scholarly journals Study of Micromycoflora and Fungal Diversity Analysis and Comparison among Three Different Ecosystems (Agricultural Land, Barren and Garden Land) of Khardah Municipality, 24 Parganas (N), West Bengal, India

2017 ◽  
Vol 6 (9) ◽  
pp. 710-719
Author(s):  
Swapan Kumar Ghosh P.K. Sur
Keyword(s):  
Fungal Diversity ◽  
Agricultural Land ◽  
West Bengal ◽  
Diversity Analysis

scholarly journals Degraded lateritic soils cape and land uses in Birbhum district, West Bengal, India

2011 ◽  
Vol 23 (3) ◽  
pp. 545-558 ◽  
Author(s):  
V. C. Jha ◽  
S. Kapat
Keyword(s):  
Agricultural Land ◽  
West Bengal ◽  
Lateritic Soil ◽  
Landscape Conservation ◽  
Land Uses ◽  
Key Factors ◽  
Birbhum District ◽  
Conservation Actions ◽  
Physical And Chemical ◽  
Radical Conversion

Degradation of lateritic environment as found in the south western and eastern Birbhum district can be considered as irresistible. Inherently poor physical and chemical status of existing lateritic soil profile and radical conversion of land uses as observed at cadastral level are the key factors of land degradation. Lateritic soilscapes are mostly affected by water erosion induced, vegetal and anthropogenic degradation attaining severe and very severe degradation status. Degraded lands in sample mouzas like Ballabhpur, Shyambati, Chawpahari Jungle, Bodakuri and Pachami account for 60.33%, 71.42%, 72.99%, 87.31% and 79.66% respectively out of their total lateritic exposures. In other words about 36.98%, 71.42%, 61.73%, 56.70% and 76.02% out of their total village areas and mostly non agricultural land use are affected by it. Four degraded villages get the higher priority for friendly landscape conservation actions.

scholarly journals Fungal Diversity in Intertidal Mudflats and Abandoned Solar Salterns as a Source for Biological Resources

Marine Drugs ◽  
2019 ◽  
Vol 17 (11) ◽  
pp. 601 ◽  
Author(s):  
Heo ◽  
Lee ◽  
Kim ◽  
Kwon ◽  
Park ◽  
...  
Keyword(s):  
Hot Spots ◽  
Fungal Diversity ◽  
Novel Species ◽  
Community Analysis ◽  
The Yellow Sea ◽  
Diversity Analysis ◽  
Tyrosinase Inhibition ◽  
Intertidal Zones ◽  
Cladosporium Sphaerospermum ◽  
Natural Restoration

Intertidal zones are unique environments that are known to be ecological hot spots. In this study, sediments were collected from mudflats and decommissioned salterns on three islands in the Yellow Sea of South Korea. The diversity analysis targeted both isolates and unculturable fungi via Illumina sequencing, and the natural recovery of the abandoned salterns was assessed. The phylogeny and bioactivities of the fungal isolates were investigated. The community analysis showed that the abandoned saltern in Yongyudo has not recovered to a mudflat, while the other salterns have almost recovered. The results suggested that a period of more than 35 years may be required to return abandoned salterns to mudflats via natural restoration. Gigasporales sp. and Umbelopsis sp. were selected as the indicators of mudflats. Among the 53 isolates, 18 appeared to be candidate novel species, and 28 exhibited bioactivity. Phoma sp., Cladosporium sphaerospermum, Penicillium sp. and Pseudeurotium bakeri, and Aspergillus urmiensis showed antioxidant, tyrosinase inhibition, antifungal, and quorum-sensing inhibition activities, respectively, which has not been reported previously. This study provides reliable fungal diversity information for mudflats and abandoned salterns and shows that they are highly valuable for bioprospecting not only for novel microorganisms but also for novel bioactive compounds.

scholarly journals Effect of Multiple Adjoining Habitats on Avifaunal Diversity in an Agriculture-Based Wetland Adjacent to the Hooghly River, West Bengal, India

The Ring ◽  
2018 ◽  
Vol 40 (1) ◽  
pp. 59-83
Author(s):  
Manojit Sau ◽  
Mainak Chakraborty ◽  
Riya Das ◽  
Supratim Mukherjee
Keyword(s):  
Agricultural Land ◽  
West Bengal ◽  
Secondary Forest ◽  
Hierarchical Cluster ◽  
Agricultural Field ◽  
Forest Patches ◽  
Species Dominance ◽  
Open Forest ◽  
Species Rarity ◽  
Foraging Guild

Abstract Sau M., Chakraborty M., Das R. and Mukherjee S. 2018. Effect of multiple adjoining habitats on avifaunal diversity in an agriculture based-wetland adjacent to the Hooghly River, West Bengal, India. Ring 40: 59-92. This study was conducted on four plots having a cluster of different combinations of forest, wetland, and agricultural land, as well as a single marshland habitat near the river Hooghly. We obtained 17,817 counts for 150 species in 32 days of year-round sampling. The wetland-agricultural land associated with forest had the highest species diversity (132 species, Shannon ̄H – 1.63), heterogeneity (Shannon J’ – 0.773), and number of unique species (33 species), and the lowest dominance (Simpson Index 1/D – 39.35), in contrast with the marsh, which had the lowest diversity (41 species, Shannon ̄H – 1.39), highest homogeneity (Shannon J’ – 0.863), and a lack of uniqueness. The plot with secondary forest patches between an agricultural field and human settlements showed the highest species dominance (Simpsons Diversity 1/D – 17.465). Species rarity ranged from 68.2% to 77.6% within the area under study. There were 25 species common to all plots, which formed six distinct groups based on their abundance. Carnivores were found to be the dominant foraging guild throughout the habitats. Thirty-two per cent of the species are migratory, with the families Scolopacidae and Motacillidae predominating. The Jaccard and Sorensen indices reveal the greatest species similarity between the wetlandpisciculture plot and the marshland. These indices together with the hierarchical cluster analysis indicate the uniqueness of the plot of open forest habitat adjoining the wetland, which offers the best living conditions for migratory species. Our study concludes that when a wetland is surrounded by agriculture rather than fisheries, avifaunal diversity increases, whereas forest-associated wetland-farmland maximizes species richness with minimum dominance and hence imparts greater stability to the overall community structure.

scholarly journals Commuting patterns of workers in a village of Barddhaman district, West Bengal

2015 ◽  
Vol 3 (1) ◽  
pp. 48
Author(s):  
Bhaswati Mondal
Keyword(s):  
Rural Areas ◽  
Agricultural Land ◽  
West Bengal ◽  
Primary Data ◽  
Farm Income ◽  
Farm Work ◽  
Rural Workers ◽  
Movement Distance ◽  
Commuting Patterns ◽  
The Village

Commuting helps to keep balance between residence and workplace of workers. With growing accessibility and connectivity, the importance of commuting is increasing all over the world. It is becoming a major substitute to migration. In commute-studies, commute-pattern is an important chapter. It highlights commuters’ directions of movement, distance they cover, modes of transport they use, the time they take to commute, etc. Unlike the urban-based commute pattern, commute pattern in rural areas are relatively an under-researched issue. In fact, traditionally rural people are thought to carry a sedentary lifestyle. Using primary data, this study aims to explore the commute patterns of rural workers located in the village of Gandharbapur of Barddhaman district of West Bengal, India. All the commuters were found to be engaged in non-farm work. Commuters stem from two major groups. One group of commuters is accumulated farm-income induced. They possess sufficient agricultural land. Investing their surplus farm-income, they have established non-farm works. The second group of commuters is poverty-driven. They are landless poor or are marginal farmers and to escape poverty, they have slipped into these works. Located beyond the suburban area (Memari being the nearest town), most commuters commute to nearby rural areas. Due to non-availability of public transport, women commute less than men do. Regular-paid government employees commute longer than other workers commute. The article concludes with a summary of findings and recommendations for further research.

scholarly journals Characterization and Classification of Different Rice Growing Soils with Special Emphasis on Soil Organic Carbon Stock in Rajnagar Block of Birbhum District, West Bengal

Agropedology ◽  
2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Shreyasi Gupta Choudhury ◽  
◽  
Tapati Banerjee ◽  
Krishnendu Das ◽  
A.K. Sahoo ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Land Use Planning ◽  
Agricultural Land ◽  
West Bengal ◽  
Valley Fill ◽  
Birbhum District ◽  
Soc Stock

Characterization and classification of rice growing soils of rainfed region of West Bengal is having an utmost importance for developing optimal agricultural land use planning. In the context of ever increasing food demand under dwindling agricultural land availability, rainfed areas have got the attention for enhancing food grain production for the national food basket. Hence, in the present study, we made an effort to characterize six rice growing soils placed in six different landform situations (plateau top, dissected plateau, plateau fringe, undulating upland, alluvial plains and valley fill) and classify accordingly for resource inventory of Rajnagar block, Birbhum district, West Bengal. Results depicted that, rice is grown mainly in Alfisols and Inceptisols in this block with varying morphological and physico-chemical characteristics. The soils are moderately deep to very deep with sandy loam to clay loam surface texture. Soils of plateau top, dissected plateau, plateau fringe, undulating upland, alluvial plains and valley fill were classified as Typic Haplustalfs, Aeric Endoaqualfs, Typic Haplustalfs, Typic Haplustepts, Aeric Endoaquepts, Typic Haplustalfs, respectively. The double crop rice ecology (rice-mustard) showed significantly (P=0.05) higher surface soil organic carbon (SOC) stock in surface as compared to the other monocrop rice ecologies. Among all the landforms compared, soils of valley fill region had the highest surface SOC stock (14.5 Mg ha-1) followed by plains (10.4 Mg ha-1), plateau fringe (7.7 Mg ha-1), plateau top (8.1 Mg ha-1), dissected plateau (7.2 Mg ha-1) and upland (6.9 Mg ha-1). Significantly (P=0.05) higher total profile SOC stock suggested a better soil health in valley fill and plains as compared to other areas that enhances our understanding about the need of the implementation of carbon management based land use planning for higher future productivity of these soils under environmental sustenance.

Effect of arsenic-contaminated irrigation water on agricultural land soil and plants in West Bengal, India

Chemosphere ◽  
2005 ◽  
Vol 58 (6) ◽  
pp. 799-810 ◽  
Author(s):  
Tarit Roychowdhury ◽  
Hiroshi Tokunaga ◽  
Tadashi Uchino ◽  
Masanori Ando
Keyword(s):  
Irrigation Water ◽  
Agricultural Land ◽  
West Bengal ◽  
Contaminated Irrigation Water

scholarly journals Seasonal Migration as a Livelihood Strategy of Women Agricultural Labourers in Soul Ponamara Mouza of Hirbandh Block, Bankura District, West Bengal

2020 ◽  
Vol 8 (3) ◽  
pp. 71-85
Author(s):  
Debmita Nandi ◽  
Sumana Sarkar
Keyword(s):  
Agricultural Land ◽  
Census Data ◽  
West Bengal ◽  
Group Discussion ◽  
Seasonal Migration ◽  
Sample Survey ◽  
Primary Data ◽  
Livelihood Strategy ◽  
Micro Level ◽  
Agricultural Labourers

Seasonal migration is a common livelihood strategy among marginal and landless people of the western part of West Bengal. The National Sample Survey Organisation (NSSO) and Census data have failed to provide information on seasonal migration and livelihoods at the micro-level. The present study focuses on the nature, characteristics and factors of seasonal migration with its importance as a livelihood strategy among women agricultural labourers (WALs) in Soul Ponamara mouza of Hirbandh block at the micro-level. The study is based on primary data collection using a purposive sampling method and a semi-structured questionnaire, personal interview and focus group discussion. This study reveals that seasonal migration from Soul Ponamara to the adjacent agriculturally prosperous districts viz. Purba Bardhaman and Hooghly (4 to 6 times in a year) is a common livelihood strategy among WALs in the study area, and its proportion is almost equal to when compared to male migrants. The small size of agricultural land holding, existing monoculture system, lack of irrigation facilities, a limited job opportunity in the Soul Ponamara mouza and its surrounding area (Amjhuri, Bijardihi, Chaka Doba, Moshiara, Bamni and Rangametia) provoke women labourers to move out in searching of works. In contrast, high wage and massive demand for skilled and semi-skilled agricultural labourers during sowing and harvesting season in the destination area, that is, paddy and potato fields of Purba Bardhaman and Hooghly districts acted as a magnet to absorb these immigrants into the workforce. This study concludes that seasonal migration opted for employment and income generation is the primary livelihood strategy adopted by the rural WALs of this mouza to cope up with the existing poverty and food insecurity.

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