Ecological Questions最新文献_第3页

Ensuring sustainability in Libya with renewable energy and pumped hydro storage 利用可再生能源和抽水蓄能确保利比亚的可持续发展

Ecological Questions Pub Date : 2024-03-18 DOI: 10.12775/eq.2024.036

Monaem Elmnifi, Mohamed M. Khaleel, S. Vambol, Sergiy Yeremenko, Yasser F. Nassar, O. Dzhulai

{"title":"Ensuring sustainability in Libya with renewable energy and pumped hydro storage","authors":"Monaem Elmnifi, Mohamed M. Khaleel, S. Vambol, Sergiy Yeremenko, Yasser F. Nassar, O. Dzhulai","doi":"10.12775/eq.2024.036","DOIUrl":"https://doi.org/10.12775/eq.2024.036","url":null,"abstract":"A radical transformation is occurring in the global energy system, with solar PV and wind energy contributing to three-quarters of new electricity generation capacity due to their affordability. This shift towards renewable electrification of energy services, such as transportation, heating, and industry, will gradually replace fossil fuels in the coming decades. This paper highlights Libya's potential to achieve energy self-sufficiency in the twenty-first century. In addition to its fossil energy resources, Libya possesses favourable conditions for solar, wind, and moderate hydroelectric energy. The solar energy potential alone is approximately 100 times greater than what is needed to support a fully solar-powered system that provides energy consumption similar to developed countries for all Libyan citizens, without relying on fossil fuels. Moreover, Libya's Green Mountain range offers substantial opportunities for low-cost pumped off-river hydropower storage. Therefore, the integration of solar and wind energy, complemented by hydropower and battery storage, is likely to be the primary pathway for the rapid growth of Libya's renewable electricity sector.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"35 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140234526","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

A landscape in turmoil: characterizing the multi-decadal growth trajectory of brackishwater aquaculture in Medinipur Coastal Plain, India 动荡中的景观：印度梅迪尼普尔沿海平原咸水养殖十多年发展轨迹的特点

Ecological Questions Pub Date : 2024-03-18 DOI: 10.12775/eq.2024.033

Mrinmoyee Naskar, S. Neogy, Asit Kumar Roy, Debajit Datta

{"title":"A landscape in turmoil: characterizing the multi-decadal growth trajectory of brackishwater aquaculture in Medinipur Coastal Plain, India","authors":"Mrinmoyee Naskar, S. Neogy, Asit Kumar Roy, Debajit Datta","doi":"10.12775/eq.2024.033","DOIUrl":"https://doi.org/10.12775/eq.2024.033","url":null,"abstract":"The spatio-temporal growth trajectory of coastal brackishwater aquaculture (CBA) in the coastal tracts of Purba Medinipur, India and its impending repercussions on the immediate environs, was primarily assessed in this study through application of geostatistics, landscape metrics, and geospatial technologies. Three Community Development (CD) Blocks, namely, Contai-I, Deshapran, and Ramnagar-II were considered to analyze the growth pattern of the area under CBA. Landsat datasets of the assessment years (1991, 2001, 2011, 2021, and 2023) were used to prepare the land use/ land cover (LULC) maps and to derive pertinent landscape metrics of patch and class levels for this region. This brought forward a highly fragmented and dispersive spatial concentration of the CBA farms in the entire study area. Additionally, Census Village-wise growth pattern of CBA was analyzed by conducting a spatial autocorrelation analysis which depicted prominent clustering of villages with a higher concentration of CBA. Results showed that there has been an incessant growth of CBA in the last three decades, however, a sharp drop has been recorded owing to recurrent bouts of diseases, swelling production costs, and a sharp drop-in market rate. The nature of growth and/ or decay of the CBA was predicted for the year 2025 using Cellular Automata and Artificial Neural Network (CA-ANN) model. After careful calibration and validation, the model projected further lessening of the CBA area along with a continued expansion of abandoned aquaculture. Accordingly, ecologically viable livelihood alternatives and environmentally sustainable management measures were suggested for the efficient monitoring of these highly fragile tropical ecosystems.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"287 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140233335","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

Key factors influencing tree planting decision of farmers on farm land: A case study in Malakand, Pakistan 影响农民农田植树决定的关键因素：巴基斯坦马拉坎德省案例研究

Ecological Questions Pub Date : 2024-03-18 DOI: 10.12775/eq.2024.037

Pervez Khan, M. Bui, Dinh Hai Le, Sohail Ahmad, Faisal Khan, Sajjad Ullah, Adnan Ahmad, Lee Shiou Yih

{"title":"Key factors influencing tree planting decision of farmers on farm land: A case study in Malakand, Pakistan","authors":"Pervez Khan, M. Bui, Dinh Hai Le, Sohail Ahmad, Faisal Khan, Sajjad Ullah, Adnan Ahmad, Lee Shiou Yih","doi":"10.12775/eq.2024.037","DOIUrl":"https://doi.org/10.12775/eq.2024.037","url":null,"abstract":"In order to cope with forest degradation and deforestation, farm forestry is a new tool for plantation purposes that combat these issues. Planting trees on farmlands is the most practical and viable approach given in the current situation in Pakistan for recovering the degraded forest lands, ensuring the sustainable use of marginal areas, and satisfying the rural requirements for the benefits of trees, both economically and non-economically. Therefore a socio-economic study of farmers in relation to tree planting is very important, to understand farmers perception about farm trees growing. In this study a total of 120 households were surveyed and interviewed in district Malakand for factor affecting farm tree planting decision. The result of step wise binary logistics regression analysis indicated that the factors including: Education level, Attitude of tree planting and silviculture knowledge were significantly influenced on tree planting decision of household in the study area. The total household income for planter was significantly higher than non-planter. The study result may provide the basis for proposing solution for future to strengthen trees planting decision for plantation, with the intention of promoting household engagement and attract farmers towards plantation activities in the study area.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"249 7‐8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140233666","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

Assessment of Heavy Metal Contamination and Health Risks in Road Deposited Sediments: A Study in Owerri, Nigeria 道路沉积物中重金属污染及健康风险评估：尼日利亚奥韦里的一项研究

Ecological Questions Pub Date : 2024-03-18 DOI: 10.12775/eq.2024.029

Ubechu Bridget Odochi, Joan Enimakpokpo, Casmir Chukwuemeka Zanders Akaolisa, O. Agbasi, Helen Nwachukwu

{"title":"Assessment of Heavy Metal Contamination and Health Risks in Road Deposited Sediments: A Study in Owerri, Nigeria","authors":"Ubechu Bridget Odochi, Joan Enimakpokpo, Casmir Chukwuemeka Zanders Akaolisa, O. Agbasi, Helen Nwachukwu","doi":"10.12775/eq.2024.029","DOIUrl":"https://doi.org/10.12775/eq.2024.029","url":null,"abstract":"The study aims to conduct an ecological risk assessment and build a pollution model for assessing trace metal concentrations in road dust in Owerri, Nigeria. Key roadways in the urban area were chosen based on traffic volume, population density, and human activity. Data was collected at 500-meter intervals throughout each route, and silt samples were collected by systematic sweeping of a 1 square metre area covering road pavements and curbs. The examination found metallic pollutants such as chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), and lead (Pb) inside the RDS. Nickel (Ni), copper (Cu), cadmium (Cd), and lead (Pb) levels were substantially higher than their respective background values. Carbon monoxide levels along Port Harcourt Road, specifically 670 mg/l, are much higher than the background norm, indicating a considerable influence of human activity. Estimated enrichment values for the metallic elements ranged from insignificant (Mn) to extremely high (Co, Ni, Cu, Zn, Pb). Based on geoaccumulation index data, it can be concluded that the RDS has significant levels of contamination in terms of Ni and Pb, implying a considerable buildup of certain heavy metals, most likely due to anthropogenic acts. The study identified two major sources of heavy metal contamination: natural sources originating in the Earth's crust and transportation-related activities such as air deposition, corrosion, and vehicle degradation.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"36 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140231538","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

Using VES and GIS-Based DRASTIC Analysis to Evaluate Groundwater Aquifer Contamination Vulnerability in Owerri, Southeastern Nigeria 利用 VES 和基于地理信息系统的 DRASTIC 分析评估尼日利亚东南部奥韦里地下水含水层的污染脆弱性

Ecological Questions Pub Date : 2024-03-18 DOI: 10.12775/eq.2024.031

Emeka Okoli, Casmir Chukwuemeka Zanders Akaolisa, B. O. Ubechu, O. Agbasi, Anna Szafarczyk

{"title":"Using VES and GIS-Based DRASTIC Analysis to Evaluate Groundwater Aquifer Contamination Vulnerability in Owerri, Southeastern Nigeria","authors":"Emeka Okoli, Casmir Chukwuemeka Zanders Akaolisa, B. O. Ubechu, O. Agbasi, Anna Szafarczyk","doi":"10.12775/eq.2024.031","DOIUrl":"https://doi.org/10.12775/eq.2024.031","url":null,"abstract":"This study assesses groundwater vulnerability in Owerri, Nigeria, using Vertical Electrical Sounding (VES) and Geographic Information System (GIS)-based DRASTIC modeling. The research methodology includes literature review, field survey, geological feature mapping, hydrogeological assessment, geo-electrical sounding, and data interpretation. Owerri, a rapidly developing city with flat topography and a growing population, uses the DRASTIC model to construct a groundwater vulnerability map. The model evaluates the risk of groundwater contamination using seven critical criteria, including depth to water table, net recharge, aquifer media, soil media, topography, vadose zone impact, and hydraulic conductivity. Each parameter was given a weight and rating, and the DRASTIC Index (DI) was calculated by summing the products of the weights and ratings for each factor. The results of the vulnerability assessment indicated that approximately 49% of the study area falls into the high vulnerability category, around 45% is classified as moderate vulnerability, and the remaining 6% is labeled as low vulnerability. The study reveals moderate to high vulnerability zones in Owerri, Nigeria, due to factors like lower slope terrain, permeable aquifer media, and vadose zone impact. The use of VES and GIS-based DRASTIC mapping techniques provides insights into groundwater vulnerability, aiding in sustainable resource management and environmental protection. The findings emphasize the importance of understanding potential risks and the need for effective management strategies to safeguard clean water supplies. Further research and mitigation efforts should focus on highly vulnerable areas.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"46 47","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140231639","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

Spatial and temporal monitoring of wildfires in Golestan province using remote sensing data 利用遥感数据对戈勒斯坦省野火进行时空监测

Ecological Questions Pub Date : 2024-03-17 DOI: 10.12775/eq.2024.027

Ebrahim Asadi Oskouei, S. Shobairi, Hadis Sadeghi, Mojtaba Shokouhi, Ebrahim Fatahi, Leili Khazanedari, Lingxiao Sun, Haiyan Zhang, Chunlan Li, He Jing, Qirghizbek Ayombekov

{"title":"Spatial and temporal monitoring of wildfires in Golestan province using remote sensing data","authors":"Ebrahim Asadi Oskouei, S. Shobairi, Hadis Sadeghi, Mojtaba Shokouhi, Ebrahim Fatahi, Leili Khazanedari, Lingxiao Sun, Haiyan Zhang, Chunlan Li, He Jing, Qirghizbek Ayombekov","doi":"10.12775/eq.2024.027","DOIUrl":"https://doi.org/10.12775/eq.2024.027","url":null,"abstract":"Wildfires are one of the most significant factors of ecosystem change. Knowing the wildfire regime (frequency, intensity, and distribution pattern) is essential in wildfire management. This research aims to analyze the spatiotemporal pattern of wildfires in Golestan in 2001-2021 using MODIS data, burned area product (MCD64A1). For this purpose, the annual and monthly frequency, as well as the trend of wildfires based on types of forest, pasture, and crop cover, were statistically analyzed. The local Moran pattern analysis method and kernel density function were used to analyze the spatial dynamics of wildfire. The results showed that 18,462 wildfires occurred in Golestan, the highest of which was in 2010, with 2,517 wildfires (13.8%). The lowest number of wildfires, with only 57 events (0.5%), was in 2001. Based on the local Moran model results and the kernel density function, the wildfires' extent and intensity were greater in the plains and foothills to the south and southeast of Golestan. The lowest extent and intensity of the wildfire corresponded to the eastern parts of the province. The frequency of wildfires was higher in the hot period of the year (spring and summer). However, the period of occurrence of wildfire and the peak of wildfire changes in different uses. The wildfire zones in June were wider and more intense than in other months. The frequency and spatial extent of wildfires in agricultural lands from May to July, pasture lands in July, August, and September, and forest lands in November and December were more than in other months. Weather conditions play a significant role in the occurrence of wildfire in the forest lands of Golestan. The results of this research help understand wildfire risk areas and provide a scientific basis for predicting and controlling wildfires and reducing carbon emissions related to them.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"168 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140235874","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

Effect of litter decomposition on mowing and plant composition change during Solidago stand restoration 枯落物分解对刈割和实生植物植被恢复过程中植物组成变化的影响

Ecological Questions Pub Date : 2024-02-08 DOI: 10.12775/eq.2024.026

P. Perera, I. Gruss, M. Szymura

{"title":"Effect of litter decomposition on mowing and plant composition change during Solidago stand restoration","authors":"P. Perera, I. Gruss, M. Szymura","doi":"10.12775/eq.2024.026","DOIUrl":"https://doi.org/10.12775/eq.2024.026","url":null,"abstract":"Decomposition of organic matter supports important soil ecosystem services. The rate of decomposition depends mostly on the type of plant material being decomposed and the abundance and diversity of organisms that process the organic matter. Consequently, any disturbance to the soil ecosystem will affect the decomposition process. Invasive plants, such as Solidago species, pose a serious ecological threat to natural habitats, so effective and environmentally safe methods of controlling their occurrence should be developed. In this study, decomposition rates were used as indicators of soil health during grassland restoration after Solidago invasion. Different seed mixtures (grasses, grasses with legumes, seeds collected from a seminatural meadow; use of fresh hay and no seeds) were sown during a field experiment and different mowing frequencies (1, 2 and 3 times per year) were established. Two hypotheses were tested: (1) plant species composition used in the restoration process affects litter decomposition rates, and (2) mowing regimes affect litter decomposition rates. It was found that decomposition rates were higher in plots with the highest species diversity. This indicates that an increase in species diversity has a positive effect on soil processes. Secondly, mowing two and three times per season has a positive effect on the decomposition process. In conclusion, decomposition rates can be used as a tool to identify adequate grassland management.","PeriodicalId":502646,"journal":{"name":"Ecological Questions","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140459707","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