Browsing by Author "Omesh Bajpai"

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An annual algal diversity of Lakhna, Etawah, Uttar Pradesh, India
(Applied and Natural Science Foundation, 2019) Omesh Bajpai; Narendra Mohan; Jitendra Mohan; Rajan Kumar Gupta
The nature of an ecosystem can be easily assumed by the presence of planktonic diversity, as they have a major role in oxygen amelioration, binding and removal of toxic substances from water body. The present enumeration deals with the annual algal diversity from the Lakhna town of Etawah, Uttar Pradesh. During this one year period, total fifty-four species of Algae recorded viz. Achnanthes minutissima, Amphora ovalis, Anabaena oscillarioides, A. oryzae, Ankistrodesmus falcatus, Aphanocapsa littoralis, Aphanothece microscopica, Arthrospira sp., Calothrix gloeocola, Chlorella vulgaris, Chlorococcum humicola, Chroococcus minor, C. minutes, Cladophora glomerata, Closterium venus, Coelosphaerium kuetzingianum, Cyclotella meneghiniana, Cylindrospermum minutissi-mum, Euglena minuta, Fragilaria crotonensis, Gloeocapsa magma, Gloeotrichia pisum, Gomphonema parvulum, Hydrodictyon reticulatum, Lyngbya contorta, L. epiphytica, L. majuscula, Merismopedia glauca, M. tenuissima, Microcystis aeruginosa, M. flos-aquae, M. robusta, Mougeotia calcarea, Navicula ambigua, N. brebissonii, N. lata, Nostoc commune, N. punctiforme, Oscillatoria formosa, O. subuliformis, O. princeps, Pediastrum boryanum, Phormidium ambiguum, P. fragile, P. lucidum, Rivularia aquatica, Scenedes-mus bijuga, S. obliquus, Spirogyra affinis, S. submaxima, Spirulina gigantea, S. major, Ulothrix zonata, Zygnema collinsianum. This information can be used as baseline data and may be further used to assess any change in algal diversity of Gangetic plain after a sufficient gap to understand the impact of changing climate on it. © 2019, Applied and Natural Science Foundation. All rights reserved.
Consequences of western disturbance-triggered cooling on the flowering of tree species in the Himalayan Terai region
(Indian Academy of Sciences, 2015) Omesh Bajpai; Jitendra Pandey; Lal Babu Chaudhary
[No abstract available]
Energy crops in sustainable phytoremediation
(Elsevier Ltd, 2016) Vimal Chandra Pandey; Omesh Bajpai; Nandita Singh
Phytoremediation is a holistic approach and can be used in large scale to remediate the contaminated land resources. Although the concept of phytoremediation is few decades old and has been applied on a wide range of pollutants, but their sustainability is still questioned at various scientific forums. Therefore, it is the need of the hour to remediate our valuable resources with due considerations for future generations. Such a synergistic bonding by using potential energy crops in phytoremediation programs would be useful to generate new bioenergy resources along with the remediation of contaminated soil. There are several energy crops in the world, but four promising and dedicated energy crops i.e. Miscanthus, Ricinus, Jatropha, Populus have primarily considered in this review to accomplish energy demands with their phytoremediation potential. These four energy crops also act as potential carbon sink and offer an additional profit as carbon tax credits. In recent time we have been able to improve our understanding in phytoremediation, but use of energy plants were not considered so far to make this venture socio-economically acceptable to the society. The present review provides a strategy for linking energy crops in phytoremediation to resolve the sustainability issues and effectively solve the challenges of ever increasing contaminated sites and biofuel demands now and for future. © 2015 Elsevier Ltd. All rights reserved.
Ethnomedicinal uses of tree species by tharu tribes in the himalayan terai region of India
(Academic Journals Inc., 2016) Omesh Bajpai; Jitendra Pandey; Lal Babu Chaudhary
The present investigation aimed at documenting medicinally important species of trees used by Tharu tribe in the Himalayan Terai region of India. Out of 204 tree species belonging to 143 genera and 50 families reported in this study, uses of 148 species have been recorded from this region for the first time. Twenty nine leguminous species belonging to 16 genera are most commonly used by tribal people of the region. Eight species of Ficus are used in different diseases. About 75% of total tree species of medicinal uses have been found in wild habitat while the remaining species are cultivated. It has been noticed that bark is one of the frequently utilized plant parts by the tribe. In such diseases as diarrhoea, skin problems, dysentery, fever, ulcer, rheumatism, wounds, diabetes, respiratory and gastrointestinal problems, more than one plant species are used. Over all, more than 86 health-related issues are bing cured utilizing ethnomedicinally important tree species. It has also been observed that the majority of youth in Tharu tribe are very less aware of their ethnic knowledge and are also not so much interested in such learning. Thus, a precise documentation of these information with traditional knowledge base from the ethnic people has great relevance for the human welfare. The study suggests the need for training local people for sustainable utilization of these plant resources and their proper conservation. The youth should be encouraged learning to sustain their ethnic wisdom which would also help creating employment among local inhabitants. © 2016 Academic Journals Inc.
Key issues and management strategies for the conservation of the Himalayan Terai forests of India
(Alexandru Ioan Cuza University of Iasi, 2018) Omesh Bajpai; Venkatesh Dutta; Lal Babu Chaudhary; Jitendra Pandey
The Himalayan Terai forests are the major habitat for a variety of terrestrial biodiversity, with distinct extents of ecosystems, abundance and distribution of species and coverage of protected areas. This lowland region is mainly characterised by tall grasslands, scrub savannah, Sal forests, wetlands, and swamps. The Terai eco-region, shared by India and Nepal, is one of the prominent areas of India from a biodiversity point of view. It is situated along the foothills of the central Himalaya, in the north of the Indo-Gangetic Plain, with a forest covers of ca. 10,000 km2 in India. The Terai eco-region contains dense forests, savannahs and grasslands, providing critical habitats for many endangered large mammals, including tigers, elephants and rhinoceroses. Currently, the forest of this region is losing its biodiversity because of natural and anthropogenic factors. Because of the high agricultural productivity of the Terai areas, rising aspirations for better living conditions, development activities, industries and road & rail networks, the degradation and fragmentation of these forests have increased in recent years. This paper presents key issues and management strategies for the conservation of the Himalayan Terai forests of India, along with some suggestions to overcome the impacts of natural and anthropogenic disturbances. © 2018 Universitatea "Alexandru Ioan Cuza" din Iasi.
Periodicity of different phenophases in selected trees from Himalayan Terai of India
(Springer Netherlands, 2017) Omesh Bajpai; Jitendra Pandey; L.B. Chaudhary
The temporal phenology of leaf bud bursting, leaf initiation, leaf maturation, leaf fall, flower initiation, fruit initiation and fruit fall was recorded for eight tree species (Ficus hispida, F. squamosa, Mallotus nudiflorus, M. philippensis, Shorea robusta, Schleichera oleosa, Pongamia pinnata and Terminalia arjuna) in the tropical moist deciduous forest of Himalayan Terai region from November 2009 to October 2012. The study revealed that a short low temperature dry period, sufficient winter rain and temperature rise are the triggering factors for summer leaf flushing and, the increased soil water availability for second leaf flushing in rains. Initiation of flowering with leaf emergence in the dry period supports higher rate of fruit setting due to maximum availability and activities of pollinators. The dispersal and post dispersal success of fruits increased by their ripening before and/or in the rainy season. In T. arjuna, no correlation has been found between the fruiting and rains. M. nudiflorus and M. philippensis initiate leaves and flowers with the first significant increase in temperature and photoperiod and are thus suggested as the potential tree species for climate change studies in tropics. © 2016, Springer Science+Business Media Dordrecht.
Phytodiversity on fly ash deposits: evaluation of naturally colonized species for sustainable phytorestoration
(Springer Verlag, 2015) Vimal Chandra Pandey; Prem Prakash; Omesh Bajpai; Akhilesh Kumar; Nandita Singh
Proliferation of fly ash (FA) deposits and its toxicity have become a global concern, which contaminate the ecosystems of our Earth. In this regard, identification of potential plant species for FA deposits’ restoration is the main concern. Keeping this view in mind, the present study was conducted to identify potential plant species naturally growing on FA deposits for the restoration purposes. Six intensive surveys were made during 2010–2014 to collect naturally growing plant species during different seasons from two FA deposits in Unchahar of Raebareli district, Uttar Pradesh, India. The plant species having potential for FA deposits’ restoration were identified on the basis of their ecological importance, dominance at the study sites and socio-economic importance for rural livelihoods. Typha latifolia L., Cynodon dactylon (L.) Pers., Saccharum spontaneum L., Saccharum bengalense Retz. (syn. Saccharum munja), Prosopis juliflora (Sw.) DC., Ipomoea carnea Jacq. and Acacia nelotica L. are identified as potential plant species for FA deposits’ restoration. Furthermore, the characteristics of naturally colonized species can be used for the phytorestoration during a revegetation plan of new FA deposits for multiple benefits. © 2014, Springer-Verlag Berlin Heidelberg.
Plant regeneration potential in fly ash ecosystem
(Elsevier GmbH, 2016) Vimal Chandra Pandey; Omesh Bajpai; Nandita Singh
Ability of certain plant species to regenerate by adaptive growth can address the harsh conditions of fly ash dumps in fly ash ecosystem. In the present study, we examined the status of regeneration potential of planted tree species in three life forms at fly ash ecosystem of tropical zone. On the basis of importance value index Prosopis juliflora (Sw.) DC., Pithecellobium dulce (Roxb.) Benth. and Pongamia pinnata (L.) Pierre have been found as dominant species in fly ash ecosystem. In this regeneration status study, the above three tree species (68.91%) have been found in good regeneration category which can be used for revegetation of new fly ash dumping sites. © 2015 Elsevier GmbH.
Saccharum spontaneum: an underutilized tall grass for revegetation and restoration programs
(Kluwer Academic Publishers, 2015) Vimal Chandra Pandey; Omesh Bajpai; Deep Narayan Pandey; Nandita Singh
Saccharum spontaneum L. is a perennial tall grass and invades naturally abandoned and pastoral lands in many tropical countries. Although it is a potentially multiple-use and multifunctional species, it remains neglected and underutilized. It is commonly known as ‘Wild cane’ in English and ‘Kans’ in Hindi. In recent years, S. spontaneum has attracted serious attention for its potential in ecological restoration. The present paper deals with geographic distribution, ecology, morphological description, multiple uses, restoration potential, and propagation of this species. We also report the suitability of S. spontaneum for the restoration and stabilization of bare fly ash (FA) dumps. In this context, the highest importance value index, visual observations and practitioner insights reveal that S. spontaneum has great ability to grow on bare FA dumps and can be used as an ecological tool in restoration of vast tracts of fly ash dumps across the world. Besides grass vegetation study, we also report the change in physicochemical properties of abandoned site and compared with naturally colonized site with S. spontaneum of FA dumps to assess its ecological suitability for restoration of bare FA dump. Overall, the field results showed that S. spontaneum is a promising and potential tall grass for the restoration of FA dumps. © 2014, Springer Science+Business Media Dordrecht.
Tree Community Assemblage and Abiotic Variables in Tropical Moist Deciduous Forest of Himalayan Terai Eco-Region
(Springer, 2020) Omesh Bajpai; Venkatesh Dutta; Rachna Singh; L.B. Chaudhary; Jitendra Pandey
The Himalayan foothills in northern India form one of the distinct eco-climatic regions of the world which affect plant communities. This study aims to analyse tree community assemblage along with associated abiotic variables in the tropical moist deciduous forests of Dudhwa National Park (DNP) in the Terai region. The cluster and non-metric multidimensional scaling (nMDS) analyses grouped the forests of DNP into five major forest types: Sal miscellaneous forest (SMF), Sal-Asna miscellaneous forest (SAMF), low-land miscellaneous forest (LMF), teak plantation (TP) and eucalyptus plantation (EP). Each forest type has its specific species composition and dominance. A sum of 23 site-specific tree species have been found to grow in the study area, with the maximum 14 site-specific species from the SMF followed by LMF and TP with seven and two species, respectively. The nMDS and Pearson’s correlation reveal that the different forest communities in Dudhwa National Park are characterized by the variations in abiotic variables (i.e. total organic nitrogen, TON; electrical conductivity, EC; soil bulk density, BD; soil porosity, SP; available phosphorous, P; potassium ion, K; and water holding capacity, WHC; air temperature, AT; and absolute air humidity, AAH). The study also reported 23 site-specific species, which require proper conservation measures due to their low ecological amplitude and narrow range of distribution. © 2020, The National Academy of Sciences, India.
Tree species of the himalayan Terai region of Uttar Pradesh, India: A checklist
(Centro de Referencia em Informacao Ambiental, 2015) Omesh Bajpai; Anoop Kumar; Awadhesh Kumar Srivastava; Arun Kumar Kushwaha; Jitendra Pandey; Lal Babu Chaudhary
The study catalogues a sum of 278 tree species belonging to 185 genera and 57 families from the Terai region of Uttar Pradesh. The family Fabaceae has been found to exhibit the highest generic and species diversity with 23 genera and 44 species. The genus Ficus of Moraceae has been observed the largest with 15 species. About 50% species exhibit deciduous nature in the forest. Out of total species occurring in the region, about 63% are native to India. Almost all tree species have some importance in one and another way for the local people. In the study area about 80 species flower in the spring, 74 in the summer, 73 in the winter and 30 in rainy season. As per the existing IUCN Red List, 24 species of the area fall under different categories. Presence of these red listed trees in the study area enhances the importance of their proper management and conservation plan. © 2015, Check List and Authors.