International Journal of Biology Research International Journal of Biology Research ISSN: 2455-6548; Impact Factor: RJIF 5.22 Received: 20-02-2019; Accepted: 25-03-2019 www.biologyjournal.in Volume 4; Issue 2; April 2019; Page No. 56-59 A comparative study of tree species composition of Jaisinghnagar forest and Beohari forest of Shahdol forest range, Madhya Pradesh, India Virendra Vishwakarma1, GS Sandya2 1 Research Scholar, Department of Botany, Pt. S.N.S. Govt. P.G. College, Shahdol, Madhya Pradesh, India 2 Assistant Professor, Department of Botany, Pt. S.N.S. Govt. P.G. College, Shahdol, Madhya Pradesh, India Abstract The present paper deals the ecological diversity of tree vegetation in Jaisinghnagar and Beohari forest Shahdol district (M.P.) India. Both the forest are very well known for their characteristics as dense forest. To screen the ecological status of these forests a stratified random quadrate method was employed in the study. A total of 20 tree species were recorded from Jaisinghnagar forest and 22 tree species were recorded from Beohari Forest. The work conclude that though both the forest belong to same forest range, they differ in pattern of diversity in tree vegetation and specially in regard to the pattern of dominance. Keywords: comparative, tree, species, composition, Jaisinghnagar, Beohari, forest, ecology, diversity 1. Introduction 2. Methodology Forests are the principal bio-resources and repositories of 2.1 Description of the study site natural wealth that support human well-being and ecological The present study has been carried out in two Jaisinghnagar sustainability. The forest ecosystems provide unequal share and Beohari forests of Shahdol Division (M.P.) India. Both to the world's biodiversity (Battles et al. 2001) [1]. Thus, for the forest is located on the undulating plain of Satpura the maintenance of biodiversity it is essential to attain forest foothill, which create a great floral and faunal diversity. It is sustainability (Osorio et al. 2009) [2]. It is undoubtedly located in close Bandhavgarh National Park. The forest is justified that the long-term sustainability of forest situated very close to the bank of the Son River ecosystems is greatly concerned with plant diversity and their phytosociological attributes. Plant diversity is widely Study of tree vegetation composition and structure acknowledged to support many other communities of forests For phytosociological studies of tree vegetation in the as well as human community. Much of the overall diversity selected forest of Shahdol forest range, the quadrate depends on plant diversity, because plants provide both food methods were used. In each forest, a total of 20 sampling and habitat for other organisms (Hunter, 1990) [3]. The sites representing various categories of natural forests and ecological security of any country depends on the health of plantations were selected for vegetation sampling. At each its forests (Khosla, 1992) [4]. Thus, management and sampling site four quadrates (20 m x 20 m) were laid to maintenance of any forest is obligatory. As the over al quantify various tree vegetation. In order to analyze the condition of forest depends on its plant composition, the diversity of tree vegetation Frequency, Relative frequency, information on composition, diversity and ecological density and Relative density were calculated. Importance aspects of plant species is of primary importance in the Value Index was calculated by adding Relative frequency planning and implementation of forest biodiversity Relative density and Relative Basal Area (Chaubey et al. conservation efforts. In a typical forest knowledge of 1988 and Phillips, 1959) [7, 8]. vascular plant diversity and changes that occur with disturbance may provide planning information to Biologists a) Frequency (%) (Sarkar, 2015) [5]. Among the vascular plants tree species This term refers to the degree of dispersion of individual are much important as they are controlling the keystone species in an area and usually expressed in terms of factor, i.e., entry of light in to forest bed. Analysis and percentage. It is calculated by the equation: estimation of Tree diversity, in which a combination of physical habitat, vegetation, physiognomy, species composition and community relationship are useful in formulating forest management programme (Sarkar, 2016) b) Relative Frequency (%) [6]. The inherent variation within communities and The degree of dispersion of individual species in an area in ecosystems must be documented and used for base-line data relation to the number of all the species occurred. to effectively predict the outcome of disturbances, such as regeneration harvest methods, on floristic diversity and [6] richness (Sarkar, 2016) . 56 International Journal of Biology Research c) Density IVI of all the species (Shannon and Weiner, 1963) [9]. Density is an expression of the numerical strength of a species where the total number of individuals of each b) Species dominance (Cd) species in all the quadrats is divided by the total number of Species dominance was calculated following Simpson: quadrats studied. Density is calculated by the equation: Cd = Σ (ni/N)2, where, ni and N are the same as those for Shannon Weiner [10] information function (Simpson, 1949) . d) Relative Density (%) c) Equitability of evenness (e) Relative density is the study of numerical strength of a Equitability of evenness (Pielou, 1966) [11] refers to the species in relation to the total number of individuals of all degree of relative dominance of each species in that area. It the species and can be calculated as: was calculated as: Evenness (e) = H'/log S where, H'= Shannon index, S = number of species. e) Relative Dominance (%) Dominance of a species is determined by the value of the d) Species richness (D) basal area. Relative dominance is the coverage value of a Species richness was determined by Margalef index (1968) species with respect to the sum of coverage of the rest of the [12] as: species in the area. D=(S-1)/ln N. where, S = number of species. N= total number of individuals. f) Abundance It is the study of the number of individuals of different e) Menhinick’s index (Dmm) [13] species in the community per unit area. By quadrats method, Menhinick’s index (Whittaker, 1977) . is expressed as samplings are made at random at several places and the Dmm=S/ N, where N is the number of individuals in the number of individuals of each species was summed up for sample and S is the species number. all the quadrats divided by the total number of quadrats in which the species occurred. It is represented by the f) Equitability Index equation: The Shannon’s equitability Index (Lloyd and Ghelard, 1964) [14] is expressed as: (EH) = H/Hmax = H/ln S. Where, H is the Shannon index and S is the species number. g) Importance Value Index This index is used to determine the overall importance of g) Berger-Parker Dominance Index each species in the community structure. In calculating this The Berger-Parker Dominance Index is a simple measure of index, the percentage values of the relative frequency, the numerical importance of the most abundant species and relative density and relative dominance (Relative Basal is expressed a d = Nmax/N. Area) are summed up together and this value is designated N max is the number of individuals in the most abundant as the Importance Value Index or IVI of the species. species and N is the total number of individuals in the IVI (of trees) = Relative basal area + Relative frequency + sample. The increase in the value of reciprocal of Berger- Relative density Parker Dominance Index reflects the increase in diversity Importance value Index (IVI) was calculated by adding the and a reduction in dominance (Berger & Parker, 1970) [15]. values of Relative Frequency, Relative Density and Relative Basal area. 3. Results and discussion The present study showed that both the forest are rich in tree Data processing and phytosociological analysis diversity. A total 20 tree species were recorded from All the data both spatial and especial collected from Jaisinghnagar forest. Among them highest IVI was recorded different sources has been tabulated and analyzed for Diospyros melanoxylong (62.90). IVI was also good for separately. The data collected were used to compute Dendrocalamus strictus (50.57) and Tectona grandis community indices like. (35.42). The lowest IVI was recorded for Pithecellobium dulce (1.34). IVI was also poor for Shorea robusta, a) Species diversity (H') Terminalia arjuna and Terminalia tomentosa (Table 1). Species diversity of different tree species; it was calculated From Beohari forest 22 tree species were recorded. Among using the Shannon- Weiner Index: (Shannon and Weiner, the tree species highest IVI was recorded Diospyros 1963) [9]. melasioxylon (82.71). The Dendrocalamus strictus, Tectona grandis, Madhuca indica and Shorea robusta had quite (H' ) =- Σ [ (ni / N). ln (ni / N) ] good IVI (Table 2). The lowest IVI was recorded Where ‘ni’ is the IVI of individual species and N is the total Holoptelra integrifolia (1.71). 57 International Journal of Biology Research Table 1: Different Phytosociological values of tree vegetation of Jaisinghnagar forest. S. No. Name of species Fre Density/Ha B.A. R. F. R. D. R. Dom. I.V.I. 1. Acacia nilotica 40 70 121.4 4.08 1.71 0.21 6.00 2. Aegle mermelos 10 20 49.74 1.02 0.49 1.16 2.67 3. Alangium salvifolium 10 10 402.42 1.02 0.24 0.13 1.40 4. Anogeissus latifolia 20 20 443.48 2.04 0.49 1.53 4.06 5. Azadirachta indica 30 40 81.44 3.06 0.98 0.50 4.54 6. Bauhinia racemosa 60 140 697.48 6.12 3.41 1.72 11.25 7. Boswellia serrata 60 100 3663.30 6.12 2.44 9.01 17.57 8.