scholarly journals Health assessment of vegetation composition in the reclamation area of PT Natarang Mining, Tanggamus Regency, Lampung Province

2021 ◽  
Vol 886 (1) ◽  
pp. 012076
Author(s):  
Rahmat Safe’i ◽  
Elmo Rialdy Arwanda ◽  
Cici Doria ◽  
Ira Taskirawati
Keyword(s):  
Tree Species ◽  
Damage Index ◽  
Health Assessment ◽  
Vegetation Composition ◽  
Importance Value Index ◽  
Importance Value ◽  
Health Value ◽  
Mining Areas ◽  
Value Range ◽  
Reclamation Area

Abstract Reclamation is a recovery activity in mining areas, one of which is revegetation. The success of revegetation plants can be seen from the health of the composition and structure of the vegetation when the trees are six years old and over. This study aims to determine the health of the vegetation composition (location, type, and level of tree damage) in the reclamation area of PT Natarang Mining, Tanggamus Regency, Lampung Province. The location of this research is in the area around the main office of PT Natarang Mining, Way Linggo Forest, Bandar Negeri Semuong, Tanggamus Regency, covering an area of 2.97 Ha. The research was conducted through vegetation analysis using the circular plot method and assessing the health of the vegetation composition based on the damage index at the plot level. The results showed that tree vegetation obtained 12 species. The most common tree species found was Falcataria moluccana (Sengon) which amounted to 22 individuals. The most significant contribution of tree species indicated by the highest importance value index was Falcataria moluccana. The location of most damage found in most of the plots was at the bottom of the stem (code 3) and the bottom and top of the stem (code 4). Types of open wound damage (code 03) and gall rust (code 26) were the most dominant causes of damage, with an average damage rate of 35% and 22%, respectively. The health value of the vegetation composition has a value range of 1.20 – 2.00. The average health value of the vegetation composition is 1.50, which is included in the medium category.

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

The characteristics of Shorea macrophylla’s habitat in Tane’ Olen, Malinau District, North Kalimantan Province, Indonesia

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Muhammad Fajri ◽  
Pratiwi PRATIWI ◽  
Yosep Ruslim
Keyword(s):  
Water Content ◽  
Bulk Density ◽  
Tree Species ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Importance Value Index ◽  
Importance Value ◽  
Total N ◽  
Organic C ◽  
Physical And Chemical

Abstract. Fajri M, Pratiwi, Ruslim Y. 2020. The characteristics of Shorea macrophylla’s habitat in Tane’ Olen, Malinau District, North Kalimantan Province, Indonesia. Biodiversitas 21: 3454-3462.  Shorea macrophylla is a tree species in Tane' Olen forest area. This study analyzed the soil’s physical and chemical properties, topography, and microclimate of S. macrophylla’s habitat. A purposive method was used to select a sampling plot and to place the subplots. Soil was analyzed to determine the physical properties, i.e., texture, bulk density, porosity, and water content, and the chemical properties, i.e., pH, CEC, total N, organic C, C/N ratio, P, K , and Al saturation. Importance value index was determined for each tree species to know the species composition in the study site. Only the dominant species were presented. The soil at the study site had bulk density of 0.60-1.31 gram cm³-1, porosity 50.60%-77.35%, water content 34.88%-95.37%, and soil texture sandy clay. The chemical properties of the soil were as follows: pH was 3.6-4.8, N 0.05%-0.19%, organic C 1.40%-3.65%, P 0.41-1.22 mg 100 gr-1, K 58.68-232.55 mg 100 gr-1, and Cation Exchange Capacity (CEC) 5.35-10.81 meg 100gr -1. Slope ranged between 0 and 25%. The microclimate characteristics were as follows: temperature was 24-26.5°C, relative humidity 76-87%, and light intensity 145-750 Lm. Trees species with an IVI ≥ 10% were S. macrophylla, Madhuca spectabilis, Myristica villosa Warb, Scorodocarpus borneensis, Eugenia spp., Palaquium spp., Macaranga triloba, Syzygium inophyllum and Shorea sp. Positive associations were observed between S. macropylla and S. borneensis, Eugenia spp., Palaquium spp.. and M. triloba, and negative associations were observed between S. macropylla and M. spectabilis, M. villosa Warb, S. inophyllum, and Shorea sp. S. macrophylla grows on riversides with flat and gentle topography, acidic soil, and lower fertility but with suitable microclimate. This species can be recommended to be planted in degraded tropical forest areas but the microclimate and soil properties should be taken into account.

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 Diversity of trees and structure of forest habitat types in Mt. Tago Range, Mindanao, Philippines

2020 ◽  
Vol 14 (3) ◽  
Keyword(s):  
Tree Species ◽  
Protected Area ◽  
Direct Result ◽  
Land Conversion ◽  
Habitat Types ◽  
Importance Value Index ◽  
Importance Value ◽  
Forest Habitat ◽  
Forest Habitats ◽  
Montane Rainforest

Mt. Tago Range in Bukidnon has been subjected to deforestation and forest fragmentation due to logging ca. 35–40 years ago or as direct result of land conversion for agriculture, human settlements and wildlife product harvesting. It is currently not a protected area. This study aimed to provide data on the tree species diversity, structure, composition, conservation status and threats of the forest habitats in the site. Tree survey in the range was conducted in 2018–2019 using thirty-nine 20 x 20 m sampling plots and six one-kilometer transect lines. A total of 1,032 tree individuals from 54 families, 85 genera and 121 species were documented. The site is composed of four tropical forest habitat types namely: lower montane rainforest, upper montane rainforest, mossy-pygmy and forest over ultramafic rocks. These forest habitats also differed in species composition, elevation, substrate, dominance and structure in terms of height and diameter at breast height. The highest diversity index was observed in the mid-elevation and decreasing toward the peak. The diversity pattern herein is attributed to elevation, forest degradation due to anthropogenic activities and nature of habitat. The most abundant families were the Myrtaceae (23%), Podocarpaceae (12.8%) and Fagaceae (12.6%). At the family level the most dominant taxa included the Moraceae (8.7%), Rubiaceae (6.5%) and Myrtaceae (5.8%). Highest importance value index (IVI) in all forest types fell within the range of IVI’s for tropical forests. Assessment of conservation and ecological status revealed that 11 species (8%) are threatened, 28 (22%) Least Concern (LC) and 16 (12%) are Philippine endemics. Threats to tree diversity in Mt. Tago Range included land conversion for agriculture and settlement, illegal logging and lack of legislative protection. The implementation of conservation strategies by stakeholders is recommended to protect the tree species communities and population across the forest habitat types in the site. KEYWORDS: biodiversity, flora, Shannon-Weiner Index, Importance Value Index, non-Protected Area

scholarly journals FOREST STRUCTURE AND REGENERATION PATTERN OF BETULA UTILIS D. DON IN MANASLU CONSERVATION AREA, NEPAL

2014 ◽  
Vol 20 ◽  
pp. 107-113 ◽  
Author(s):  
Hishila Sujakhu ◽  
Kamal Raj Gosai ◽  
Siddhi Bir Karmacharya
Keyword(s):  
Forest Structure ◽  
Tree Species ◽  
Dominant Species ◽  
Importance Value Index ◽  
Importance Value ◽  
Conservation Area ◽  
Regeneration Pattern ◽  
Lower Elevation ◽  
Betula Utilis ◽  
Diameter Curve

Forest structure and regeneration of Betula utilis (D. Don) was studied in birch forestlocated in Samagaun valley (3500 – 4000 m) of Manaslu Conservation Area. Vegetationsampling was done by quadrat method. Altogether 40 quadrats were sampled to determinethe Importance Value Index (IVI) of tree species, and distribution pattern of seedlings andsaplings. Regeneration was assessed by density - diameter curve. Four tree species wererecorded from the forest. Betula utilis was the dominant tree species with the highestImportance Value Index (173.22) in mixed Betula forest and 262.96 in pure Betula forestand Abies spectabilis was the co – dominant species (65.95) in mixed Betula forest whileRhododendron campanulatum was the co-dominant species (37.03) in pure Betula forest.Density of Betula utilis increased with increase in elevation where as density of other treespecies decreased with increase in elevation. Mixed Betula forest at lower elevation wasyoung. The density diameter curve of the tree population of Betula utilis, both on mixed andpure forests, deviated slightly from the typical reverse J shaped structure and hence did notshow the sustainable regeneration. The sapling density was higher than seedling density.The distribution of seedlings and saplings were not uniform among the sampling plots.DOI: http://dx.doi.org/10.3126/eco.v20i0.11472ECOPRINT An International Journal of EcologyVol. 20, 2013page: 107-113

scholarly journals Population structure, vegetation composition and economic potentials of Parkia timoriana in Meru Betiri National Park, East Java, Indonesia

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Anik Nur Hidayati ◽  
ERVIZAL A.M. ZUHUD ◽  
NURI ANDARWULAN
Keyword(s):  
Population Structure ◽  
National Park ◽  
Local Community ◽  
Economic Potential ◽  
Vegetation Composition ◽  
Importance Value Index ◽  
Importance Value ◽  
Economic Values ◽  
Conservation Values ◽  
Study Sites

Abstract. Hidayati AN, Zuhud EAM, Andarwulan N. 2020. Population structure, vegetation composition and economic potentials of Parkia timoriana in Meru Betiri National Park, East Java, Indonesia. Biodiversitas 21: 203-210. Kedawung (Parkia timoriana (DC.) Merr.) is one of rare medicinal plant species because it is only found in a small part of Indonesia. P. timoriana has high ecological and economic potential because it contains various active compounds such as anticancer. This study was aimed to investigate the population structure, vegetation community composition, and distribution, as well as the potential production and economic values of P. timoriana in rehabilitation zone in Meru Betiri National Park, East Java, Indonesia. The methods used were vegetation analysis, direct observation, and in-depth interviews with selected respondents using purposive sampling. We found that P. timoriana population at the study sites was only at tree and pole stages, while no sapling and seedling was found. This condition implies that regeneration of P. timoriana at the study sites was not happening which can threaten its sustainability in the future. P. timoriana dominated the vegetation at the studied sites which were indicated by the highest importance value index. Utilization of P. timoriana by the local community was by selling the seeds to medicinal industries or used as herbal medicine. While having conservation values, the management of P. timoriana stands in Andongrejo Resort also had the potential to generate economic values up to 17.6 billion rupiahs. Considering the great economic potential of P. timoriana and to ensure sustainability, so that nursery, breeding and regeneration of P. timoriana should be made in order to obtain the best quality seeds.

scholarly journals Tree Species Composition and Forest Stratification along the Gradients in the Dry Deciduous Forests of Godavari Valley, Telangana, India

2018 ◽  
Vol 4 (1) ◽  
pp. 1-12
Author(s):  
Sateesh Suthari ◽  
Vatsavaya S. Raju
Keyword(s):  
Species Composition ◽  
Tree Species ◽  
Forest Cover ◽  
Deciduous Forests ◽  
Flowering Plant ◽  
Total Density ◽  
Importance Value Index ◽  
Importance Value ◽  
Tree Species Composition ◽  
Godavari Valley

Abstract It is important to understand the tree species composition, abundance, species diversity and stratification in tropical dry deciduous forests that are under threat. A quadrat study was attempted in the dry deciduous forests along the ecological gradients in the Godavari Valley of northern Telangana, India. The study records the presence of 110 flowering plant taxa belonging to 82 genera and 37 families in 120 sampled plots, and there was enumeration of 15,192 individuals of ≥10 cm girth at breast height. Tectona grandis (teak) is the principal forest cover component in the region, which often formed pure stands in Adilabad and, to some extent, in Nizamabad districts. Further down to the Warangal district, teak was gradually replaced by Terminalia alata. Twenty tree species were found dominant at one place to the other, and the top 10 dominant taxa have shared nearly 41% of the total density of the forest cover. The tree relative density ranged from 0.007% to 20.84%. The values of Importance Value Index were between 0.245 (12 spp. including some exotics) and 32.6 (teak). These baseline data help to know the change detection along the gradients in the tropical forest ecosystem of a major river valley in the region and the drivers of change

scholarly journals Natural regeneration potential of Madhupur National Park, Bangladesh

2020 ◽  
Vol 49 (4) ◽  
pp. 989-996
Author(s):  
Md Rayhanur Rahman ◽  
MK Hossain ◽  
Md Akhter Hossain ◽  
Mohammad Emran Hasan
Keyword(s):  
Tree Species ◽  
Natural Regeneration ◽  
National Park ◽  
Alien Invasive Species ◽  
Importance Value Index ◽  
Importance Value ◽  
Height Range ◽  
Shorea Robusta ◽  
Extensive Collection ◽  
Litsea Glutinosa

Natural regeneration is an essential tool to evaluate the overall health of a forest ecosystem. Natural regeneration of the tree species in Madhupur National Park showed 47 regenerating tree species among which Shorea robusta has maximum density (18,046 seedlings per ha) followed by Aporosa sp., whereas minimum density (19 seedling per ha) was recorded for Cassia nodosa, Litsea glutinosa, Grewia asiatica and Syzygium cumini, respectively. Relative density, relative frequency and relative abundance were estimated to assess the Importance Value Index (IVI) of the seedlings of different tree species. IVI of S. robusta was highest (66.25 out of 300) followed by Mallotus philippensis (27.33). G. asiatica, Derris robusta, and L. glutinosa showed the lowest IVI (0.93) among the regenerating tree species. Distribution of seedlings into different height classes showed that maximum number (31.4%) of seedlings in the height range of 50 - <100 cm. Among the recorded seedlings, Protium serratum showed maximum (11%) recruitment success. Alien invasive species, pineapple and banana based participatory agroforestry, frequent occurrence of fire, extensive collection of fuelwood and litter are the potential threats to the natural regeneration of Madhupur National Park.

scholarly journals Study Of Plant Regeneration Potential In Tropical Moist Deciduous Forest In Northern India

2013 ◽  
Vol 2 (1) ◽  
pp. 153-163 ◽  
Author(s):  
Ashish K Mishra ◽  
Omesh Bajpai ◽  
Nayan Sahu ◽  
Anoop Kumar ◽  
Soumit K Behera ◽  
...  
Keyword(s):  
Plant Species ◽  
Tree Species ◽  
Population Distribution ◽  
Deciduous Forest ◽  
Importance Value Index ◽  
Importance Value ◽  
Regeneration Potential ◽  
Northern India ◽  
Regeneration Status ◽  
Tree Sapling

Regeneration patterns of species population can address climate change by adaptive evolution or by migrating association to survive in their favorable climate and finally decided to particular forest future. In this paper we examined the status of regeneration potential of tree species in tropical moist deciduous forest at Katerniaghat Wildlife Sanctuary, Northern India. To investigate tree, sapling and seedling population distribution, we examine regeneration status in 145 random plots in study area. Total 74 plant species of 60 genera belonging to 32 families out of which 71 species of trees, 56 of seedlings and 60 of saplings were found in the forest. On the basis of importance value index Mallotus philippensis, Tectona grandis, Shorea robusta, Syzygium cumini and Bombax ceiba have been found as dominant species in the study area. As far as the regeneration status is concerned, the maximum tree species (64%) have been found in good regeneration category. Significant variations in species richness and population density, between three life form (i. e. tree, sapling and seedling) have been found. In which only three new tree species Prosopis juliflora, Psidium guajava and Morus alba were added in sapling and seedling stage. It is major ecological concern that about 19 % economically important plant species like Madhuca longifolia, Terminalia elliptica, Buchanania cochinchinensis, some Ficus species etc. have been found in poor regeneration phage, whereas about 7% species found in no regeneration categories. International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 153-163 DOI: http://dx.doi.org/10.3126/ije.v2i1.9218

Quantitative analysis of tree species in two community forests of Dolpa district, mid-west Nepal

1970 ◽  
Vol 2 (3) ◽  
pp. 23-28 ◽  
Author(s):  
Ripu M Kunwar ◽  
Shiv P Sharma
Keyword(s):  
Quantitative Analysis ◽  
Tree Species ◽  
Deciduous Forest ◽  
Basal Area ◽  
Stand Density ◽  
Importance Value Index ◽  
Importance Value ◽  
Cedrus Deodara ◽  
Community Forests ◽  
Pinus Wallichiana

Two community forests, Amaldapani and Juphal from Dolpa district, were selected for a study of quantitative analysis of tree flora. A total of 419 individual trees representing 16 species, 16 genera and 11 families were recorded. Total stand density and basal area were, respectively, 2100 trees ha-1 and 90 m2ha-1 in Amaldapani and 2090 tree ha-1 and 152 m2ha-1 in Juphal. Of the families, the Pinaceae was the most diverse, with 28 individuals representing five species and five genera, followed by the Rosaceae with three individuals representing two species and two genera. Pinus wallichiana, Abies spectabilis, Quercus semecarpifolia and Cedrus deodara had the highest importance value index and could therefore be considered the dominant species. Since the study area was diverse in tree population of conifers and deciduous forest tree species, it is essential to carry out further studies in order to establish conservation measures that will enhance local biodiversity. Key words: Vegetation, tree species, Pinus wallichiana, community forest, Dolpa Himalayan Journal of Sciences 2(3): 23-28, 2004

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