scholarly journals Komposisi, Struktur, Dan Keanekaragaman Jenis Vegetasi Di Jalur Wisata Air Terjun Wiyono Atas Taman Hutan Raya Wan Abdul Rachman Provinsi Lampung

2016 ◽  
Vol 4 (3) ◽  
pp. 83
Author(s):  
Ardiyansa Dwi Saputra ◽  
Indriyanto Indriyanto ◽  
Duryat Duryat
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Species Structure ◽  
Low Density ◽  
Vegetation Density ◽  
Plant Composition ◽  
Forest Park ◽  
Tourism Potential ◽  
The Right ◽  
Important Value Index

Wan Abdul Rachman Grand Forest Park has a potential of natural resources that can be used as natural attractions. One of the tourism potential is The Waterfall of Wiyono Atas.  In addition, plant diversity found around the waterfall also has a potential to support the tourism.   The aims of the research was to figure out the composition of plant species, structure of vegetation based on the density of each growth phase, and diversity of plant along the tourism track. The research was conducted in May—June 2015. Vegetation analysis with aterraced plot was employed as sampling method, that was consisting 44 plots which were 22 plots for left track and 22 plots for right track, and the distance between plots was 80 m.  The analysis of density, frequency, dominance, important value  index, Shannon diversity index, and canopy stratification were used as data analysis. The results showed that the plant composition along the tourism track was made up of 28 species in the left track and 31 species in the right track.  The vegetation density of tourism track was classified as high on seedling phase for 11,600 individu/ha, sapling phase 1,880 individu/ha, and it was classified low density on pole phase for 350 individu/ha, and tree phase for 63.64 individu/ha on the left track, while on the right track, vegetatation density was classified as high on seedling phase for 10,900 individu/ha, sapling phase for 1,140 individu/ha, and classified low density on pole phase for 309.09 individu/ha, and tree phase for 86.36 individu/ha.  The vegetation former, consist of 5 stratum, ranging from stratum A, B, C, D, and E.  The diversity in the tourism track was classified as low, with the value of diversity in the left track of 1.197 and the right track of 1.189. Keywords: composition, diversity, Grand Forest Park, structures

scholarly journals Diversity of Herbaceous Plant in The Utilization Block of Sumber Agung Tahura Wan Abdul Rachman Bandar Lampung

2019 ◽  
Vol 6 (2) ◽  
pp. 31-40
Author(s):  
Widia Paramita ◽  
Yulianty Yulianty ◽  
Bambang Irawan ◽  
Suratman Suratman
Keyword(s):  
Sampling Method ◽  
Herbaceous Plants ◽  
Herbaceous Plant ◽  
Importance Value Index ◽  
Importance Value ◽  
Forest Park ◽  
Plot Size ◽  
Belt Transect ◽  
Important Value Index ◽  
Literature Data Analysis

Diversity is a variety of species that are similarly formed and the abundance of a species. The purpose of this study is to determine the diversity and characteristics of herbaceous plants in Sumber Agung Resort Bandar Lampung Wan Abdul Rachman (WAR) forest park. The method used is a purposive sampling method at several points, done by direct observation using the Belt Transect method with plot size 1x1 m² with a distance between plot 100 m² then the picture of herbaceous plants taken as documentation material. The species is then taken for identification regarding some literature. Data analysis by measuring the parameters of vegetation using the analysis of density and frequency variables which then determine the Importance Value Index (INP). Observation of herbaceous plants was done by identifying and making herbarium. The results of the study are, there are 45 species of herbaceous plants that have been identified, consisting of 22 families. The highest density of herbaceous species that are found belongs to Asteraceae, Solanaceae, Araceae, Poaceae, Zingiberaceae, and Euphorbiaceae. Characteristics of herbaceous growth are influenced by air temperature, soil moisture, and soil pH. The highest Important Value Index (INP) in herbaceous plants belongs to Family Poaceae; Lophatherium gracile with an important value index (INP) 31.43%.

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 KEANEKARAGAMAN JENIS VEGETASI TINGKAT POHON DI HUTAN ADAT GUNUNG SOKA DUSUN PADANG SEBATIK KECAMATAN AIR BESAR KABUPATEN LANDAK

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
. Tarsius ◽  
Gusti Hardiansyah
Keyword(s):  
Diversity Index ◽  
Species Abundance ◽  
Forest Tree ◽  
Transect Line ◽  
A Value ◽  
Result Show ◽  
Indigenous Forest ◽  
The Right ◽  
Individual Trees ◽  
Important Value Index

Forest is an ecosystem unit in the form of a stretch of land containing biological natural resourcesdominated by trees in its natural environment which can not be separated from the life of indigineous communities. This study aims to find out the diversity of vegetation types of stand composition trees in Gunung Soka Indigenous Forest. This study used transect method and the transect lineswere determined purposively. There were 4 (four) transect lines with 500 m lenght, 10 m wide to the left and 10 m wide to the right. The observation plot was 20 m, and there were 25 plots, so the total was 1 ha. There were 100 plots to study with 4 transect line so the total area was 4 ha. The result show that there are 23 trees vegetation consists of 13 family, 741 of individual trees in Gunung Soka Indigenous Forest. The highest important value index (INP) was found in engkabang bukit (Shorea pinanga Scheff.) with a value of 82,25, while the lowest important value index was found in keraci (Quercus lucida Roxb.) with a value of 1,42. The Dominance index (C) of trees vegetation is 0,17525 or C = 1 ,which shows that there are more than one dominant tree. The Diversity index (DS) of trees vegetation is closte to 1, which shows moderate diversity of species. The Highest species Abundance index (e) of tree vegetation was found in line 1 with a value of 0,9493, meanwhile the lowest value was found in line 2 with a value of 0,5764.Kata Kunci : Diversity,indigenous forest, tree vegetation

scholarly journals Identification of highland peat vegetation in the Sub-district of Lintong Nihuta, Humbang Hasundutan Regency, North Sumatera, Indonesia

2021 ◽  
Vol 912 (1) ◽  
pp. 012027
Author(s):  
J M Hutagaol ◽  
Bintang ◽  
B Hidayat
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Current Status ◽  
Survey Method ◽  
Analysis Method ◽  
Vegetation Analysis ◽  
Minimum Area ◽  
Important Value Index ◽  
North Sumatra ◽  
Dicranopteris Linearis

Abstract This study aims to identify the structure, composition, and current status of highland peat vegetation in the Lintong Nihuta Sub-district, Humbang Hasundutan Regency, North Sumatra Province. The research conducted from December 2020 to April 2021. This study uses a survey method. The plots were laid using the purposive sampling method considering that the observed plots were those with naturally growing vegetation and accessible terrain. Sampling used the double plot vegetation analysis method with a plot size of 4 x 4 m for seedlings and 20 x 20 m for saplings obtained by measuring the minimum area of the plot. The data obtained were analyzed for frequency calculations, important value index (IVI), and Shannon-Weiner diversity index (H’). The results of the vegetation analysis showed that from the four existing growth classes, only two growth classes were found at the research site, namely seedlings and saplings with a total of 23 species. The vegetation composition is dominated by shrub habitus which indicates that this peatland has been degraded. The dominant species in the study site were Lepinoria mucronata Rich. and Dicranopteris linearis (Burm.) F. Underw. The value of the biodiversity index (H’) is 0.8 with a low criterion which means the vegetation ecosystem at the study site is unstable

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 Diversity of Bivalvia, Gastropoda and Holothuroidea in Intertidal Zone of North Javan Sea Coastal, Indonesia

2021 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
V. Rohmayani ◽  
E. Tunjung Sari M. ◽  
Nurhidayatullah Romadhon ◽  
H. Ichda Wahyuni
Keyword(s):  
Intertidal Zone ◽  
Sampling Method ◽  
Diversity Index ◽  
Total Sample ◽  
Target Species ◽  
Transect Sampling ◽  
Density Index ◽  
Zone Ii ◽  
Important Value Index

This study aims to know diversity of Bivalvia, Gastropoda and Holothuroidea. Measures used in this study were Density Index (D), Diversity Index (H’), Evennes Index (E’) dan Important Value Index (INP). This study used transect sampling method by 1 × 1 meter quadrant. Target species of this study were member of Bivalvia, Gastropoda and Holothuroidea that inhabit in intertidal zone of north Javan Sea coastal. This intertidal zone was divided into 3 zone; zone I is 50 meter, zone II is 75 meter and zone III is 100 meter from coastal line to sea. Total sample of this species were 1064 individual, that divided into 7 species of Bivalvia, 10 species of Gastropoda and 2 spesies of Holothuridea. The highest Diversity Index was for Gastropoda in zone I (253 individual/m2). Diversity Index was in moderate category (1< H’ < 2) while the zone III was the highest. Evennes Index of all zones were relatively similar. The highest Important Value Index was species of Clypeomorus clypeomorus, that has value 53,06%.

STRUKTUR KOMUNITAS MAKRO ALGA DI PESISIR PULAU KECAMATAN BULANG

SIMBIOSA ◽  
2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Notowinarto Notowinarto ◽  
Ramses Ramses ◽  
Mulhairi Mulhairi
Keyword(s):  
Community Structure ◽  
Diversity Index ◽  
Algal Species ◽  
Algal Communities ◽  
Marine Life ◽  
Ph Values ◽  
Abundance Patterns ◽  
Coastal Marine ◽  
Temperature Parameter ◽  
Important Value Index

Bulang districts Batam Islands of  Riau province (Riau Islands), its consists of many islands with as well as having the potential diversity of coastal marine life in particular kinds of macro algae or seaweed. Conducted research aimed to determine the structure of macro- algal communities in the intertidal zone islands. The results of the identification of algal species found 16 species are: the Order of Chlorophyceae as 6 spesies; Order Phaeophyceae as 2 spesies; and Order Rhodophyceae as 8 spesies. The community structure at the five stations showed the highest values were found in the island of dominance Cicir (D ' = 0.79) , uniformity index values on Tengah Island (E ' = 0.99) , while the island Balak had the highest diversity index (H ' = 0.88) , with the abundance patterns of population structure on the island is pretty good Central . Results of correlation analysis of regression between IVI types of algae with the conditions of environmental quality suggests that there is a significance (Fhit ˃ F table and the value of r = > 90 %) between IVI algae Halimeda sp and Cryptarachne polyglandulosa at each station with a temperature parameter surface (⁰C) , depth temperature (⁰C) and pH values. Keywords : Algae, Community Structure, Important Value Index.

Collaborative design in public services: a wicked problem-reframing case

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Patrícia Moura e Sá ◽  
Catarina Frade ◽  
Fernanda Jesus ◽  
Mónica Lopes ◽  
Teresa Maneca Lima ◽  
...  
Keyword(s):  
Collaborative Design ◽  
Success Factors ◽  
Central Government ◽  
Wicked Problem ◽  
Low Density ◽  
Structured Interviews ◽  
Content Type ◽  
Critical Success ◽  
Definition Of ◽  
The Right

PurposeWicked problems require collaborative innovation approaches. Understanding the problem from the users' perspective is essential. Based on a complex and ill-defined case, the purpose of the current paper is to identify some critical success factors in defining the “right problem” to be addressed.Design/methodology/approachAn empirical research study was carried out in a low-density municipality (case study). Extensive data were collected from official databases, individual semi-structured interviews and a focus group involving citizens, local authorities, civil servants and other relevant stakeholders.FindingsAs defined by the central government, the problem to be addressed by the research team was to identify which justice services should be made available locally to a small- and low-density community. The problem was initially formulated using top-down reasoning. In-depth contact with citizens and key local players revealed that the lack of justice services was not “the issue” for that community. Mobility constraints and the shortage of economic opportunities had a considerable impact on the lack of demand for justice services. By using a bottom-up perspective, it was possible to reframe the problem to be addressed and suggest a new concept to be tested at later stages.Social implicationsThe approach followed called attention to the importance of listening to citizens and local organisations with a profound knowledge of the territory to effectively identify and circumscribe a local problem in the justice field.Originality/valueThe paper highlights the limitations of traditional rational problem-solving approaches and contributes to expanding the voice-of-the-customer principle showing how it can lead to a substantially new definition of the problem to be addressed.

scholarly journals Kemampuan Unit Usaha Yayasan Nurul Hayat Dalam Menunjang Biaya Operasioanal Lembaga Amil Zakat

2015 ◽  
Vol 1 (2) ◽  
pp. 92
Author(s):  
Novalia Nastiti ◽  
Imron Mawardi
Keyword(s):  
Data Collection ◽  
Sampling Method ◽  
Qualitative Approach ◽  
Business Unit ◽  
Operational Cost ◽  
Case Study Method ◽  
Structured Interviews ◽  
Descriptive Case Study ◽  
The Right

Amil zaka in zaka institutions has the right as one of eight ashnaf. Their rights are usually used by zaka institutions as operational cost. However, not all of the intitutions which manage zaka take amil’s right, one of them is Yayasan Nurul Hayat. This institution does not take amil’s right and it is independent in its operational cost. To support this operational cost, Yayasan Nurul Hayat establish business unit with utilize its profit.This study aimed to discover the capability of business unit in supporting operational cost of Yayasan Nurul Hayat. This study used a qualitative approach with descriptive case study method. The selections of informant are using purposive sampling method. Data collection was conducted by semi-structured interviews and documentation. This data is analyzed using descriptive method.The result of this study shows that Yayasan Nurul Hayat Employments’ Salary is taken from business unit’s profit. It is also used to give bonus for employments and grow the business unit of Yayasan Nurul Hayat up. From the result of this study, it can be concluded that the business unit which is developed has great capability to support operational cost of Yayasan Nurul Hayat.

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).

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