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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati 'ADALAH Biotropika Buletin Kebun Raya REINWARDTIA TREUBIA ZOO INDONESIA Jurnal Biodjati Jurnal Vokasi Indonesia Jurnal Kelautan dan Perikanan Terapan (JKPT) 3BIO: Journal of Biological Science, Technology and Management Zoo Indonesia BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Jurnal Keuangan dan Perbankan(KEBAN) BHAKTI PERSADA Jurnal Aplikasi IPTEKS (Journal of Applied Sciences and Technology) Gunung Djati Conference Series Jurnal Penelitian Kehutanan Wallacea Jurnal Vokasi Indonesia Reinwardtia

Erwin Nurdin

Community Ecology And Environmental Biology, Department Of Biology, Faculty Of Mathematics And Natural Sciences, Universitas Indonesia

Author-ID : 480812

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Neuroscience Nursing Public Health Social Sciences Transportation Other

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KANDUNGAN KARBON DI HUTAN RAWA GAMBUT KAWASAN KONSERVASI PT NATIONAL SAGO PRIMA, KEPULAUAN MERANTI, RIAU Rosalina, Yusi; Kartawinata, Kuswata; Nisyawati, Nisyawati; Nurdin, Erwin; Supriatna, Jatna
Buletin Kebun Raya Vol 16, No 2 (2013): Buletin Kebun Raya Vol. 16 (2) Juli 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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This study was conducted to collect information regarding carbon storage, particularly the carbon stored in the aboveground biomass as well as in the peat soil. The study site was in a conservation area of the PT National Sago Prima belonging to the PT Sampoerna Agro Tbk. Group. The work was undertaken in January-February 2012. The total aboveground biomass and carbon storage in the research site indicates Â that the conservation area is a secondary peat swamp forest, with the biomass of 149.18 ton/ha and carbon stock of 70.12 ton C/ha. The aboveground biomass and carbon consisted of biomass and carbon of tree (83.97 ton/ha containing 39.47 ton C/ha, respectively), saplings (20.69 ton/ha containing 9.72 ton C/ha) and seedlings and undergrowth plants (0.03 ton/ha containing 0.01 ton C/ha), wood Â necromass (24.06 ton/ha containing 11.31 ton C/ha), and litter (20.44 ton/ha containing 9.61 ton C/ha). An allometric equation was developed for Pandanus atrocarpus Griff. providing an estimated total biomass and carbon of 5.16 ton/ha containing 2.42 ton C/ha. The underground C with the mean peat depth of 5.5 m, mean bulk density ofÂ 0.18 g/cm3, and the mean organic C of 46.6 % was 464.895,94 ton C/ha. In the entire conservation forest area of 541 ha the total aboveground biomassa and carbon storage was estimated to beÂ 80,708.64 ton and 37,934.00 ton C, while the total underground carbon was 238,96 million MT C.

TREE SPECIES DIVERSITY IN THE LOWLAND FOREST OF THE CORE ZONE OF THE BUKIT DUABELAS NATIONAL PARK, JAMBI, INDONESIA RAHMAH, RAHMAH; KARTAWINATA, KUSWATA; NISYAWATI, NISYAWATI; WARDHANA, WISNU; NURDIN, ERWIN
REINWARDTIA Vol 15, No 1 (2016): Vol.15 No.1
Publisher : Research Center for Biology

RAHMAH, KARTAWINATA, K., NISYAWATI, WARDHANA, W. & NURDIN, E. 2016. Tree species diversity in the lowland forest of the core zone of the Bukit Duabelas National Park, Jambi, Indonesia. Reinwardtia 15(1): 11 - 26. â An analysis of the composition and structure of a one-hectare plot of forest on a lowland hill slope in the eastern core zone of the Bukit Duabelas National Park, Jambi, was conducted in October and November 2012. The objective of the study was to obtain a descriptive account of the structure and tree species composition of a lowland forest in the eastern core zone of the park. The plot was divided into 100 subplots ofÂ (10 m Ã 10 m) each and the seedling subplots (5 m Ã 5 m) were nested in the sapling subplots. A total of 414 trees were recorded with DBH (Diameter at Breast Height) ?10 cm, representing 113 species and 38 families, with the total BA (Basal Area)Â of 25.71 m2 and Shannon- Wiener diversity index of 4.29. Prunus arborea with IV (Importance Value) of 19.19 is the dominant species and the other prevalent species were, Dracontomelon dao (IV =11.46) and Hydnocarpus sp. (IV =11.38). A total of 44 species (38.9%) had each density of 1 tree/ha, which may be considered locally rare. Ficus fistulosa had the highest density (24 trees/ha) and Prunus arborea had the highest BA (3.28 m2 = 12.8% of the total). Only 10 species had F (frequency) of 8-18%, of which Hydnocarpus sp. had the highest (18%); the remaining species had F<8%, which may be considered locally rare. Moraceae (IV= 34.05) was the dominant family. The two richest families were Moraceae (11) and Clusiaceae (9). A total of 61 species were registered in the Sumatra checklist and one of them was endemic (Baccaurea dulcis). A total of 13 species are listed in the IUCN Red List. The forest is a developing community after disturbance in the past with poor regeneration. Species with complete representation of trees, saplings and seedlings will probably remain in the forest in the future.

Perilaku Kepatuhan Wajib Pajak Badan HARINURDIN, ERWIN
BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Vol. 16, No. 2
Publisher : UI Scholars Hub

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This research was carried out to research the behavior of the company’s tax compliance especially the big company that was registered in the Large Tax Ofce in Jakarta. The design of this research was the survey research by using the instrument of the questionnaire. The data in the analysis by using Structural Equation Modeling (SEM) with the LISREL program 8,54. This research found proof that was the same as the research beforehand Bradley (1994), Bobek (2003), Lussier (200), Sihaan (2005) and Mustikasari (2007) those are (1) the Perception of the control behavior have positive and signicant the professional intention to the tax compliance. (2) the professional intention have inuential tax positive and signicant of the company’s tax compliance, (3) the Perception of the condition for the company’s have positive and signicant of the company’s tax compliance, (4) the Perception of the company’s facilities have positive and signicant the company’s tax compliance, (5) the Perception of the Climate Organization have positive and signicant of the company’s tax compliance. Whereas the variable (6) the perception of the control behavior have not signicant was directly of the company’s tax complian

Habitat and Distribution Modeling of Prehistoric Hippos (Hippopotamus sivalensis spp.) During Pleistocene in Java Island Andriwibowo Andriwibowo; Adi Basukriadi; Erwin Nurdin
Jurnal Biodjati Vol 6, No 1 (2021): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v6i1.10250

Currently, there are only 2 extant species of hippos including common (Hippopotamus amphibius) and pygmy hippos (Choeropsis liberiensis) . But in prehistoric times, there were several species. During Pleistocene these species were known to migrate to Java Island from Asian Continent and the species was Hippopotamus sivalensis spp. In this regard, this study aimed to model the habitat of H. sivalensis spp., ecology, and biodiversity of Hippopotamus sivalensis spp. based on the fossil record. The model was developed based on the Principal Component Analysis (PCA) method using the R statistical package. The results showed that there were 7 populations of H. sivalensis spp. that lived at various altitudes with an average of 177 m above sea level (95% CI : 123-232 m). According to PCA, there were at least 2 separate populations of H. sivalensis spp. One population occupies the forest while another occupies a habitat close to the coast. Currently the habitat for H. sivalensis spp. already changed. Based on habitat modeling, H. sivalensis spp. inhabit streams with submerged aquatic plants and shrubs and trees growing along river banks.

Habitat Preference Modeling of Prehistoric Giant Shark Megalodon During Miocene in Bentang Formation of West Java Coast Andriwibowo Andriwibowo; Adi Basukriadi; Erwin Nurdin; Muh Aydava Mubarok
Jurnal Biodjati Vol 6, No 2 (2021): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v6i2.14115

In the Miocene era about 20 million years ago, the South Coast of West Java was a sea and habitat for marine organisms including giant sharks Megalodon measuring about 18 meters long. This study aimed to model the habitat preference of the prehistoric gigantic shark Otodus megalodon population based on the fossil record. From fossil teeth, it revealed that the rock layer where the teeth found was Bentang formation from Miocene era. Many fossils of Megalodon had been unearthed from Bentang formation which is part of the South Coast of West Java. The habitat model was developed using the Sea Level Rise Inundation Tool of ArcGIS to estimate the sea depth and Megalodon’s habitat during the Miocene. The length of the teeth of O. megalodon found was ranged from 13 to 19 cm, indicating the presence of juvenile and adult O. megalodon. Based on the model, in the Miocene era, half of West Java was a sea with a depth ranging from 0 to 200 meters. At that time, it was estimated that juvenile O. megalodon occupied waters with a depth of 0-40 meters with an area of 1365 km2. Meanwhile, adult O. megalodon prefers a depth of 80-160 m and the frequency of habitat use increases at a depth of 200 m. The declining population of O. megalodon is associated with climate change and declining prey populations.

Fire Hotspot and Particulate Matter (Pm2.5) Distribution Patterns In Tropical Rainforest Ecosystems Of Batanghari River Basin In July 2021 Andrio A Wibowo; Adi Basukriadi; Erwin Nurdin
Biotropika: Journal of Tropical Biology Vol. 10 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2022.010.01.05

Rainforest in the Batanghari River basin is one of the tropical ecosystems that currently is threatened by deforestation, slash and burn swidden farming that lead to the increased numbers of fire hotspots. The fire hotspots are high in midyear during the dry season when a swidden farming activity starts. Then this study aims to assess the distribution of fire hotspots and its impact in the form of PM2.5 contents. The study was conducted in the rainforest of the Batanghari River basin in midyear in July 2021. The methods to classify the rainforest covers and to detect fire hotspots and PM2.5 contents were based on remote sensing and GIS analysis using Landsat 8 OLI, VIIRS, and MODIS remote sensing imageries. The result showed increasing trends of daily fire hotspot numbers in the rainforest of the Batanghari River basin for one month in July 2021. There were significant differences in the daily average of fire hotspots based on the week (P = 0.006, F = 8.677). The daily average of hotspots in the first week of July 2021 was 1.333 hotspots (95%CI: 0-3.94 hotspots). Whereas in the third and fourth weeks, there were sharp increases in the daily average of hotspots. In the third week, the average of hotspots was 4.333 hotspots (95%CI: 0-9.04 hotspots) and increased almost threefold in the fourth week with 11.000 hotspots (95%CI: 7.61-14.4 hotspots). In the areas where the fire hotspots have occurred, the PM2.5 contents ranged from 30 to 80 Î¼g/m3.

FLORISTIC COMPOSITION AND STRUCTURE OF A PEAT SWAMP FOREST IN THE CONSERVATION AREA OF THE PT NATIONAL SAGO PRIMA, SELAT PANJANG, RIAU, INDONESIA Yusi Rosalina; Kuswata Kartawinata; Nisyawati Nisyawati; Erwin Nurdin; Jatna Supriatna
REINWARDTIA Vol 14, No 1 (2014): Vol. 14 No. 1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v14i1.416

We studied the floristic composition and structure of the logged-over peat swamp forest in the PT National Sago Prima of PT Sampoerna Agro Tbk. group for future management of the conservation area that has been set aside by the company. In January - February 2012, 25 quadrats of 20 m x 20 m were laid out systematically along a transect, thus covering a sampled area of 1-ha. The results showed that the study site was a regenerating and developing secondary peat swamp forests having high plant species richness. The total number of species recorded was 73 species of 38 families, consisting of 49 species (30 families) of trees (DBH? 10 cm ), 42 species (24 families) of saplings (H > 1.5 m and DBH < 10 cm), and 41 species (27 families) of seedlings and undergrowth. Tree density was 550 individuals/ha, and total tree basal area was 18.32 m2. The Shannon-Wiener’s Diversity Index for trees was high (3.05) Two tree species with the highest Importance Values (IV) were Pandanus atrocarpus (IV= 45.86 %) and Blumeodendron subrotundifolium (22.46 %). The tree families with the highest IV were Pandanaceae (45.86), Myrtaceae (40.37), and Dipterocarpaceae (39.20). Forest structure dominated by trees with a diameter below 20 cm amounting to 408 trees/ha (74.05%). and D and E strata with height of less than 20 m, and density of 431 trees/ha (78.36%). Jaccard Similarity index among species, showed strong association between Pandanus atrocarpus and Blumeodendron subrotundifolium and based on this association combined with high IVs, the two parameters of species characterized the forest, hence the forest could be designated as the Pandanus atrocarpus--Blumeodendron subrotundifolium association. Primary forest species with high economic values were still present in the forest. Eleven species can be included in the IUCN Red List, of which Shorea rugosa is in the category of Critically Endangered), Shorea tesymanniana Endangered and Gonystylus bancanus vulnerable, hence they should be protected.

Spatial Distributions and Model Selections of Commercial Estuarine Fish (Sciaenidae) Populations Related to Water Quality, Chl-a, and AML in Musi River mouth, South Sumatra Andriwibowo Andriwibowo; Adi Basukriadi; Erwin Nurdin
3BIO: Journal of Biological Science, Technology and Management Vol. 3 No. 2 (2021)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2021.3.2.1

Estuary and river mouth are essential habitats for many commercial estuarine fishes, including the Sciaenidae family. While recently, estuaries have been threatened by anthropogenic marine litter (AML) transported from nearby land and river. An important type of AML is plastic litter since it takes a long degradation time. In the South Sumatra Province, Indonesia, one of the vital estuaries is the Musi estuary. This paper aims to map the spatial distributions of two Sciaenids, including Panna microdon and Otolithoides pama, and Sciaenid’s environmental covariates, including water quality, chlorophyll a, and plastic litters in Musi estuary and model the correlations of Sciaenids with their covariates. The maps were developed using GIS, and the model was validated using AIC methods. The data were collected from 3 river mouths in the west, central, and east of the Musi estuary. The data showed that the populations of both Sciaenids were higher in the east river mouth rather than in the west. Sciaenid populations were positively correlated with high salinity, DO, chlorophyll a, moderate transparency, and low temperature. A high load of AML’s frequency (7.54 items/m2) and weights (36.8 gram/m2) has reduced both Sciaenid populations in the central river mouth of the estuary. In contrast, low AML loads in the east have correlated with high Sciaenid populations. Model selection based on AIC values shows the best model for P.microdon retained an effect of AML weight with AIC values of 22.591 and 28.321 for O. pama. This concludes that the weight of plastic litter in estuary water was the main limiting factor for Sciaenid populations in Musi.

PRAKTIK GOVERNANCE PERBANKAN INDONESIA DITINJAU DARI ASPEK RISIKO Erwin Harinurdin; Asti Setiawati; Wahyu Nofiantoro
Jurnal Vokasi Indonesia Vol 1, No 2 (2013): July - Desember
Publisher : Program Pendidikan Vokasi Universitas Indonesia

ABSTRACT - Performance -based banking structures Indonesia does not have a normal life charactersbanking and still largely determined by the ideological and political policies of the government. Bankingrecovery by using a very protective manner, such as from the purchase of government bonds with limited ormargin lending and guaranteed withdrawal. Various indicators such as bank loan-deposit ratio ( LDR ) andthe structure of third-party funds that are still dominated by short-term funds such as checking and savingsshows that the bank has not been able to carry out its primary function in the economic system, intermediation.In the framework of the restructuring and recovery of the national banking industry, Bank Indonesia hastaken some of the policies that are considered necessary. Some of these policies include the implementation of theprinciples of risk management (according to Bassel Accor) and Know Your Customer principles. Overall, thepolicy is structured in parent programs are often known as the Indonesian Banking Architecture (API). APIis expected to be the blue print as well as a reference for the Indonesian banking industry structure that isconsidered ideal for BI.Determine the number of actors performing the banking system, such as regulators, supervisors,shareholders, directors, management, internal audit, external auditors, rating agencies and owners of customerfunds. The role of each differ according to the position, accountability mechanisms and social expectations. ButPraktik Governance Perbankan IndonesiaDitinjau dari Aspek RisikoErwin H, Asti S, Wahyu NVolume 1, Nomor 2, pp 1-142the articulation of good governance as a protrusion of the mission, capacity and relationships to be aprerequisite for growth and stability.The method used is descriptive qualitative approach. Based on the results of the study concluded that thepractice of governance in the Indonesian banking system has not been implemented optimally.Keywords: Keywords: Banks, Risk, Governance.

ANALISIS TRANFER PRICING DALAM LENDING ACTIVITIES BANKING DENGAN MENGGUNAKAN ARM’S LENGTH PRINCIPLE Deni D. Kesa; Erwin Harinurdin; Asti Setiawati
Jurnal Vokasi Indonesia Vol 3, No 2 (2015): July - Desember
Publisher : Program Pendidikan Vokasi Universitas Indonesia

AbstractRegulatory motivation is often done by some of the industries associated with strict regulatory supervision, such as banks and insurers. It is associated with one of them in fulfillment of the Capital Adequacy Ratio (CAR) and Solvency Margin ratio which can create incentives for management to make earnings management in the interest of regulators. From previous studies found indications that the bank's management to practice earnings management in order to meet regulatory (regulator) and the investor.API is one of the policy on sole ownership in Indonesian banks (Single Presence Policy). Because these policies will have consequences that could affect the existence of banks in Indonesia and banking services. It is necessary for research on banking transactions of the party - affiliated parties in the use of the principles of fairness and the predominance of business (arm's length principle). The method used in this research is descriptive analysis and the results will be analyzed qualitatively. Keywords: Principles of fairness and the predominance of business, price comparison method, banking.

Co-Authors A.A. Ketut Agung Cahyawan W Adi Basukriadi ADI BASUKRIADI Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi Adrian Zulkarnaen Amanda Zahra Djuanda Andri Wibowo Andri Wibowo Andri Wibowo Andrio A Wibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo arie widodo Asti Setiawati Atus Syahbudin Atus Syahbudin Audithiya Deriano Deni Danial Kesa Elizabeth Adeline Elvira, Ade Irma Gabriella Ria Kirana Gayatri Rejeki Jatna Supriatna Katherine Hedger Kuswata Kartawinata Kuswata Kartawinata KUSWATA KARTAWINATA Mufti Petala Patria Muh Aydava Mubarok Nana Suryana Nasution Nana Suryana Nasution Nasution, Nana Suryana Nenti Rofiah Hasanah Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati, Nofiantoro, Wahyu Rahmah Rahmah Ramadhani, Muhammad Reza Safitri, Karin Amelia Sitiawati Mulyanah Vasenev, Ivan Ivanovich Vindaniar Yuristamanda Putri Vita Meylani Vita Meylani Wisnu Wardhana Wisnu Wardhana Wisnu Wardhana Yusi Rosalina Yusi Rosalina Yusi Rosalina Zeadora Abbya Trisya Zulfi Sam Shiddiq

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