scholarly journals Plant diversity in terai grassland vegetation: a landscape level assessment with special reference to north-eastern uttar pradesh, India

2016 ◽  
Vol 8 (12) ◽  
pp. 365-381
Author(s):  
Srivastava S. ◽  
Dvivedi A. ◽  
K. Rai S. ◽  
P. Shukla R.
2016 ◽  
Vol 8 (4) ◽  
pp. 489-497
Author(s):  
Ashish DVIVEDI ◽  
Sumit SRIVASTAVA ◽  
Ravindra Prasad SHUKLA

The composition and diversity of climbers among grassland, wasteland and forest vegetations was examined with respect to their woodiness, climbing mode and circumnutation pattern across the vegetational landscape of north-eastern Uttar Pradesh during 2011-2015. A total of 111 climbers, constituting 63 lianas and 48 vine species, under 35 families, were recorded. The forest and wasteland vegetation were quite similar in regard with climber diversity. Family Convolvulaceae included a maximum of 19 climbers. Majority of twining climbers showed right-handed twining.  The wasteland vegetation was most suitable and quite similar to forest habitat for vines as well as for lianas. The right handed circumnutation was the dominant pattern among the twiners of the region. Local climbing flora provides considerable natural resource to the region. They often create special micro-habitats and increase the complexity of the ecosystem.


1970 ◽  
Vol 16 ◽  
pp. 59-63
Author(s):  
A. K. Srivastava ◽  
P. K. Mishra

Present communication deals with morpho-taxonomic descriptions of four taxa that includes two genera and four species of class Chlorophyceae. These species are Coleochaete scutata Brebisson Coleochaete soluta (Brebisson) Pringsheim, Bulbochaete nordestedtii (Wittrock) Him and Bulbochaete pseudoaerolata Bock and Bock. One of the species B. pseudoaerolata Bock and Bock is a new record for India. Key words: Fresh water, Chlorophyceae DOI: 10.3126/eco.v16i0.3474ECOPRINT 16: 59-63, 2009


2017 ◽  
Vol 6 (9) ◽  
pp. 1668
Author(s):  
Sanjay Kumar Pandey

The present study aims to compare the composition, diversity and distribution pattern of legumes vs. non- legumes in the regional sal forest of north- eastern Uttar Pradesh, India. In order to show pattern of change in different phytosociological data, the species of similar habits were sorted into different habit groups. In addition to usual regeneration through seeds, a number of legumes also showed non- seed regeneration strategy. As many as 57% of the total legume individuals were of ramet origin but belonged only to 5% of the legumes of forest. The presence of legumes with 41 species (out of 246 in regional forest) sharing 17.7% of importance value (IVI) in sal forest was noticeable. About one third total individuals in forest were herbaceous. Mean density for legume trees was >6 per ha while it was > 6000 per ha for legume shrubs. Moghania chappar, M. lineata, M. bracteata and Desmodium gangeticum were most abundant legume shrubs in regional sal forest. The general rank- abundance curve for regional sal forests was quite steep and close to log normal curve. The legume diversity is crucial for nutritional status of forest soil and legumes are known to heal the disturbed forest. Besides information on the present status of common leguminous vs. non- leguminous species, the results provide clues for the management option in these forests and for the maintenance of legume diversity in such stochastic environment.


1970 ◽  
Vol 11 (1) ◽  
Author(s):  
P. K. Misra ◽  
A. K. Srivastava

Present communication deals with 9 taxa of order Zygnematales (Conjugales by Fritsch 1935, Zygnemales by Randhawa 1959) of class Chlorophyceae. Genera Mougeotia Ag. and Zygnema Ag. each with 2 species while Spirogyra Link with 5 species are well flourishing along with other group of algae in different localities of North-Eastern, U.P. Morpho-taxonomic descriptions of species like Mougeotia sphaerocarpa Wolle, Mougeotia sp., Spirogyra bichromatophora (Randhawa) Transeau, S. biformis Jao, S. parvula (Trans) Czurda, S. hymerae Britton and Smith, Spirogyra sp., Zygnema insigne (Hassall) Kuetz and Z. vaucherii Ag. are mainly based on length and breadth of vegetative filaments, chloroplast shape, number, direction of turning, conjugation type, shape, size and position of zygospore. Two taxa, Spirogyra sp. and Mougeotia sp. have been described under open nomenclature system as the fertile parts are not preserved. These algae have been collected from various aquatic habitats of Bahraich and Gonda district of North-Eastern U.P., constitute new record for the area. Key words: Freshwater, chlorophyceae, zygnematalean algae, U.P. Ecoprint Vol.11(1) 2004.


1996 ◽  
Vol 100 (11) ◽  
pp. 1333-1336 ◽  
Author(s):  
Kirti Bhalla ◽  
Neeraj Srivastava ◽  
Kamal

2021 ◽  
Vol 66 (3) ◽  
Author(s):  
Ekta Pandey

Attempts are made in this paper to investigate the trend of pulses in Eastern Uttar Pradesh, as well as their instability and non-linear model. This time series data on pulses pertains to the period 1980-1981 to 2014-15 and includes information on the area, production, and productivity of pulses. Pulses have had negative growth in terms of area, production, and productivity in all three zones of Eastern Uttar Pradesh, namely, the North Eastern plain zone, the Eastern plain zone, and the Vindhyan zone. Since 1980-81, there has been a rise in the area and output of pulses in the Vindhyan zone, as seen by the percentage change. The Eastern plain zone has the most stable pulse crop in terms of instability


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