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Journal articles on the topic 'Important Value Index (IVI)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Rumwaropen, Yohan F., Bambang Nugroho, and Anton Sineri. "Dampak alih fungsi hutan mangrove terhadap ekonomi masyarakat di Telaga Wasti Sowi IV Manokwari Papua Barat." Cassowary 2, no. 1 (2019): 30–48. http://dx.doi.org/10.30862/casssowary.cs.v2.i1.21.

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Mangrove forest is a vegetation that grows in the estuary beaches and who has the function of ecological, biological, economic and social culture, but now its existence has been degraded by the use of a less appropriate or changing function. Research on the structure of mangrove forest vegetation in the Wasti Bay Sowi IV Manokwari District of Southern District Manokwari conducted in April 2018 with the aim to determine the structure of mangrove forest vegetation and utilization. The method used in this research is the approach of ecological (biological) and anthropological approach. From the a

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Cundaningsih, Nurvita, Muhammad Daffa Shidqi, Kabul Fadilah, Azhim Agni Prasetya, and Verona Amelia. "Komunitas Mangrove di Area Konservasi Mangrove PT Petrokimia Gresik: Ekowisata Mangrove Kali Lamong Gresik." Jurnal Teknologi Lingkungan Lahan Basah 12, no. 3 (2024): 816. http://dx.doi.org/10.26418/jtllb.v12i3.79363.

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The mangrove communities and their utilization for ecotourism are situated along the Kali Lamong riverbanks, specifically in Sukorejo Village, Kebomas District, Gresik Regency. In the context of area management, it is crucial to understand the current state of the mangrove community through an analysis of the biodiversity index and important value index. The method used in this study is the line plot transect method. Data were analyzed using the Shannon-Wiener Diversity Index to determine the value of the Biodiversity Index and also calculate the density, frequency and dominance to determine t

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Pariyanto, Pariyanto, Kiki Fatmawati, and Nourma Evianti. "Analisis Vegetasi Tumbuhan Tingkat Pohon di Kawasan Hutan Pendidikan dan Pelatihan Universitas Muhammadiyah Bengkulu." Bioscientist : Jurnal Ilmiah Biologi 10, no. 1 (2022): 202. http://dx.doi.org/10.33394/bioscientist.v10i1.4883.

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This study aims to determine the analysis of plant vegetation tree level area of forest education and training University of Muhammadiyah Bengkulu, according to a study conducted in Januari to February 2018 in the Forest of education and training University of Muhammadiyah Bengkulu in specimen collection is done by putting in a systematic plot, with a plot size of 10 x10 m, the distance between the plot of 20 m, the total number of plots 35 plots. Based on identification obtained 19 Family consisting of 30 species with the number of 205 people, with Importance Value Index (IVI) is highest in S

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Prabhakar, Rao. V. V*1 &. Brahmaji Rao. P2. "DIVERSITY VARIATIONS OF MANGROVE FLORA AMONG CREEKS AND MUDFLATS OF MACHILIPATNAM MANDAL IN KRISHNA DISTRICT." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 8 (2017): 209–19. https://doi.org/10.5281/zenodo.839172.

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Mangrove flora is unique vegetation that survives at high salinity; tidal regimes, strong wind velocity, high temperature and muddy anaerobic soil with the development of some adaptive morphological characteristics.The present study was carried in creeks and mudflats mangrove patches, to find ecological status of the mangrove vegetation and to analyze significant changes. Results shows, highest Important Value Index (IVI) in Kanuru 33.33and Achyyavaripalem is31.82 for Avicennia marina. Highest Maturity index values (MIV) is 71.00 of Kanuru and 31.82 of and 71.00 of Achyyavaripalem .Similarity

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Dewiyanti, Irma, Muhammad Rifki, Chitra Octavina, Maria Ulfa, Adrian Damora, and Nurfadillah Nurfadillah. "Important value index (IVI) and diversity of mangrove vegetation in Aceh Tamiang, Aceh Province." Depik 12, no. 2 (2023): 190–97. http://dx.doi.org/10.13170/depik.12.2.31130.

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Mangrove ecosystem is one of the unique ecosystems that has high productivity and it grows along the coast of Aceh Province, Indonesia. The mangrove vegetation in Aceh Tamiang District was decreasing due to human exploitation i.e. stems of mangrove vegetation utilized by local communities become charcoal and firewood. These activities have a negative impact on live and growth of mangrove vegetation. Therefore, the purposes of the study are to analyses the important value index (IVI), mangrove species diversity, and to analyses the correlation between substrate characteristics with mangrove den

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Ali, F., Muhammad Nawaz Rajpar, M. Zeb, M. Amin, Siraj Siraj, and S. Hidayat. "Quantify the vegetation-edaphic correlation and important value index in Himalayan ‘ecotone’ temperate conifer forest using the multivariate techniques." Sustainable Forestry 6, no. 2 (2024): 2854. http://dx.doi.org/10.24294/sf.v6i2.2854.

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Himalayan ‘Ecotone’ temperate conifer forest is the cradle of life for human survival and wildlife existence. Human intervention and climate change are rapidly degrading and declining this transitional zone. This study aimed to quantify the floristic structure, important value index (IVI), topographic and edaphic variables between 2019 and 2020 utilizing circular quadrant method (10m × 10m). The upper-storey layer consisted of 17 tree species from 12 families and 9 orders. Middle-storey shrubs comprise 23 species representing 14 families and 12 orders. A total of 43 species of herbs, grasses,

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Haribowo, Dinda Rama, Ardian Khairiah, Ence Maman, et al. "Diversity of Long-tailed Macaque Food Trees (Macaca fascicularis) at The Tapos National Park Management Resort Area, Mount Gede Pangrango National Park." Jurnal Biologi Tropis 23, no. 3 (2023): 626–32. http://dx.doi.org/10.29303/jbt.v23i3.5035.

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: Long-tailed macaque (LTM) are arboreal primates which have an ecological function as seed dispersers and as controllers of insect populations in their habitat. LTM populations were found in the Tapos National Park Management Resort forest area, MGPNP. The existence of food trees greatly influences the existence and activity of LTM, so knowledge about the diversity of LTM food trees in the Tapos National Park Management Resort area is very important to do. This research aims to determine the level of species dominance in the plant community and diversity of LTM food trees in the Pasir Koja an

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Ezulike, F. O., C. G. Ukpaka, and B. C. Chinyere. "Determination of importance value indices of some plant species using closest individual sampling techniques." Journal of Aquatic Sciences 34, no. 1 (2020): 79–85. http://dx.doi.org/10.4314/jas.v34i1.10.

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This study was conducted to determine the Important Value Indices (IVI) of some plants in the University farm. Eighty plant stands belonging to three families (Musaceae, Caricaceae and Arecaceae) were identified. Their frequency and coverage percentage were measured within the sampling plot. Data obtained were subjected to Chi-square analysis to test for significance at 5% level of significance. The results indicated that the mean richness of Caricaceae, Arecaceae and Musaceae species in the study area were 3, 2 and 6, respectively. The highest (p<0.05) Floral Value Index of 90.52 was recor

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Putri, Sesilia Maharani, and Indriyanto -. "KEANEKARAGAMAN TUMBUHAN PENYUSUN VEGETASI HUTAN LINDUNG BENGKUNAT DI RESOR III KPH UNIT I PESISIR BARAT." Jurnal Hutan Tropis 9, no. 1 (2021): 212. http://dx.doi.org/10.20527/jht.v9i1.10496.

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Plant diversity in Protection Forest is an important factor that considered to support the sustainability function to protected the area. Plant diversity is a form of the species association that could be the indicator forest vegetation stabillities. This research aims to analyze the plant diversity in Bengkunat Protection Forest. This research was conducted between March-April 2019 at the 4,470 ha area with the sampling intensity 0.02%. Data were collected using grid line method that consisted of 34 sample plots. Data were analyz using Shannon Index (H), Richness Index (R) and Evenness Index

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Niroula, Bhabindra, and KLB Singh. "Seasonal variation in Importance Value Index (IVI), Diversity Indices and Biomass of aquatic macrophytes at Biratnagar and adjoining areas, eastern Nepal." Nepalese Journal of Biosciences 1 (January 23, 2013): 1–7. http://dx.doi.org/10.3126/njbs.v1i0.7462.

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Aquatic macrophytes of three freshwater bodies of Biratnagar and adjoining areas in eastern Nepal namely, Betana-a natural oxbow pond, Bhattapokhari-an aged derelict depression, and Singhia river were analysed for their importance value index (IVI), diversity indices and biomass seasonally from January 2008 to December 2009. Singhia river had high species richness-d (2.08-3.84) and Shannon Wienner index-H' (2.16-2.68). Betana pond and Bhattapokhari had low diversity indices; however, nutrient rich Bhattapokhari had highest primary productivity (2675.5 g/m2/yr) in comparison to Betana pond (303

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Pebriyanty, Santy, Yayan Hendrayana, and Nina Herlina. "KEANEKARAGAMAN JENIS TUMBUHAN BAWAH BERPOTENSI OBAT DI KAWASAN GUNUNG TILU KABUPATEN KUNINGAN JAWA BARAT." Jurnal Nusa Sylva 23, no. 1 (2024): 33–41. http://dx.doi.org/10.31938/jns.v23i1.477.

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Undergrowth is a type of basic vegetation found under forest stands except for forest tree regeneration, which includes grasses, herbs and shrubs. Undergrowth plants have a primary function in conserving soil and water. This is because the undergrowth has a large root system that produces dense clumps and is able to prevent soil erosion, as a protector of the soil from raindrops and runoff, also plays a role in increasing organic matter in the soil as green manure and mulch. Utilization of undergrowth plants as a source of medicines has an important role and is an alternative for the community

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Yunus, Budiman, Sharifuddin Bin Andy Omar, and Basse Siang Parawansa. "STUDY OF MANGROVE COMMUNITY STRUCTURE IN UJUNG BATU BEACH WATER, FLORES SEA, JENEPONTO DISTRICT." International Journal of Research -GRANTHAALAYAH 8, no. 5 (2020): 108–20. http://dx.doi.org/10.29121/granthaalayah.v8.i5.2020.97.

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This study aims to examine the density, frequency and closure of mangrove areas. In addition, it also analyzed the ecological index (index of diversity, uniformity, and dominance) of mangrove vegetation in the waters of Ujung Batu, Flores Sea, Jeneponto Regency. This research was conducted using the 10 x 10 m2 transect plot method. The data obtained were analyzed to determine the density, frequency, closure and important value index (IVI) as well as to analyze the diversity index, uniformity and dominance index. The results of this study are; mangrove communities in the waters of the Ujung Bat

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Budiman, Yunus, Bin Andy Omar Sharifuddin, and Siang Parawansa Basse. "STUDY OF MANGROVE COMMUNITY STRUCTURE IN UJUNG BATU BEACH WATER, FLORES SEA, JENEPONTO DISTRICT." International Journal of Research -GRANTHAALAYAH 8, no. 5 (2020): 108–20. https://doi.org/10.29121/granthaalayah.v8.i5.2020.97.

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This study aims to examine the density, frequency and closure of mangrove areas. In addition, it also analyzed the ecological index (index of diversity, uniformity, and dominance) of mangrove vegetation in the waters of Ujung Batu, Flores Sea, Jeneponto Regency. This research was conducted using the 10 x 10 m 2 transect plot method. The data obtained were analyzed to determine the density, frequency, closure and important value index (IVI) as well as to analyze the diversity index, uniformity and dominance index. The results of this study are; mangrove communities in the waters of the Uj ung B

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Punia, Harish, and Somveer Jakhar. "Invasive Alien Plant Species Assessment in Semi-Arid Ecosystems: A Case Study from Southern Haryana, India." Research Journal of Chemistry and Environment 27, no. 11 (2023): 51–59. http://dx.doi.org/10.25303/2711rjce051059.

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Forests of Southern Haryana are incredibly rich in medicinally important plant species but anthropogenic activities and invasive alien plant species are putting a huge stress on these forests. In order to comprehend the ecology of invasive alien plant species, the current study was carried out in the semi-arid forests of Southern Haryana districts, namely Charkhi Dadri and Mahendergarh. During the study, different analytical parameters were calculated such as density(D), basal area (B.A) and importance value index(IVI) along with different diversity indices such as Shannon-weiner index(H'), Si

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Rahim, S., D. W. K. Baderan, M. S. Hamidun, et al. "Diversity, distribution and conservation status of mangrove species in Pulias Bay, Indonesia." Biosystems Diversity 31, no. 3 (2023): 276–81. http://dx.doi.org/10.15421/012331.

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As an ecosystem, the mangrove ecosystem serves various purposes. The objectives of this study are to (1) identify the community structure of the important value index; and (2) evaluate the importance of the mangrove species diversity index in Pulias Bay in Ogodeide District, Tolitoli Regency. The study was conducted in 2021 using a quantitative descriptive methodology and survey method. The number of discovered species will be used to establish the species composition. The structure of the mangrove communities is being evaluated by calculating the relative density (RD) and frequency (FR). The

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Nasirudin, Mohamad, and Rohmat Hidayat. "INDEKS NILAI PENTING SERANGGA PADA PERKEBUNAN APEL SEMIORGANIK DAN ANORGANIK KOTA BATU." Exact Papers in Compilation (EPiC) 1, no. 3 (2019): 109–14. http://dx.doi.org/10.32764/epic.v1i3.139.

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This study aims to determine the Important Value Index (IVI) of insects that are present in plantations of semiorganic and anorganic apples in Tulungrejo Village, Bumiaji District, Batu City. Insect handling is done by direct observation and Yellow Trap. This research was carried out in April-May 2019. The parameters observed were insect IVI in both fields. The results of insect IVI research showed that the highest value in semiorganic apple plantations by direct observation found insects from the Cerambycidae family of 40.06% which acted as herbivores, while anorganic land from the Thripidae

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Javid, Mohsin, Khursheed Ahmad, Asad R. Rahmani, Firdous Ahmad, and Parag Nigam. "Species Diversity and Composition of Macrophytes in Shallabugh Wetland, Ganderbal, Jammu, and Kashmir, India." International Journal of Plant & Soil Science 36, no. 6 (2024): 436–43. http://dx.doi.org/10.9734/ijpss/2024/v36i64645.

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Macrophyte diversity, richness, and composition of the Shallabugh wetland Reserve, one of the Important Bird and Biodiversity Area in India. The wetland shows the presence of 39 plant species of 27 families and three tree species belonging to three families and a diversity index of H = 3.12 and Evenness e^H/S = 0.5836. The high Importance Value Index (IVI=22.8) was recorded for Typha latifolia, followed by Ceratophyllum demersum (IVI=19.2). The shift in macrophyte community structure is evidenced by the local extinction of Nelumbo nucifera from the Shallabugh wetland area and the near-disappea

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Rambe, Saidah Putri, Sulistijorini, and Tatik Chikmawati. "Keragaman Tumbuhan Invasif di Perkebunan Sawit PT Perkebunan Nusantara II Deli Serdang, Sumatra Utara." Jurnal Sumberdaya Hayati 10, no. 4 (2024): 222–28. https://doi.org/10.29244/jsdh.10.4.222-228.

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Several species of weeds, categorized as invasive plants, are among the factors inhibiting plantation productivity. The uncontrolled spread and growth of these invasive plants can lead to both economic and ecological losses. This study aimed to analyze the diversity of invasive species in the palm oil plantation area of PT Perkebunan Nusantara II. Plant samples were collected by establishing sample plots in three different blocks using purposive sampling. Additionally, species identification and data analysis were conducted, including the Important Value Index (IVI), diversity index, similarit

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Fambayun, Rizki Ary, Nur Muhammad Heriyanto, and Marfuah Wardani. "Ecological aspects of meranti kunyit (Shorea macroptera Dyer) in Rantau Bertuah Forest, Siak Regency, Riau Province and the implication for forest management and conservation." Jurnal Penelitian Kehutanan Wallacea 11, no. 1 (2022): 1. http://dx.doi.org/10.18330/jwallacea.2022.vol11iss1pp1-11.

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Sumatra’s lowland tropical rainforest is in the third place after Kalimantan and Papua in terms of Indonesia’s plant species diversity. Shorea macroptera is one of the species from the Dipterocarpaceae family, known as an important commercial timber tree species. In September 2019, the study was conducted in Rantau Bertuah Forest, Siak Regency, Riau Province, Sumatra, with a total sample plot area of 1 ha. The data were analyzed to show the vegetation quantitative structure and composition on the study site using the Important Value Index, and the association of S. macroptera using the Ochiai

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Ngwe, Soe, Aye Mar Aye, and Sein Kyi Khin. "Plant species Diversity in Salu Reserved Forest, East Bago Yoma, Bago Township." Bago University Research Journal Vol. 6, No. 1, no. 2016 (2016): 214–24. https://doi.org/10.5281/zenodo.3917242.

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The present study deals with the assessment of plant species diversity, 28 quadrats (20m x 20m each) were set up and observed. A total of 126 tree species representing 79 genera and 43 families were recorded. In this study, Thit Phyu area occupied higher value of species richness, evenness and had a higher combined diversity index than Seik Phu Taung area in tree and shrub layers. (i.e. Shannon-Wiener and Simpson’s indices). Coefficient of similarity value were 66.667%, 66.321% and 72.131% in tree, shrub, and herb layers of two different sites by using Sorenson index, 1948. Ecological su

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Agnihotri, Priyanka, and Tariq Husain. "Analysis of species diversity in Pedicularis associations of Eastern Himalayan." Indian Journal of Forestry 32, no. 1 (2009): 165–70. http://dx.doi.org/10.54207/bsmps1000-2009-9kp05s.

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Species diversity of Pedicularis and associated plants in Sikkim Himalaya was studied in the year 2003-2004. On the basis of important value index (IVI) species of Ranunculus and Taraxacum were observed to be dominant in microhabitat associations. Index of richness was maximum 0.91 at Lachen, at the altitude of 3500 m and index of diversity was maximum 0.53 at Changu, 3500 m. Index of diversity was higher in Eastern Sikkim than Northern Sikkim but Index of richness was higher in Northern Sikkim.

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Cahyadi, Ferry Dwi, Aafiyah Maryam Nur Shabrina, Himawan Prasetiyo, and Laksmi Puspitasari. "Mangrove Vegetation Analysis and Zonation in Cemara Beach, Banyuwangi." Jurnal Biologi Tropis 25, no. 2 (2025): 1528–36. https://doi.org/10.29303/jbt.v25i2.8771.

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Cemara Beach in Banyuwangi Regency has a unique mangrove ecosystem with a river flow that limits the tidal area with the land behind it. This study aims to determine the structure and composition of mangroves in Cemara Beach and its zoning. The method used is a vegetation survey with a transect plot. Data were analyzed using ecological indices and zoning illustrated from the results of vegetation surveys and observations. The results show that the Casuarina equisetifolia species has the highest important value index (IVI) in tree-level vegetation with an IVI value of 128.29%, while the highest

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Zaki, Abdul Ghaffar Amiruddin, Yus Andhini Bhekti Pertiwi, Malihatun Nufus, and Amalia Tetrani Sakya. "The Composition of Undergrowth Vegetation in Forest Area with the Special Purpose of Gunung Bromo, Karangayar, Central Java, Indonesia." Jurnal Sylva Lestari 10, no. 1 (2022): 127–40. http://dx.doi.org/10.23960/jsl.v10i1.553.

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Data on the biodiversity is essential to support the Forest Area with the Special Purpose (KHDTK) of Gunung Bromo as an educational forest and training center. This study aimed to obtain basic information on undergrowth vegetation composition under pine stands. Furthermore, the important value index (IVI), species diversity index (H’), species richness index (R), and evenness index (E) were determined. The data was systematically obtained by marking 35 plots of 2 m × 2 m. The distance between plots was 100 m. The results showed that the undergrowth vegetation consisted of 39 species from 26 fa

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Sari, Nilam, Pratiwi, Mira Yulianti, Catur Budi Wiati, and Karmilasanti. "Association of Shorea leprosula and Shorea johorensis Species with other Species in Tropical Forest." Media Konservasi 29, no. 4 (2024): 527. http://dx.doi.org/10.29244/medkon.29.4.527.

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Shorea leprosula and Shorea johorensis do not live alone, but are associated with other plant species within a forest ecosystem. The relationships or associations of plants in the forest can be positive and negative. Positive association occurs when a plant species is present together with other plant species, while negative association occurs when a plant species is not present together with other plant species. The purpose of this study was to determine the distribution pattern of tree species, the Important Value Index (IVI), the association between species, and the kinship value of S. lepr

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Fikriyya, Nabela, Adinda Kurnia Putri, and Marina Silalahi. "Riparian Vegetation Structure of the Jengok River, Kutaliman, Kedungabanteng District, Banyumas Regency." MAIYAH 2, no. 2 (2023): 129. http://dx.doi.org/10.20884/1.maiyah.2023.2.2.8863.

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Jengok River has a high value for the Kutaliman community. The community utilizes the ecosystem services of the Jengok River and is inseparable from the presence of riparian vegetation, which controls water quality. This study aimed to determine riparian vegetation structure on the Jengok River, Kutaliman, Kedungbanteng district, and Banyumas Regency. The research was conducted in October-November 2022 in the Jengok riparian zone using a quadrat transect with sizes 20x20 m2 for trees dan 2x2 m2 for understoreys. Data were analyzed using the Shannon-Wiener Diversity Index (H'), the Modified Hil

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Istikana, Yayang, Wahyu Harso, and Ramadanil Pitopang. "KOMUNITAS GULMA PADA PERKEBUNAN KAKAO (Theobroma cacao) DI DATARAN TINGGI DESA DONGI-DONGI DAN DATARAN RENDAH DESA SIDERA." Biocelebes 13, no. 3 (2019): 203–17. http://dx.doi.org/10.22487/bioceb.v13i3.14965.

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Different elevation of lands can affect environmental conditions such as light intensity, temperature, and humidity. The environmental conditions will affect the growth and species of weeds. The aim of this study was to compare the diversity and species composition of weed comunities on highland and lowland of cacao plantation. The study was conducted by colecting the weed species from 25 plots with a size of 2 x 2 m. Every plot was placed by purposive sampling. The result showed that there were 26 species of weeds on highland while only 15 species of weeds were found on lowland. Weeds on high

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Ismanto, Sahadi Didi, and Ririn Fatma Nanda. "The Impact Of Palm Oil Plantations On Bird Diversity In Palm Oil Estates In Nagari Salareh Aia, Palembayan Sub-District, Agam District." Andalasian International Journal of Social and Entrepreneurial Development 2, no. 02 (2023): 24–31. http://dx.doi.org/10.25077/aijsed.v2.i02.24-31.2023.

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This study aimed to see the effect of the existence of oil palm agricultural land on bird populations in the Agam area of West Sumatra Province. Observations were made directly by taking primary and secondary data.The species of birds that were identified during the observations were Pycnonotus goiaver (Merbah Cerocok) important value index 68.75 %, Streptopelia chinensis (Tekukur) IVI 42.50, Prinia familiaris (Prenjak Java) IVI 35.00 %, Colocalia esculenta (Cow Swallow) IVI 18.75 %, Copsychus saularis musicus (Murai) IVI 13.75 %, Halcyon smyrnensis (Javanese gecko) IVI 8.75 %, Rhipidura javan

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Rahmadaniarti, A., M. Beljai, Mutakim, and N. F. Lestari. "Planting pattern and space utilization of home gardens of various ethnicities: Case Study in Waraitama Village, Manimeri District, Teluk Bintuni Regency." IOP Conference Series: Earth and Environmental Science 1192, no. 1 (2023): 012047. http://dx.doi.org/10.1088/1755-1315/1192/1/012047.

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Abstract The ethnic diversity in Teluk Bintuni Regency, especially in the Waraitama village, will cause the characteristics of the home garden that be managed for different purposes. This study aims to determine the pattern arrangement of vegetation and space utilization in the home garden. This research was conducted in the home gardens of Waraitama Village, Manimeri District, Teluk Bintuni Regency. The data collection method was carried out by purposive sampling on 38 home gardens overgrown with woody plants. Data was taken by the census, i.e., all woody plants with a diameter of more than 1

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Hastari, Belinda, and Robby Octavianus. "Komposisi dan Keragaman Jenis Bajakah di Resort Sebangau Hulu Taman Nasional Sebangau." Daun: Jurnal Ilmiah Pertanian dan Kehutanan 8, no. 2 (2021): 82–97. http://dx.doi.org/10.33084/daun.v8i2.2969.

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Sebangau National Park (TNS) is a conservation area for peatland ecosystems with biological natural resources including medicinal plants namely Bajakah. The aims of this study were to identify and measure the composition and diversity level of Bajakah in TNS. Results of this study are expected to be a data baseline for TNS’ management especially the conservation of Bajakah. Data was collected using the observation method on a 15 plots study with analysis on the parameters of the Important Value Index (IVI), Species Diversity, and Species Evenness. Results of study recorded 6 species of bajakah

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K, Jenil Prabha, and Asir Selin Kumar R. "ASSESSMENT OF ECOLOGICAL STATUS OF ECONOMICALLY IMPORTANT PLANTS IN UDHAYAGIRI HILLS, NAGARCOIL." Kongunadu Research Journal 2, no. 2 (2015): 40–54. http://dx.doi.org/10.26524/krj94.

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The present ecological investigation was carried out in the understorey of tropical moist deciduous forest of Udhayagiri fort hills, Kanyakumari, Tamil Nadu. A total number of 171 species were documented in the understory of the study area and among them 163 species were recognized as economically important.The secured value of ecological attribute, importance value index (IVI) indicates that the species like Tephrosia purpurea, Clerodendron infortunatum Acalypa indica, Aerva lanata, Asystasia gangetica, Belpharis maderaptensis, Cleome viscosa, Dodonia viscose, Glycosmis pentaphylla, Leucas as

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Zaelani, Muhammad Imran, I. Wayan Arthana, and Gede Surya Indrawan. "Penilaian Kondisi Komunitas Mangrove di Kawasan Hutan Mangrove Ciletuh, Sukabumi, Jawa Barat." Journal of Marine Research and Technology 6, no. 2 (2023): 123. http://dx.doi.org/10.24843/jmrt.2023.v06.i02.p07.

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    This study aimed to analyze the composition of mangrove vegetation, the Important Value Index (IVI) of mangroves, the condition of the mangrove community (mangrove density and mangrove canopy cover), and environmental parameters as supporting data in the Ciletuh Mangrove Forest Area, Sukabumi, West Java. The research method used in this research is a quantitative descriptive method. The number of stations determined is four; each observation station is made of a plot of 10 x 10 meters, with three plots for each station. The results found seven mangrove species, name

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Permana, Edi, Armaiki Yusmur, Ismail Rahman, Rendy Pratna, Rini Tri Astuti, and Rizki Gusti. "Plant Biodiversity of MTR Forest Area in PT PLN Nusantara Power, Cirata, West Java." Media Konservasi 29, no. 1 (2024): 27–36. http://dx.doi.org/10.29244/medkon.29.1.27-36.

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The biodiversity park in the Cirata Reservoir MTR area is a part of Mount Cantayan, is located in Purwakarta Regency. The elevation of area is 140 to 280 meters above sea level with total area 11.2 hectares. The research aims to identify plant species and their diversity and provide recommendations for species enrichment in biodiversity parks. The data collection method used purposive sampling. Vegetation analysis is carried out using Nested Sampling. Vegetation data analysis includes the Important Value Index (IVI) and species diversity index (H’). The research results found 23 families consi

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Kiswanto, Mardiany, Budiawan Tekko Jansi, et al. "Biodiversity values of silvicultural interventions in privately managed selectively logged forests." IOP Conference Series: Earth and Environmental Science 1430, no. 1 (2024): 012022. https://doi.org/10.1088/1755-1315/1430/1/012022.

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Abstract Selective logging is gaining popularity as a way to safeguard forests and resources. To sustain forest, trees with firm stem diameters must be harvested using permitted actions. This study focus to assess the biodiversity value of production forests that have felt common selection logging (TPTI) and reduced impact logging (RIL). Field measurements were taken on permanent sample plots (PSPs) in two forest management units to assess species composition, important value index (IVI), diversity, richness, and similarity. PT Karya Lestari has 277 individuals from 36 species of 22 families.

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Asthana, Anuradha, Tariq Husain, and Bhaskar Datt. "A study on the floral ecology of Bhimbetka World Heritage Site (Madhya Pradesh)." Indian Journal of Forestry 30, no. 4 (2007): 459–61. http://dx.doi.org/10.54207/bsmps1000-2007-9rd395.

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Floristic diversity of Bhimbetka World Heritage Site (M.P.) has been studied during 2004-05 using both qualitative and quantitative parameters. Present study deals with floral ecology of the area. On the basis of important value index (IVI), Hyptis suaveolens is the dominant species of Bhimbetka forest. In general, distribution of most of plant species was contiguous. Tephrosia is a less common species of this forest. Shannon Wiener Index of Bhimbetka forest is 3.4.

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Latha, Ujji Pushpa, Ram Bharose, and Hemant Kumar. "Assessment of Plant Diversity and Soil Quality Management in Forest Land of West Godavari District, Andhra Pradesh, India." International Journal of Environment and Climate Change 14, no. 5 (2024): 32–44. http://dx.doi.org/10.9734/ijecc/2024/v14i54168.

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The field experiment was set in home-garden areas under forest land of eight small towns viz. Borampalem, Venkatapuram, Gundugolanukunta, Ramannapalem, Abdullapuram, Tirumaladevpeta, Venkatakrishnapuram, Appalarajugudem in West Godavari, Andhra Pradesh during November to March in 2021–22 assess the Plant and Tree Diversity and Soil quality parameters. The plant/tree species Phoenix sylvestris, reported the highest frequency (245.00), dominance (3.27), and basal area (7542.96 cm2). Plumbago zeylanica had the highest relative density (6.96) and relative abundance (6.81) among all the shrub speci

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Prasaja, Dimas. "Floristic Composition, Distribution, and Association of Pandanus (Pandanaceae) in Bukit Duabelas National Park Jambi." Biota 12, no. 1 (2019): 1–13. http://dx.doi.org/10.20414/jb.v12i1.165.

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Pandanus species is widely distributed over Bukit Duabelas National Park in Jambi. Suku Anak Dalam (SAD), a local community living in Bukit Duabelas National Park area, use the natural fibers from Pandanus for many necessities, such as plaiting, building materials, and performing mytological rituals. This study aimed to examine floristic composition, distribution patterns, and association of pandanus species in Bukit Duabelas National Park. Sampling was conducted using a striped line, with a plot of 35 sample plots. Dominance of species was calculated using dominant type of important Value Ind

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Martino, Ariesta Akbar, Nego E. Bataragoa, and Leonardo J. Tombokan. "Preliminary Study of Fish Abundance and Size in Intertidal Waters Around Unsrat Likupang Laboratory of North Minahasa Regency." JURNAL ILMIAH PLATAX 5, no. 2 (2017): 221. http://dx.doi.org/10.35800/jip.5.2.2017.15935.

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Fish that migrate to tidal areas are usually dominated by the juvenile phase. This research was conducted in order to know the abundance and variation of species that present in the intertidal water areas around Likupang Field Laboratory. Sampling for data was conducted by using a coastal net during the new moon, quater and full moon phase in the months of October and November 2016. The species abundance was calculated based on the Importance Value Index (IVI) formula, length variation and length frequency distribution. During the field study, 723 individuals were recorded that belong to 93 sp

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Sukma, Melisa Oktaviani, Lianah Lianah, and Saifullah Hidayat. "Diversity of Butterflies (Ordo Lepidoptera) and Flower Plants in Mount Muria Kudus, Central Java." Jurnal Biodjati 6, no. 1 (2021): 122–35. http://dx.doi.org/10.15575/biodjati.v6i1.10070.

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Indonesia is a megadiverse country. Butterflies become one of the Indonesian diversities. Indonesia has the second-highest butterfly species in the world with more than 2000 species. Flower plants are used by butterflies as hostplants and foodplant. The aims of this research were to know butterflies’ diversity and food plants in Mount Muria at Kudus City, Central Java. The research used the quadran sampling transect method with three stations (along 2 km). The research was conducted in March and June 2020. The tools used were insect net, termohigrometer, lux meter, digital camera, roll meter,

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Paluppa, Herdin, Ludia Siahaya, and Moda Talaohu. "STRUKTUR DAN KOMPOSISI VEGETASI HUTAN MANGROVE DI NEGERI RUTONG KECAMATAN LEITIMUR SELATAN KOTA AMBON." MARSEGU : Jurnal Sains dan Teknologi 2, no. 1 (2025): 14–29. https://doi.org/10.69840/marsegu/2.1.2025.14-29.

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The structure and composition of mangrove vegetation in Negeri Rutong, Leitimur Selatan District, Ambon City are the primary focus of this research. The methodology used is a quantitative approach, which involves the use of numerical data throughout all stages of the research, from data collection to data analysis. The data collected are primary data obtained directly from the field through vegetation studies. The research findings on the structure and composition of mangrove vegetation indicate the presence of three true major mangroves and two minor mangrove species that form the vegetation

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James Singh, Thoudam, and Subhasish Das Gupta. "Changes in Floral Diversity due to Livelihood Pressures in the Eco-sensitive Zone of Nongkhyllem Wildlife Sanctuary in Ri Bhoi District of Meghalaya." Journal of Plant Science Research 39, no. 1 (2023): 75–82. http://dx.doi.org/10.32381/jpsr.2023.39.01.8.

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The challenges in the management of diverse flora impacted by anthropogenic factors in areas governed by different land tenure systems are enormous notwithstanding lying in a classified biodiversity hot spot region in Meghalaya in North- east India. The attributes of the plant population in protected areas like Nongkhyllem Wildlife Sanctuary (NWLS), Nongkhyllem Forest (NRF), and District Council governed Eco-sensitive zone (ESZ) were studied using Important Value Index (IVI), Shannon’s and Weiner Diversity Index and Sorenson’s similarity index. Shorea robusta C.F.Gaertn., Tectona grandis Linn.

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Bhandari, Ramesh, Mahamad Sayab Miya, and Sachin Timilsina. "Status and Diversity of Terrestrial plants in Ghodaghodi Lake Complex, Nepal." International Journal of Applied Sciences and Biotechnology 9, no. 1 (2021): 38–44. http://dx.doi.org/10.3126/ijasbt.v9i1.35084.

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Among the Ramsar sites of Nepal, Ghodaghodi Lake Complex (GLC) is a biodiversity hot spot. This study was carried out to assess the status and diversity of terrestrial plants in GLC. Employing purposive sampling, altogether 38 plots were taken along the right hand side of the foot trails around the GLC. Collected data were analyzed using formulas and Important Value Index (IVI) was calculated. A total of 50 terrestrial species from 27 families were recorded, among which 35 were trees, 8 shrubs, and 7 herbs. Terminalia tomentosa (Saj) has highest IVI (46.53) among tree species. Similarly, Aerva

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Verma, Sangeeta, and Avinash Jain. "Vegetation survey to assess the Important Value Index (IVI) of natural forest and plantations of Tropical Forest Research Institute, Jabalpur." Journal of Tree Sciences 37, no. 1 (2018): 47. http://dx.doi.org/10.5958/2455-7129.2018.00007.9.

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ISMAIL, MOHD HASMADI, PAKHRIAZAD HASSAN ZAKI, MOHD FADLI AHMAD FUAD, and NOOR JANATUN NAIM JEMALI. "Analysis of importance value index of unlogged and logged peat swamp forest in Nenasi Forest Reserve, Peninsular Malaysia." Bonorowo Wetlands 7, no. 2 (2017): 74–78. http://dx.doi.org/10.13057/bonorowo/w070203.

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Ismail MH, Fuad MFA, Zaki PH, Jemali NJN. 2017. Analysis of importance value index of unlogged and logged peat swamp forest in Nenasi Forest Reserve, Peninsular Malaysia. Bonorowo Wetlands 1: 74-78. Peat swamp forests are highly significant globally, both for their diverse and threatened species and as a representative of unique wetland ecosystems. Apart from its critical role in providing habitat for wildlife, the tropical peat swamp forest also acts as a gene bank that harbors potentially useful varieties of plant species. The composition of trees of the peat swamp forest in Nenasi Pahang St

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Zulfa, Risqa Izzatul, Martin Joni, and I. Made Saka Wijaya. "Structure and Composition of Weed In Corn Fields (Zea mays L.) Village Belayu Marga District Tabanan Regency Bali Province." Metamorfosa: Journal of Biological Sciences 10, no. 1 (2023): 40. http://dx.doi.org/10.24843/metamorfosa.2023.v10.i01.p05.

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Corn (Zea mays L.) is one of the most important carbohydrate-producing food crops in the world. One of the problems in corn production is a decrease in the quantity and quality of corn due to the presence of weeds that grow around corn fields. This study aims to determine the structure and composition of weeds in the corn fields of Belayu Village, Marga District, Tabanan Regency, Bali Province. The method used in this study is the permanent quadrat method with plot size 1x1 m. Data were analyzed using vegetation parameters consisting of Important Value Index (IVI), diversity index (H'), domina

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Arkham, M. Nur, Yudi Wahyudin, Achmad Fahrudin, et al. "IDENTIFICATION ISSUES AND PROBLEMS FOR COASTAL DEVELOPMENT IN THE GULF LAMPUNG (AN APPROACH OF SOCIAL ECOLOGICAL SYSTEM)." Coastal and Ocean Journal (COJ) 2, no. 2 (2018): 57–68. http://dx.doi.org/10.29244/coj.2.2.57-68.

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Lampung Province has a large potential of coastal and marine resources, but its utilization is not optimal. The aim of the research is to study the potential of coastal and marine resources and identification issues and problems for coastal and marine development program of the Lampung Bay with a social ecological system (SES) approach. The research location is the coastal area of Lampung Bay (Pesawaran District, South Lampung District, and Bandar Lampung City). The data collected by surveys and interviews, while also conducted Focus Group Discussion (FGD). Analysis of the data using the impor

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PHANTHVONG, Phitsanou. "Tree Species Diversity at Nampui National Protected Area, Namon Village, Thongmixai District, Xayabuly Province." Souphanouvong University Journal Multidisciplinary Research and Development 11, no. 1 (2025): 106–14. https://doi.org/10.69692/sujmrd1101106.

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Study tree species diversity at Nampui National Protected Area, Namon Village, Thongmixai District, Xayabuly Province in 2024 with its objectives were to access the tree species diversity The diameter of the big tree is more than 10 Centimeters, important diversity index and evenness index. The methodlology were reviewing theory and field survey. The field survey were used the Relvé to survey plant population (Rawat, 2008). as simples plot construction of totally 52 pllos of the area of 2.08 hectares of the area of 175.66 hectares 1.118 as lower than 3% according to (Reif, 2012). included size

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Workayehu, Baymot, Daniel Fitamo, Firew Kebede, Liyew Birhanu, and Amare Fassil. "Floristic Composition, Diversity, and Vegetation Structure of Woody Species in Kahitassa Forest, Northwestern Ethiopia." International Journal of Forestry Research 2022 (December 12, 2022): 1–12. http://dx.doi.org/10.1155/2022/7653465.

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Kahitassa forest is one of the State Forests of Ethiopia with great floral diversity. However, the forest is under threat due to selective cutting of important indigenous tree species and encroachment of the forest area for agricultural purpose. Therefore, the study was intended to explore the floristic composition, structure, and regeneration status of Kahitassa forest. Vegetation data were collected from June to November 2020 using systematic sampling technique from 6 parallel transect lines laid out 500 m apart each other. A total of 101 plots (20 × 20 m) were laid with 100 m apart along tr

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Karinasari, Fitria, Zulfaidah Penata Gama, and Amin Setyo Leksono. "Composition & Ecological Role of Soil Macrofauna in Selorejo and Punten Citrus Farming, Malang - East Java." Biotropika: Journal of Tropical Biology 9, no. 1 (2021): 10–18. http://dx.doi.org/10.21776/ub.biotropika.2021.009.01.02.

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Conventional Citrus crops farming is an Citrus farming system that uses Citrus cultivation techniques with maximum use of chemicals and organics material and there is to support a sustainable agricultural system. Indicators of environmental quality can be known from the composition and ecological role of fauna, one of which is soil macrofauna. This research aims to investigate the diversity and community structure of the soil macrofauna and to identification its role in the Citrus farming at Selorejo, Dau and Punten Villages, Bumiaji, Malang Regency.This study is a descriptive exploratory stud

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Anwar, S., M. Dharsono, F. P. Zaery, et al. "Assessing phytoremediation potentials of heavy metals on selected plants species in the restoration environments of Gold Mining Area." IOP Conference Series: Earth and Environmental Science 1271, no. 1 (2023): 012054. http://dx.doi.org/10.1088/1755-1315/1271/1/012054.

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Abstract Mining activity have impacts on the environment which potentially expose heavy metals. Therefore, it is necessary to design the reclamation in order to improve the restoration. This research aims to assess the phytoremediation of potential acid forming (PAF) reclamation area of Henny Dump. The research was carried out by identifying the plant species, and then measuring the plant vegetation index, and measuring the concentration of heavy metals. The research showed that Falcataria molucana (IVI: 150%) and Gmelina arborea (IVI: 150%) are species with the highest Important Value Index (

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Simon, Sambou, Codou Faye Laurice, Niang Diop Fatimata, Danièle Dieng Sara, and Mbow Cheikh. "Importance Value Index and Species Relative Contribution to Carbon Stocks in Savanna Ecosystems : Implications for Climate Change Mitigation and Forest Management in Patako Forest (Senegal)." International Journal of Innovative Science and Research Technology 7, no. 9 (2022): 359–65. https://doi.org/10.5281/zenodo.7114845.

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Understanding species Importance Value Index (IVI) and contribution to carbon storage is key to improving knowledge on climate change mitigation and forest management models. The present study conducted in Patako Forest aims to investigate how species harvested for fuelwood and timber contributed to carbon sequestration. Data was collected using a stratified random sampling in 251 plots from different vegetation types. The results showed a good species richness of 102 species with significant variation of IVIs among vegetation types. Indeed, more than 90% of the IVIs was dominated by 21 specie

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