The Impact of a Fishing Harbour under Construction on the Distribution and Zonation of the Flora and the Molluscan Fauna of a Tropical Mangrove Ecosystem

1984 ◽  
Vol 16 (3-4) ◽  
pp. 425-431
Author(s):  
A V S Rambabu ◽  
B V Prasad ◽  
D Lakshmana Reddy ◽  
P N Rao ◽  
M Balaparameswara Rao

The region concerned is Nizampatnam (15° 54ꞌN; 80° 43ꞌE), a major fishing village in the Krishna estuarine region, located at about 35 km south of Krishna River confluence in South India. This region is traversed by a number of canals (some are from river Krishna) and drains which open into the Bay of Bengal, and is characterized by the presence of swampy ground with dense to scattered mangroves. The coastal engineering project now under construction (for the last 3 years) at this region, is a Pishing Harbour. The present paper deals with the changes in the distribution, density and zonation of the flora and the molluscan fauna before and during the construction of this engineering project.

2019 ◽  
Vol 5 ◽  
pp. 104
Author(s):  
Suhendra Purnawan ◽  
Subari Yanto ◽  
Ernawati S.Kaseng

This study aims to describe the profile of vegetation diversity in the mangrove ecosystem in Tamuku Village, Bone-Bone-Bone District, North Luwu Regency. This research is a qualitative research using survey methods. The data collection technique uses the Quadrant Line Transect Survey technique. The data analysis technique uses the thinking flow which is divided into three stages, namely describing phenomena, classifying them, and seeing how the concepts that emerge are related to each other. The results of this study are the profile of mangrove vegetation in Tamuku Village, which is still found 16 varieties of true mangrove vegetation and 7 varieties of mangrove vegetation joined in the coastal area of Tamuku Village, Bone-Bone District, North Luwu Regency, South Sulawesi. The condition of mangrove vegetation in Tamuku Village is currently very worrying due to human activities that cause damage such as the project of normalization of flow, opening of new farms, disposal of garbage, water pollution due to chemicals, and exploitation of mangrove forests for living needs. The impact is ecosystem damage and reduced vegetation area as a place to grow and develop mangroves.


2020 ◽  
Vol 12 (2) ◽  
pp. 220 ◽  
Author(s):  
Han Xiao ◽  
Fenzhen Su ◽  
Dongjie Fu ◽  
Qi Wang ◽  
Chong Huang

Long time-series monitoring of mangroves to marine erosion in the Bay of Bangkok, using Landsat data from 1987 to 2017, shows responses including landward retreat and seaward extension. Quantitative assessment of these responses with respect to spatial distribution and vegetation growth shows differing relationships depending on mangrove growth stage. Using transects perpendicular to the shoreline, we calculated the cross-shore mangrove extent (width) to represent spatial distribution, and the normalized difference vegetation index (NDVI) was used to represent vegetation growth. Correlations were then compared between mangrove seaside changes and the two parameters—mangrove width and NDVI—at yearly and 10-year scales. Both spatial distribution and vegetation growth display positive impacts on mangrove ecosystem stability: At early growth stages, mangrove stability is positively related to spatial distribution, whereas at mature growth the impact of vegetation growth is greater. Thus, we conclude that at early growth stages, planting width and area are more critical for stability, whereas for mature mangroves, management activities should focus on sustaining vegetation health and density. This study provides new rapid insights into monitoring and managing mangroves, based on analyses of parameters from historical satellite-derived information, which succinctly capture the net effect of complex environmental and human disturbances.


2013 ◽  
Vol 834-836 ◽  
pp. 2045-2048
Author(s):  
Xiao Ning Qu

The Environmental performance auditing is one professional audit that auditing the environmental performance of engineering project. We construct a multi-level auditing network in the whole process of project. That network can be divided into government audit, social audit and internal audit. And with which we predict, evaluate and control the impact on environmental effectively.


Author(s):  
G. Sanjana ◽  
Vijaya Raghavan

Background: Loneliness can affect anyone at any point in their life. It can be detrimental to the wellbeing and quality of life of individuals and communities. In the ongoing COVID-19 pandemic, loneliness is considered as a public health crisis. Hence, the objectives of the study were to estimate the prevalence of loneliness and family related factors associated with loneliness among general population in south India. Materials and Methods: The study employed a crosssectional online survey design. The data was collected in the first phase of the lockdown in 2020 from adults in Southern India. Socio-demographic profile and family related variables were collected using a semistructured proforma. Loneliness was assessed by UCLA loneliness scale. Results: Of 573 total respondents to the survey, aged between 18-65 years, 43% were male and 57% were female. The overall prevalence of loneliness was 63% (358/573). No significant gender differences were observed in the prevalence of loneliness. Family discord was associated with higher rates of loneliness (p less than 0.01). Other factors associated were younger age and being single. Conclusion: Rates of loneliness during the COVID-19 lockdown were high in Southern India. Findings suggest that interventions should prioritize younger people. Increasing social support and improving interpersonal skills, which in turn would help reduce family discord and may reduce the impact of COVID-19 on loneliness.


2018 ◽  
Vol 33 ◽  
pp. 02067 ◽  
Author(s):  
Olga I. Poddaeva ◽  
Anastasia N. Fedosova ◽  
Pavel S. Churin ◽  
Julia S. Gribach

The design of buildings with a height of more than 100 meters is accompanied by strict control in determining the external loads and the subsequent calculation of building structures, which is due to the uniqueness of these facilities. An important factor, the impact of which must be carefully studied at the stage of development of project documentation, is the wind. This work is devoted to the problem of studying the wind impact on buildings above 100 meters. In the article the technique of carrying out of experimental researches of wind influence on high-rise buildings and constructions, developed in the Educational-research-and-production laboratory on aerodynamic and aeroacoustic tests of building designs of NRU MGSU is presented. The publication contains a description of the main stages of the implementation of wind tunnel tests. The article presents the approbation of the methodology, based on the presented algorithm, on the example of a high-rise building under construction. This paper reflects the key requirements that are established at different stages of performing wind impact studies, as well as the results obtained, including the average values of the aerodynamic pressure coefficients, total forces and aerodynamic drag coefficients. Based on the results of the work, conclusions are presented.


2021 ◽  
pp. 13-16
Author(s):  
Afthab Jameela Wahab ◽  
Pavithra Gunasekaran ◽  
P. Mohan ◽  
V. Sudha ◽  
L. Balamurugan ◽  
...  

Background - The cutaneous manifestations of the novel coronavirus have been well documented. However, there are few studies that relate to the clinical prole of regular dermatology outpatients seeking treatment during the lockdown relaxation period braving the pandemic. With the Aim - view to determine the changes seen in dermatology outpatient practice, this study analysed the clinical prole of new patients attending the Dermatology Outpatient Department (OPD) during the COVID-19 lockdown relaxation period in a tertiary care centre in a metropolitan suburb in South India. New dermatology outpatients during the months of May, June, July and August Method - 2020 were included in the study. Outpatient data for this period was analysed and compared with corresponding data for the same period in the previous two years. There was a Result – decrease in the OP census, number of patients in the extremes of life as well as those with asymptomatic dermatoses. There was an increase in the number of patients with infections, particularly dermatophytosis. There was also a noteworthy absence of dermatological emergencies. Conclusion - In essence, our study shows the impact of COVID-19 pandemic on the routine dermatology outpatient services with signicant changes in the clinical prole of outpatient practice following lockdown relaxation.


2018 ◽  
Vol 179 ◽  
pp. 03007
Author(s):  
Jinling Wang ◽  
Guangwen Jiang ◽  
Jun Shen ◽  
Chujun Hu

The sharp 90°corner of bow found on American Tarawa class general amphibious assault ship LHA-1 will produce large separated region in the airwake over the ship, and the turbulence in the separation region seriously affects the operation safety of the helicopter. In order to reduce the separation in bow region of the LHA-1, and optimize the helicopter operating environment, the numerical simulation method is used to study the influence of the bow flap on the airwake of LHA-1. The study results show that: the ANSYS k-ε two equation model based on the hybrid grid can be used to predict the steady-state characteristics of the ship airwake; the bow flap can improve the flow field downwind of the flap installation position, and the impact range can cover two spots; in headwind, the optimal installation angle of the bow flap is 15°~25°. The research results of this paper can provide modification and improvement reference for the amphibious assault ship in-service and under construction, so as to achieve the purpose of optimizing the ship airwake, thereby improving the safety of helicopter landing process and extending the service life.


Sign in / Sign up

Export Citation Format

Share Document