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

scholarly journals Assessment of Natural Regeneration Potential of Native Tree Species in a Community Managed Forest of Bangladesh

2020 ◽  
Vol 9 (1) ◽  
pp. 100-114
Author(s):  
Morgubatul Jannat ◽  
Md. Kamruzzaman ◽  
Mohammed Kamal Hossain
Keyword(s):  
Tree Species ◽  
Natural Regeneration ◽  
Diversity Index ◽  
Managed Forest ◽  
Importance Value Index ◽  
Importance Value ◽  
Regeneration Potential ◽  
Regeneration Status ◽  
Richness Index ◽  
Sampling Plot

The study was conducted to explore natural regeneration potential of a community managed forest. Village Common Forest (VCF) has been managed as a commo n property resource under the leadership of Mouza Headmen based on traditional resource management pattern. Stratified random sampling method was carried out for the inventory of the regeneration status. The sampling plot size for regeneration was 5m × 5m. About 47 regenerating tree species belonging to 22 families were recorded from the studied village common forest where Grewia nervosa was the dominant regenerated seedlings. Euphorbiaceae was the dominant family with 7 species followed by Moraceae (5 species), Rubiaceae (4 species), Anacardiaceae (3 species), Combretaceae (3 species) and Mimosaceae (3 species). Maximum Importance Value Index (IVI) was found for Grewia nervosa (27.97) followed by Brownlowia elata (21.52), Artocarpus chama (14.74) and Leea macrophylla (12.53). A total of 78% of the regenerating tree species were regenerated from seeds and 22% from coppices. Shannon-Wiener’s Diversity Index was found 3.37 where Simpson’s Diversity Index was 0.055, Moreover, Margalef’s Richness Index was calculated as 8.57 and Species Evenness Index was 0.88. The results depict that the regeneration status of studied VCF has been satisfactory and Village Common Forest still contains dense forests that represents rich biodiversity including rare species. The study might be helpful for increasing conservation importance of this forest. This study suggests further study on vegetation structure and carbon pool assessment to understand more about of this forest for future sustainability.

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

scholarly journals Ecological exploration of Kuwana forest: A tropical moist deciduous forest of eastern Terai, India

2017 ◽  
Vol 6 (12) ◽  
pp. 1811 ◽  
Author(s):  
Omesh Bajpai ◽  
Shraddha Suman ◽  
Nirmala Upadhyay
Keyword(s):  
Tree Species ◽  
Deciduous Forest ◽  
Uttar Pradesh ◽  
Principal Component ◽  
Diversity Indices ◽  
Tree Diversity ◽  
Forest Community ◽  
Importance Value Index ◽  
Importance Value ◽  
Lowland Forest

The present study was conducted in the Kuwana forest of Gonda forest division in Uttar Pradesh to explore its ecological inventories. Random stratified sampling was adopted to collect the basic information like frequency, density and abundance for the calculation of importance value index (IVI). On the basis of principal component analysis (PCA) plot, three forest communities were identified and named as, Syzygium Lowland Forest (SLF), Shorea Miscellaneous Forest (SMF) and Mallotus Miscellaneous Forest (MMF). MMF community allowed the maximum 39 while SLF minimum 18 tree species growing in it. Conversely, SMF community showed higher heterogeneous tree diversity validated by lower Dominance index (0.088) and higher Simpson index (0.912). The values of these two indices were found very low in comparison with their range for tropical forests of India. On the otherhand the diversity indices (Shannon & Fisher alpha) was calculated as maximum (2.797 & 11.960 respectively) for MMF community, which indicates the existence of better tree diversity in this forest community. The higher values of Evenness & Equitability indices (0.646 & 0.859 respectively) for SMF community showed the more evenly distribution of tree species in this community.

scholarly journals VEGETATION STRUCTURE AND REGENERATION OF VAN PANCHAYAT FORESTS IN KUMAUN HIMALAYA, UTTARAKHAND

2015 ◽  
Vol 4 (3) ◽  
pp. 69-80 ◽  
Author(s):  
Jyoti Pandey ◽  
L. S. Lodhiyal
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Vegetation Structure ◽  
Tree Density ◽  
Forest Site ◽  
Importance Value Index ◽  
Importance Value ◽  
Regeneration Potential ◽  
Kumaun Himalaya ◽  
Hill Slope

Study deals with the vegetation structure and regeneration in Van Panchayat forests in Nainital of Kumaun Himalaya. The analysis of forest was done in three sites i.e. hill top, hill slope and hill base forest site. Tree density in Jungalia and Soangaon Van Panchayats ranged from 80-2070 and 50-5270 individual ha-1 respectively. Importance value index was 8.11-137.29 in Jungalia gaon Van Panchayat while 15.65-143.04 in Soangaon Van Panchayat. Species diversity ranged from 0.09-1.97 in Jungalia gaon and 0.17-0.44 in Soangaon Van Panchayat. The occurrence of higher number of seedlings in both the Van Panchayat showed good regeneration potential of tree species. International Journal of EnvironmentVolume-4, Issue-3, June-August 2015Page: 69-80

scholarly journals Assessment of tree diversity in tropical moist deciduous forest of Mizoram University, Northeast India

2021 ◽  
Vol 13 (1) ◽  
pp. 95-100
Author(s):  
Wapongnungsang ◽  
Etsoshan Y Ovung ◽  
SK Tripathi
Keyword(s):  
Tree Species ◽  
Deciduous Forest ◽  
Diversity Index ◽  
Wild Food ◽  
University Campus ◽  
Importance Value Index ◽  
Importance Value ◽  
Mature Trees ◽  
Important Species ◽  
Balance Of Nature

Forests are the main repository of biodiversity and play an important role in maintaining the ecological balance of nature. The status of species diversity reflects the health of the ecosystem. Therefore, the information on variation in the flora, for example,  species composition, diversity and the basal area within any ecosystem like the forest of Mizoram University campus, Tanhril village, Aizawl would be important in understanding the forest wealth of the campus. Keeping in view, the study was analyzed the composition and diversity of  Mizoram University campus by laying 16 (10 m ×10 m) quadrats at random locations during 2015-2016. A total of 35 tree species belonging to 30 genera and 22 families were recorded in the forest communities of University Campus. Aporusa octandra was the most dominant tree species with maximum 31.50 importance value index (IVI), 3.29 Shannon diversity index (H0) and 6972 Simpson’s index (D) followed by Castanopsis tribuloides (28 IVI, 0.22 H0 and 5256 D) and least dominant species recorded were: Albizia odoratissima, Anogeissus acuminate, Lithocarpus elegans, Oroxylum indicum. This study suggests that the forest patches are recovering after the establishment of the University because of adequate protection which was degraded in the past by the villager for collecting the trees for firewood, edible wild food and selecting the mature trees for felling. Therefore, further studies on regeneration potential of tree species would be crucial for the conservation of ecologically important species and to assess rates of their recovery following the disturbance.

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.

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 Quantitative analysis, distributional pattern and species diversity of woody plant species of Lamberi Forest Range, Rajouri, J&K, India

2018 ◽  
Vol 10 (1) ◽  
pp. 522-527
Author(s):  
Jyoti Sharma ◽  
Anil K. Raina
Keyword(s):  
Quantitative Analysis ◽  
Species Diversity ◽  
Plant Species ◽  
Woody Plant ◽  
Diversity Indices ◽  
Distributional Pattern ◽  
Importance Value Index ◽  
Importance Value ◽  
Pinus Roxburghii ◽  
Woody Plant Species

Quantitative analysis, distributional pattern and species diversity of woody plant species of Lamberi Range of Rajouri Forest division, J&K, has been carried out by laying 50 quadrats (10m X 10m size) for trees and 100 quadrats (5m X 5m size) for shrubs. Various phytosociological parameters like frequency, density, abundance, importance value index IVI and diversity indices for trees and shrubs has been used to reveal the plant community structure of the area. The abundance to frequency ratio (A/F) for different species was determined to assess the distribution pattern of the species (regular <0.025, random 0.025-0.05 and contagious >0.05) which indicated the contagious distribution for all the species. Survey of the area revealed presence of 63 woody plant species from the study area comprising of 43 trees and 20 shrubs. Pinus roxburghii (IVI 49.7, Abundance 81.1) and Carissa opaca (IVI 81.12 abundance 7.05) have been recorded as the dominant tree and shrub, respectively, of the area. The computation of diversity indices showed that species richness and evenness i.e Shannon- Weiner’s, Margalef’s and Menhinick’s remained high for trees and low for shrubs. Simpson’s index of dominance was also high for trees. Species which needs priorities for conservation and protection and also required to be monitored have also been highlighted.

scholarly journals WEED PHYTOSOCIOLOGY AND DISTRIBUTION IN VINEYARDS IN THE SÃO FRANCISCO RIVER VALLEY

2021 ◽  
Vol 34 (1) ◽  
pp. 132-143
Author(s):  
BRUNO FRANÇA DA TRINDADE LESSA ◽  
MATHEUS ALVES DA PAZ ◽  
ARIEL MARQUES REGES ◽  
IGOR SOUZA DE OLIVEIRA ◽  
MIRELLA RODRIGUES ANTUNES
Keyword(s):  
Population Distribution ◽  
Production Systems ◽  
Plant Protection ◽  
Control Strategies ◽  
River Valley ◽  
Importance Value Index ◽  
Importance Value ◽  
Important Species ◽  
Sao Francisco River ◽  
São Francisco River

ABSTRACT Information on the different species that compose a weed community is essential for plant protection managements in production systems, which should include not only flora identification and diversity assessments, but morphological and ecophysiological aspects that can to show the potential effect of the agrosystem and guide the conduction of weed control strategies. Therefore, the objective of this work was to conduct a floristic and phytosociological surveying to identify the grouping patterns of weed populations in vineyards in the Petrolina-Juazeiro irrigated perimeter, in the Sub-Mid São Francisco River Valley, Brazil. The absolute and relative values of weed frequency, density, abundance, importance value index, population distribution level, and similarity between areas were evaluated in five properties. A high diversity of species of the families Poaceae, Malvaceae, and Asteraceae were found. The most important species found were Commelina benghalensis, Euphorbia hirta, and Cyperus aggregatus. The distribution of populations was mainly in aggregate and highly aggregate forms.

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.

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