Asian Journal of Environment & Ecology最新文献

{"title":"Logging and Lithostratigraphic Study of the Cenomanian-Santonian Reservoirs of Four Oil Wells MSP1, MSP2, MSP3 and MSP4 of the Margin of San-Pedro (Côte d’Ivoire)","authors":"Bié Goha René, Gbangbot Jean-Michel Kouadio, Yao Eric, D. Z. Bruno","doi":"10.9734/ajee/2019/v10i130107","DOIUrl":"https://doi.org/10.9734/ajee/2019/v10i130107","url":null,"abstract":"The logging and petrophysical study of four oil wells, MSP1, MSP2, MSP3 and MSP4 from San-Pedro margin of the Ivorian sedimentary basin has made it possible to evaluate the reservoir characteristics of the Cenomanian-Santonian age formations. Lithostratigraphically, this study has shown that this interval consists of clay and sandstone deposits interspersed with frequent past carbonate. \u0000At the logging, ten (10) sandstone reservoirs are highlighted with effective porosities ranging from 16% to 21% and permeabilities from 100 mD to 1100 mD (millidarcy). \u0000These reservoirs have very good petrophysical characteristics however their high water saturation show that they are rather aquifers. The various log gamma ray profiles of the intervals considered highlight a fluvial and marine deposition environment. Sedimentation would have started in a Cenomanian-type fluvial environment and would have continued in a marine environment marked by the accumulation of sandstone and clay under the influence of transgression and regression phases in the Turonian and Lower Senonian.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127649817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Subsurface Investigation for Effective Water Resource Prospect: A Panacea to Problem of Water Supply Services in the Built Environment of the Newly Created Areas in Anambra, Nigeria","authors":"U. F. Ikechukwu, A. Onunkwo","doi":"10.9734/AJEE/2019/V10I130106","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V10I130106","url":null,"abstract":"The creation of new Local Government Areas (LGA) in Nigeria has brought about problem of water scarcity due to population increase and consequent increase in the construction of residential buildings; especially in the south east in the recent time . Ihiala LGA is a case under study. Since the creation of Ihiala local government area in Anambra State of Nigeria, there is the need for underground water resource development for effective water supply system towards sustainable housing in the area due to population increase, and development of more residential buildings. By using Vertical Electrical Sounding (VES) technique in geophysical survey of the subsurface, it was discovered that there are about six litho-logical units in the area. The subsurface litho-logy, aquifer depth and their dispositions, were probed using Abem Tetrameters 300 SAS and Geographic Information System equipments to identify the resistivity of the formations. In the area, sand stone deposit is prominent at the upper levels between 3 to 27 meters. Aquifer depth is located within 75 to 120 meters. The saturated sand stones significantly occur within the 3rd and 5th layers of the litho-logical horizons. The aquifer is mostly semi confined, and composed of sand, silty sand and sand-stone mineral aggregates. Subsurface water resources exploitation using borehole facility in the area therefore should reference these discoveries for easy and sustainable underground water resource development, to meet the people daily need for good water in the study area.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124551735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comparative Study of Discrete Dynamical System and Moving Average Model in Assessing and Predicting Availability of Clean Water","authors":"A. H. A. Razak, Dian Idayu Mohamed Ali, Rosmalina Che Yakzam, Nuratikah Amid Dudin, M. Misiran, Zahayu Md. Yusof","doi":"10.9734/AJEE/2019/V10I130105","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V10I130105","url":null,"abstract":"Many developing countries, Malaysia included, are constantly faced with problems in managing water resources as there is lack of integration and holistic approach with little participation from the general public and other stakeholders apart from the government. In this study, two quantitative models, which are the discrete dynamical system and moving average, is applied to obtain the forecast value of clean water in Malaysia’s river basin by using open source data with minimal cost of analysis. The findings suggested that moving average method is superior as it provides better accuracy in forecasting with small error rate. The method is easy to understand, used standard MS Excel in computing, and need only minimal requirement of the machine’s operating system. Continuous assessment to the quality level of clean water in Malaysia’s river basin should be strictly regulated to ensure the right course of action to manoeuvre effective countermeasure for this issue. Among the counter measures may be in a form of focused education towards specified target groups, regulatory exercises, as well as awareness campaigns that are more effectively arranged.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124594568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conservation Education, Alternative Livelihood and Habitat Restoration: The Best Strategies for Conservation of Magombera Forest Reserve","authors":"Anna Mahulu, A. Lugelo, Samuel Mtoka, K. Ngongolo","doi":"10.9734/AJEE/2019/V9I430104","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I430104","url":null,"abstract":"The Magombera forest is a home of endemic and endangered biological species such as Udzungwa red colobus monkey (Procolobus gordonorum) and the Magombera chameleon (Kinyongia magomberae). However, the forest is facing high threat of disappearing through  resources extraction pressure from adjacent local communities. The project aimed at improving conservation of Magombera forest by involving the adjacent communities through provision of conservation education, restoration initiatives and bee keeping as alternative livelihoods. The study revealed that the concept of forest conservation is well supported. Nevertheless, people are extracting resources from the forest for their subsistence. The dependence of the people on the forest is due to lack of alternatives to the forest resources, inability of the people to produce alternatives source of income and little conservation education. The project resulted in a community having a positive attitude change towards conservation. The improved bee keeping was introduced to the community and successfully adopted. About 89% of indigenous trees planted for restoring the degraded area of the forest survived, only 11% of trees planted could not survive.  There is a need to expand the scale of the project by involving many participants particularly youths that showed strong interest in the project.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122249735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Industrialisation Scenario at Sreepur of Gazipur, Bangladesh and Physico-chemical Properties of Wastewater Discharged from Industries","authors":"Md. Billal Hossain, Md. Nurul Islam, M. S. Alam, Md Zakir Hossen","doi":"10.9734/AJEE/2019/V9I430103","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I430103","url":null,"abstract":"This study was conducted to explore the present trend and pattern of industrial growth with spatial distribution of industries and seasonal extent of physicochemical characteristics of wastewater at Sreepur of Gazipur, Bangladesh. The wastewater samples were collected from 5 locations in three seasons viz. pre-monsoon, monsoon and dry season. A total of 120 medium to large industries were surveyed, among those 52 were in red category, 53 were in orange-B category, 13 were in orange-A and only 2 were in green category. In 1995, there were only three industries, which gradually increased to a total of 29 in 2005. Among them, 11 were in red category and 18 were in orange-B category. But from 2006-2010, a total 59 industries were developed and most of them were in red and orange-B categories. Similarly, during the period of 2011 to March 2013, a total 16 industries were developed, among them 8 industries were in red and 3 were in orange-B category. Major types of wastewater discharging industries were textile, dyeing, washing and printing. Among the surveyed industries about 33% didn’t have any effluent treatment plant (ETP). The mean value of pH, EC, DO, BOD, COD and TDS of wastewater were 7.28, 2.64, 1.62 mg L-1, 82.0 mg L-1, 217.31 mg L-1 and 1380 mg L-1, respectively during pre-monsoon; 6.7, 1.15, trace, 8.0 mg L-1, 152.4 mg L-1 and 539.58 mg L-1, respectively during monsoon and 7.7, 1.82, 0.74 mg L-1, 48.8 mg L-1, 204.8 mg L-1 and 993.6 mg L-1, respectively during dry season. Average DO concentrations in all seasons and sites were significantly low, while BOD and COD contents were higher in pre-monsoon and dry seasons than the DoE permissible limit. The study concluded that the area is now a hub of polluting industries which are mostly liable to pollute the surrounding environment.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123309410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variations in Total Species Richness and the Unevenness of Species Abundance Distribution between Two Distant Conus Communities (Neogastropoda): A Case Study in Mannar Gulf (India)","authors":"J. Béguinot","doi":"10.9734/AJEE/2019/V9I430102","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I430102","url":null,"abstract":"The genus Conus forms a conspicuous and rather homogeneous group within marine Gastropods. This makes it all the more interesting to focus on the sub-communities formed by Conus species and to analyze the potential specificities in the internal organization of species in these communities, in particular species richness, species abundance distribution and the effect of geographical distance between communities on differences in their respective species composition. Accordingly, two Conus communities along the coast in Mannar Gulf (India), separated by 80 km, are considered. Reliable analysis requires, first, to treat exhaustive data from complete samplings or, else – as here – to implement an appropriate extrapolation procedure to complete numerically the partial samplings. After numerical completion, substantial differences were highlighted between the two communities, not only in terms of true (total) species richness but, even more, as regards the profile and the average unevenness of the distributions of species abundance. Also, significant dissimilarity in species composition was found between the two communities, that may be tentatively attributed to either deterministic distance decay in similarity of species composition or, alternatively, to the persistence in the stochastic process of species recruitment from the regional stock of Conus planktonic larvae. This preliminary study yet requests to be complemented by other similar case studies, before drawing any safer interpretative conclusions.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122028506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Social Impact of Odor Induced by Municipal Solid Waste Treatment Facilities in Ho Chi Minh City","authors":"L. Tran, T. Murayama, Shigeo Nishikizawa","doi":"10.9734/AJEE/2019/V9I430101","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I430101","url":null,"abstract":"Landfills are mostly used to manage solid waste in Ho Chi Minh City, Vietnam. Due to inappropriate administration, there have been numerous issues over the years relating to odor and leachate. The purpose of this study is to explore the impact of odor stemming from Da Phuoc landfill site on surrounding areas. A questionnaire survey was administered through face-to-face interviews with 409 residents living in the affected areas. The findings of this study indicate that the odor perception of residents significantly influences their attitudes towards waste disposal sites. The results show that odor affects not only the region around municipal solid waste (MSW) treatment facilities but regions more than 7 km away as well. The data indicates that the odor emanating from the MSW disposal site negatively affects the daily life of many residents. This study is an effort to finding a solution to reduce the impact of odor generated from the landfill site on nearby residential areas.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological Risk Assessment of Heavy Metals in Soil of an Open Dump along Old Ikare Road Owo, Ondo State, Nigeria","authors":"J. Olayinka-Olagunju, A. M. Olatunji-Ojo, A. Adejuyigbe, H. A. Ikuesan, S. Abubakar","doi":"10.9734/AJEE/2019/V9I330099","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I330099","url":null,"abstract":"Aims: To investigate the heavy metal concentrations in soil samples collected from an open dumpsite in a rural community (Aba Idi-Mangoro) in Owo, Ondo State and to compare the observed values with the regulatory limits. This study also aimed to determine the pollution levels using tools like contamination factor, pollution load index and geoaccumulation index. \u0000Study Design: Field study design was use in this study. \u0000Place and Duration of Study: Soil samples were collected from Aba Idi-Mangoro in Owo, Ondo State, Nigeria between July 2015 and February 2016 to represent the wet and dry seasons. \u0000Methodology: A total of 96 soil samples were collected (6 samples on each visit and the site was visited twice a month). The samples were taken to the Prof. Julius Okojie Central Research Laboratory at the Federal University of Technology, Akure, Ondo State, Nigeria. In the laboratory, samples were air dried to remove the moisture. 2 g of the sampes were digested into HNO3, HCl, HF and HClO4, and AA Spectrophotometer was used to analyse the concentrations of the heavy metals. \u0000Results: Out of the 8 heavy metals assessed, 6 were above the regulatory limits. The order of heavy metal concentrations for the wet season is: Fe>Mn>Zn>Cu>Pb>Ni>Cr>Co>Cd and the dry season is as follows: Fe>Zn>Mn>Pb>Cu>Ni>Co>Cr>Cd. When the mean concentrations of the samples for the wet season were compared to the dry season, Mn (0.009), Cd (0.035), Cr (0.044) and Co (0.014) differ significantly (p<0.05). No significant difference was found in Fe, Co, Ni and Zn. It was observed from the overall results that the concentrations of heavy metals were higher during the dry season than in the wet season. The contamination factor (CF), pollution load index and geo-accumulation index values of Fe was extremely high in the two seasons while it varies at different collection times for the other metals. \u0000Conclusion: Due to the high presence of some of the heavy metals found in the soil, the study suggests that water and sediment samples from nearby river(s) within the community should also be examined.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126046854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Plant Species on the Physico-chemical Properties of Soil in Falgore Game Reserve, Kano State, Nigeria","authors":"J. Amonum, S. A. Dawaki, G. Dachung","doi":"10.9734/AJEE/2019/V9I430100","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I430100","url":null,"abstract":"This study was carried out to examine the effect of plant species on soil properties in the Falgore Game Reserve (FGR) in Kano State, Nigeria; with the aim to promote sustainable conservation and management of the game reserve and to encourage the use of multiple tree species on farmlands. Strata, systematic and random sampling techniques were employed in order to capture the variability of land cover. Composite samples of soil were randomly collected at a depth of 0-30cm from sample plots of 50 m × 50 m sizes at five points using soil auger. This experiment was replicated four times. The samples were thoroughly mixed and spread out on a dry floor to air dried under the roofed shade. The samples were packaged in polythene bags and taken to the biological science laboratory (Bayero University Kano, Nigeria) for preparation and analysis. The data collected were analyzed using descriptive statistics, ANOVA and Correlation at p< 0.05. Based on this finding, shrubs and tree species diversity were found to be inversely related to soil total Nitrogen, N, % O.C and soil pH (H2O). The nitrogen content of the soil sample was more stable compared with the carbon content across the strata in the study area. The results of this finding revealed that plants species diversity have different effects on soil properties of FGR. Thus, it is recommended that conservation and restoration of threatened plant species should be encouraged for soil amendment. For easy adoption of plant species on farmlands, farmers should be enlightened more on the effects and environmental functions of trees on farm land.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Coral-reef Complexity on Species Richness and the Hierarchical Structuration of Species Abundances in Reef fish Communities: A Case Study in South-east Brazil","authors":"J. Béguinot","doi":"10.9734/AJEE/2019/V9I330098","DOIUrl":"https://doi.org/10.9734/AJEE/2019/V9I330098","url":null,"abstract":"Growing complexity of coral habitat is expected to increase resource partitioning among co-occurring reef fish and, thereby, reduce to some extent the mean competitive intensity. This will have associated consequences on the internal structuring of species in reef fish communities, in particular regarding species richness and evenness of species abundances. Accumulating dedicated case studies are necessary, however, to get further empirical confirmations. The present analysis aims to contribute in this respect, comparing reef fish communities associated to two coral-reef settings that markedly differ in their degree of morphological complexity, at Itaipu Sound, Brazil. As the available samplings of these communities remained incomplete, numerical extrapolations were implemented, thereby providing least-bias estimates for both total species richness and the exhaustive distribution of species abundances in both compared reef fish communities. As expected, total species richness increases with greater degree of coral habitat complexity, while the unevenness of species abundances decreases. This decrease in abundance unevenness – reflecting the corresponding relaxation of the mean level of competitive intensity – is partly due to the direct, negative influence of species richness on abundance unevenness, as an overall trend.  Beyond that, however, the relaxation is further strengthened by an additional “genuine” contribution – this time independent from the variation in species richness – and, as such, directly and idiosyncratically attached to the improvement in habitat complexity.","PeriodicalId":173278,"journal":{"name":"Asian Journal of Environment & Ecology","volume":"20 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126252861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}