scholarly journals Environmental Degradation of Satajaan Beel, Lakhimpur, Assam

2021 ◽  
Vol 9 (9) ◽  
pp. 947-954
Author(s):  
Jintu Moni Bhuyan
Keyword(s):  
Migratory Birds ◽  
Anthropogenic Activities ◽  
Flood Plain ◽  
Development Project ◽  
Administrative District ◽  
Ecological Disturbance ◽  
River Bank ◽  
Plain Area ◽  
Northern River ◽  
Physical Features

Abstract: Wetlands are most common but very important physical features present in Assam state. Lakhimpur is a administrative district situated on the northern river bank of the mighty Brahmaputra river, having a large number of wetland. Though Satajaan is a very small sized wetland situated on the flood plain area of Ranganadi River but plays a crucial role to the entire surrounding area. Climate change already become a threat to the wetland, at the same time different anthropogenic activities such as encroachment, picnic in the winter and other environmental unfriendly development project have become challenging that lead to affect in water quality and various ecological disturbance to the wetland. Satajaan is well known for hosting local as well as migratory birds, which was created by 1950’s devastating earthquake, but it is seem that the numbe of bird visiting to the wetland is decreasing past for few years. Keywords: Satajaan, Wetland of Lakhimpur, Wetland degradation.

scholarly journals Sudden Phytophthora Dieback of Wild Cherry Trees in Northwest Hungary

2016 ◽  
Vol 12 (2) ◽  
pp. 117-124
Author(s):  
Judit Sárándi-Kovács ◽  
László Nagy ◽  
Ferenc Lakatos ◽  
György Sipos
Keyword(s):  
Prunus Avium ◽  
Deciduous Forest ◽  
Flood Plain ◽  
Phytophthora Species ◽  
Soil Conditions ◽  
Wild Cherry ◽  
Plain Area ◽  
Phytophthora Spp ◽  
Mixed Deciduous Forest ◽  
Cherry Trees

Abstract During a regular survey of declining forests in 2011, sudden dieback symptoms were observed on scattered wild cherry trees (Prunus avium) in a mixed deciduous forest stand, located in the flood plain area of the Rába River, in northwest Hungary. In this study, we correlated both soil conditions and presence of Phytophthora spp. to dieback of cherry trees. Two Phytophthora species, P. polonica and P. plurivora, were isolated from the rhizosphere soil of the dying trees. By contrast, only P. polonica was recovered from the necrotic tissues of symptomatic roots. Stem and root inoculation tests on cherry seedlings showed pathogenicity of both species, although P. polonica proved to be more virulent. This is the first report of natural infections of P. polonica.

scholarly journals Effects of Riverbed Extraction on Ground Water Resources in the Vicinity of Tinau River, Rupandehi

2013 ◽  
Vol 13 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Khet R Dahal ◽  
Chandra P Poudyal ◽  
Prajwal Adhikari ◽  
Subodh Sharma ◽  
Jitendra Ghimire
Keyword(s):  
Low Income ◽  
Local Governance ◽  
Flood Plain ◽  
Dry Season ◽  
Income Generation ◽  
Plain Area ◽  
The People ◽  
Tube Wells ◽  
Medium Level ◽  
Dug Well

CORRECTION: The correct PDF for this article was loaded on 22/04/2013.The study was carried out in the vicinity of the Tinau river, Rupandehi, Nepal from July 2011 to June 2012. Ten number of shallow tube wells (STWs) of depths 5.18 m to 7.62 m, four shallow tube wells (STWs) of depths 28.96 m to 36.58 m. from Amawa and Farsatikar Village Development Committees and one dug well (DW) from Butwal Municipality were selected for the purpose of this study. The depth of the STWs was different but many STWs were of 6.09 m deep. The DW was of 18.29 m. The information was collected from the owners during field visit of the sites. A standard questionnaire was prepared and asked to the affected persons. The site observation was done in the dry season as well as in the rainy seasons. It was found that the extraction of riverbed materials from the river channel and the flood plain area has adversely affected the aquatic environment of the Tinau river. Massive extraction of the riverbed materials from this river started after the enforcement of local governance act, and regulation 1999. The income generated from the riverbed materials is quite enough. This is one of the major sources of income generation of DDC Rupandehi and the VDCs attached to this river (from Butwal to Bethari). The depth of the river increased due to extraction activities as a result groundwater table lowered. The STWs having depth of 5.18 to 7.62 m stopped discharging water from the aquifer in the dry season. Similarly DW of Butwal municipality having depth of 18.29 m stopped discharging water at dry season. But the STWs of depths from 28.96 m to 36.58 m. located at the same area/site were not affected by the extraction in the Tinau river. The people, who are residing on the bank of the river Tinau, suffered from drinking water problem because they are using the water from STWs. The effect is directly facing the people of low and medium level having low income generation. The extraction activity is going on and the deficit of water availability in STWs and DW is common in the vicinity of the Tinau river especially in the upstream (from Butwal to Paschim Amawa), whereas there is less effects of riverbed extraction for STWs of depths more than 27.43 m in the same sites. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 133-140 DOI: http://dx.doi.org/10.3126/njst.v13i2.7726

scholarly journals Identification of types of buffaloes available in Kanihari buffalo pocket of Mymensingh district

2015 ◽  
Vol 2 (1) ◽  
pp. 109-115
Author(s):  
Md Mahmodul Hasan Sohel ◽  
Md Ruhul Amin
Keyword(s):  
Coat Color ◽  
Flood Plain ◽  
Climatic Conditions ◽  
The Body ◽  
River Bank ◽  
Body Appearance ◽  
Type 3 ◽  
River Type

The buffaloes are reared by many races under diverse agro-climatic conditions of Bangladesh. The buffaloes of Bangladesh are mostly indigenous in origin. Both the swamp and river type buffaloes are found in Bangladesh and they can be found throughout the country. However, their concentration is higher in coastal part, Meghna-Ganga and Jamuna-Brahamaputra flood plain, subsequently forming buffalo pockets. This study was conducted to identify the types of buffaloes and the sources of breeding buffaloes in one of those buffalo pockets called Kanihari buffalo pocket situated in Mymenshing district. Direct interviewing method was used to collect the data from the owner of the buffaloes. According to the body shape, coat color and horn pattern, buffaloes of this region were categorized into different categories. Abundant natural green grasses in the river bank of old Brahammaputra gave this area as a shape of a buffalo pocket. This pocket does not have any distinct breed and the buffalo population is mostly mixed and exotic. Introduction of swamp germplasm occurred when buffalo cows are temporarily migrated to Bathan area of Sylhet. Morphometric characteristics (coat color, horn pattern and body appearance) of Type-1, Type-2 and Type-3 buffaloes are similar to Murrah group (Murrah and Nili- Ravi), Surti group and indigenous river type buffaloes, respectively. This is the first study which identifies and morphologically characterizes the buffalo population in Kanihari buffalo pocket; however, in depth genotypic study is required in order to identify the origin or breeds available in this area.Res. Agric., Livest. Fish.2(1): 109-115, April 2015

scholarly journals STUDY OF RIVER CHANNEL MIGRATION AND IDENTIFICATION OF POTENTIAL SUGARCANE CULTIVATION AREA IN THE MOHANA-MACHELI WATERSHED USING REMOTE SENSING

2019 ◽  
Vol IV-2/W5 ◽  
pp. 223-229
Author(s):  
D. Neupane ◽  
P. Gyawali ◽  
D. Tamang
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Change Detection ◽  
Detection Method ◽  
Bank Erosion ◽  
Flood Plain ◽  
River Channel ◽  
Channel Migration ◽  
River Bank ◽  
Flood Effects

<p><strong>Abstract.</strong> Channel migration becomes the main characteristic of major rivers of Mohana-Macheli watershed of western Nepal. Study of river channel migration of major rivers of watershed using freely available remote sensing show that the channel has shifted to as high as 1000 meters from the original river path over the span of 9 years (2009–2017). The channel migration directly affects the land use and it has direct effect on the flood plain settlements of the study area. Cultivation of sugarcane in sand area is one of the mitigating measures of flood effects and prevent river bank erosion. The study shows that the area of sand is changing disproportionately in the region. This paper presents an enhanced change detection method of river channel migration using remotely sensed images and identification of sand area using classification and interpretation technique.</p>

scholarly journals Evaluation of Annual Sediment Load Production in Kenyir Lake Reservoir, Malaysia

2018 ◽  
Vol 7 (3.14) ◽  
pp. 55
Author(s):  
Mohd Khairul Amri Kamarudin ◽  
Noorjima Abd. Wahab ◽  
Ahmad Fadhli Mamat ◽  
Hafizan Juahir ◽  
Mohd Ekhwan Toriman ◽  
...  
Keyword(s):  
Land Use ◽  
Anthropogenic Activities ◽  
Land Use Changes ◽  
Lake Management ◽  
Total Suspended Solid ◽  
River Basin Management ◽  
Suspended Solid ◽  
Anthropogenic Factors ◽  
Lake Basin ◽  
River Bank

Kenyir Lake’s natural environment experienced significant changes over the past 20 years. Pressure from anthropogenic activities such as deforestation, construction, and sand mining around Sungai Terengganu, tourism, farming and agricultural has creating imbalance between environmental processes and response in Kenyir Lake. The aim of the study is to estimate the production of sediment yield (Muatan Sedimen) (MS) (tonnes/km2/year) in Kenyir Lake Basin. 21 sampling stations were chosen along Kenyir Lake to represent the upstream and downstream. The statistical analysis proved that the correlation and regression relationship between Total Suspended Solid (TSS), MS and area of catchment. MS showed a weak correlation and insignificant relationship of regression caused by the anthropogenic factors and uncertain climate changes. These sedimentation problems due to unsustainable land use changes, river bank erosion problems and active construction activity around the Kenyir Lake Basin. This study suggests the sedimentation management methods including land use settlement, cliff erosion problems, settlement and negotiable of uncontrolled development operations in Kenyir Lake and the integrated of river and lake management methods based on Integrated River Basin Management (IRBM) in Kenyir Lake Basin is recommended.  

Environmental protection and developmental interests

2014 ◽  
Vol 6 (1/2) ◽  
pp. 69-90 ◽  
Author(s):  
Gitanjali Nain Gill
Keyword(s):  
Flood Plain ◽  
Political Support ◽  
Commercial Development ◽  
Economic Interests ◽  
River Bank ◽  
Content Type ◽  
Political Processes ◽  
History Of ◽  
The Veil ◽  
The Relationship

Purpose – The purpose of this paper is to provide a case study of a global challenge: the relationship between commercial development and the protection of eco-fragile systems particularly where river water is involved. It reviews and critiques the legal and political processes that underpinned the Commonwealth Games (CWG) 2010 in Delhi and the building of the accommodation Village on the floodplain of the river Yamuna. Design/methodology/approach – The paper covers the controversial modern history of the Yamuna river that runs through Delhi. The river is “dead” and has been subject to litigation concerning its usage and that of its flood plain. In particular, the controversy peaked prior to the CWG 2010 in Delhi and the required buildings associated with the games. The paper traces the history of the legal actions and the inter-related involvement of the various actors being the politicians, construction developers, the river bank dwellers and the local environmentalists. Close analysis is made of the statutory administrative procedures required for environmental clearance, the subsequent case law both in the High Court of Delhi and the Supreme Court of India. Additionally, usage is made of the media and its concerns over corrupt and negligent practices. Findings – The Indian judiciary in their willingness to promote the construction of the Village failed to apply its own environmental jurisprudence. There was a failure to “lift the veil” and review flawed administrative practices that violated governing statutes. National pride, time pressures, political support, economic interests and rapid urbanisation created a pressure that the courts could not challenge. It was left to investigative committees, after the Games had concluded, to expose these wrongdoings. Originality/value – The paper highlights the issue of the relationship of the courts and political and economic interests and how legally protected ecological interests are ignored.

scholarly journals The Impact of Land Use Land Cover on the Flood Plain of Bhagirathi River, Purba Bardhaman District, West Bengal, India

2019 ◽  
pp. 1-10
Author(s):  
Sourav Misra ◽  
Tuhin Roy
Keyword(s):  
Land Use ◽  
Land Cover ◽  
West Bengal ◽  
Flood Plain ◽  
Physical Parameters ◽  
Land Use Land Cover ◽  
Entire Study ◽  
Entire Area ◽  
River Bank ◽  
The Impact

Aims: Human interference is the most important factor to change the LULC pattern over the earth surface. Land cover means to the physical parameters and land use means the cultural components. The present study associated with the changes in land uses a land cover pattern for the simultaneous changes of geomorphic features as well as the changes in the course of the river. This work is mainly going to summarize the changing behavior of land use land cover areas of a river bank in several decades. Place and duration of the Study: The research area traced in between 24°00’00’’N to 23°16’15’’N and 88°12’00’’E to 88°28’00’’E, which is situated in the eastern part of Purba Bardhaman District, West Bengal. Methodology: Entire study made by GIS techniques through the uses of topographical sheet (SOI-1960, Scale 1:50,000) and Satellite data (2002, 2008 & 2016). Through the help of superimposition technique the changes of river course have been identified which is directly affecting the LULC pattern of the entire flood plain. Result: The study reveals that the entire area changes their LULC pattern which reflects the entire flood plain. Conclusion: Due to the high interference of human physical elements as well as water bodies, sand bar, fallow lands are being decreased in past decades, whereas settlement patches are continuously growing up. It means for the necessity of human livelihood human always have been modifying the land in different ways.

scholarly journals Groundwater property and composition variability under long-term irrigated area of Wonji Plain, Ethiopia

2019 ◽  
Vol 41 (1) ◽  
pp. 37-46
Author(s):  
Megersa Olumana Dinka
Keyword(s):  
Anthropogenic Activities ◽  
Flood Plain ◽  
Quality Parameters ◽  
Total Hardness ◽  
Base Exchange ◽  
Natural Processes ◽  
Major Cations ◽  
Physico Chemical ◽  
Chemical Usage

Abstract Wonji Shoa Sugar Estate (WSSE), located in the flood plain of the Awash River (Ethiopia), has been under long-term (>60 years) irrigation, industrial activities and agro-chemical usage. In this study, the hydrochemical properties of groundwater bodies available at WSSE have been characterized for quality compositions. Water samples were collected from groundwater monitoring piezometers distributed in the sugarcane plantation and then analysed for physico-chemical quality parameters (pH, EC, major cations and anions) following standard procedures. Other chemical indices (e.g., total dissolved solids (TDS), total hardness (TH), magnesium absorption ratio (MAR), base exchange (r1), meteoric genesis (r2)) were derived from the measured water quality parameters. The compositional variability and groundwater classification has been presented using the Box and Piper plots. The potential sources of minerals were suggested for each of the considered water sources based on their quality characteristics. Both trilinear Piper plot and meteoric genesis index revealed that groundwater of the area is shallow meteoric water percolation type with a changing of hydrochemical facies and mixing trend. Groundwater of the area, is group 1 (Ca-Mg-HCO3) type, with no dominant cations and HCO3 are the dominant anions. Overall, the study result elucidates that the chemical composition of GW of the area showed spatial variability depending upon the variations in hydrochemical inputs from natural processes and/or anthropogenic activities within the region. The local anthropogenic processes could be discharges from sugar factory, domestic sewage and agricultural activities.

scholarly journals Understanding public perception, knowledge and behaviour for water quality management of the river Yamuna in India

Water Policy ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 266-281 ◽  
Author(s):  
Fawzia Tarannum ◽  
Arun Kansal ◽  
Prateek Sharma
Keyword(s):  
Water Quality ◽  
River Water ◽  
Public Perception ◽  
Anthropogenic Activities ◽  
Water Quality Management ◽  
River Water Quality ◽  
Rank Test ◽  
River Bank ◽  
Sources Of Pollution ◽  
River Yamuna

Abstract The paper aims to understand how the public perceives river water quality and related risks and behaviour. Using the stratified semi-purposive sampling process, the study explores the perception of people residing along the river Yamuna in India. The method applied involved a structured questionnaire survey of 2706 respondents and four focused group discussions with people residing within two kilometres of the river bank. Non-parametric tests such as Kruskal Wallis, Mann Whitney U-test and One-Sample Wilcoxon Signed-Rank Test were used to analyse the data. The findings suggest that the majority of the respondents formulate their perceptions using non-scientific methods like sensorial and heuristics. Perception on sources of pollution is shaped by personal experiences and people do not perceive diffused sources of pollution that affect river water quality. Respondents attributed the pollution in the river to anthropogenic activities and their risk perception was found to be linked to their direct dependence on the river for their daily needs. The paper suggests behavioural change strategies to focus on social, governance, and technological drivers.

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