Journal of Geoscience and Environment Protection最新文献_第4页

Evolution of the Physico-Chemical Quality of the Water in the Manantali Dam Reservoir from 1989 (One Year after Impoundment) to 2022 1989年(蓄水后1年)至2022年马南塔里水库水理化质量演变

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.119022

Joseph Mbeur Faye, Saïdou Ndao, Louis Eugène Victor Sambou

{"title":"Evolution of the Physico-Chemical Quality of the Water in the Manantali Dam Reservoir from 1989 (One Year after Impoundment) to 2022","authors":"Joseph Mbeur Faye, Saïdou Ndao, Louis Eugène Victor Sambou","doi":"10.4236/gep.2023.119022","DOIUrl":"https://doi.org/10.4236/gep.2023.119022","url":null,"abstract":"The Manantali dam is located on the Bafing River in the Kayes region of Mali. It is the main tributary of the Senegal River. The water released from the dam provides year-round access to water for drinking, irrigation and livestock watering. The Manantali dam regulates the river’s flow, generates energy and supports agricultural development in all three countries (Mali, Mauritania, and Senegal). The aim of this article is to monitor changes in the physico-chemical quality of the water in the dam’s reservoir from 1989 (one year after the dam was impounded) to 2022. In order to carry out this work, we analysed the evolution of physico-chemical parameters in Stations 1 and 3 of the dam, on the basis of fluctuating water levels in the reservoir. The results obtained show a similarity in the parameters measured at the two stations, except for iron content, which is higher at Station 3. The average pH is weakly basic (7.44 at Station 1 and 7.29 at Station 3) and the average water temperature is between 26.5°C at Station 1 and 26.2°C at Station 3. The average conductivity of the water at Station 1 is 38.8 μS/cm and 39.8 μS/cm at Station 3, attesting to low mineralization of the water. The oxygen content of 5.75 mg/L at Station 1 and 5.00 mg/L at Station 3 shows good oxygenation of the water, which is favorable for the development of most fish and aquatic plant species. Ammonium levels of 0.02 mg/L at Station 1 and 0.06 mg/L at Station 3 show that the water is not contaminated. In addition, the Water Quality Index (WQI) was calculated, showing excellent water quality at Station 1 and good quality at Station 3. Overall, the results obtained show that the water is of good quality, enabling the authorities of the Organization for the Development of the Senegal River (OMVS) to achieve their development objectives.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135799538","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}

引用次数: 0

Rapid Urbanization and Environment Management in Nkafu Municipality, Eastern DR Congo 刚果民主共和国东部恩卡富市的快速城市化和环境管理

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.1110009

Alain Tshimbalanga, Patient M. Zamukulu, Liévin Chirhalwirwa, Katcho Karume

{"title":"Rapid Urbanization and Environment Management in Nkafu Municipality, Eastern DR Congo","authors":"Alain Tshimbalanga, Patient M. Zamukulu, Liévin Chirhalwirwa, Katcho Karume","doi":"10.4236/gep.2023.1110009","DOIUrl":"https://doi.org/10.4236/gep.2023.1110009","url":null,"abstract":"Rapid and uncontrolled urbanization as well as urban land management are major constraints to land planning in the Democratic Republic of Congo. A household data collection and analysis was carried out in 283 random households in the Nkafu municipality, eastern DR Congo, to assess the local community’s perception of rapid urbanization and its impact on land policy and management of the built landscape. Data of socio-demographics characteristics, rapid urbanization, and environment management data were collected and analyzed using XLStat version 2019. In addition, the study area location map, land use and cover change maps were generated using ArcMap 10.8. Results indicate that landowners are dominant and, build simple houses with unsustainable building materials (i.e. wooden plank) obtained locally. In addition, land management is not appreciated by local communities, due to anarchic construction due to lack of financial resources generating thus an increasing amount of urban waste, which is poorly managed. The study suggests, urban roads renew, building in conformity with urban planning and building regulations, potable water supply and health services availability to improve the study area. Geographic Information Systems (GIS) use, would provide spatial information on land planning in the study area.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135053463","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}

引用次数: 0

Remote Sensing Landslide Monitoring Based on Machine Learning Method 基于机器学习方法的滑坡遥感监测

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.1110008

Zhen Chen, Yiyang Zheng

引用次数: 0

Uranium Series Disequilibrium and Precision Measurement of Radionuclides Activity in Sediment Sample Using Low Background Gamma Spectrometry 铀系不平衡及沉积物样品中放射性核素活度的低本底伽马能谱精确测量

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.1110010

Abdul J. Khan, Umme-Farzana Syed, Amy L. Roselan, Cynthia A. Costello

{"title":"Uranium Series Disequilibrium and Precision Measurement of Radionuclides Activity in Sediment Sample Using Low Background Gamma Spectrometry","authors":"Abdul J. Khan, Umme-Farzana Syed, Amy L. Roselan, Cynthia A. Costello","doi":"10.4236/gep.2023.1110010","DOIUrl":"https://doi.org/10.4236/gep.2023.1110010","url":null,"abstract":"Low background gamma spectrometry was used to measure the radionuclides activity of 238U, 232Th, and 235U series as well as 40K and 137Cs in a sediment sample. The goal of the study was to measure the 238U (63.3 keV peak of 234Th; 1001 keV peak of 234mPa) and 235U (143.76 keV, 163.33 keV, and 205.31 keV peaks) activity by low background gamma spectrometry in sediment sample. 235U activity in environmental samples is difficult to accurately measure by gamma spectrometry due to its low abundance in nature and low gamma line intensities at 143.76 keV, 163.33 keV, and 205.31 keV. We have shown that by using low background gamma spectrometry, it is possible to accurately measure the 235U activity in sediment samples. The 235U activity was measured without using the major peak of 185.7 keV (Iγ = 57.2%) which requires interference correction from 186.21 keV of 226Ra. 226Ra activity was determined by measuring 222Rn daughters (214Pb and 214Bi). The precision and accuracy of the gamma activity measurement in the sediment sample were verified by using the HPGe detectors with Certified Reference Material (CRM) Irish Sea Sediment (IAEA-385). The results obtained for the 63.33 keV energy line of 234Th are compared with the 1001 keV energy line of 234mPa. The values of 238U and 235U activities, as well as 40K, 137Cs, and 226Ra, agreed with the certificate values of CRM. The results show that the 238U is in equilibrium with its daughters (234Th, 234mPa, and 210Pb). 232Th is also in equilibrium with its daughters (228Ra, 212Pb, 212Bi and 208Tl). 235U/238U activity ratio of 0.046 ± 0.007 in the sediment is constant in nature but fluctuates due to geological processes. A value of 0.055 ± 0.008 was found in our sediment sample.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059763","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}

引用次数: 0

Synthesis of Modified Walnut Shell Biochar and Its Performance of Cadmium Adsorption 改性核桃壳生物炭的合成及其对镉的吸附性能

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.119020

Jiankun Chen, Jianan Wang

{"title":"Synthesis of Modified Walnut Shell Biochar and Its Performance of Cadmium Adsorption","authors":"Jiankun Chen, Jianan Wang","doi":"10.4236/gep.2023.119020","DOIUrl":"https://doi.org/10.4236/gep.2023.119020","url":null,"abstract":"Biochar is a functional and environmentally friendly material mainly made from by-products of industrial and agricultural production as raw material, which is cracked at high temperatures and slow speeds. The preparation of biochar requires the thermochemical conversion of biomass in an oxygen-restricted environment. Different raw materials and preparation processes result in biochar with different internal structures and biofunctional groups, which often have different properties. Adsorption of heavy metal pollutants is one of the main research directions for biochar application, and there are still areas that can be improved in the current research for biochar for treating heavy metal wastewater. In this study, we take the treatment of cadmium-containing wastewater as an example, walnut shell biochar (WSBC) as a carrier, iron(VI) compounds as a modifying reagent, and test the performance of cadmium-containing wastewater treatment using simulated cadmium-containing wastewater by adjusting the pyrolysis process and modification method at the same time to find the optimal experimental scheme, and give a reasonable theoretical explanation in relation to the results of the characterization tests, such as SEM, FT-IR, and so on. The characterized results show that iron(VI) compound (K2FeO4)-modified WSBC has a significant ability to remove cadmium contamination in the wastewater (remove 96.62% of cadmium in 1 minute), and its structure is different from other iron compound-modified ones. The aim of this study is to improve the efficiency of cadmium adsorption by specific types of biochar, while realizing the whole process as environmentally friendly as possible.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135698996","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}

引用次数: 0

Characteristic Analysis of Short Time Heavy Rain in Yulin, China 榆林市短时暴雨特征分析

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.119011

Yiqing Xiao, Qiyuan Hu, Pingyun Li, Jing Yao

引用次数: 0

Reservoir Characterization of Special Dolomite Rock of Fengcheng Formation in Junggar Basin, China 准噶尔盆地丰城组特殊白云岩储层特征

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.119021

Famu Huang, Yun Liu, Chenhao Pan, Duocai Wang, Ping Zhang, Yaping Fu, Hong Zhang, Haibo Su, Jun Lu, Zhi Zhong, Bin Wei

{"title":"Reservoir Characterization of Special Dolomite Rock of Fengcheng Formation in Junggar Basin, China","authors":"Famu Huang, Yun Liu, Chenhao Pan, Duocai Wang, Ping Zhang, Yaping Fu, Hong Zhang, Haibo Su, Jun Lu, Zhi Zhong, Bin Wei","doi":"10.4236/gep.2023.119021","DOIUrl":"https://doi.org/10.4236/gep.2023.119021","url":null,"abstract":"Dolomites and eruptive rocks are well-developed in the Permian Fengcheng Formation in Junggar Basin in China, in which oil and gas are accumulated extensively. Until now, high-yield industrial oil and gas flows have been obtained in the dolomitic tuff of the second unit of the Fengcheng Formation, which demonstrates the huge exploration potential of the thick layer of massive dolomitic tuff. The lithology of the second unit of the Fengcheng Formation in this area has gradually transformed from the dolomite, dolomitic tuff to siltstone from east to west. Moreover, the well testing shows that the reservoir is oil-saturated, and the production rate mainly depends on the reservoir’s physical properties and fracture development. In this study, different types of data including core data, well log and seismic data are used cooperatively to characterize the sedimentary, structure and fracture features of the Fengcheng Formation, and then characterize the promising target zone in the study area. The result indicates that hydrocarbons are most accumulated along the deep fault in the Wu-Xia fault zone, which will be the favorable zone for the next progressive exploration.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135799319","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}

引用次数: 0

Impact of Climate Change on Agriculture, Fisheries and Livestock Sectors in Kuwait 气候变化对科威特农业、渔业和畜牧业的影响

Journal of Geoscience and Environment Protection Pub Date : 2023-01-01 DOI: 10.4236/gep.2023.1110011

Athari Abdulaziz Almutawa, Abdulrahman Alfraih

{"title":"Impact of Climate Change on Agriculture, Fisheries and Livestock Sectors in Kuwait","authors":"Athari Abdulaziz Almutawa, Abdulrahman Alfraih","doi":"10.4236/gep.2023.1110011","DOIUrl":"https://doi.org/10.4236/gep.2023.1110011","url":null,"abstract":"The issue of limited agricultural land and production, rising food demand, and heavy reliance on imported foods in Kuwait have resulted in pressing concerns regarding food security and equity. Currently, Kuwait heavily relies on imports for over 90% of its food supply, which not only impacts the country’s sustainability but also affects other nations. Essential staples like rice, wheat, corn, milk powder, cooking oil, and chicken are particularly vulnerable to recent global price shocks. The consequences of climate change include rising temperatures, warming oceans, increasing incidences of droughts, losses in biodiversity, heightened health risks, and a decline in overall food production. These effects further strain an already stressed ecosystem as Kuwait lacks a comprehensive adaptive strategy that outlines both short-term and long-term action plans/goals to address these challenges. Specifically, within the agricultural, livestock, and fisheries sectors while simultaneously equipping it to handle emergencies or hazardous crises. This paper aims to outline the issues of limited agricultural land and production, rising food demand, and heavy reliance on imported foods, and how Kuwait must prioritize the development and improvement of sustainable agricultural practices and technologies. Furthermore, identifying key stakeholders and their current roles and constraints.","PeriodicalId":15859,"journal":{"name":"Journal of Geoscience and Environment Protection","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135106291","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}

引用次数: 0