BIODIVERSITICAL CHARACTERIZATION AND BIOCHEMICAL EVALUATION OF NATURALIZED SHRUB, ATI BALA (ABUTILON INDICUM) IN AGRA (UP) INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
ATUL TIWARI
Keyword(s):  
In Situ Conservation ◽  
Similarity Index ◽  
Distribution Patterns ◽  
Botanical Garden ◽  
Wiener’S Index ◽  
The Status ◽  
Biochemical Evaluation ◽  
Index Value ◽  
Natural Herb ◽  
Abutilon Indicum

For the study of Biodiversity characterization and Biochemical analysis, the natural herb was transplanted at Botanical Garden, R.B.S. College, Agra. For the study of species diversity at four natural sites of Agra district, four formulae were used to study the maximum and minimum diversity of species at its natural sites. Shannon Wienner’s Index, Menhinick’s Index, Margalef’s Index value at four different sites was given in Table -1. These values determined the biodiversity variation at natural sites in Abutilon indium. The values of Moisture contents (%), Oil content (%) and Protein concentration (μ”/ml) in Abutilon indicum were also determined with variation at biochemical level Table -2. With the help of SDS-PAGE, in four samples of seeds of Abutilon indicum from four natural sites ( Bichpuri site -Lane 1, Kailash site -Lane 2, Kheria site - Lane 3, Chhalesar site - Lane 4). The total no. of protein bands showed diversity in Abutilon indicum plant in Table: 3. Shannon- Wiener’s Index, Menhinick’s Index, Margalei’s Index and Similarity Index (S) were applied to determine the distribution patterns and concentrations of wild species to pinpoint the diversity built-up and variation in the gene pool and identifying sites for in-situ conservation. The present work determined the status of diversity of experimental herb at particular four sites the need to conserve this diversity for current and future use.

scholarly journals PERBANDINGAN STRUKTUR DAN KOMPOSISI MAKROALGA DI PANTAI DRINI DAN PANTAI KRAKAL

2020 ◽  
Vol 13 (2) ◽  
pp. 75-86
Author(s):  
Lukman Aziz ◽  
Abdul Razaq Chasani
Keyword(s):  
Random Distribution ◽  
Diversity Index ◽  
Similarity Index ◽  
Distribution Patterns ◽  
Ulva Lactuca ◽  
Morphological Description ◽  
Dominance Index ◽  
Importance Index ◽  
Index Value ◽  
Important Value Index

ABSTRACTDrini and Krakal Beach are two beaches in the Gunungkidul area which are crowded with visitors. The high human activity, directly and indirectly will affect marine organisms in the region, one of them is macroalgae. The purpose of this study is to find out information on diversity and distribution patterns of macroalgae in the Drini and Krakal Coast waters. Data was collected on 15 -17 September 2019. The method used in sampling is the quadratic transect method using a 1x1 m grid plot. At each location 25 plots were taken and then the data were analyzed in the form of important value index, diversity index, similarity index, dominance index and distribution patterns. Morphological description was also carried out for the characterization and manufacture of herbarium for sample identification. For identification, the method used was to compare samples with photographs, sketches, herbarium and descriptions from identification books. Macroalgae found in both locations consisted of 29 species, 23 genera, 21 families, 14 orders and 3 classes. The highest diversity is found in Rhodophyta phyla with 17 species and phylum with the lowest diversity is Heterokontophyta with four species. Drini Beach has a diversity index value and a higher similarity index compared to Krakal Beach. While the dominance index is higher in Krakal Beach. The species with the highest importance index in both locations is Ulva lactuca. On Drini Beach there are 14 species with random distribution patterns and 7 species with cluster distribution patterns while on Krakal Beach there are 16 species with random distribution patterns and 3 species with clumped distribution patterns.Keywords: Distribution Pattern, Diversity, Gunungkidul, Marine MacroalgaABSTRAKPantai Drini dan Krakal merupakan dua pantai diwilayah Gunungkidul yang ramai pengunjung. Tingginya aktifitas manusia, secara langsung manupun tidak langsung akan mempengaruhi organisme laut yang ada di wilayah tersebut, salah satunya makroalga. Tujuan dari penelitian ini adalah untuk mengetahui informasi keanekaragaman dan pola distribusi makroalga yang berada di wilayah perairan pantai Drini dan Pantai Krakal. Pengambilan data dilakukan pada 15-17 September 2019. Metode yang digunakan dalam pengambilan sampel yaitu metode transek kuadrat dengan menggunakan grid plot 1x1 m. Pada setiap lokasi diambil 25 plot kemudian dianalisis datanya berupa indeks nilai penting, indeks keanekaragaman, indeks kesamaan, indeks dominansi dan pola distribusi. Selain itu juga dilakukan deskripsi morfologi untuk karakterisasi dan pembuatan herbarium untuk identifikasi sampel.Untuk identifikasi, metode yang digunakan adalah dengan membandingkan sampel dengan foto, sketsa, herbarium dan deskripsi dari buku identifikasi. Makroalga yang ditemukan di kedua lokasi terdiri dari 29 spesies, 23 genus, 21 famili, 14 ordo serta 3 kelas. Keanekaragaman tertinggi terdapat pada filum Rhodophyta dengan 17 spesies dan filum dengan keanekaragaman terendah yaitu Heterokontophyta dengan empat spesies. Pantai Drini memiliki nilai indeks keanekaragaman dan indeks kesamaan yang lebih tinggi dibandingkan dengan Pantai Krakal. Sedangkan indeks dominansi terhitung lebih tinggi di Pantai Krakal. Spesies dengan indeks nilai penting tertinggi di kedua lokasi yaitu Ulva lactuca. Di Pantai Drini terdapat 14 spesies dengan pola distribusi acak dan 7 spesies dengan pola distribusi mengelompok sedangkan di Pantai Krakal terdapat 16 spesies dengan pola distribusi acak dan 3 spesies dengan pola distribusi mengelompok.Kata kunci: Pola Distribusi, Keanekaragaman, Gunungkidul, Makroalga laut

scholarly journals Local perceptions on the status, values and conservation and ethnobotanical implications of medicinal and multipurpose plants in and around selected church forests in central Ethiopia

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Eguale Tadesse
Keyword(s):  
Focus Group ◽  
Plant Species ◽  
Group Discussion ◽  
In Situ Conservation ◽  
Similarity Index ◽  
Traditional Healers ◽  
Fuel Wood ◽  
Central Ethiopia ◽  
The Status ◽  
Development Agents

Societies have varied attitude and perception on the forest resources nearby them. Ethnobotanical knowledge should be integrated with biophysical studies in order to be used for managing and conserving forests. The objectives of the study were to assess the existing knowledge about the uses of plant species and to examine the plant species. Three sites were selected around central Ethiopia encompassing three church forests. Focus group discussion, questionnaire-based social survey and vegetation inventory were undertaken. The focus group discussants were selected from traditional healers, elders of the society, development agents, and people who are knowledgably about the vegetation of the areas.  Voucher specimens were collected for those species difficult to identify . The data analysis was done by descriptive statistics using Excel 2010 and SPSS v20. The results indicated agricultural expansion, charcoal making and fuel wood as the major causes of deforestation in Site 1, Site 2 and Site 3 respectively. Religious preaching was stated by group discussants as the most effective solution to reverse the degradation and to protect the church forests. The plant species have varied uses as traditional medicine, food, construction wood, household utensils, and firewood but higher percent of the mentioned species were used either for human or livestock medicine. Sørensen similarity index indicated Site 1 and Site 2 have 12.5%, Site 1 and Site 3 have 10.9% and Site 2 and Site 3 have 43.5 % similarities. Documenting the wealth of indigenous knowledge and in situ conservation of the plant species are key recommendations. 

scholarly journals Identification of Dendrobium (Orchidaceae) in Liwa Botanical Garden Based on Leaf Morphological Characters

2021 ◽  
Vol 6 (1) ◽  
pp. 59423
Author(s):  
Mahfut Mahfut ◽  
Tundjung Tripeni Handayani ◽  
Sri Wahyuningsih ◽  
Sukimin Sukimin
Keyword(s):  
Ornamental Plants ◽  
Similarity Index ◽  
Botanical Garden ◽  
Morphological Characters ◽  
Leaf Length ◽  
Morphological Variations ◽  
Phenetic Relationships ◽  
Leaf Arrangement ◽  
Index Value ◽  
Character Classification

Orchid is one of the most popular ornamental plants in the world. One of the orchid genera that is collected in a large number and known to have high morphological variations in the Liwa Botanical Garden is Dendrobium. However, to date, many Dendrobium collections have not been identified. Given the urgency of identification and the limitations of specimens in the field, especially flower organs, this study is important. This study aims to determine variations in morphological characters, phenetic relationships, and to identify Dendrobium collections based on leaf morphological characters in the Liwa Botanical Garden. Five accessions of Dendrobium were collected, namely CAT140, CAT 144, CAT 271, CAT 274, and IR015. Observation of 11 morphological characters leaves showed that leaf had high variations. The phenetic relationship based on the Gower similarity value and the UPGMA method shows that the Dendrobium in the Liwa Botanical Garden can be classified into 2 main groups formed with a similarity index value of 0.813. Based on Principle Component analysis values, it is known that the characters that have a large influence on grouping are the ratio of leaf length and width, leaf cross section, and leaf arrangement. The phenetic dendrogram topology is supported by the morphological character classification. The results of this study are expected to be basic information in the identification of natural orchids and conservation efforts in the Liwa Botanical Garden.

scholarly journals Status of the Ex Situ and In Situ Conservation of Brazilian Crop Wild Relatives of Rice, Potato, Sweet Potato, and Finger Millet: Filling the Gaps of Germplasm Collections

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 638
Author(s):  
Marcelo B. Medeiros ◽  
José F. M. Valls ◽  
Aluana G. Abreu ◽  
Gustavo Heiden ◽  
Suelma Ribeiro-Silva ◽  
...  
Keyword(s):  
Finger Millet ◽  
Ex Situ Conservation ◽  
Gap Analysis ◽  
In Situ Conservation ◽  
Germplasm Collection ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Ex Situ ◽  
The Status

This study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives” supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O’Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa’s ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country.

scholarly journals POLICY STRATEGY TO MANAGE SUSTAINABILITY OF SITU (SMALL LAKE) KEDAUNG IN PAMULANG DISTRICT, SOUTH TANGERANG, BANTEN-INDONESIA

2019 ◽  
Vol 12 (2) ◽  
Author(s):  
Agus Susanto
Keyword(s):  
City Government ◽  
Social Dimension ◽  
Prospective Analysis ◽  
Economic Dimension ◽  
Five Dimensions ◽  
Small Lake ◽  
The Future ◽  
The Status ◽  
Sustainable Conservation ◽  
Index Value

South Tangerang City Government set it Situ (small lake) Kedaung as one of the conservation program, because of 9 there were 4 of which have been lost or switching functions, and 3 endangered missing, one of them is Situ Kedaung. For it is necessary to study the level of sustainable conservation to utilization Situ Kedaung. This study aims to analyze the index and status sustainability of 5 (five) dimensions of sustainability, using the data step Multi-Dimensional Scaling (MDS), and the results are expressed in the form of index and status of sustainability. To determine the attributes that are sensitive and affect the index and status sustainability and influence of Laverage and Montecarlo analysis. As for the scenarios increase the sustainability of the future status is a prospective analysis. The analysis showed that the ecological dimensions of sustainability are at less status (37.32), the economic dimension is the less sustainable status (26.05), the social dimension is the less sustainable status (40.28), the dimensions of the technology is fair sustainable status (57.20), and institutional dimensions are less sustainable (26.91). The results of the analysis of all the dimensions of sustainability for situ Kedaung is included in the category or status less sustainable with index value of 36.65. Of the 37 attributes that were analyzed, there were 14 attributes that need to be addressed as it is sensitive affect. Based on a prospective analysis, there are 5 critical attributes that must be managed in order to maintain sustainability. These five attributes include: water pollution, eco-tourism, conservation, community income, and local regulatory agencies, hereinafter referred to as key attributes. To improve the status of sustainability in the future (over the medium and long term), there are three scenarios : (1) Conservative-Pessimistic (survive the conditions that exist while holding make shift repairs), (2) moderate- Optimistic (make improvements but not optimal) and (3) Progressive- Optimistic (make comprehensive and integrated improvements).

scholarly journals PENGENDALIAN ALIH FUNGSI LAHAN SAWAH YANG BERKELANJUTAN DI KECAMATAN TAMBANG, KABUPATEN KAMPAR, RIAU The Sustainability Of Control Over The Paddy Fields Converstion In Tambang Sub-District, Kampar Regency, Riau

2021 ◽  
Vol 15 (2) ◽  
pp. 152
Author(s):  
Chendy Prima Sari ◽  
Zulfan Saam ◽  
Ridwan Manda Putra
Keyword(s):  
Two Dimensions ◽  
Social Dimension ◽  
Paddy Fields ◽  
Survey Method ◽  
Literature Study ◽  
Economic Dimension ◽  
Sustainability Index ◽  
The Status ◽  
Supply Capacity ◽  
Index Value

The phenomenon of paddy fields conversion in Kampar Regency which continues to increase from year to year had caused decreasing paddy fields area and threatening food supply capacity. The purpose of this study was to analyze the index and the status of the sustainability of control over the paddy fields conversion and to find out the sensitive attributes of the sustainability of control over the paddy fields conversion in Tambang Sub-District, Kampar Regency. This research was conducted in Aur Sati Village, Balam Jaya Village and Pulau Permai Village, Tambang Sub-District, Kampar Regency from October 2020 to January 2021. The method used was the survey method with a quantitative approach. The sampel of farmers in this study were 88 people who were selected by purposive sampling. Data collection was done by observation, interviews, and literature study. This study used questionnaires as an instrument to collect data.  The analytical method used in this research was the sustainability analysis carried out with the Multi-Dimensional Scaling (MDS) analysis approach with the Rap-Paddy Field tool which has been modified from Rapfish program. The results showed that the control of the paddy fields conversion in Aur Sati Village has been going very well, this can be seen from the sustainability index value of each dimension in the range of 52.4 - 83.9% (fairly - highly sustainable). On the other hand, the sustainability index value of each dimension in Balam Jaya Village ranges from 35.9 - 48.2% (less sustainable), this showed that paddy fields conversion in this village has not been well controlled. While in Pulau Permai Village, the economic dimension had a sustainability index value of 48.2% (less sustainable) and there were 2 (two) dimensions that were classified as fairly sustainable, namely the ecological dimension of 64.4% and the social dimension of 52.3%. These data provided information that the control of paddy fields conversion in Pulau Permai Village is still ecologically and socially oriented, and ignores the economic dimension. There were sensitive attributes that need to be given top priority in planning the sustainability of control over the paddy fields conversion in Tambang Sub-District, Kampar Regency, namely price stability, product markets, traditional leaders, cultivation techniques and availability of RTRW.

scholarly journals STATUS TERUMBU KARANG DI PERAIRAN PESISIR NEGERI HUKURILA

2021 ◽  
Vol 17 (1) ◽  
pp. 35-45
Author(s):  
Dicky Sahetapy ◽  
Laura Siahainenia ◽  
Debby A J Selanno ◽  
Johannes M S Tetelepta ◽  
Novianty C Tuhumury
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coastal Waters ◽  
Coral Species ◽  
Similarity Index ◽  
Ecological Index ◽  
Stony Coral ◽  
The Status ◽  
Coral Communities ◽  
Line Intercept

Coral reef is one of the important coastal ecosystems that have high biodiversity. This study aims to analyze the composition of the taxa and the distribution of coral species, the ecological index of coral communities and the status of coral reefs. The research was conducted from April-May 2019 in the coastal waters of Hukurila Village, South Leitimur District, Ambon City. Collecting coral data by using the Line Intercept Transect (LIT) method. Determination of coral reef condition based on percent data (value) of coral reef cover. During the study, 116 species of stony coral from 49 genera and 16 families were found, which 50 species of them are protected and 23 species of ornamental coral. The similarity index of stony coral species between coral reef locations ranges from 0.52-0.76 or there is the similarity of stony coral species between locations coral reef in the amount of 52-76%. The coral reefs of Hukurila Village have high diversity of coral species, with a low dominance of coral species in the community, and the compatibility of coral species in the community is classified as stable. Acropora corals contributed a low covering percent value (9.98%), while Non-Acropora corals contributed a relatively high percent of covering value (43.56%). The status of coral reefs between locations in the coastal waters of Hukurila Village is in the criteria of good (healthy).   ABSTRAK Terumbu karang merupakan salah satu ekosistem pesisir penting yang emiliki kenanekaragaman hayati tinggi. Penelitian ini bertujuan untuk menganalisis komposisi taksa dan sebaran spesies karang, indeks ekologi kominitas karang dan status terumbu karang. Penelitian dilakukan dari April-Mei 2019 di perairan pesisir Negeri Hukurila Kecamatan Leitimur Selatan Kota Ambon. Pengumpulan data karang menggunakan metode Line Intercept Transect (LIT). Penentuan kondisi terumbu karang berdasarkan data (nilai) persen penutupan karang batu. Selama penelitian ditemukan 116 spesies karang batu dari 49 genera dan 16 famili, dimana 50 spesies diantaranya dilindungi dan 23 spesies karang hias. Indeks similaritas spesies karang batu antar stasiun terumbu karang berkisar antara 0,52-0,76 atau terdapat kesamaan spesies karang batu antar lokasi terumbu karang sebesar 52-76%. Terumbu karang Negeri Hukurila memiliki diversitas spesies karang tinggi, dengan dominansi spesies karang rendah dalam komunitas, dan keserasian spesies karang dalam komunitas tergolong stabil. Karang Acropora memberi kontribusi nilai persen penutupan rendah (9,98%), sementara karang Non-Acropora memberi kontribusi nilai persen penutupan karang batu relatif tinggi (43,56%). Status terumbu karang antar stasiun terumbu perairan pesisir Negeri Hukurila berada dalam kriteria baik (sehat).   Kata kunci: terumbu, karang batu, keragaman spesies, kesamaan, persen penutupan

scholarly journals Sea cucumber community in the coastal area of the Bahoi Village,West Likupang Sub-district, North Minahasa District

2020 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Andia Tri Fritama Lumbu ◽  
Lawrence J. L. Lumingas ◽  
Gaspar D. Manu
Keyword(s):  
Sea Cucumber ◽  
Diversity Index ◽  
Similarity Index ◽  
Sampling Technique ◽  
Distribution Patterns ◽  
Line Transect ◽  
Dominance Index ◽  
Holothuria Scabra ◽  
Research Site ◽  
Holothuria Atra

This research is conducted in the coastal waters of Bahoi Village, West Likupang Sub-district, North Minahasa District with the aims to know the types of sea-related environmental factors in the research site and know the community structure of the sea cucumber including the density, Index of diversity, dominance index, and distribution patterns. Data collection was done by using the line transect method, and sampling technique by using quadrat. The results of the study found 5 species of sea cucumber i.e. Holothuria atra,  Holothuria scabra,  Bohadschia marmorata, Actinopyga echinites, and  Bohadschia vitiensis. The individual density of all species is 0.12 ind/m2, and the diversity index (H ') 0.950. The value of the similarity index/compatibility obtained is e = 0.918. The result of the calculated dominance index of sea cucumber species is 1.0 and the pattern of spreading species of sea cucumber in the research site shows a random spread pattern because the value of dispersion index  (I) approaches 1 (one). Keywords: community; Sea cucumber; Bahoi; Dominance; Diversity.AbstrakPenelitian ini dilakukan di perairan pantai desa Bahoi, Kecamatan Likupang Barat, Kabupaten Minahasa Utara dengan tujuan untuk mengetahui jenis-jenis teripang yang ada di lokasi penelitian dan mengetahui struktur komunitas teripang yang meliputi kepadatan, indeks keanekaragaman, indeks dominasi, dan pola penyebaran. Pengambilan data dilakukan dengan metode line transek, dan teknik pengambilan sampel dengan mengunakan kuadrat. Hasil penelitian ditemukan 5 spesies teripang yaitu Holothuria atra, Holothuria scabra, Bohadschia marmorata, Actinopyga echinites dan Bohadschia vitiensis. Kepadatan individu dari seluruh spesies yaitu 0,12 ind/m2, indeks keanekaragaman (H’) 0,950. Nilai indeks kemerataan/keserasian diperoleh nilai indeks e = 0,918. nilai indeks dominasi spesies teripang diperoleh 1,0 dan pola penyebaran spesies teripang dilokasi penelitian menunjukkan pola sebaran acak (random) dikarenakan nilai indeks dispersi (I) mendekati 1 (satu).Kata Kunci : Komunitas; Teripang; Perairan Bahoi; Dominasi; Keanekaragaman

scholarly journals KEANEKARAGAMAN JENIS TUMBUHAN PAKU-PAKUAN (PTERIDOPHYTA) DAN KONDISI TEMPAT TUMBUHNYA PADA HUTAN RAWA GAMBUT SEKUNDER DAN LAHAN GAMBUT TERBUKA

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Furwoko Kirno ◽  
Dwi Astiani ◽  
Hanna Artuti Ekamawanti
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Survey Method ◽  
Site Conditions ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Plot Size ◽  
Peat Swamp ◽  
Index Value

The activities of the community around the peat swamp forest cause disruption of the ecosystem from the sustainability of the forest area's resources. Land clearing and peatland fires also affect the presence of ferns. The new environmental conditions due to changes in land cover cause ferns to be affected by these changes. Kuala Dua Village Kubu Raya Regency has secondary peat swamp forest and open peat land due to fires 3-4 years earlier so it is overgrown with a variety of new types of flora, one of which is a type of fern. The objective of the study is to describe species diversity of ferns and their site conditions in secondary peat swamp forests and open peatlands of Kuala Dua Village, Kubu Raya District. This research was conducted with survey method using multiple plot samples. The plots determination was done by purposive sampling which was taken place on the site where there were many species of ferns land. Three plots were on each land covered condition with a plot size of 5 m x 5 m that divided into 25 of a 1 m x 1 m sub plots. The results show that 5 species of ferns found in peat swamp forest and 4 species of ferns were found on open peatlands. The species that has the highest INP value in the forest was Asplenium belangeri and the species that has the INP value in open peatland was Nephrolefis falcata. Dominant Index, Spesies Diversity Index and Spesies Abudance Index were 0,12 and 0,18; 0,30 and 0,36; 0,51 and 0,52 on the forest and open peatland respectively. The Similarity Index value (IS) of ferns in secondary peat swamp forest and open peatland is 44%. The study shows dissimility of species fern in peat swamp forests and open peatlands.Keywords: Open peatland, Pteridophyta, secondary peat swamp forest

A Hybrid Approach for 3D Lung Segmentation in CT Images Using Active Contour and Morphological Operation

2020 ◽  
pp. 163-175
Author(s):  
Satya Praksh Sahu ◽  
Bhawna Kamble
Keyword(s):  
Active Contour ◽  
Hybrid Approach ◽  
Similarity Index ◽  
Ct Images ◽  
Dice Similarity Coefficient ◽  
Morphological Operations ◽  
Lung Segmentation ◽  
Cad System ◽  
Detection And Diagnosis ◽  
Index Value

Lung segmentation is the initial step for detection and diagnosis for lung-related abnormalities and disease. In CAD system for lung cancer, this step traces the boundary for the pulmonary region from thorax in CT images. It decreases the overhead for a further step in CAD system by reducing the space for finding the ROIs. The major issue and challenging task for the segmentation is the inclusion of juxtapleural nodules in the segmented lungs. The chapter attempts 3D lung segmentation of CT images using active contour and morphological operations. The major steps in the proposed approach contain: preprocessing through various techniques, Otsu's thresholding for the binarizing the image; morphological operations are applied for elimination of undesired region and, finally, active contour for the segmentation of the lungs in 3D. For experiment, 10 subjects are taken from the public dataset of LIDC-IDRI. The proposed method achieved accuracies 0.979 Jaccard's similarity index value, 0.989 Dice similarity coefficient, and 0.073 volume overlap error when compared to ground truth.

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