Litterfall, decomposition and nutrient release of Shorea robusta and Tectona grandis in a sub-tropical forest of West Bengal, Eastern India

2016 ◽  
Vol 27 (5) ◽  
pp. 1055-1065 ◽  
Author(s):  
Chittaranjan Das ◽  
Naba Kumar Mondal
Keyword(s):  
Tropical Forest ◽  
West Bengal ◽  
Nutrient Release ◽  
Tectona Grandis ◽  
Eastern India ◽  
Shorea Robusta

scholarly journals Litter-Fall Production, Decomposition and Elemental (Ca, K, Mn, Fe, Zn and Co) Cycling in Deciduous Sal (Shorea Robusta) Forest in Bangladesh

2021 ◽  
Author(s):  
Razia Sultana ◽  
ASM Saifullah ◽  
Rahat Khan Khan ◽  
Mir Talas Mahammad Diganta
Keyword(s):  
Leaf Litter ◽  
Plant Species ◽  
Deciduous Forest ◽  
Pearson Correlation ◽  
Nutrient Release ◽  
Tectona Grandis ◽  
Sampling Period ◽  
Litter Production ◽  
Shorea Robusta ◽  
Terminalia Bellirica

Abstract The litters in the forest floor are the principal contributor for regulating the cycling of necessary elements, primary productivity and maintain soil fertility within the forest ecosystems. Therefore, this study was conducted in a deciduous forest of Bangladesh to ascertain the leaf-litter production and decomposition along with elemental dynamics (K, Ca, Mn, Fe, Co and Zn). Leaf-litter samples from five deciduous plant species and soil samples were collected from the Madhupur Sal Forest for about six months (July-December) in 2018. Production of leaf-litter during the dry season (December) was found in an order of Shorea robusta>Dipterocarpus indicus>Terminalia bellirica>Tectona grandis>Grewia microcos. The decomposition rates were higher for the long sampling period (90 days) followed by the intermediate (60 days)> short(30 days) sampling period. The nutrient release pattern from the leaf-litter was similar (Ca>K>Mn>Fe>Zn>Co) for all plant species except for Terminalia bellirica and Tectona grandis. The Pearson correlation coefficients showed a significant relationship between K and Fe (r=0.54; p<0.05), Ca and Co (r=0.59; p<0.01), Fe and Co (r=0.97; p<0.05) in leaf-litters. Analysis of variance (ANOVA) revealed significant variation in the litter production, decomposition and nutrient content (except Zn; p>0.05) among the different plant species (p<0.05). There revealed a significant dynamic of necessary elements from soil to trees and vice-versa.

Corticolous Lichen Species Diversity on Dominant Trees in Selected Sacred Groves of Paschim Medinipur District, West Bengal, India

2021 ◽  
Vol 63 (3-4) ◽  
pp. 447-464
Author(s):  
U. K. Sen ◽  
R. K. Bhakat
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
West Bengal ◽  
Lichen Species ◽  
Growth Forms ◽  
Sacred Groves ◽  
Community Based ◽  
Shorea Robusta ◽  
Lichen Diversity ◽  
Community Based Conservation

Sacred groves are the fairly well-protected system of community-based conservation of tree patches on account of their association with village gods, and repository of many rare and threatened elements of biodiversity. There are, however, few publications on lichens of sacred groves. The lichens have long been regarded as sensitive indicators for monitoring environmental state. The present study reports one hundred and sixteen species of lichens from forty-four genera of nineteen families in four selected sacred groves of Paschim Medinipur district, West Bengal. These lichens represent two different growth forms, i.e. crustose (105 species) and foliose (11 species). Shorea robusta, a dominant tree species in two sacred groves bears the highest lichen diversity with seventy-four species. To better understand the related biodiversity and climate, this work is likely to promote further studies on lichen diversity in other regions of West Bengal.

scholarly journals An Analysis of Reported Crime against Women and Girls in Eastern India

2021 ◽  
pp. 258-264
Author(s):  
Rituparna Paul ◽  
Arunasis Goswami ◽  
Biswajit Pal
Keyword(s):  
West Bengal ◽  
Secondary Data ◽  
Law And Order ◽  
Eastern India ◽  
Representation Of Women ◽  
The Status ◽  
Women And Girls ◽  
Reported Crime ◽  
Crimes Against Women ◽  
Status Of Women

Crimes against women and girls have been increasing in recent years as reported by the National Crime Records Bureau. It becomes a serious social evil worldwide. The study has been tried to find out the trend of crimes against women for the period of the last ten years (2010-2019) in the states of eastern India i.e. Bihar, Jharkhand, Orissa and West Bengal. The study has been based on secondary data from the National Crime Records Bureau, Govt of India. The data have been extracted and analyzed to get the status of crimes in particular categories. The crime records of Bihar show an increasing rate of women assault cases. Jharkhand data shows that indecent representation of women has increased in recent years. In West Bengal Cruelty by husband is the most reported crime in West Bengal and it is also observed that rape cases were decreased in West Bengal continuously in the last ten years. It has been found that Orissa and Bihar are significantly high in crimes like women assault on the internet, an insult to the modesty of women, kidnapping and rape comparing other states of study. Cruelty by husbands and cases under the immoral traffic act had significantly higher in West Bengal compared to other states under study. The Dowry death and kidnapping and abduction are significantly high in Bihar. The different levels of crimes against women in different states not only indicates the status of women in the society and the law and order situations of that state but also it is a reflection of the socio-psychological aspects. Proper implementation of laws along with awareness of related issues, along with continuous monitoring can play a crucial role to minimize the overall crime scenario.

scholarly journals The Vulnerable Indian Skimmer Rynchops albicollis Swainson, 1838 (Aves: Charadriiformes: Laridae) breeding in Odisha, eastern India

2017 ◽  
Vol 9 (11) ◽  
pp. 10961 ◽  
Author(s):  
Subrat Debata ◽  
Tuhinansu Kar ◽  
Kedar Kumar Swain ◽  
Himanshu Shekhar Palei
Keyword(s):  
West Bengal ◽  
Uttar Pradesh ◽  
Breeding Site ◽  
Madhya Pradesh ◽  
Eastern India ◽  
Mahanadi River ◽  
The North ◽  
The Status ◽  
Global Status ◽  
Conservation Plans

The Indian Skimmer is a globally threatened bird native to Bangladesh, India, Myanmar, Nepal, Pakistan, and Vietnam.  In India, it is more confined to the north, from Punjab through Uttar Pradesh, Madhya Pradesh to West Bengal, extending up to Odisha.  Earlier, the bird was known to breed only in Uttar Pradesh and Madhya Pradesh, we confirm here the breeding of the Indian Skimmer along the river Mahanadi near Mundali, Odisha, eastern India.  So, further monitoring at the breeding site and survey along the entire Mahanadi River are essential to understand the status of the Indian skimmer in Odisha.  The information will also aid in reassessing its global status and formulating conservation plans.

Assessment of Biomass Expansion Factor (BEF) and Root-to-shoot Ratio (R) for some Tree Species of Uttarakhand, India

2014 ◽  
Vol 37 (4) ◽  
pp. 371-377
Author(s):  
Laxmi Rawat ◽  
Pramod Kumar ◽  
Nishita Giri
Keyword(s):  
Tree Species ◽  
Tectona Grandis ◽  
Expansion Factor ◽  
Pinus Roxburghii ◽  
Biomass Expansion Factor ◽  
Shorea Robusta ◽  
Shoot Ratio ◽  
Harvesting Method ◽  
Root To Shoot Ratio ◽  
Age Series

The present study was conducted in Shorea robusta (sal), Pinus roxburghii (Chir pine), Tectona grandis (Teak) and Ailanthus excelsa (Ardu) plantations of different ages at different sites in Uttarakhand. Biomass was calculated on the basis of complete tree harvesting method (stratified mean tree technique method). Biomass Expansion Factor (BEF) and root-to-shoot ratio (R) of all these 4 tree species have been calculated and presented in this paper. Sample trees of S. robusta were of 45, 53 and 60 years of age. BEF for all these 3 age series were assessed as 1.3 at 45 years, 1.4 at 53 years and 1.2 at 60 years of age. Similarly, R values were assessed as 0.27, 0.28 and 0.26, respectively, in these 3 age series. BEF and R values assessed for T. grandis (28 years age) as 1.46 and 0.21; and for A. excelsa (39 years age) as 1.23 and 0.23, respectively. BEF for P. roxburghii trees calculated as 2.3 for 13 years age, 1.75 for 20 years, 1.71 for 22 years, 1.5 for 33 years and 1.46 for trees of 45 years of age. Similarly, R values were 0.2 for 13 years, 0.21 for 20 years, 0.12 for 22 years, 0.13 for 33 years and 0.15 for 45 years of age. P. roxburghii sample trees have shown decreasing order of BEF with increasing age, whereas S. robusta has not shown such trend along the chronosequence.

Olivea tectonae. [Distribution map].

2015 ◽  
Author(s):  
Keyword(s):  
North America ◽  
South America ◽  
Central America ◽  
Tamil Nadu ◽  
West Bengal ◽  
Tectona Grandis ◽  
Northern Territory ◽  
Distribution Map ◽  
Mato Grosso ◽  
New Distribution

Abstract A new distribution map is provided for Olivea tectonae (T.S. & K. Ramakrishnan) Mulder. Pucciniomycetes: Pucciniales: Chaconiaceae. Host: teak (Tectona grandis). Information is given on the geographical distribution in Asia (Bangladesh, China, Guangdong, Guangxi, Hainan, India, Bihar, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Nagaland, Tamil Nadu, West Bengal, Indonesia, Java, Japan, Myanmar, Pakistan, Philippines, Sri Lanka, Taiwan, Thailand and Vietnam), North America (Mexico), Central America and Caribbean (Costa Rica, Cuba and Panama), South America (Brazil, Espirito Santo, Mato Grosso, Minas Gerais and Ecuador) and Oceania (Australia, Northern Territory, Queensland and Western Australia).

Small Active Investors' Perceptions and Preferences Towards Tax Saving Mutual Fund Schemes in Eastern India

2020 ◽  
pp. 1789-1800
Author(s):  
Jitendra Kumar ◽  
Anindita Adhikary ◽  
Ajeya Jha
Keyword(s):  
Data Collection ◽  
Mutual Fund ◽  
West Bengal ◽  
Investment Decisions ◽  
Primary Data ◽  
Survey Method ◽  
Eastern India ◽  
Factors Influencing ◽  
Two Factors ◽  
State Capital

Perception and preference factor plays an important role and help the investor to understand and make the meaningful investment decisions. These two factors are highly influenced by demographic differences of an investor. The present study aims to examine the perception and preference factors influencing the investment behavior of an investor based on various demographics differences. Survey method of primary data collection techniques was adopted to collect responses of 750 respondents from Eastern India particularly (state capital or satellite towns having the population of 10,00,000) Bihar, Jharkhand, Odisha, West Bengal, Sikkim and Assam. Results of the present study suggest that significant demographics differences occur in investment perceptions and preferences towards tax saving mutual fund investments among the investors.

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