, from 74 genera, and 46 families. Myrtaceae, Sapotaceae, Ebenaceae, Dipterocarpaceae and Clusiaceae were the most dominant families. Large tree (H’=1.46) and small tree diversity was similar (H’=1.75). In both small and large tree size classes Calophyllum nodusum was the most dominant species. There were 16 tree species and two non-tree species used by local people for house and boat construction, furniture, handicrafts, medicine, and insect repellent.  

Microtopographic specialization and flexibility in tropical peat swamp forest tree species

Biotropica ◽  
2017 ◽  
Vol 50 (2) ◽  
pp. 208-214 ◽  
Author(s):  
Cathryn A. Freund ◽  
Fransiskus A. Harsanto ◽  
Ari Purwanto ◽  
Hidenori Takahashi ◽  
Mark E. Harrison
Keyword(s):  
Tree Species ◽  
Forest Tree ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Forest Tree Species ◽  
Tropical Peat ◽  
Peat Swamp ◽  
Tropical Peat Swamp Forest ◽  
Tropical Peat Swamp

scholarly journals Structure and Species Composition in Logged-over Swamp Forest, Bengkalis, Riau

2018 ◽  
Vol 68 ◽  
pp. 01005 ◽  
Author(s):  
Mohammad Basyuni ◽  
Jayusman Jayusman ◽  
Rahmah Hayati
Keyword(s):  
Species Composition ◽  
Tree Species ◽  
Euclidean Distance ◽  
Site Index ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Peat Swamp ◽  
Structural Ensembles ◽  
Euclidean Distances ◽  
Study Sites

Peat swamp forest is a particularly stable ecosystem. This stability may regulate well-balanced water to maintain the existence of typical flora and fauna. The present study describes the structure and species composition from three different sites namely newly logged-over swamp forest, three years old logged-over swamp forest, and four years old-logged over swamp forest in Bengkalis, Riau, Indonesia. The study sites were predominated by four structural ensembles with their strata order from the highest to lowest: emergent trees, canopy, lower ensembles, and undergrowth. The emergent trees consisted of three tree species, and the canopy included four species, lower groups covered three species, and undergrowth had two species. Overall, the three sites composed of 26 species with 24 genera and 24 families. Dendrogram based on similarity of site index showed that newly and three years old logged-over forest joined into one cluster with Euclidean distance at 38.42. Furthermore, both sites joined with four years old logged over forest forming another cluster with 489.19 Euclidean distances. Present study, therefore, showing that four years old logged-over peat swamp forest turned out to have the greatest Euclidean distance value.

scholarly journals Growth Performance of Three Indigenous Tree Species (Cratoxylum arborescens Vahl. Blume, Alstonia spathulata Blume, and Stemonurus scorpioides Becc.) Planted at Burned Area in Klias Peat Swamp Forest, Beaufort, Sabah, Malaysia

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Andi Russel Mojiol ◽  
Wahyudi Wahyudi ◽  
Wahyudi Wahyudi ◽  
Narbert Nasly ◽  
Narbert Nasly
Keyword(s):  
Growth Performance ◽  
Tree Species ◽  
Burned Area ◽  
Open Area ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Diameter Increment ◽  
Peat Swamp ◽  
Significant Difference ◽  
Indigenous Tree Species

<p>The aim of the study was to evaluate the growth performance of three indigenous tree species planted under open area planting technique of burned area at Klias Peat Swamp Forest, Beaufort, Sabah. Three indigenous tree species was used in this study, namely are <em>Cratoxylum arborescens</em> (Vahl) Blume (Geronggang), <em>Alstonia spathulata</em> Blume (Pulai), and <em>Stemonurus scorpioides</em> Becc. (Katok). A total of 45 seedlings for each species were examined using Randomized Complete Block Design (RCBD) with spacing of 3mx3m. Data collection for height, diameter, and survivality was recorded every two weeks within 10 weeks period from the seedlings was planted. Results from this study showed, the growth performance of Geronggang species was much better than the Pulai species, while all the Katok seedlings were died after week 6 in this experiment. The Geronggang species had the average mean height increment of 24.17 cm and average mean diameter increment of 2.76 mm, while Pulai species had average mean height increment of 9.36 cm and average mean diameter increment with 1.86 mm. For the survivality results, it showed that the Geronggang species had the highest survivality rate at 93.33% and Pulai species with 86.67%. There was a significant difference in term of relative height growth rate between Geronggang and Pulai species.  However, there was no significant difference in term of relative diameter growth rate at significant level of P ≤ 0.05. The findings indicates that Geronggang and Pulai are suitable to be planted at burned area in Klias peat swamp forest for the purpose of reforestation using open area planting technique, while the Katok species is not suitable due to environment consideration. The better growth performance of the Geronggang and Pulai species are because they can easily adapted with the open area planting at the study site.</p>

Analysis of importance value index of unlogged and logged peat swamp forest in Nenasi Forest Reserve, Peninsular Malaysia

2017 ◽  
Vol 7 (2) ◽  
pp. 74-78
Author(s):  
MOHD HASMADI ISMAIL ◽  
PAKHRIAZAD HASSAN ZAKI ◽  
MOHD FADLI AHMAD FUAD ◽  
NOOR JANATUN NAIM JEMALI
Keyword(s):  
Tree Species ◽  
Dominant Species ◽  
Critical Role ◽  
Peninsular Malaysia ◽  
Importance Value Index ◽  
Importance Value ◽  
Swamp Forest ◽  
Forest Reserve ◽  
Peat Swamp Forest ◽  
Peat Swamp

Ismail MH, Fuad MFA, Zaki PH, Jemali NJN. 2017. Analysis of importance value index of unlogged and logged peat swamp forest in Nenasi Forest Reserve, Peninsular Malaysia. Bonorowo Wetlands 1: 74-78. Peat swamp forests are highly significant globally, both for their diverse and threatened species and as a representative of unique wetland ecosystems. Apart from its critical role in providing habitat for wildlife, the tropical peat swamp forest also acts as a gene bank that harbors potentially useful varieties of plant species. The composition of trees of the peat swamp forest in Nenasi Pahang State, Peninsular Malaysia were investigated especially in un-logged and logged over forests. The objectives of this study are two folds; (i) to identify and compare the dominant tree species in the two types of forests and (ii) to calculate the importance value index (IVI) of the vegetation in the study areas. Two plots of 50 m by 20 m were established in different forest type. At each site this quadrate was in turned subdivided using a 25 m by 20 m, and 5 m by 5 m, respectively. The results showed that the unlogged peat swamp forest is higher in tree species compared to logged peat swamp forest. There were 10 species distributed among 9 families in the unlogged forest and 7 species in 7 families in the logged forest. The most dominant species identified in unlogged peat swamp forest were Litsea sp., Syzygium sp. and Santiria laevigata. The IVI for these species were 71.21, 51.13 and 42.49. In logged peat swamp forest the dominant species are Shorea platycarpa, followed by Pometia pinnata, and Xylopia fusca. The IVI of these species were 87.38, 52.66 and 47.55, respectively. The study concludes that in the logged peat swamp forests about 40 percent of the tree composition has declined compared to unlogged peat swamp forest.

scholarly journals Initiating the establishment of commercial stand at Tasik Besar Serkap, Riau, Indonesia: An early growth assessment of two peat swamp tree species

2018 ◽  
Vol 20 (1) ◽  
pp. 267-272
Author(s):  
HENTI HENDALASTUTI RACHMAT ◽  
ATOK SUBIAKTO
Keyword(s):  
Tree Species ◽  
Native Species ◽  
Greenhouse Gas Emission ◽  
Early Growth ◽  
Seedling Mortality ◽  
Physical Damage ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Peat Swamp ◽  
Growth Assessment

Rachmat HH, Subiakto A. 2019. Initiating the establishment of commercial stand at Tasik Besar Serkap, Riau, Indonesia: An early growth assessment of two peat swamp tree species. Biodiversitas 20: 267-272. Degraded and converted peat swamp forest has enhanced the emission of CO2 and become one major contributor of huge greenhouse gas emission. Management unit at site level of KPH Tasik Besar Serkap covers a very wide area of more than 510.000 ha, dominated by 90% of peat swamp forest (PSF) which is susceptible to several disturbance sources (fires, illegal logging, land encroachment, alien species invasion, etc) and experiencing more deteriorated condition if there is no significant action carried out in managing its resources. Thus, it is important to improve the productivity of this PSF by planting it with native commercial tree species in order to maintain its role both in production and conservation aspects. The main objective of this study was to determine suitable PSF native species to rehabilitate highly degraded PSF in KPHP Tasik Besar Serkap. Two native PSF tree species were used namely Balangeran (Shorea balangeran) and Bintangur (Callophylum soulatri). Seedlings were planted at 4 x 3 meter spacing distance, each species was planted in a 1-ha plot, and thus the planting trial total area was 2 ha with 834 individual trees/species/ha. The survival rates at 6 months and 12 months after planting were 81.77% (682 seedlings/ha) and 58.6% (488 seedlings/ha) respectively for Balangeran, and 12.64% (105 seedlings/ha) and 10.34% (86 seedlings/ha) for Bintangur. The average heights at 6 and 12 months after planting for Balangeran were 111.54 cm (±16.731) and 206.03 cm (± 30.905) respectively, while for Bintangur 60.00 cm (± 12.921) and 72.76 cm (± 11.326) respectively. We also observed physical damage on planted seedlings, namely the occurrence of shoot and twig boring (pest) and seedling mortality caused by herbicide contact when our field staff applied herbicide at the experimental plots to ease the planted seedlings from weeds and other competitors. Borer was only identified in the surviving Balangeran seedlings at 12 months after planting with the intensity of attack of 17% . We did not observe similar case occurring in planted Bintangur. Seedling mortality rates caused by herbicide contact for Balangeran and Bintangur were 3.8% and 3,2% respectively. From the study result, it was concluded that only Balangeran was recommended to be planted for increasing the productivity of PSF in the scheme of commercial stand.

scholarly journals Wood Density and Dispersal Modes of Trees Regenerating in Disturbed Forests and Agroforests in Indonesia

2021 ◽  
Author(s):  
Subekti Rahayu ◽  
Sidiq Pambudi ◽  
Dikdik Permadi ◽  
Hesti Lestari Tata ◽  
Endri Martini ◽  
...  
Keyword(s):  
Wood Density ◽  
Tree Species ◽  
Secondary Forests ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Dipterocarp Forest ◽  
Peat Swamp ◽  
Rubber Agroforest ◽  
Lowland Dipterocarp Forest ◽  
Dispersal Agents

Abstract Natural regeneration depends on surviving propagules in the soil, seed sources from a surrounding landscape mosaic, and dispersal agents. We compiled and analyzed four sets of case studies varying in degree of disturbance, for secondary forests recovering from logging, fire, and conversion to agroforest in Sumatra or Kalimantan (Indonesia) on mineral and peat soils. Data on tree species diversity, wood density frequency distribution (indicative of successional status, databases with over 6000 species exist), and dispersal modes were compared with those for less disturbed comparator forests for the same landscapes. Undisturbed lowland dipterocarp forest in Kalimantan had close to 200 species of trees of more than 10 cm diameter at a 1 ha sample scale (and 450 at a 10-ha scale), regulation-based logging had little impact. Still, after the repeated fire a sample area of 2 ha was needed to reach the same species numbers. After forest conversion to low-management-intensity rubber agroforest, 50 tree species were found at a ha scale and close to 100 species in 3 ha. Peat swamp forest in Kalimantan and the Sumatra forest samples had close to 100 species in 1 to 2 ha. The Kalimantan forest after a repeated fire had a markedly higher fraction of low-wood-density trees (40%), but otherwise, all forests sampled were similar in overall wood density profiles. Logged-over forest managed by community (village forest) and rubber agroforest in Sumatra contained larger fractions of heavy-wood-density trees (including rubber). The majority of trees (50-70%) had birds, bats, and primates as dispersal agents in all sites. Logged-over forests on mineral soil had higher fractions of autochorous species (15%) compared to other sites. Anemochorous (wind-dispersed) species were most common (20%) in undisturbed lowland Dipterocarp forest and peat swamp forest recovering after logging and fire. Comparison between secondary forests and agroforests showed the influence of farmer selection regarding what is allowed to grow beyond the pole stage. Wood density and seed dispersal profile can be used as degradation indicators of species assemblages across various disturbance levels and types. They can also reflect the habitat quality of the surrounding forming restoration options.

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