Distribution of soil types, vegetation and tree species diversity in Eastern Ghats of Srikakulam District, Andhra Pradesh, India

Abstract

The present investigation was carried out on distribution of soil types, vegetation and tree species diversity in Eastern Ghats of Srikakulam District, Andhra Pradesh, India. The inventory of tree species was done in 40 different forest areas of Srikakulam district. All the sample plots are tropical and moist thorny forest and dry thorny scrub forests of Srikakulam district. The soils of the study area are compressed red soils, loamy soils, sandy loams, with varying proportions of sand and clay and it constitute 96% of the total area; red sandy soil is the common type. Tree species richness varied according to the disturbance gradient in the different stands, a total of 4744 individuals, belonging to 129 species, 96 genera among 46 families from 40 line transects were recorded in the study area. Species richness ranging from 47 to 9 in a transect was recorded in the present study. Highest species richness of sizes 47 for 65-N/14 (SW-3, 65N-14 NW-3) was seen at Haddubanghi and lowest diversity 9 was seen at Korasanda 74-B/1(SE-1).

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“…The species richness diversity were low when comparing with earlier studies such as floristic diversity of Gani Reserved forest of Kurnool district of Andhra Pradesh (Khaleel Bhasha and Niaj, 2013) [12] and vegetation composition, tree species diversity from tropical forests of eastern ghats of Vizianagarm (Srinivasa et al 2014) [13] . Tree species richness varied according to the disturbance gradients in the different strands (Srinivasa et al 2014) [14] . The Tree species diversity observed in tropical forest areas of Srikakulam district (Srinivasa et al 2013) [15] .…”

Phytosociological and floristic evaluation of Kuldiha Wildlife Sanctuary, Odisha, India

“…It provides useful basic data for ecology, geography, landscape science, conservation and environmental science because the data represent integrated units in vegetation systems (Fujiwara 1987). Intensive studies concerning the phytosociology of the tropical forests of India and also other parts of the world (Timilsina et al 2007, Wahab et al 2008, Tripathi & Singh 2009, Slimani et al 2010, Tel et al 2010, Badshah et al 2010, Bhat et al 2011, Hegde et al 2011, Dangwal et al 2012, Verma et al 2013, Ahmed & Sharma 2014, Jehad et al 2014, Srinivasa et al 2014, Pradhan & Rahman 2015, Knight 2015, Sundarapandian & Subbiah 2015, Shahid & Joshi 2016, Bajpai et al 2017, Iyagin & Adekunle 2017, Masens et al 2017, Shiferaw et al 2018) have been highlighted. A perusal of literature reveals that phytosociological studies in different parts of Odisha are well studied (Sahu et al 2007, Ekka & Behera 2011, Behura et al 2015, Nayak et al 2016, Paul 2017.…”