scholarly journals Analysis of Vegetation and Community Attitude as the Reforestation Efforts at Greenbelt Area of Multipurpose Reservoir of Wonogiri

2020 ◽  
Vol 35 (2) ◽  
pp. 228
Author(s):  
Imah Solikhatun ◽  
Maridi Maridi ◽  
Maria Theresia Sri Budiastuti
Keyword(s):  
Diversity Index ◽  
Tectona Grandis ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Community Attitudes ◽  
Community Attitude ◽  
Reforestation Program ◽  
Depth Interviews ◽  
Multipurpose Reservoir

<p>Land conversion has caused the function of the greenbelt for reservoir to be less effective. The management of the greenbelt area is needed to maintain the primary function of the reservoir. Therefore, a vegetation analysis in the greenbelt area is necessary to evaluate the condition of the existing vegetation and community attitude to maintain the greenbelt area. This study aims at identifying the current condition of the greenbelt area and the diversity of vegetation as well as the community attitude at the greenbelt area of multipurpose reservoir of Wonogiri. Vegetation sampling was done by purposive sampling using directed line quadrant method, while community attitude sampling was performed using in-depth interviews. This study found 14 species of vegetation in the greenbelt area. The most significant contribution of vegetation species was shown by the Importance Value Index (IVI), with 14 species of tree in which teak (<em>Tectona grandis L</em>.) was the species with the highest IVI value. The species diversity index was 1.15-1.7 and it was included in the medium category. Reforestation efforts can be continued because the vegetation condition has shown moderate stability. Community attitudes towards the greenbelt largely support the existence of management although people still and will use the land without disturbing the existing plants. The reforestation program that has been carried out in the last few years is expected to be able to restore the greenbelt in support of the reservoir function.</p>

scholarly journals Seedling Diversity Considerably Changes Near Localities in Three Salinity Zones of Sundarbans Mangrove Forest, Bangladesh

2021 ◽  
Vol 6 (3) ◽  
pp. 65241
Author(s):  
ASM Helal Siddiqui ◽  
Md. Masudur Rahman ◽  
Md. Najmus Sayadat Pitol ◽  
Md. Akramul Islam ◽  
Sk Md. Mehedi Hasan
Keyword(s):  
Diversity Index ◽  
Species Evenness ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Excoecaria Agallocha ◽  
Salinity Zone ◽  
The Status ◽  
Sundarbans Mangrove ◽  
Family Importance Value

The status of natural seedlings near localities in the Sundarbans Mangrove Forest was assessed through a stratified random sampling method  to observe seedling composition and diversity, importance value index, family importance value, and species evenness. A total of 63 sample plots of 3,990 m2 area were surveyed in three natural and anthropogenic influenced salinity zones of Sundarbans. A total of 16,166 seedlings of 15 species under 12 families were found. Family Euphorbiaceae showed the highest (59.59%) family relative density and Rhizophoraceae presented the highest (20%) family relative diversity Index (FRDI). The maximum family importance value (FIV) showed by Euphorbiaceae (66.26) and the maximum importance value index (IVI) of species has been observed in Excoecaria agallocha (114.74). Excoecaria agallocha showed the highest relative density (59.6%) and relative abundance (39.87%) where the highest relative frequency (15.27%) was observed by Heritiera fomes. The mean stem density and species diversity index in the whole survey area was 2701 stem ha-1 and 0.0009 correspondingly. The Shannon-Wienner's diversity index was 1.52 where the maximum Shannon-Wienner's diversity index was 2.708. The Simpson's diversity index and Dominance of Simpson index were 0.38 and 0.62 with Simpson's reciprocal index 2.632. The Species evenness index, Menhinick’s, and Margalef's indices were 0.561, 0.118, and 1.445 respectively. The Species diversity index of the three salinity zones were 0.0017, 0.0029, and 0.0035 respectively. The Shannon-Wienner's diversity index of Low Salinity Zone (LSZ), Moderate Salinity Zone (MSZ), and Strong Salinity Zone (SSZ) were 0.887, 1.369, and 1.845 correspondingly where LSZ (0.632) showed the highest Simpson's diversity index follow ed by MSZ (0.394) and SSZ (0.21). The Species evenness index for LSZ, MSZ, and SSZ were 0.346, 0.505, and 0.742 where Menhinick’s Index were 0.148, 0.210, and 0.207 respectively. The analysis showed poor diversity indices and the area was dominated by few species with few families. The status is also reduced with increasing salinity.

scholarly journals Phytosociological Survey of Sugarcane Crop Weeds in Different Agroecological Areas in Tucumán Province, Argentina

2019 ◽  
Vol 37 ◽  
Author(s):  
D.C. CABRERA ◽  
S. CHAILA ◽  
M.T. SOBRERO ◽  
A.E. VARELA
Keyword(s):  
Cynodon Dactylon ◽  
Diversity Index ◽  
Similarity Index ◽  
Cyperus Rotundus ◽  
Group Method ◽  
Panicum Maximum ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Pampean Plain

ABSTRACT: Weeds constitute the main constraint on the productivity of sugarcane agroecosystems in Argentina. This work aimed to analyze the floristic and phytosociological composition of sugarcane weed communities in different agroecological areas in Tucumán. Fifteen plots from each area were sampled 60 to 90 days after crop shooting, by throwing a 0.5 m x 0.5 m quadrat metallic frame six times in random directions in each of the plots. Species found within the frame were identified. Later, fresh and dry biomass weight were calculated per quadrat sample and species. Frequency, density, dominance, importance value index, Shannon-Wiener and Simpson species diversity index and Jaccard similarity index were calculated. The unweighted pair group method with arithmetic mean (UPGMA) was used to interpret similarity. Overall, 35 species were identified, 24 of which were dicotyledons and 11 monocotyledons. Eighteen of them were annual species, versus 17 which were perennial. Considering IVI, the most outstanding families were Poaceae, Cyperaceae, Euphorbiaceae, Amaranthaceae and Asteraceae. The results obtained in all the areas revealed the importance of the species Panicum maximum, Sorghum halepense, Cyperus rotundus, Cynodon dactylon and Euphorbia hyssopifolia. The areas with greater and less diversity were the Depressed Plain-Non-Saline Depressed Plain Subregion and the Subhumid-Humid Chaco-Pampean Plain, respectively. There was a 53% similarity between the Depressed Plain-Saline Depressed Plain and the Depressed Plain-Non-Saline Depressed Plain, and a 47% similarity between the Humid and Perhumid Foothills and the Subhumid-Humid Chaco-Pampean Plain. Hierarchical clustering and Jaccard index led to similar results.

scholarly journals Keanekaragaman Lamun di Pantai Kora-Kora, Kecamatan Lembean Timur Kabupaten Minahasa Sulawesi Utara (The Diversity of Seagrass in Kora-kora Beach, East Lembean District, Minahasa Regency, North Sulawesi Province)

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Yuniarti Yurike Wondal ◽  
Sendy Rondonuwu ◽  
Pience V Maabuat
Keyword(s):  
Random Sampling ◽  
Diversity Index ◽  
Seagrass Species ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Important Species ◽  
North Sulawesi ◽  
Halodule Uninervis ◽  
Syringodium Isoetifolium

Abstrak Penelitian dilakukan di Pantai Kora-Kora, Kecamatan Lembean Timur, Kabupaten Minahasa, Provinsi Sulawesi Utara dari Mei hingga Juni 2017. Penelitian bertujuan untuk menganalisis keanekaragaman lamun di Pantai Kora-Kora. Penelitian menggunakan metode purposive random sampling untuk menentukan lokasi penelitian. Hasil penelitian menunjukan bahwa di Pantai Kora-Kora, Kecamatan Lembean Timur ditemukan enam (6) jenis lamun yang termasuk dalam dua (2) suku yaitu Hidrocharitaceae meliputi Enhallus acoroides, Thallasia hemprichii, dan Halodule uninervis dan Cymodoceaceae yaitu Cydomocea rotundata, C. serrulata dan Syringodium isoetifolium.  Jenis-jenis tersebut ialah lamun yang tersebar di pesisir tropis Indo-Pasifik. Jenis yang berperan penting berdasarkan INP di Stasiun I, II dan III berturut-turut yaitu E. acoroides (58,50%), H. uninervis (58,60%) dan S. isoetifolium (63,0%). Indeks keanekaragaman jenis lamun di lokasi penelitian di Panta Kora-kora termasuk sedang (H’:1,71).   Kata kunci: Pantai Kora-Kora, keanekaragaman lamun. Abstract The research was conducted in the Kora-Kora Beach, East Lembean District, Minahasa Regency, North Sulawesi Province from May to June 2017. The aim of study was to analyze the diversity of seagrass on Kora-Kora Beach. The purposive random sampling method was used in this research to determine the research locations. The results showed that Kora-Kora Beach had six (6) seagrass species that were included in two (2) families namely Hidrocharitaceae ( Enhallus acoroides, Thallasia hemprichii, Halodule uninervis) and Cymodoceaceae (Cydomocea. rotundata, C. serrulata and Syringodium isoetifolium). These seagrass species were found in the tropical Indo-Pacific coastlines. The important species based on Importance Value Index  in Station I, II and III were E. acoroides (58.50%), H. uninervis (58.60%) and S. isoetifolium (63.0%), respectively. The seagrass species diversity index in the study areas in the Kora-kora Beach was moderate (H ': 1.71).Keywords:  Kora-Kora Beach, seagrass diversity.

scholarly journals KERAGAMAN SPESIES HERBA DAN KEMIRIPAN KOMUNITAS TUMBUHAN PADA DUA PERIODE PEMANTAUAN BERURUTAN DI AREA REKLAMASI PT ADARO INDONESIA, PROVINSI KALIMANTAN SELATAN, INDONESIA

2021 ◽  
Vol 4 (2) ◽  
pp. 365
Author(s):  
Yoga Bayu Santoso ◽  
Mochamad Arief Soendjoto ◽  
Daniel Itta ◽  
Fazlul Wahyudi
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Herbaceous Species ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Mining Areas ◽  
Reclamation Area ◽  
Number Of Individuals

The development of herbaceous species according to the time of monitoring at certain sample locations in the PT Adaro Indonesia reclamation area has never been published. The purpose of the study was to compare the diversity of species and the similarity of plant communities growing in certain locations in two consecutive monitoring periods. Four locations that have been revegetated were sampled. At each location, 13 measuring plots (20 m x 20 m) were made and placed systematically. In each of these plots, 2 sub-plots (5 m x 5 m) were placed in 2 angles in opposite positions. From each sub-plot data in the form of herbaceous species names and number of individuals were collected. In one location, the number of plots changed because part of this location turned out to be active mining areas. The number of remaining plots (6 plots) was considered to not affect the results. Data is processed to obtain the density of each species at a certain location (Ki), the relative density of certain species (KRi), the frequency of each species at a certain location (Fi), the relative frequency of certain species (FRi), the importance value index (IVI), the index of species diversity Shannon-Wienner (H'), and the similarity index of the Dice community (IS). The number of species varies at each sample location and shows an increase from first monitoring to second monitoring. The species diversity index also increases. Community similarity index varies, both with calculations based on the presence or absence of species and based on the IVI. Both methods of calculation can be used but it is recommended to use calculations based on IVI.Keywords: Diversity, Monitoring period, Reclamation area, Similarity

scholarly journals TIPE KOMUNITAS HUTAN LAHAN KERING DI HUTAN LINDUNG SENTAJO, KABUPATEN KUANTAN SINGINGI, RIAU

2018 ◽  
Author(s):  
Pebriandi ◽  
Omo Rusdiana ◽  
Muhammad Buce Saleh
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Systematic Sampling ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Dominance Index ◽  
Coverage Area ◽  
Evenness Index

Sentajo Protected Forest located in Kuantan Singingi Regency, Riau Province. There is no information aboutvegetation diversity in this location. Therefore this study was conducted. This study aimed to determine the diversity ofvegetation, structure, and composition of each community in Sentajo Protected Forest. The study was conducted in AprilSeptember2016. A sampling design was determined using systematic sampling with random start. The sampling intensityused was 5%. The parameters measured in this study were the importance value index, similarity index betweencommunities, species diversity index, evenness index, dominance index, regeneration, as well as horizontal and verticalstructures. Based on the type of soil, elevation, and slope, 6 communities were grouped from the dense coverage area(forested). The results showed that the Sentajo Protected Forest had 424 flora consisted of 254 species, and 102 families.Sentajo Protected Forest had similarity index between 18 - 64%, species diversity index of 2.62 - 4.15, evenness index of0.59 - 0.86, dominance index of 0.02 - 0.08. The larger the diameter of the tree, the smaller the number of individuals.The stratification of the canopy had 5 layers of canopy. Sentajo Protected Forest regeneration was relatively good as thenumber of seedlings&gt; saplings&gt; mature trees.

scholarly journals Tree diversity, stand structure and community composition in tropical forest of Rajaji tiger reserve, Northern India

2018 ◽  
Vol 10 (3) ◽  
pp. 945-953 ◽  
Author(s):  
Akash . ◽  
Navneet . ◽  
B.S. Bhandari
Keyword(s):  
Tropical Forest ◽  
Community Composition ◽  
Stand Structure ◽  
Diversity Index ◽  
Stand Density ◽  
Tree Diversity ◽  
Importance Value Index ◽  
Importance Value ◽  
Northern India ◽  
Tiger Reserve

In present study, we present data on tree diversity, stand structures and community composition in six sites of tropical forest in Rajaji tiger reserve, Northern India. The enumeration of 72 plots results a total of 19,050 individuals, 47 species, 42 genera, 25 families in which Holoptelia integrifolea, Dalbergia sissoo, Shorea robusta, Cassia fistula and Trewia nudiflora were the species which showed higher importance value index (IVI) in the study area. The stand density of the six sites ranges from 149.99 - 397.91 hac-1 where as the total basal area of trees ranges from 3.612 - 46.813 m2/hac-1. The Shannon diversity index ranged from 1.35 to 2.51, Simpson index ranged from 0.097 - 0.446, Margalef index ranged 2.584 - 4.9, The Evenness index ranged from  0.551 - 0.852 in the study area. Further the studied area has showed ample evidences from indices in supporting the higher floristic diversity and stand structure after providing the present area as a status of tiger reserve.

scholarly journals ANALISIS VEGETASI DAN KEANEKARAGAMAN TUMBUHAN DI KAWASAN MANIFESTASI GEOTERMAL IE SUUM KECAMATAN MESJID RAYA KABUPATEN ACEH BESAR

2018 ◽  
Vol 5 (2) ◽  
pp. 114
Author(s):  
Muslich Hidayat
Keyword(s):  
Hot Spring ◽  
Diversity Index ◽  
Geothermal Area ◽  
Importance Value Index ◽  
Importance Value ◽  
High Category ◽  
A Value ◽  
Higher Temperature ◽  
Chemical Conditions ◽  
Manifestation Area

Ie Suum geothermal manifestation area is a hot sering resource in Ie Suum Village at Aceh Besar regency. Ie Suum hot spring is a stretch of Seulawah Agam mountain and is one of the most active volcanic mountains in Aceh. This area has higher temperature and soil pH compared to areas far from geothermal areas. Therefore, this study can be associated with the unique characteristics of vegetation of geothermal areas will be different from vegetation plants that exist in other vegetation types. This research was conducted by quadrat transect method by determining the location of the research by purposive sampling divided into four point (station) with size determined based on plant habitus that is: herb (1x1 m2), bush / shrub (2x2 m2), pole ( 5x5 m2), and trees (10x10 m2). Data analysis is done qualitatively and quantitatively. Quantitative analysis of data by using vegetation analysis are: density (Kr), Frequency (Fr), Dominance (Dr), and Diversity Index (Ĥ). The results of the study found 23 families consisting of 34 species with a total number of individuals as many as 534 scattered in 4 observation stations divided into herbaceous plants, shrubs, poles and trees. Important Value Index (INP) vegetation in geothermal manifestation area of Ie Suum in all stations was obtained by INP 225,86%. This value belongs to the high category. The species species that have the highest index of other species Axonopus compressus is 17.02%, while the lowest Importance Value Index is Clidemia hirta with a value of 1.32%. The high value of INP Axonopus compressus is due to this species living on dry soil moisture and high acidity. The biodiversity index (Ĥ) of geothermal area of Ies Suum of Mesjid Raya District of Aceh Besar is Ĥ = 3,508. Vegetation of plants in the geothermal area ie suum belong to the high category due to plants that can adapt to high environmental physical-chemical conditions.

scholarly journals Short Communication: Species composition and diversity of vegetation in dryland agricultural landscape

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Ida Ardiyaningrum ◽  
MARIA THERESIA SRI BUDIASTUTI ◽  
KOMARIAH KOMARIAH
Keyword(s):  
Species Composition ◽  
Agricultural Landscape ◽  
Short Communication ◽  
Diversity Index ◽  
Sampling Technique ◽  
Terrestrial Ecosystems ◽  
Importance Value Index ◽  
Importance Value ◽  
Vegetation Diversity ◽  
Wiener Diversity Index

Abstract. Ardiyaningrum I, Budiastuti MTS, Komariah. 2021. Short Communication: Species composition and diversity of vegetation in dryland agricultural landscape. Biodiversitas 22: 65-71. Drylands are a part of the terrestrial ecosystems with a relatively larger area compared to wetlands. Selo has dryland with steep slopes and high rainfall, resulting in relatively high soil erosion. The land use in this sub-district is dominated by plantations and agriculture, with conditions that have not been fully balanced by trees as a means of controlling erosion and supporting vegetation diversity. Therefore, studies on biodiversity are important as an indicator of dryland sustainability, especially in terms of soil and water conservations. This research aimed to study the species composition and diversity of vegetation in the dryland agricultural landscape in Selo Sub-district, Boyolali District, Central Java Province, Indonesia. Vegetation analysis was performed by using the quadratic sampling technique for tree category, pole category, sapling category, and seedling categories. The results indicated that Fabaceae had the highest number of species. Tree species with the highest Importance Value Index were Toona sureni, Artocarpus heterophyllus, and Casuarina junghuhniana, respectively. The Shanon-Wiener Diversity Index showed that the vegetation at tree, pole, and sapling stages had a moderate diversity, and seedling-stage vegetation had a low diversity.

scholarly journals Diversity and characteristics of mangrove vegetation in Pulau Rimau Protection Forest, Banyuasin District, South Sumatra, Indonesia

2019 ◽  
Vol 20 (4) ◽  
pp. 1215-1221
Author(s):  
ERNIK YULIANA ◽  
YUNI TRI HEWINDATI ◽  
ADI WINATA ◽  
WIBOWO A DJATMIKO ◽  
ATI RAHADIATI
Keyword(s):  
Tree Species ◽  
Diversity Index ◽  
Forest Edge ◽  
Importance Value Index ◽  
Importance Value ◽  
Mangrove Species ◽  
Protection Forest ◽  
Mangrove Tree ◽  
Mangrove Vegetation ◽  
Study Sites

Abstract. Yuliana E, Hewindati YT, Winata A, Djatmiko WA, Rahadiati A. 2019. Diversity and characteristics of mangrove vegetation in Pulau Rimau Protection Forest, Banyuasin District, South Sumatra, Indonesia. Biodiversitas 20: 1215-1221. The purpose of the study was to analyze the flora diversity and characteristics of mangrove vegetation in Pulau Rimau Protection Forest, Banyuasin District, South Sumatra. Data collected were the number and girth diameter of mangrove tree species, and aquatic ecology parameters using transect method. The sample plots size were 2m×2 m; 5m×5 m; 10m×10 m; for seedling, sapling, and tree, respectively. The observation plots were arranged in a row of 120 m length on two sides of the forest edge, namely Calik Riverbank and Banyuasin Riverbank. Data were analyzed using importance value index (IVI), Simpson’s diversity index and Sørensen’s community similarity. The study revealed that there were differences in mangrove characteristics in two study sites. There were 57 plant species identified inside and outside sample plots, but only 15 species (26.32%) among them were categorized as true mangrove species. Inside the sample plots, there were 11 and 10 mangrove tree species recorded on the Calik Riverbank and Banyuasin Riverbank, respectively, but only 7 species among them were found in both sites. The mangroves on Calik Riverbank were dominated by Nypa (IVI 53.59%) and Bruguiera (51.12%), while those on Banyuasin Riverbank were dominated by Sonneratia (66.91%) and Avicennia (51.73%). The Simpson’s diversity index for Calik Riverbank and Banyuasin Riverbank was 0.82 and 0.78, respectively, whereas the Sørensen’s coefficient of community between the two sites was 0.67.

scholarly journals Keanekaragaman Vegetasi Pohon pada Lahan Pekarangan di Desa Tambakrejo Kecamatan Jombang Kabupaten Jombang

2021 ◽  
Vol 5 (2) ◽  
pp. 23-28
Author(s):  
Indah Fitriani ◽  
Nur Faisal Andani ◽  
Anggi Indah Yuliana ◽  
Ahmad Syaifudin
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Residential Areas ◽  
Importance Value Index ◽  
Importance Value ◽  
H Index ◽  
Purposive Sampling ◽  
Medium Level ◽  
Index Value ◽  
Important Value Index

Tambakrejo Village is an urban area located in the Jombang District. Tree vegetation continues to decline; one of the factors is the conversion of the function of yardland to residential areas. Changes in the land area will impact the structure of tree vegetation. This research was conducted by purposive sampling in 4 hamlets. Transects and species were included as random effects using the transect quadrat method (quadrat transect) by purposive sampling with tree size (10x10 m<sup>2</sup>). The data analysis was done qualitatively and quantitatively. Quantitative data analysis using vegetation analysis, namely: Importance Value Index (IVI), Dominance (C), and Diversity Index (Ĥ). Strata 3 tree vegetation H’ index in Tambakrejo Village, each hamlet is different, for Tambakberas Hamlet, H’ index value is 3.11%, Gedang Hamlet 2.97%, Nglungu Hamlet 2.91%, and for Petengan Hamlet 2, 89%. Most of the hamlets in Tambakrejo Village fall into medium-level diversity. INP index of Tambakberas Hamlet of 22.59% and lowest 2.07%. Gedang of 27.57% and lowest 2.84%, Nglungu of 19.76%, and lowest 2.86% Petengan of 28.79% and lowest 2.73%, The lowest Important Value Index is due to the transfer of the function of yard land for residential areas.

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