Journal of Ecology & Natural Resources最新文献

{"title":"The Phreatic Aquifer In The Coastal Dunes Of Southwestern Buenos Aires Province, Argentina. Factors Conditioning Groundwater Quality","authors":"Andres G Ruffo","doi":"10.23880/jenr-16000260","DOIUrl":"https://doi.org/10.23880/jenr-16000260","url":null,"abstract":"In the southwest of the province of Buenos Aires, a chain of coastal dunes contains a phreatic aquifer, which is the only source of drinking water in most of the seaside cities. The objective of this study is to analyze the geological, hydrogeological and anthropic activities that affect the quality of groundwater for human consumption, between the cities of Monte Hermoso and Punta Alta. Methodologically, the research is developed based on the study of antecedent information, field recognition, well census, cutting analysis, interpretation of electrical tomography and hydrochemical data. The results relate the quality of the groundwater with the lithological and stratigraphic characteristics of the area, recognizing the natural presence of trace elements such as F, As, Fe and Mn as well as undesirable organoleptic characteristics (smell, color and taste). In addition, the occupation of the land with potentially contaminating anthropic actions (cesspool or absorbent wells, farmyards, open-air dumps, etc.) is observed. This research aims to contribute to hydrogeological knowledge, providing the conceptual basis for the exploitation and management of the aquifer, in an area where water supply is entirely based on the groundwater resource.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116252654","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":"Impact of Rainfall Variability on Maize Production in the NDOP Plain, North West Region of Cameroon (1990-2015)","authors":"Suiven John Paul Tume","doi":"10.23880/jenr-16000265","DOIUrl":"https://doi.org/10.23880/jenr-16000265","url":null,"abstract":"This study assesses the impact of rainfall patterns from 1990-2015 on maize production in the NDOP Plain of the Bamenda Highlands of Cameroon since maize is a staple food and cash crop in the area. Data on rainfall and maize output were collected from 1990 to 2015 and represented in time series. The rainfall data were further analysed using Rainfall Anomaly Index (RAI), to establish critical periods of rainfall deficiencies. Results indicate that rainfall and maize production trends were increasing from 146.94 mm/month in 1990 to 220.03 mm/month in 2015 and ~0.28 tons/ha in 1990 to ~4.2 tons/ha in 2015 respectively. With uncertainties on the future of the rainfall pattern, the coefficient of variation was 22.03% (unreliable), and farmers should build resilience through agroecology, climate-smart agriculture, conservation agriculture and diversification of production systems.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127603406","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":"Pilot Review Study on Yield Gaps and Cost Benefits of Different Sized Seeds of Bread Wheat (Triticum aestivum L.) Varieties","authors":"Anbessie Debebe Aboye","doi":"10.23880/jenr-16000264","DOIUrl":"https://doi.org/10.23880/jenr-16000264","url":null,"abstract":"The main goal of this systematic pilot study is to determine the best plant population rate of bread wheat crop by identifying the most cost-effective varieties depending on their seed size in order to deliver an overview of some other bread wheat production management requirements in general and specifically in Ethiopia, comparing with current research trends as well as to make the appropriate seed rate recommendations for small, medium and large sized seeds reliant varieties, for better yield efficiency, grain quality and cost-effective benefits of bread wheat crop. This paper studied the proper application of the optimum plant-population’s reliant seeding rate under ideal environment availability of which may help in improving the yield capacity gaps by identifying the most cost-effective variety from so far conducted seed rate experiments depending on their seed size of bread wheat varieties. To optimize the plant-population’s dependent seed rate of wheat, some experiments have conducted so far across most wheat growing areas of Ethiopia. The field experiments were conducted in different times at Kulumsa Agricultural Research Center from July to November 2012. Quite similar field experiment was also conducted at Kulumsa Agricultural Research Center from June to 2018 cropping season, Three bread wheat varieties (Hidassie, Dendea and Shorima) representing different seed sizes of large, medium, small, respectively and four plant population levels of 250, 300, 350 & 400 plants m-2 were tested. The interaction effects of varieties seed size and plant population on grain yield showed statistically significant (p<0.01) variation, likewise biomass yield and straw yield indicated significant (p<0.05) variations. The grain yield resulted in (4.309 Ton ha-1), similarly biomass yield and straw yield are (11.00 Ton ha-1) and (5.28 Ton ha-1) respectively, and it suggests that these traits are generally enhanced by the genetic makeups of the variety Hidassie /large seed size. Economic analysis using partial budget procedure was performed on grain yields to determine the treatment with most profitable returns. The beneficial marginal rate of return (8.50) and benefit cost ratio (8.07) was obtained from the variety Hidassie/large seed size at a plant population of 300 seeds m-2 followed by a marginal rate of return (9.55) and benefit cost ratio (8.05) were also recorded again from the variety Hidassie/large seed size at plant population of 250 plants m-2. So the most cost-effective variety and plant population level for farmers with low cost of production and higher benefits were identified to be the variety Hidassie/large seed size at the plant population level of 300 plants m-2 in the rain fed cropping season is identified as low cost of production with highest benefit and can be recommended for the producers of bread wheat crop. The plant-population level of 250 plants m-2 for variety Hidassie/large seed size was also cost-effective with highest netbenefit","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126228248","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":"The Results of Observation of Precipitated Water on Suffa Plateau in the Period 2015-2020","authors":"","doi":"10.23880/jenr-16000326","DOIUrl":"https://doi.org/10.23880/jenr-16000326","url":null,"abstract":"The results of measurements of the amount of precipitated water at the Radio Astronomy Observatory RT-70 on the Suffa Plateau (Uzbekistan, λ=65°26, ϕ=39°37, h=2500 m) are presented. Observations were carried out automatically every 11 minutes during the year, starting from January 2015. Seasonal variations of the amount of precipitated water in the atmosphere are considered, and statistical diagrams are constructed. The main result of the work is the statistical data characterizing the astroclimate, which make it possible to predict the possibility of radio astronomical observations in the transparency windows of the wavelength range.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133946182","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":"Evaluation of assisted natural regeneration and stored carbon in Prioria balsamifera (Vermoesen) Bretteler plots of the Luki Biosphere Reserve in Central Kongo, Democratic Republic of Congo","authors":"T. Lubalega","doi":"10.23880/jenr-16000272","DOIUrl":"https://doi.org/10.23880/jenr-16000272","url":null,"abstract":"Extensive programs of enrichment through natural assisted regeneration were implemented between 1946 and 1959 by INEAC (Institute National pour étude Agronomique du Congo belge). He has conducted several studies for the implementation of silvicultural techniques in tropical environments, particularly in the Luki Biosphere Reserve (RBL) in the DRC. The Prioria balsamifera natural assisted regeneration (RNA) plots were part of the various silvicultural treatments implemented between 1956 and 1962 after clear-cutting. Five decades after their establishment, no evaluation has been undertaken. The objective of this study is to evaluate the natural assisted regeneration in the P. balsamifera plots and to account for the carbon sequestered in the P. balsamifera RNA after clear-cutting. The methodological approach to floristic, dendrometric and allometric inventories was used to determine the specific richness and diversity of the different study plots and to account for the carbon of the RNA biomass of the fifteen sampling plots of 0,25 ha each at three sites: Camp1; Camp2 and the RBL Post. The study revealed a higher density per hectare in the Camp1 plot, almost double the last two plots of the sampling. The density / ha varied between 380 to 980 stems / ha. The same trend was observed on the basal area (m2 / ha). This varied between 43 and 68 m2 / ha. The Shannon index used for the analysis of wealth and specific diversity varied between 0.8 and 1.6. The Camp1 plot showed little diversity compared to other plots of sampling. The mean téq CO2 / ha values in our fifteen sample plots (Camp1, amp2, RBL station) are estimated to be 1793.96 téq CO2 / ha, 985.28 teqCO2 / ha and 1305.8 téq CO2 / ha respectively for the three plots.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127838055","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":"Cassava Ecosystem Left Toxic Produce Processing for Building Chain Break Powerful Products for Combating Bio-Pandemics","authors":"Yadava Rc","doi":"10.23880/jenr-16000235","DOIUrl":"https://doi.org/10.23880/jenr-16000235","url":null,"abstract":"Worldwide intensive endeavors exist in actions to derive benefits of ecosystem services viz food, fiber, shelter and betterment of environment. International Livestock Research Institute Kenya presented an ecosystem scenario with emphasis of zoonotic diseases transmission chain breaks in attempt to combat COVID 19. Objective of this study was to develop processing and products so that chains of spreads of such diseases and bio-pandemic be halted. In this study cassava based ecosystem was taken up to utilize toxic produce gets useful in combating environmental disasters. The epidemics of Covid 19 and Locust which became huge global problem will get halted by such chain breaks, which bring global relief from bio based calamities. Thus, Cassava based ecosystem is highly useful in building prosperity and environmental improvement.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122107020","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":"Assessing the Risk of Damages by Wild Boars (Sus Scrofa) in Italian Apennines. Preliminary Report","authors":"N. Miraglia","doi":"10.23880/jenr-16000341","DOIUrl":"https://doi.org/10.23880/jenr-16000341","url":null,"abstract":"Wildlife, particularly wild ungulates, has experienced a significant demographic increase throughout Europe, especially in the last 30 years. The objective of this study was to create a preliminary impact map of wild boars (Sus scrofa) in the Molise region of the Italian Southern Apennines, and their correlation with road accidents. A GIS software was used to process a map, and the impact of wild boars was categorized based on land use. An analysis of the environmental characteristics of the neighboring raster was conducted, considering the presence of roads, particularly with respect to accident events. The georeferenced damages were superimposed onto the impact risk map. The geo-referenced damages caused by wild boars indicate that they are primarily concentrated in areas where road accidents have occurred and where there is a high risk of impact. These maps serve as a valuable starting point for managing wild boars in the region by optimizing strategies from technical and economic perspectives. This process must include population control by evaluating the Annual Useful Increase index (IUA), based on processes related to birth-immigration and mortality-emigration of the species.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126224626","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":"Shifts in Hydro Climatology of U.S. Croplands","authors":"H. Heidari","doi":"10.23880/jenr-16000270","DOIUrl":"https://doi.org/10.23880/jenr-16000270","url":null,"abstract":"Changes in precipitation, temperature and water availability can significantly affect crop yields and hence food security at local and national scales. Despite the significant foreseen changes in hydroclimatology of croplands across the United States over the last decades, there are still lacking consistent information on how future hydroclimatic conditions of U.S. major croplands may change in response to climate change. This study investigates and quantifies shifts in hydroclimatology of five major crops including cotton, corn, soybean, sorghum, and wheat across the conterminous United States (CONUS). The results indicate that the direction and magnitude of hydroclimatic changes are highly variable across the climate projections. However, on average, hydroclimatic changes have a higher impact on sorghum and cotton, respectively. Understanding how croplands can be affected by climate change in the future can help decision-makers and water planners for the implementation and expansion of adaptive paths such as irrigation and conservation plans.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124879883","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":"Blasting Impact on Environment and their Control Measure Techniques in Open Cast Mining","authors":"Dr. Bhumika Das","doi":"10.23880/jenr-16000286","DOIUrl":"https://doi.org/10.23880/jenr-16000286","url":null,"abstract":"Blasting is the most accepted and practiced technique for the breakage of rock. During blasting, the energy transformation takes place in the explosive. Rock breakage during blasting process is accompanied by the generation of ground vibrations, noise, dust, fumes and flies rock. Our paper deals with the impact of blasting on the environment which possess anger to the nearby structure transportation road and affect the people nearby the mines. Blasting operations cause several adverse environmental effects. With the development of new explosives systems and initiation devices, the blasting process has now become more efficient and safer than before. Use of software tools, blast monitoring and analysis makes it possible that damages and dangers from blasting can be predicted before blasting thus adverse impacts of blasting can be controlled and reduced. The researchers construct their empirical models based on the available research data in the field, future empirical model can also be build based on new specific site data. More than one approach to asses environmental impacts of blasting give more alternative ways to prevent the impacts. Also we have discussed different types of control blasting techniques which would help in achieving our goal and their relevance in content of India and which can be use convectively & efficiently on Indian mining sector for dealing the adverse impact of blasting with the help of virtual simulation.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134110432","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":"Aspects Complementary to the Teaching of Environmental Education in Changing Attitudes about High Andean Solid Waste","authors":"Jesus Javier Naccha Urbano","doi":"10.23880/jenr-16000247","DOIUrl":"https://doi.org/10.23880/jenr-16000247","url":null,"abstract":"The objective of the study was to determine the effectiveness of a didactic unit as an environmental education strategy, in initial education students of the National University of San Cristóbal de Huamanga, of the Natural Sciences subject, applying the competence of attitude towards waste solid. The population consisted of the entire population of all students enrolled in the Natural Sciences course 2017-I. The type of research was descriptive and the design was cross-sectional. As instruments for data collection, the pretest and posttest were used, where knowledge about attitudes about solid waste is reported. 21% of students failed the pretest and 100% passed the posttest. Student learning improved significantly with the application of the didactic unit, as an environmental education strategy in the Natural Sciences course, and the students' attitude about solid waste was positive.","PeriodicalId":186239,"journal":{"name":"Journal of Ecology &amp; Natural Resources","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124486423","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}