Habitat Preferences, Distribution Pattern, and Root Weight Estimation of Pasak Bumi (Eurycoma longifolia Jack.)

Kartikawati, Siti Masitoh; Zuhud, Ervizal A.M.; Hikmat, Agus; Kartodihardjo, Hariadi; Fuadi, M

doi:10.7226/jtfm.20.1.43

Cited by 4 publications

(3 citation statements)

References 13 publications

(10 reference statements)

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“…The IVI of E. longifolia at seedling and sapling stages decreased significantly from the highest to the 8 th . Similar result was also obtained by Kartikawati et al (2014) in Kubu Raya district and Hasibuan et al (2016) in Rumbio Forest who found that at the seedling stage E. longifolia was abundant but decreased significantly in sapling and mature stages. However, in certain sites, there is an exception that E. longifolia may grow to a "giant" size, where the species may reach more than 20 cm in diameter and more than 7 m in height.…”

Section: Species Compositionsupporting

confidence: 87%

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The composition and diversity of plant species in pasak bumi’s (Eurycoma longifolia) habitat in Batang Lubu Sutam forest, North Sumatra, Indonesia

Susilowati

Rachmat²,

Elfiati

et al. 2019

Biodiversitas

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Susilowati A, Rachmat HH, Elfiati D, Hasibuan MH. 2019. The composition and diversity of plant species in pasak bumi’s (Eurycoma longifolia) habitat in Batang Lubu Sutam forest, North Sumatra, Indonesia. Biodiversitas 20: 413-418. Pasak bumi (Eurycoma longifolia Jack) is one of the most popular medicinal plants in Indonesia. Currently, E. longifolia is being over-exploited due to its potential and popularity as herbal medicine and its high value in the market. Therefore, the study on the population structure of the species and habitat characterization is required to ensure successfulness of conservation of this species. The study was carried out in lowland forest, located in Limited Production Forest within the Register Number 40, situated administratively in Papaso Village, Sub-District of Batang Lubu Sutam-Padang Lawas, North Sumatra, Indonesia. Batang Lubu Sutam forest is known as a source of pasak bumi material in North Sumatra. Every year tons of pasak bumi are collected from this forest and exported to Malaysia and surrounding countries. Due to illegal harvesting for its roots, pasak bumi has been seriously depleted in some areas in Batang Lubu Sutam forest. Therefore, current data on its population are needed for conservation effort of Batang Lubu Sutam's pasak bumi. The objectives of this study were to assess the structure of forest where pasak bumi grows and to determine the correct management for sustainability the future stocks. Vegetation analysis was carried out purposively in four transect belts, each consisting of five quadrats or plots. The results showed that the Importance Value Index of pasak bumi at seedling, sapling, pole and tree stages was 21.26%, 9.147%, 0, and 0 respectively. The Shannon Diversity Index (H) ranged between 3.050 and 3.220 and was inside its common value distribution. The evenness index was high, more than 0.85, at all stages of plant growth. The disappearance of pasak bumi at pole and tree stages indicates threatening condition for the sustainability of pasak bumi in the study sites because of excessive harvesting.

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Section: Species Compositionsupporting

confidence: 87%

“…The dry product has quite high price in the market. Kartikawati (2014) described that in 2013, the exporter of E. longifolia based in Deli Serdang got USD249.16 for a kilogram of chopped roots. Meanwhile, the price for 1: 200 extracts were USD3242.85 kg -1 and for 1: 50 extracts was USD1625 kg -1 .…”

Section: Species Compositionmentioning

confidence: 99%

The composition and diversity of plant species in pasak bumi’s (Eurycoma longifolia) habitat in Batang Lubu Sutam forest, North Sumatra, Indonesia

Susilowati

Rachmat²,

Elfiati

et al. 2019

Biodiversitas

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“…Trên thế giới đã có nhiều công trình nghiên cứu về loài này nhằm sử dụng trong điều trị bệnh ở người. Cây bách bệnh phân bố rộng rãi khắp nơi, nhưng nhiều nhất là ở khu vực Đông Nam Á, và Việt Nam là một trong các nước có số lượng cá thể khá lớn [8].…”

Section: đặT Vấn đềunclassified

Nhân Giống in Vivo Cây Bách Bệnh (Eurycoma Longifolia Jack)

Đức¹,

Yen²,

Hoi³

et al. 2018

HueUni-JARD

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Tóm tắt: Bài báo này trình bày các nghiên cứu về nhân giống cây bách bệnh (Eurycoma longifolia Jack) bằng kỹ thuật giâm hom và gieo hạt. Hom giâm trước khi xử lý chất kích thích sinh trưởng đã được ngâm trong dung dịch diệt nấm Benlat-C 0,1 %. Kết quả cho thấy sau 4 tháng hom giâm bắt đầu nảy chồi và sau 6 tháng đã xuất hiện rễ. Trong đó, xử lý bằng Auxin Indole acetic acid (IAA) nồng độ 1250 mg/L cho kết quả tốt nhất đối với hom đầu ngọn (23,45 % nảy chồi và 5,56 % xuất hiện rễ), IAA nồng độ 1000 mg/L thích hợp cho hom đoạn thân (51,84 % nảy chồi và 52,22 % xuất hiện rễ). Ở trường hợp gieo hạt, tỉ lệ nảy mầm cao nhất đạt được đối với hạt có độ thuần 78 % sau 30 ngày gieo là 28 % khi được xử lý nhiệt trong khoảng 40–45 °C trong 8 giờ. Giá thể có thành phần 89 % đất cát + 10 % phân chuồng + 1 % lân cho kết quả cao nhất về tỷ lệ sống, chiều cao và đường kính gốc lần lượt là 100 %, 7,98 cm và 0,27 cm.Từ khóa: bách bệnh, giâm hom, gieo hạt, nhân giống

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Habitat suitability modelling of Pasak Bumi (Eurycoma longifolia Jack.) in Riam Kanan conservation forest zone using Sentinel-2 biophysical parameters

Fithria

2020

IOP Conf. Ser.: Earth Environ. Sci.

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Pasak bumi usually grow under the tree canopies. So that the character of its habitat is assumed to be estimated using several biophysical parameters of the tree canopy around it. The purpose of this research was to model the suitability of the pasak bumi habitat in the Riam Kanan conservation forest zone, using a number of biophysical parameters extracted from Sentinel-2 MSI imagery. Those parameters are Leaf Area Index (LAI), Canopy Chlorophyll Content (CCC), Canopy Water Content (CWC), Fraction of Vegetation Cover (FVC), and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR). Ground surveys were carried out to find the coordinates of pasak bumi using accidental sampling method. Pasak bumi coordinate points are overlaid with biophysical parameters. Statistical analysis was then applied to predict the range of population values from each biophysical parameter, using Confidence Interval (CI) 95%. The results of the research show that CI LAI 2.532-2.772, CI CCC 137.101-158.028 gr/cm2, CI CWC 0.05-0.057 gr/m2, CI FVC 0.698-0.737, and CI FAPAR 0.732-0.765. The values of these biophysical parameters directly describe the biophysical characteristics of the pasak bumi habitat in the research location. These CI values are then implemented using binary modelling to predict the habitat of pasak bumi. Based on the results of modelling, it was found that the area suitable for pasak bumi plants was an area of 1,807.91 hectares. This area has a proportion of 1.55% of the total area of the conservation zone. To improve accuracy, other biophysical parameters can be considered to be involved in modelling.

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Habitat Preferences, Distribution Pattern, and Root Weight Estimation of Pasak Bumi (Eurycoma longifolia Jack.)

Abstract: Pasak bumi (Eurycoma longifoliaJack

Cited by 4 publications

References 13 publications

The composition and diversity of plant species in pasak bumi’s (Eurycoma longifolia) habitat in Batang Lubu Sutam forest, North Sumatra, Indonesia

The composition and diversity of plant species in pasak bumi’s (Eurycoma longifolia) habitat in Batang Lubu Sutam forest, North Sumatra, Indonesia

Nhân Giống in Vivo Cây Bách Bệnh (Eurycoma Longifolia Jack)

Habitat suitability modelling of Pasak Bumi (Eurycoma longifolia Jack.) in Riam Kanan conservation forest zone using Sentinel-2 biophysical parameters

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