scholarly journals Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

2020 ◽  
Vol 8 (3) ◽  
pp. 297
Author(s):  
Rima Herlina Setiawati Siburian ◽  
Mei Trirbo ◽  
Rusdi Angrianto
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Systematic Sampling ◽  
Natural Forests ◽  
Site Characteristics ◽  
West Papua ◽  
Systematic Sampling Method ◽  
Relationship Of ◽  
Important Value Index ◽  
The Relationship

Agathis labillardieri Warb is one of the copal-producing tree species that only distributed in Papua. In connection with regional development, the existence of this species has been a significant concern. Therefore, it is necessary to study the characteristics of A. labillardieri Warb in their natural growing areas in the natural protected forest of Siwi Momiwaren. The data were collected by using the line plot method systematic sampling method with nesting plot. The data were then analyzed to determine the species relative density, frequency, dominance, important value index (IVI), and growth characteristics. The results showed that A. labillardieri Warb had the highest IVI at all levels of growth, with the highest diversity index at the seedling level of 3,49. When viewed from the relationship of the presence of species with the characteristics of the growing site, the content of Mg and Na significantly affected the presence of this species in the natural forest area of South Manokwari Siwi Momiwaren.Keywords: Agathis labillardieri Warb, growing site characteristics, Siwi Momiwaren, West Papua

scholarly journals Comparison of several methods of stands inventory prior to logging towards the yield volume of mangrove forest in Bintuni Bay, West Papua Province, Indonesia

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Dr. Istomo ◽  
Cecep Kusmana ◽  
Fifi Gus Dwiyanti ◽  
Zulfikar Malik
Keyword(s):  
Mangrove Forest ◽  
Sampling Method ◽  
Allometric Equation ◽  
Systematic Sampling ◽  
Mangrove Forests ◽  
Modified Method ◽  
West Papua ◽  
Specific Formula ◽  
The Difference ◽  
Systematic Sampling Method

Abstract. Istomo, Kusmana C, Dwiyanti FG, Malik D. 2020. Comparison of several methods of stands inventory prior to logging towards the yield volume of mangrove forest in Bintuni Bay, West Papua Province, Indonesia. Biodiversitas 21: 1438-1447. The difference between the estimated volume and the actual harvested volume is the reason that mangrove forest management is unsustainable. To overcome this discrepancy, it is important to do what so called Inventarisasi Tegakan Sebelum Penebangan (ITSP) or stands inventory prior to logging for logging concession. However, the study on suitable ITSP methods for mangrove forests has been limited. This study aims to assess three ITSP methods (namely Line Strip Sampling Method, Line Systematic Sampling Method, and CIFOR’s Modified Method) using two allometric equations (i.e., equation developed specifically by a logging concession and equation developed that has specific formula for each species), and to select the combination of method and allometric equation that produce the highest accuracy for logging concession in mangrove forest, especially in Bintuni Bay, West Papua. The results showed that CIFOR’s Modified Method produces the lowest discrepancy between the estimated volume and the actual harvested volume, followed by Line Strip Sampling Method. In addition, regardless the ITSP methods employed, the allometric equation by Cole et al. (1999) outperforms the equation developed specifically by a logging concession. While producing the lowest discrepancy with plot size is the smallest than other methods, CIFOR’s Modified Method has a disadvantage when applied in the field due to difficulties in making a circular plot. As such, we recommend ITSP method to be used is the Line Strip Sampling method with allometric equation.

Potensi dan Keragaman Tumbuhan Bawah Non-Kayu Di Lahan Bera Kampung Womnowi Distrik Sidey Manokwari Papua Barat

2021 ◽  
Vol 23 (1) ◽  
pp. 63-70
Author(s):  
Slamet Arif Susanto ◽  
Heru Joko Budirianto ◽  
Agatha Cecilia Maturbongs ◽  
Simeon Abdi Putra
Keyword(s):  
Species Composition ◽  
Sampling Method ◽  
Woody Plant ◽  
Diversity Index ◽  
Floristic Composition ◽  
Fallow Land ◽  
West Papua ◽  
Species Composition Of Vegetation ◽  
Papua Barat ◽  
Important Value Index

During successionally process the non-woody plant understory cover related to dominance of tree vegetation around successional land. Fallow land are models of secondary successional are present the land of New Guinea (Papua). The study was conducted at fallow land 15 years old Womnowi, Sidey Manokwari West Papua to determine the important value index (IVI), diversity, evenness, and describe potential species composition of vegetation non-woody plant understory cover. We used continouse line sampling method when field inventory and make purposive sampling 2x2 m each a plot 20x20 m. We had found 749 individual part of 41 species, highest IVI are Sellaginella wyldenowii (25.04%), Selaginella sp (23.44%)., and Spathoglottis plicata (14.60%), diversity index Shannon-Weiner (Hʹ) is 3.13, and evenness (E) is 0.84. We also had found orchids and some unique Arecaceae and some species can used by local wisdom like Diplazium esculentum and Pothos spp. Based the floristic composition of analysis vegetation we temporary conclude non-woody plant understory cover are shade plant.

scholarly journals The Relationship between Work Motivation, Burnout and Intention to Leave for the Top Level Managers of Garment Industry (A Case Study of Indian Garment Industry)

2013 ◽  
Vol 3 (4) ◽  
pp. 128 ◽  
Author(s):  
Seema Qureshi
Keyword(s):  
Sampling Method ◽  
Work Motivation ◽  
Intention To Leave ◽  
Garment Industry ◽  
Total Work ◽  
Review Of Literature ◽  
Deep Insight ◽  
Relationship Of ◽  
The Relationship

Managers play an important role in organizations. They are the persons who formulate and implement policies, plans etc in the organization. Managers are the first to be contacted for suggestions with regard to overall information about the organization. Taking into consideration the importance of managers in the organization and a critical review of literature which revealed that the study on work motivation, burnout and intention to leave has not been conducted so far on the top level managers of garment industry of Delhi and NCR, the researcher found a gap to be filled by  conducting investigation on this sample for the variables in question. So the sample of the present study consists of top level managers of garment industry of Delhi and NCR. Thus, a convenient sampling method was used for drawing the sample from 60 garment export houses of Delhi and 40 of NCR. This paper gives a deep insight of work motivation, burnout and intention to leave for the top level managers of the garment industry of Delhi/NCR. In this paper we have checked the relationship of all dimensions of work motivation with the dimensions of burnout and intention to leave and have observed that all dimensions of work motivation have some more or less relationship with each dimension of burnout but neither of the dimensions of work motivation or total work motivation have any relationship with intention to leave. So even if top level managers leave their current job they don’t leave because of lack of work motivation.

scholarly journals The Relationship of Megazoobenthos Association with Seagrass Ecosystem Conditions in Ujung Genteng Waters, Sukabumi

2020 ◽  
pp. 1-10
Author(s):  
Gilang Primanagita Rachman ◽  
Indah Riyantini ◽  
Zahidah Hasan ◽  
Herman Hamdani
Keyword(s):  
Diversity Index ◽  
Close Association ◽  
Strong Relationship ◽  
Survey Method ◽  
Association Pattern ◽  
Seagrass Ecosystem ◽  
Relationship Of ◽  
The Relationship ◽  
Seagrass Density ◽  
Diadema Setosum

Seagrass beds in Ujung Genteng waters are one of the shallow marine ecosystems that have relatively high biodiversity. Seagrass ecosystem as one of the coastal ecosystems in these waters has a diversity of marine life that is associated with it. The purpose of this study was to establish the association pattern and the correlation of mega zoobenthos to seagrass ecosystem conditions. The method used was a survey method by conducting a survey direct observation of the stations that have been determined.  Three seagrass species were identified, namely: Thallasia hemprichii, Cymodoceae rotundata and Enhalus acoroides. The highest density of seagrass was found in station 2 with the type of seagrass Thallasia hemprichii as much as 207 ind/m2. Fifteen mega zoobenthos species were identified representing 3 phyla. Species Mega zoobenthos which is most commonly found in Ujung Genteng waters is Ophiothrix fragilis, Ophiocoma erinaceus, and Diadema setosum. The mega zoobenthos Diversity Index at the observation station is included in the medium category that is 2.33-2.66 and the evenness index is 0.63-0.84. Correlation of seagrass density with mega zoobenthos obtained by 0.92 shows that there is a very strong relationship between seagrass density with mega zoobenthos. The result shows that there are 4 patterns of close association and 2 patterns of very close association. Ophiocoma erinaceus of the ophiuroidea class has a pattern of very close positive associations with seagrass Cymodoceae rotundata and Dendrodoris sp of the order nudibranchia has a pattern of very close negative associations with seagrass Cymodoceae rotundata.

scholarly journals Vegetation analysis and plant diversity in Pinus Jantho Forest (PJF) nature reserve, Aceh Besar

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
HILMINA ITAWAMERNI ◽  
SAIDA RASNOVI ◽  
ZUMAIDAR ZUMAIDAR
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Nature Reserve ◽  
Diversity Index ◽  
Systematic Sampling ◽  
Vegetation Analysis ◽  
High Level ◽  
Piper Aduncum ◽  
Important Value Index ◽  
Pinus Merkusii

Pinus Jantho Forest (PJF) Nature Reserve has unique characteristics and distinctive ecosystem that plays an important role in the preservation of germplasm and the protection of natural resources. The sustainability of the PJF Nature Reserve is strongly determined by vegetation of its constituents. Therefore, an effort is needed to help its management properly, one of which is by knowing the diversity of plants that make up the community in PJF Nature Reserve. The purpose of this research is to analyze the composition and diversity of plant species in PJF Nature Reserve. Data collection and sampling were done using multiple square method. The plots were laid out by systematic sampling. PJF Nature Reserve composed of 111 species from 46 family. The seedling and understorey have the highest number individuals (1028 in total). Then there are 240 individuals at sapling level, 108 individuals at pole, and 72 individuals for tree.  The Euphorbiaceae family has the largest number of species (11 species). The highest Important Value Index (IVI) for seedlings and understorey, sapling and pole, and tree respectively were Chloranthus elatior (11.09%), Piper aduncum (21.90% and 19.32%), and Pinus merkusii (25.52%). The Diversity Index indicates a high level of plant species diversity (3.25-3.63).

scholarly journals Pengaruh Pemahaman Peraturan Perpajakan Terhadap Kepatuhan WPOP Dengan Preferensi Resiko Sebagai Variabel Pemoderasi

2019 ◽  
pp. 109
Author(s):  
Putu Devi Ayu Utari ◽  
Putu Ery Setiawan
Keyword(s):  
Regression Analysis ◽  
Sampling Method ◽  
Tax Compliance ◽  
Risk Preference ◽  
The North ◽  
Analysis Technique ◽  
Minimum Number ◽  
Questionnaire Method ◽  
Relationship Of ◽  
The Relationship

Badung Utara, Badung Utara, Badung Utara. To find out whether the preference must be able to moderate the relationship between understanding of tax regulations on individual taxpayer regulations in the North Badung region. The minimum number of samples used in the study were 100 (one hundred) individual taxpayers at North Badung KPP Pratama. This study uses the accidential sampling method. The method of data collection uses the questionnaire method. The data analysis technique used is Moderated Regression Analysis (MRA). The results obtained related to understanding tax regulations, positive and significant to taxpayer obligations, as well as risk preferences can moderate the relationship of understanding tax regulations with taxpayer assistance. Keywords: Understanding of Taxes, Tax Compliance, Risk Preference.

scholarly journals Developing a systematic sampling method for earthworms in and around deadwood

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Frank Ashwood ◽  
Elena I. Vanguelova ◽  
Sue Benham ◽  
Kevin R. Butt
Keyword(s):  
Sampling Method ◽  
Systematic Sampling ◽  
Systematic Sampling Method

scholarly journals Internet Usage and Academic Achievement of Adolescents of West Bengal: An Exploratory Study

2017 ◽  
Vol 7 (3) ◽  
pp. 270
Author(s):  
Bikram Maiti
Keyword(s):  
Academic Achievement ◽  
Sampling Method ◽  
West Bengal ◽  
Internet Usage ◽  
Different Types ◽  
Negative Effect ◽  
Higher Secondary Education ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

Present study is a process to find out the effect of internet usage on the academic achievement of adolescents of West Bengal, specifically on the students of Higher Secondary level under the West Bengal Council of Higher Secondary Education. To study the impact thoroughly the investigator divided internet usage into three categories- Educational usage, Communicational usage and Recreational usage. Intending to fetch out the relationship of different types of internet usage with students’ academic achievement as well as the gender difference regarding the internet usage, the researcher formulated some null hypotheses. To go through this study the investigator administered an internet usage questionnaire on 138 class XI students, selected by purposive sampling method from different schools under WBCHSE. Percentage of marks obtained by the adolescents in Madhyamik examination was treated as the academic achievement by them. The investigator used Pearson’s Product Moment Correlation Coefficient and Independent Sample‘t’ test for testing the hypotheses. By the end of the study it was seen that Educational usage and Communicational usage of internet had no effect on their academic achievements, but there was negative effect of Recreational internet usage on their academic achievement. Also, boys and girls differed significantly in respect to their different internet usage.

scholarly journals PENGARUH MEKANISME CORPORATE GOVERNANCE TERHADAP KINERJA KEUANGAN PERUSAHAAN KELUARGA DI INDONESIA

2020 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Adhitya Rechandy Christian Santoso
Keyword(s):  
Corporate Governance ◽  
Data Analysis ◽  
Board Of Directors ◽  
Sampling Method ◽  
Stock Exchange ◽  
Return On Assets ◽  
The Board Of Directors ◽  
Relationship Of ◽  
The Relationship ◽  
Positive Effect

This study discusses the application of corporate governance to the performance of family companies in Indonesia. The relationship of corporate governance in this study was proxied with an independent board of commissioners, the size of the board of directors, and the size of the audit board. The measurement of the financial performance of this study uses Return On Assets (ROA) with a sample of research companies listed on the Indonesia Stock Exchange in the 2014-2018 period.The sampling method in this study uses purposive sampling and data analysis using multiple linear regression with the help of SPSS 21.The results of data analysis, the proportion of independent commissioners and the size of the board of directors had a significant positive effect on the variable size of the audit board not having a significant effect.

scholarly journals Hubungan Stres dan Kesejahteraan (Well-being) dengan Moderasi Kebersyukuran

2019 ◽  
Vol 5 (2) ◽  
pp. 178
Author(s):  
Erlis Manita ◽  
Marty Mawarpury ◽  
Maya Khairani ◽  
Kartika Sari
Keyword(s):  
Sampling Method ◽  
Negative Relationship ◽  
Well Being ◽  
Significant Negative Relationship ◽  
Stress Levels ◽  
Age Range ◽  
Relationship Of ◽  
The Impact ◽  
Mental Well Being ◽  
The Relationship

This study aimed to determine the correlation of stress and well-being with gratitude moderation in early adults in Aceh. The method of this research was carried out using a quantitative approach. This study involved 349 early adults (264 female, 85 male) with age range of 20-40 years (M = 22.20) selected through the nonprobability sampling method with incidental sampling techniques. Individual’s stress levels were measured using the Perceived Stress Scale, well-being was measured using the Warwick-Edinburgh Mental Well-being Scale, and gratitude was measured using the Skala Bersyukur Indonesia. Data were analyzed using moderated regression analysis to test the research hypothesis. The results showed that stress had a significant negative relationship to well-being (β1 = -0.788; p < 0.05), then gratitude was able to moderate the relationship of stress and well-being (β3 = 3.257; p < 0.05). This study showed that there was a correlation between stress and well-being with gratitude moderation. It meant that grateful people focus on things that are grateful for every day, so that the impact on low stress levels and can improve individual well-being.

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