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Climate and Weather Condition of Balochistan Province, Pakistan 巴基斯坦俾路支省的气候和天气状况
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.104
Saifullah Khan, Surriya Shahab, Muhammad Ishaque Fani, Abdul Wahid, Mahmood-Ul- Hasan, Aslam Khan
The study discusses the climate of Balochistan with a special focus on the variation of weather condition taking into account the mean monthly precipitation, temperature, humidity, atmospheric circulation, air pressure, evapotranspiration and solar energy covering the time duration of 1931-2020 (normal data). The physical barriers that bring variations in the climate of Balochistan contain geographical location, ocean, geomorphology, land use, natural vegetation, and continental extent. Based on precipitation, the province has been divided into two main regions that are arid and semi-arid, while the temperature zones are hot, warm, mild and cool. The southern and eastern part of the province receives heavy rain in the summers (monsoon), whereas it is from the western depressions during the winter season. Balochistan experiences four rainy seasons in winter (cold), pre-monsoon season (warm), monsoon season (hot), and post-monsoon season (mild). Owing to tropical (coastal) and sub-tropical continental characteristics, the area familiarizes two foremost seasons namely winter and summer. The summers of the area long for 5 months in hilly areas while 7 months in continental plains and coastal regions; whereas, winters cover five months in the plains and seven months in the mountains. Based on the appropriation and fluctuation in climate constituents, Balochistan has been classified into two main, 6 meso, and 9 microclimate and weather zones. According to Global Climate Risk Index, 2021, Pakistan has been ranked at 8th in the list of top ten global climate high-risk countries, which are exposed to the ongoing climate change and requires attention to resolve the issue.
本研究考虑了1931-2020年(正常数据)俾路支省的月平均降水量、温度、湿度、大气环流、气压、蒸散量和太阳能,重点讨论了俾路支省气候条件的变化。导致俾路支省气候变化的物理障碍包括地理位置、海洋、地貌、土地利用、自然植被和大陆范围。根据降雨量,该省分为干旱和半干旱两个主要地区,而温度带则分为热、暖、温和和凉爽。该省的南部和东部在夏季受到大雨(季风),而冬季则来自西部低气压。俾路支省经历了四个雨季:冬季(寒冷)、季风前季节(温暖)、季风季节(炎热)和季风后季节(温和)。由于热带(沿海)和亚热带大陆的特点,该地区有两个最重要的季节,即冬季和夏季。丘陵地区夏季长达5个月,大陆平原和沿海地区夏季长达7个月;而平原地区的冬季长达5个月,山区则长达7个月。根据气候成分的归属和波动,将俾路支省划分为6个中气区和9个小气候区。根据2021年全球气候风险指数,巴基斯坦在全球十大气候高风险国家中排名第8位,这些国家面临持续的气候变化,需要关注解决问题。
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引用次数: 0
Studies On the Role of Fungal Strains in Bioremediation of Dyes Isolated from Textile Effluents 真菌菌株在纺织废水染料生物修复中的作用研究
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.100
Muhammad Nawaz, Muhammad Afzaal, Zainab Shahid, Muhammad Ibrahim, Muhammad Ibrahim, Sarfraz Ahmad, Humaira Nawaz
Fungal strains are widely used for the cleaning of soil, sediments, groundwater, surface water, and the ecosystem. The presence of extracellular enzymes in fungi facilitates the process of bioremediation of textile dyes. This study was conducted to observe the quality of water being released from textile dyes industries and also the capability of some fungal strains which can remediate these dyes by showing the tendency of their resistance. Samples of water were collected from the polluted area surrounding the textile dyeing industries in Lahore. In the process of isolation, Potato Dextrose Agar (PDA) medium was used to verify the fungal growth. Fungal strains were purified, and the morphological characterization of fungal strains was carried out at 10X and 100X by using a magnification microscope. The fungal strains, such as Aspergillus niger, Aspergillusoryzae, and Aspergillusflavus were identified. The stress of four types of dyes was given to each fungal strain. The results showed that Aspergillusoryzae was one of the most stable, non-toxic, and resistant fungal species against the high stress of dyes as compared to other species
真菌菌株广泛用于土壤、沉积物、地下水、地表水和生态系统的净化。真菌中胞外酶的存在有利于纺织染料的生物修复。本文对纺织染料工业废水的水质进行了研究,并对几种真菌对染料的修复能力进行了研究。从拉合尔纺织印染工业周围的污染区域收集了水样。在分离过程中,采用马铃薯葡萄糖琼脂(PDA)培养基验证真菌的生长情况。对真菌菌株进行纯化,并在10倍和100倍放大镜下对真菌菌株进行形态学表征。鉴定出黑曲霉、曲霉、黄曲霉等真菌菌株。对每个真菌菌株施加4种染料胁迫。结果表明,曲霉是一种稳定、无毒、抗染料高胁迫的真菌
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引用次数: 0
Quality Assessment of Drinking Water in Vehari District of Punjab, Pakistan 巴基斯坦旁遮普省Vehari地区饮用水质量评价
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.98
Nagina Naveed Riaz, Fazal Ur Rehman, Shabbir Hussain, Sheikh Asrar Ahmad
The current study is performed to assess the physio-chemical characteristics and drinking water quality in three Tehsils (Mailsi, Burewala and Vehari) of District Vehari, Punjab (Pakistan). The water samples of investigated regions were subjected to physicochemical characterization (pH, EC, TDS, HCO3-, CO3-2, Cl-, NO3-, PO4-3, SO4-3, Na+, K+, Ca+2, Mg+2, Fe+2, Cu+2, Zn+2 and Mn+2). It was demonstrated that certain parameters were exceeding WHO standard limits. The water of Lalazar colony, college town, Y-Block and Sharqi colony was found unfit for drinking purposes so it may cause serious health concerns in the citizens of the investigated areas.
目前进行的研究是为了评估旁遮普省(巴基斯坦)韦哈里区的三个县(Mailsi、Burewala和韦哈里)的理化特征和饮用水质量。对研究区水样进行了理化表征(pH、EC、TDS、HCO3-、CO3-2、Cl-、NO3-、PO4-3、SO4-3、Na+、K+、Ca+2、Mg+2、Fe+2、Cu+2、Zn+2、Mn+2)。结果表明,某些参数超出了卫生组织的标准限值。Lalazar殖民地、大学城、Y-Block和Sharqi殖民地的水被发现不适合饮用,因此可能对调查地区的公民造成严重的健康问题。
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引用次数: 0
Estimation of Reservoir Porosity Using Seismic Post-Stack Inversion in Lower Indus Basin, Pakistan 利用叠后反演技术估算巴基斯坦下印度河盆地储层孔隙度
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.103
Sadiq Jalal, Hamza Rehman, Shams-ul- Alam, Abdul Wahid
Seismic post-stack inversion is one of the best techniques for effective reservoir characterization. This study intends to articulate the application of Model-Based Inversion (MBI) and Probabilistic Neural Networks (PNN) for the identification of reservoir properties i.e. porosity estimation. MBI technique is applied to observe the low impedance zone at the porous reservoir formation. PNN is a geostatistical technique that transforms the impedance volume into porosity volume. Inverted porosity is estimated to observe the spatial distribution of porosity in the Lower Goru sand reservoir beyond the well data control. The result of inverted porosity is compared with that of well-computed porosity. The estimated inverted porosity ranges from 13-13.5% which shows a correlation of 99.63% with the computed porosity of the Rehmat-02 well. The observed low impedance and high porosity cube at the targeted horizon suggest that it could be a probable potential sand channel. Furthermore, the results of seismic post-stack inversion and geostatistical analysis indicate a very good agreement with each other. Hence, the seismic post-stack inversion technique can effectively be applied to estimate the reservoir properties for further prospective zones identification, volumetric estimation and future exploration.
地震叠后反演是有效表征储层的最佳技术之一。本研究旨在阐明基于模型的反演(MBI)和概率神经网络(PNN)在储层性质识别(即孔隙度估计)中的应用。应用MBI技术对多孔储层低阻抗区进行了观测。PNN是一种将阻抗体积转化为孔隙度体积的地质统计技术。反演孔隙度是为了观察下姑鲁砂岩储层在井资料控制之外的孔隙度空间分布。将反演孔隙度计算结果与孔隙度计算结果进行了比较。反演孔隙度估计范围为13-13.5%,与Rehmat-02井计算孔隙度的相关性为99.63%。在目标层位观察到的低阻抗高孔隙度立方体表明,它可能是一个潜在的砂道。叠后反演结果与地统计分析结果吻合较好。因此,地震叠后反演技术可以有效地估计储层性质,为进一步的远景层位识别、体积估算和后续勘探提供依据。
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引用次数: 0
Hydrogeochemical Assessment of Groundwater of Taluka Chachro, Thar Parker, district, Sindh, Pakistan 巴基斯坦信德省塔尔帕克地区Taluka Chachro地下水水文地球化学评价
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.101
Muhammad Soomar Samtio, Asghar A. A. D. Hakro, Khadim Hussain Rajper, Abdul Shakoor Mastoi, Riaz Hussain Rajper, Rafique Ahmed Lashari
The study was conducted to evaluate the hydrogeochemistry of groundwater. Twenty-six groundwater samples were analysed for the groundwater quality of Chachro Taluka. The EC and TDS contents in most of the water samples were above WHO (2011) recommended limits. Almost all water samples collected from dugwells located in the study area have elevated concentrations of Na and Cl exceeding the WHO guidelines. Results of Ca, and Mg show that 92% and 96% of groundwater samples were within the prescribed limit respectively. Whereas, HCO3, SO4, and NO3 contnets of 88%, 77%, and 69% respectively are also above the guidelines. Statistical results revealed a dominating trend among the cations of Na+>Ca+2>Mg+2>K+ and anions occur in the order of abundance, as Cl->HCO3->SO4 ->NO3, respectively. The water quality index (WQI) shows that 15% groundwater samples belong to poor category, and 35% water samples were found belonging to very poor category.While, remaining 50% wells were found unsuitable for drinking purpose
对地下水的水文地球化学进行了评价。对26个地下水样品进行了水质分析。大部分水样中EC和TDS含量均高于WHO(2011)建议限量。从位于研究区域的自来井中收集的几乎所有水样的钠和氯浓度都高于世卫组织的指导标准。结果表明,地下水中Ca、Mg含量分别为92%和96%。HCO3、SO4和NO3含量分别为88%、77%和69%,均高于指导值。统计结果显示,Na+>、Ca+2>、Mg+2>、K+阳离子占主导地位,阴离子按丰度顺序依次为Cl->、HCO3->、SO4 ->、NO3。水质指数(WQI)显示,15%的地下水样品属于差类,35%的水样属于极差类。而其余50%的井被发现不适合饮用
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引用次数: 0
Urban Floods and Suitability Analysis of Rainwater Harvesting Potential Areas in Lahore City, Pakistan 巴基斯坦拉合尔市城市洪水及雨水收集潜力区适宜性分析
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.97
Sahar Zia, Safdar Ali Shirazi, Muhammad Nasar-u-Minallah, Madiha Batool
There is a growing threat of urban flooding, particularly in Pakistan that needs attention and requires effective management strategies. The chief trigger for urban flooding is the rapid and unplanned urbanization in areas where impermeable surface inhibits rainwater diffusion and changes the natural water flow. In many developed countries, a technique of rainwater harvesting is implemented as a sustainable strategy to manage urban stormwater. Most studies and projects chiefly focused on the potential use of the Rainwater harvesting technique for water conservation in arid and semi-arid climates. In the present work, GIS and remote sensing methodologies are utilized for the suitability of rainwater harvesting structures. This study was conducted in Lahore, the second most populated city of Pakistan and the capital of Punjab. Generally, the water harvesting technique depends on topographical areas with water accumulation, where there is an availability of open spaces in the form of green areas and barren lands, rainfall, drainage network density, and rainfall distribution, particularly in the urban environment. The SRTM DEM data were used for finding high water accumulated areas, and the Landsat OLI image is used to retrieve land use information i.e. vacant land and open green spaces, existing drainage network density, and rainfall distribution. All these layers were integrated through AHP to detect the potentially suitable sites for the construction of rainwater harvesting structures. Results concluded 94 suitable sites with categorization from highly to critically suitable for the construction of rainwater harvesting structures in which 6 were highly suitable areas in Data Gunj Bakhsh Town and Ravi Town. Besides, residential areas are having a maximum site suitability percentage, followed by roads, agricultural and open spaces in the area under consideration. Considering the suitable sites, further rainwater harvesting methods can be identified in the study area to alleviate urban flooding and improve the urban environment.
城市洪水的威胁日益严重,特别是在巴基斯坦,这需要引起注意并需要有效的管理战略。城市洪水的主要触发因素是在不透水的地表抑制雨水扩散并改变自然水流的地区快速和无计划的城市化。在许多发达国家,雨水收集技术被作为管理城市雨水的可持续战略加以实施。大多数研究和项目主要集中于雨水收集技术在干旱和半干旱气候条件下的节水潜力。在本工作中,利用地理信息系统和遥感方法来确定雨水收集结构的适宜性。这项研究是在拉合尔进行的,拉合尔是巴基斯坦人口第二多的城市,也是旁遮普省的首府。一般来说,集水技术取决于有积水的地形区域,那里有可用的绿地和荒地形式的开放空间、降雨量、排水网络密度和降雨分布,特别是在城市环境中。SRTM DEM数据用于寻找高积水区域,Landsat OLI图像用于检索土地利用信息,即空地和开放绿地、现有排水网络密度和降雨分布。所有这些层都通过层次分析法进行整合,以发现潜在的适合建造雨水收集结构的地点。结果确定了94个高度到极适宜建设集雨设施的适宜地点,其中在Data Gunj Bakhsh镇和Ravi镇有6个高度适宜建设集雨设施的地点。此外,住宅用地的用地适宜率最高,其次是道路、农业用地和休憩用地。考虑到合适的选址,可以在研究区域内确定进一步的雨水收集方法,以缓解城市洪水,改善城市环境。
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引用次数: 0
Assessment of Marine Coastal Water Pollution from Karachi Harbour Pakistan 巴基斯坦喀拉蚩港海洋沿岸水污染评估
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.99
Yasmin Nergis, Jawad Abdullah Butt, Mughal Sharif
In Pakistan, marine pollution is a major problem that is caused by the waste from industrial, municipal, agronomy, and oil leak sources. The pollutant loads along with the coastline areas near Karachi is received from terrestrial contaminants including discharges from Karachi Harbour located on the estuary of the Lyari river. Karachi generates 472 Million Gallon per Day (MGD) of wastewater out of which only 55 MGD is treated and the rest is discharged in the sea. The prevailing sewage treatment plants are functioning at reduced capacity due to the insufficient transmission capacity of interceptors. Water sampling was carried out from the Lyari River and five different selected coastal point around Karachi harbour for physicochemical parameters and selected heavy metals. Results show that the Karachi Harbour area is noticeably polluted, whereas; the coastal environment in the vicinity of Karachi is also under the stress of pollution. High COD and BOD5 values were noticed at the Lyari river samples and the sampling locations close to the Lyari river outfall area. The Pb, Cd, Ni, and Hg heavy metals that pollute marine water are found. This situation is due to the discharge of mixed effluents of industrial and domestic wastes as well as dredging, cargo handling, dumping of ship waste and other coastal activities. The highest value of pollution observed at Karachi Harbour which is near Lyari river mouth, where the domestic and industrial effluents with organic and inorganic wastes have a greater influence on the water quality and the marine environment. At present, there is no effective controlling mechanism for industries to treat their waste, nor has any investigation to assess increasing marine pollution been carried out. As a result, there is an adverse impact on fish habitat and mangroves, corrosion of cargo ships, naval vessels and the residents living in the coastal area. Therefore, the government agencies and industrial sectors should work together to avert marine pollution and attain total environmental sustainability.
在巴基斯坦,海洋污染是一个主要问题,它是由工业、城市、农业和石油泄漏来源的废物造成的。卡拉奇附近沿海地区的污染物负荷来自陆地污染物,包括位于利亚里河河口的卡拉奇港的排放物。卡拉奇每天产生4.72亿加仑(MGD)的废水,其中只有55mgd得到处理,其余的都排放到海洋中。由于截流器的输送能力不足,现有的污水处理厂的运转能力下降。从利亚里河和卡拉奇港周围五个不同的选定沿海点进行了水采样,以获取物理化学参数和选定的重金属。结果表明,卡拉奇港区污染明显,而;卡拉奇附近的沿海环境也受到污染的压力。利亚里河样本和靠近利亚里河出水口的采样点COD和BOD5值较高。发现了污染海水的Pb、Cd、Ni、Hg等重金属。造成这种情况的原因是排放工业和生活废物的混合污水,以及疏浚、装卸货物、倾倒船舶废物和其他沿海活动。在靠近利亚里河口的卡拉奇港观测到的污染值最高,那里的生活和工业废水以及有机和无机废物对水质和海洋环境的影响更大。目前,没有有效的控制机制来控制工业处理其废物,也没有进行任何调查来评估日益增加的海洋污染。因此,对鱼类栖息地和红树林造成不利影响,对货船、军舰和沿海地区居民造成腐蚀。因此,政府机构和工业部门应共同努力,避免海洋污染,实现环境的全面可持续性。
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引用次数: 0
Fault Control on Groundwater Flow in An Alluvial Aquifer, Chaman and Khojak Basins, Balochistan, Pakistan 巴基斯坦俾路支省Chaman和Khojak盆地冲积含水层地下水流的断层控制
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.102
Noor Ullah, Najeebullah Kakar, Din Muhammad Kakar
Geological structures such as faults play a critical role in the flow of fluids in a reservoir by affecting its permeability. This study explores the role of the Chaman Fault in the distribution of hydrological division, groundwater separation of the aquifer systems of Khojak and Chaman basins. The Chaman Fault is a left-lateral strike-slip transform plate boundary located at the border city of Chaman, District Killa Abdullah, Balochistan. The Chaman fault plays an important role in the division of groundwater in the subsurface, accommodating the structural compartment of the aquifer system. The studies showed that the strike-slip movement of the fault made the aquifer impervious along the fault line. This assertion may also be confirmed by the drastic change in the water table across the fault. Sharp changes in the groundwater table and Total Dissolved Solids (TDS) were observed during the study. The Karazes which are an indigenous method of irrigation is present in the eastern foothills of Khojak mountains called Khojak basin. Here the water table is as shallow as ≈ 6 meters in comparison to the western side of the fault, where the water table drops to ≈274 meters towards the valley of Chaman basin. The average TDS level on the eastern side of the fault line is 773 mg/L and 1361 mg/L on the western side. Therefore, the Chaman fault is acting as a groundwater barrier which is feeding the Karezes for centuries.
断层等地质构造通过影响储层渗透率,对储层流体的流动起着至关重要的作用。本研究探讨了查曼断裂在霍贾克盆地和查曼盆地含水层系统水文分区分布、地下水分离中的作用。查曼断层是位于俾路支省基拉·阿卜杜拉地区查曼边境城市的左侧走滑变换板块边界。查满断裂在地下地下水的划分中起着重要作用,容纳着含水层系统的构造隔室。研究表明,断层的走滑运动使沿断层的含水层不透水。这一论断也可以从断层上地下水位的剧烈变化中得到证实。研究期间,地下水位和总溶解固形物(TDS)发生了剧烈变化。Karazes是一种土著灌溉方法,位于霍贾克山脉的东部山麓,称为霍贾克盆地。与断层西侧相比,这里的地下水位约为6米,而断层西侧的地下水位向查曼盆地山谷方向下降至约274米。断层东侧的平均TDS水平为773 mg/L,西侧为1361 mg/L。因此,查曼断层充当了地下水屏障,几个世纪以来一直为卡列泽斯山脉提供水源。
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引用次数: 0
The Role of Information and Communication Technologies (ICT) in Environmental Quality: An Empirical Analysis for South Asian Economies 信息和通信技术(ICT)在环境质量中的作用:南亚经济体的实证分析
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.106
Zubaria Andlib, Adnan Khan
Present study is an attempt to provide an in-depth understanding of the relationship between ICT, financial development, governance effectiveness, and COE nexus in selected South Asian countries. The data were acquired from WDI and applied FMOLS, DOLS, FEOLS methods of estimation for the period 1995-2019. It is observed that ICT has negative while financial development has a positive impact on COE in the case of four South Asian economies. Concerning the impact of governance on COE, it is observed that governance effectiveness is negatively associated with COE. It is evident from the empirical analysis that COE can be mitigated with effective governance policies.
本研究旨在深入了解选定的南亚国家中ICT、金融发展、治理有效性和COE联系之间的关系。数据来自WDI,采用FMOLS、DOLS、FEOLS方法估计1995-2019年的数据。可以观察到,在四个南亚经济体中,信息通信技术对COE具有负面影响,而金融发展则具有积极影响。关于治理对COE的影响,可以观察到治理有效性与COE呈负相关。从实证分析中可以明显看出,COE可以通过有效的治理策略得到缓解。
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引用次数: 0
Neural Network and Regression Methods for Estimation of the Average Daily Temperature of Hyderabad for the Years 2018-2020 海得拉巴2018-2020年日平均气温估算的神经网络和回归方法
Pub Date : 2023-06-26 DOI: 10.46660/ijeeg.v12i2.107
Adeel Tahir, Mamnoon Akhter, Zaheer Uddin, Muhammad Sarim
A qualitative study on temperature distribution has been executed in Hyderabad by several researchers. This study, however, is the first attempt to study temperature distribution quantitatively. Two different methods, i.e., Artificial Neural Network (ANN) and Regression Analysis (RA), have been used to determine the average daily temperature distribution for Hyderabad, a city in Pakistan. Both the methods are used to predict the average daily temperature of the years; 2018, 2019, and 2020. In Neural Network (NN) analysis, the network was trained and validated for three years with temperature recorded from 2015-2017. With the help of training and validation parameters of the hidden layer, the average d aily temperature was predicted for 2018-2020. Based on input parameters (dew point, relative humidity, and wind speed), a multiple regression model was developed, and average daily temperature for the years 2018-2020 was predicted again. For validation of the model statistical errors, Root Mean Square Error (RMSE), Mean Absolute Error (MABE), Mean Absolute Percent Error (MAPE), and coefficient of determination are calculated. The statistical errors show that multiple regression models and neural network models provide a good prediction of temperature distribution. However, the results of the neural network are better than the regression model.
几位研究人员对海得拉巴的温度分布进行了定性研究。然而,这项研究是第一次尝试定量研究温度分布。采用人工神经网络(ANN)和回归分析(RA)两种不同的方法确定了巴基斯坦海得拉巴市的日平均温度分布。两种方法均用于预测历年日平均气温;2018年、2019年和2020年。在神经网络(NN)分析中,该网络在2015-2017年的温度记录下进行了三年的训练和验证。利用隐层的训练和验证参数,预测了2018-2020年的平均日气温。基于输入参数(露点、相对湿度和风速)建立多元回归模型,对2018-2020年的日平均气温进行了预测。为了验证模型的统计误差,计算均方根误差(RMSE)、平均绝对误差(MABE)、平均绝对百分比误差(MAPE)和决定系数。统计误差表明,多元回归模型和神经网络模型能较好地预测温度分布。然而,神经网络的结果优于回归模型。
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引用次数: 0
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International journal of economic and environment geology
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