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SOIL CONSERVATION PRACTICES IN FOREST OF NEPAL 尼泊尔森林土壤保持实践
Pub Date : 2021-07-01 DOI: 10.26480/jcleanwas.02.2021.73.77
A. Paudel, Asmita Bhattarai, P. Yadav
Forests play a vital role in Nepalese rural communities, which rely on them for firewood, employment, additional meals, and good health to sustain and improve their lifestyles. It has contributed to the Nepalese farming system. Soil helps in regulating ecological processes like nutrient uptake, decomposition, and water availability in the forest. Nepal’s annual soil loss ranges from 2-105 t ha-1 with 34% water-induced erosion, 60% mass wasting (geological erosion), and 3 % by wind erosion. Forest soil requires various management and conservation practices to minimize the exploitation of forest lands. Hence, this article explains the ongoing soil conservation approaches like Afforestation, Agroforestry, and community forest management in Nepal. This article can also be the roadmap for the formulation of appropriate policies in soil conservation, and indirectly in maintaining sustainability in the ecology.
森林在尼泊尔农村社区发挥着至关重要的作用,他们依靠森林提供木柴、就业、额外的食物和良好的健康,以维持和改善他们的生活方式。它为尼泊尔的农业系统做出了贡献。土壤有助于调节生态过程,如森林中的养分吸收、分解和水分供应。尼泊尔每年的土壤流失量在2-105吨/公顷之间,其中34%是由水侵蚀引起的,60%是由物质损耗(地质侵蚀)引起的,3%是由风蚀引起的。森林土壤需要各种管理和保护措施,以尽量减少对林地的开发。因此,本文解释了尼泊尔正在进行的土壤保持方法,如造林、农林业和社区森林管理。本文也可以作为制定适当的土壤保持政策的路线图,并间接地维持生态的可持续性。
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引用次数: 1
INVESTIGATION OF THE EFFECTS OF SALT DUST CAUSED BY DRYING OF URMIA LAKE ON THE SUSTAINABILITY OF URBAN ENVIRONMENTS 乌尔米亚湖干枯盐尘对城市环境可持续性影响的研究
Pub Date : 2021-07-01 DOI: 10.26480/jcleanwas.02.2021.78.84
Vahid Isazade, Abdul Baser Qasimi, Gordana Kaplan
Due to the gradual drying of parts of Urmia Lake, several centers of salt dust which is created and influence the agriculture, economy, public health and causes migrations within the region of the Urmia Lake. Hence, knowing the temporal and spatial distribution of this phenomenon is very important to quantify these effects. In the present study, using Sentinel-5 and MODIS products for 2020 in the Google Earth system, have shown despite month-to-month fluctuations, has an increasing trend and the incremental changes of fine dust are more considerable in May and June and their dispersal are greater in the northern and northwestern cities in the basin of the Urmia Lake. The distribution of fine dust in the cities of Tabriz, Shabestar, Urmia, Mahabad, Khoy, Salmas, and Tabak, shows heavy concentrations of the dusts, and exhibits destructive impacts on the economy (60.80%) in December and also has adverse effects on the health index. And most of the referrals of people suffering from diseases caused by fine dust in December is (47.50%). The two indicators of agriculture and migration are closely related and the most effects of salt dust for these two indicators showed (15%) in November and (40.51%) in July, respectively. According to the results, it can be said that these dust particles have the greatest impact on the indices (migration, economy, agriculture, and health) of urban regions of the basin of Urmia Lake from 2019 to 2020. The results of this study can directly contribute to the decision-making process by the local authorities to understand the environmental problems across urban and rural areas of Urmia lakes which is at considerable risk.
由于乌尔米娅湖部分地区的逐渐干燥,形成了几个盐尘中心,影响了农业、经济、公共卫生,并导致乌尔米娅湖地区的人口迁移。因此,了解这一现象的时空分布对于量化这些影响非常重要。在本研究中,在Google Earth系统中使用Sentinel-5和MODIS产品对2020年的观测结果显示,尽管逐月波动,但仍有增加的趋势,5月和6月在乌尔米湖流域北部和西北部城市的微尘增量变化更大,扩散更大。大不里士、沙贝斯达、乌尔米亚、马哈巴德、霍伊、萨尔马斯、塔巴克等城市的微细颗粒物浓度较高,在12月份对经济造成破坏性影响(60.80%),对健康指数也产生不利影响。12月份因微细颗粒物引起疾病的患者中,大部分是(47.50%)。农业和移民两个指标密切相关,盐尘对这两个指标的影响最大,分别在11月(15%)和7月(40.51%)。结果表明,2019 - 2020年,沙尘颗粒对乌尔米亚湖盆地城区人口迁移、经济、农业、健康等指标的影响最大。本研究的结果可以直接有助于地方当局的决策过程,以了解乌尔米娅湖的城市和农村地区的环境问题,这是相当大的风险。
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引用次数: 4
INSPECTION OF DRINKING WATER CALIBRE TRAIT OF BHIMBER AZAD KASHMIR, PAKISTAN 巴基斯坦比姆伯阿扎德克什米尔地区饮用水口径特征检验
Pub Date : 2021-07-01 DOI: 10.26480/jcleanwas.02.2021.68.72
Raja Asim Zeb, Raja Shoaib Zahoor, Dr. Ariba Farooq
The article summarizes the outcomes of abundant physicochemical equity of drinking water and pathogenic microorganisms conducted for drinking water trait condition of Bhimber Azad Kashmir. Drinking water quality index (DWQI) based on TDS, pH, Ca+2, Na+, was used to assess the drinking water quality. Being unnerves increase in the population and hasty commercial construction, drinking water quality is highly affected constantly in Bhimber Azad Kashmir. About 18% of whole population of Bhimber Azad Kashmir has approach to secure drinking water. The resting 80% of population is enforced to use perlious drinking water due to the insufficiency of safe and healthful drinking water resources. The principal origin of contamination is microbial contamination, turbidity and Na+ which is widely discharge into water system supplies. Anthropogenic exercise cause bone diseases that create about 60-70% of all diseases are answerable. This article emphasizes the drinking water quality, contagion sources and controlling mechanism of water in Bhimber Azad Kashmir. There is an immediate commitment to take precautionary measures and treatment technologies to control on these depressive water contamination statistics of Bhimber Azad Kashmir.
本文综述了对Bhimber Azad Kashmir地区饮用水特征条件进行的丰富的饮用水理化公平和病原微生物的研究结果。采用基于TDS、pH、Ca+2、Na+的生活饮用水水质指数(DWQI)评价生活饮用水水质。由于人口的不安和匆忙的商业建设,Bhimber Azad Kashmir地区的饮用水质量不断受到严重影响。比姆伯阿扎德克什米尔约18%的人口有办法获得安全饮用水。由于缺乏安全卫生的饮用水资源,其余80%的人口被迫使用危险的饮用水。污染的主要来源是微生物污染、浊度和Na+,它们被广泛地排放到供水系统中。人为运动引起的骨骼疾病占所有可回答疾病的60-70%。本文着重介绍了比姆伯-阿扎德-克什米尔地区的饮用水水质、传染源及控制机制。立即承诺采取预防措施和处理技术,以控制比姆伯阿扎德克什米尔这些令人沮丧的水污染统计数字。
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引用次数: 0
ANALYSIS OF WATER QUALITY DETERIORATION IN NWORIE RIVER, OWERRI- IMO STATE, SOUTHEAST, NIGERIA 尼日利亚东南部奥韦里-莫莫州nworie河水质恶化分析
Pub Date : 2021-07-01 DOI: 10.26480/jcleanwas.02.2021.58.61
Nwosu T. V, Nwaiwu C.J, Egboka N.T
Due to indiscriminate activities of man through sand excavation, sand mining and illegal waste disposal within the watershed the study evaluated the effect of these activities on selected water quality parameters of Nworie River in Owerri -Imo State, Southeast Nigeria. The study area was divided into Upstream, Midstream and downstream. The river was sampled and the raw data from water sampling were subjected to laboratory analysis; results obtained were matched with standards. The results showed that the average pH of the river was 7.4; upstream and midstream had higher pH values than the downstream with low pH and these were within the permissible limit. Biological oxygen Demand (BOD) of the river were 75mg/l, 60mg/l and 56mg/l at the Upstream, Midstream and downstream with an average value of 64 mg/l . The river had a mean turbidity value of 76NTU and mean Total Dissolved solids (TDS) value of 272mg/l which were above the permissible limit. Calcium (Ca2+) did not exceed the standard limit while magnesium exceeded the standard limit by 68% at the Upstream. Nworie river had mean water conductivity value of 93S/cm; water conductivity at the Midstream and downstream were within the permissible limits while the Upstream had 6% increase above the acceptable limit. It was observed from this study that Nworie river exhibited three different colours of light-green, dark-green and brownish-muddy colour respectively at the Upstream, Midstream and Downstream which could be attributed to the level of erosional deposits and sediment loads from the degraded watershed. Further degradation of the watershed should be avoided by practising good soil conservation measures, ensuring that indiscriminate activities of inhabitants of the area are stopped and since environmental balance, land degradation, water management and food security are strongly linked, each must be addressed in the context of the other to have a measurable impact to the society.
由于人类在流域内不分青红皂白地进行采砂、采砂和非法废物处置,本研究评估了这些活动对尼日利亚东南部奥韦里-伊莫州Nworie河选定水质参数的影响。研究区划分为上游、中游和下游。对河流进行了采样,并对水样的原始数据进行了实验室分析;所得结果与标准相符。结果表明:河流平均pH值为7.4;上游和中游pH值高于下游,pH值较低,但均在允许范围内。上游、中游和下游生物需氧量(BOD)分别为75mg/l、60mg/l和56mg/l,平均值为64mg /l。平均浊度值为76NTU,平均总溶解固溶体(TDS)值为272mg/l,均超过允许限值。在上游,钙(Ca2+)未超过标准限值,而镁超过标准限值68%。Nworie河平均水电导率为93S/cm;中下游水电导率均在允许范围内,上游水电导率超出允许范围6%。研究发现,Nworie河在上游、中游和下游分别呈现出浅绿色、深绿色和棕泥色三种不同的颜色,这可能是由于侵蚀沉积物的水平和退化流域的泥沙负荷所致。应通过采取良好的土壤保持措施来避免分水岭的进一步退化,确保停止该地区居民不分皂白的活动,由于环境平衡、土地退化、水管理和粮食安全密切相关,必须在彼此的背景下加以处理,以便对社会产生可衡量的影响。
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引用次数: 0
FACILE FABRICATION OF COPPER OXIDE NANOPARTICLES FOR ANTIMICROBIAL ACTIVITY 具有抗菌活性的氧化铜纳米颗粒的制备
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.27.30
M. Haque, Md. Kaium Hossain, Md. Ashraful Islam Molla, M. Sarker, Shaikat Chandra Dey, M. Ashaduzzaman
Copper Oxide nanoparticles (NPs) have shown great acceptance in the antimicrobial application owing to their low toxicity and high surface to charge ratio. In this study, copper oxide NPs (represented as S-1, S-2 and S-3) were prepared by a simple and cost-effective thermal approach in three different environments. Fabricated NPs were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible (UV-Vis) spectroscopy and Fourier transform infrared spectroscopy (FTIR) technique. The XRD patterns revealed that the synthesized S-2 was of pure Cu2O phase while S-3 was composed of monoclinic CuO with a small quantity of Cu2O. More importantly, synthesized copper oxide NPs were used to evaluate the antimicrobial activity against three types of gram-negative bacteria namely Salmonella typhi, SK4 and E. coli (two strains). Although the NPs produced from the S-1 approach did not show encouraging results, the copper oxide NPs from S-2 and S-3 had shown enhanced antimicrobial activity. The successful antimicrobial activity of S-2 and S-3 can be related to the release of Cu+ and Cu2+ ions into the surrounding environment, which is responsible for the breaking of the cell wall membrane and ultimately causes bacterial cell disruption. The synthesized copper oxide NPs via thermal approach will be good candidates for biomedical applications.
氧化铜纳米颗粒因其低毒性和高表面电荷比而在抗菌领域得到广泛应用。在本研究中,采用简单而经济的热方法在三种不同的环境下制备了氧化铜NPs(代表为S-1, S-2和S-3)。利用x射线衍射(XRD)、扫描电镜(SEM)、紫外可见光谱(UV-Vis)和傅里叶变换红外光谱(FTIR)技术对制备的纳米粒子进行了表征。XRD谱图表明,合成的S-2为纯Cu2O相,S-3为单斜CuO相,含有少量Cu2O。更重要的是,利用合成的氧化铜NPs对三种革兰氏阴性菌即伤寒沙门菌、SK4和大肠杆菌(两株)的抑菌活性进行了评价。虽然S-1方法产生的NPs没有显示出令人鼓舞的结果,但S-2和S-3方法产生的氧化铜NPs显示出增强的抗菌活性。S-2和S-3的成功抗菌活性可能与Cu+和Cu2+离子释放到周围环境有关,这些离子负责细胞壁膜的破裂,最终导致细菌细胞破坏。通过热法合成的氧化铜NPs具有良好的生物医学应用前景。
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引用次数: 4
ISOLATION AND MORPHOLOGICAL IDENTIFICATION OF SOIL FUNGI FROM AGRICULTURAL SOIL IN KUANTAN 关丹农业土壤真菌的分离与形态鉴定
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.31.34
Nur Sabrina Ahmad Azmi, Asma Adiba Hisham
Soil fungi possess a great number of potential benefits that could be applied in various fields. They are well-known for acting as plant-growth promoter, biocontrol agent of plant diseases and involves in bioremediation. In this study, the fungi were isolated from used agricultural soil in Glasshouse and Nursery Complex (GNC), International Islamic University Malaysia, Kuantan, Pahang using serial dilution and plating techniques. Around 10 isolates of soil fungi were successfully isolated and the identification of all isolates were based on their cultural and morphological characteristics. The fungi were discovered to be from genus Cladorrhinum, Penicillium, Paecilomyces and Aspergillus.
土壤真菌具有许多潜在的效益,可以应用于各个领域。它们作为植物生长促进剂、植物病害生物防治剂和生物修复剂而闻名。本研究从马来西亚国际伊斯兰大学(International Islamic University Malaysia,简称GNC)、关丹、彭亨的温室和苗圃综合设施(Glasshouse and Nursery Complex,简称GNC)的农业用过土壤中,采用连续稀释和电镀技术分离到真菌。成功分离了10株土壤真菌,并根据其培养和形态特征对其进行了鉴定。这些真菌分别属于Cladorrhinum、Penicillium、Paecilomyces和Aspergillus。
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引用次数: 1
CONTAMINATION ASSESSMENT OF WATER RESOURCES AROUND WASTE DUMPSITES IN ABAKALIKI, NIGERIA; A MINI REVIEW 尼日利亚abakaliki垃圾场周围水资源污染评估;一个小回顾
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.17.20
Ruth Oghenerukevwe Ulakpa Eyankware, M. Eyankware
Monitoring of water quality is needed from time to time to avoid outbreak of severe water borne disease. This article review previous literature on impact of waste dumpsites on water quality around Abakaliki and its environs, with emphasis on active and non-active dumpsite. Findings from reviewed article revealed that waste dumpsite sites close to water bodies or ways has altered water quality in Abakaliki urban, while groundwater is contaminated through leaching process. This groundwater contamination occurs mostly when waste dumpsite is sited close to borehole or hand-dug well. Based on reviewed literature it is advised that waste dumpsite should be sited distance away from residential buildings as the state government should also endeavor to continually monitor water quality for domestic use to avoid outbreak of various kind of water related disease.
需要不时监测水质,以避免爆发严重的水传播疾病。本文综述了以往有关垃圾倾倒场对Abakaliki及其周边地区水质影响的文献,重点介绍了活动垃圾倾倒场和非活动垃圾倾倒场。综述文章的研究结果表明,靠近水体的垃圾场或方式改变了Abakaliki城市的水质,而地下水则通过浸出过程受到污染。这种地下水污染主要发生在靠近钻孔或手挖井的垃圾场。根据文献综述,建议垃圾场选址应远离居民楼,同时州政府也应努力持续监测生活用水的水质,以避免各种与水有关的疾病的爆发。
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引用次数: 3
CYTOKININ AND GIBBERELLIC ACID ALLEVIATE THE EFFECT OF WATERLOGGING IN MUNGBEAN (VIGNA RADIATA L. WILCZEK) 细胞分裂素和赤霉素缓解绿豆涝渍效应的研究
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.21.26
M. R. Islam, M. Hasan, N. Akter, S. Akhtar
Recently, waterlogging damage of mungbean is most common in many mungbean growing areas of the world. The exogenous application of phytohormones cytokinin (CK) and gibberellic acid (GA) could be an effective way of managing mungbean under waterlogging stress. Therefore, we applied different levels of CK and GA at the onset of waterlogging and ten days after waterlogging, and the results were observed in waterlogged plants as compared to control. The CK and GA application showed much improvement in depressed morpho-physiological and yield-related traits and seed yield. However, the responses varied depending on the types and doses of CK and GA. The plant height and the number of leaves were higher in GA-applied plants than CK-treated plants. The GA responded more in shoot growth, whereas CK in root development under waterlogged situations. The application of CK at 150 mg/L displayed the highest 33.9% yield advantage. It reveals that exogenous CK could be a good management practice in areas prone to waterlogging stress for attaining better yield in mungbean.
近年来,绿豆内涝灾害在世界上许多绿豆种植区最为普遍。外源施用植物激素细胞分裂素(CK)和赤霉素(GA)可能是治理绿豆涝渍胁迫的有效途径。因此,我们在涝渍开始和涝渍后10天施用不同水平的CK和GA,并在涝渍植株上观察到与对照相比的结果。对照和GA处理显著改善了水稻的形态生理性状和产量性状,提高了籽粒产量。然而,根据CK和GA的类型和剂量,反应不同。ga处理植株的株高和叶片数均高于ck处理植株。涝渍条件下,GA对茎部生长的响应大于CK对根系发育的响应。施用150 mg/L CK产量优势最高,达33.9%。结果表明,外源CK可作为涝渍地区绿豆高产的一种较好的管理措施。
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引用次数: 4
ANTIBACTERIAL ACTIVITY OF BENZOYL AND HALOBENZOYL THIOUREA BEARING α- AND β-ALANINE 含α-和β-丙氨酸的苯甲酰和卤苯甲酰硫脲的抗菌活性
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.35.38
M. Ibrahim, A. Husin, N. Ngah, N. Zakaria
Antibacterial activity of synthetically synthesized benzoyl thiourea and halobenzoyl thiourea bearing α-alanine and β-alanine compounds were investigated against gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis) and gram-negative bacteria (Esherichia coli). The study of antibacterial activity of the compounds was conducted by using the disc diffusion method and minimal inhibitory concentration (MIC) as well as minimal bactericidal concentration (MBC). The results indicate that 4-fluorobenzoylthiourea α-alanine, benzoylthiourea α-alanine, 4-fluorobenzoylthiourea β-alanine, 4-chlorobenzoylthiourea β-alanine, 4-bromobenzoylthiourea β-alanine, and benzoylthiourea β-alanine possess weak to strong antibacterial activity on all of tested bacteria. The strongest antibacterial activity was found in the 4-fluorobenzoylthiourea α-alanine, whereas the weakest antibacterial activity was exhibited in 4-fluorobenzoylthiourea β-alanine. S. aureus was found the most susceptible toward these thiourea derivatives, indicating bactericidal activity against the bacteria.
研究了合成的含α-丙氨酸和β-丙氨酸的苯甲酰硫脲和卤苯甲酰硫脲对革兰氏阳性菌(金黄色葡萄球菌和枯草芽孢杆菌)和革兰氏阴性菌(大肠杆菌)的抑菌活性。采用圆盘扩散法和最小抑菌浓度(MIC)和最小杀菌浓度(MBC)对化合物的抑菌活性进行了研究。结果表明,4-氟苯甲酰硫脲α-丙氨酸、苯甲酰硫脲α-丙氨酸、4-氟苯甲酰硫脲β-丙氨酸、4-氯苯甲酰硫脲β-丙氨酸、4-溴苯甲酰硫脲β-丙氨酸和苯甲酰硫脲β-丙氨酸对所有被试细菌均具有弱至强的抗菌活性。4-氟苯甲酰硫脲α-丙氨酸的抑菌活性最强,4-氟苯甲酰硫脲β-丙氨酸的抑菌活性最弱。发现金黄色葡萄球菌对这些硫脲衍生物最敏感,表明对细菌有杀菌作用。
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引用次数: 0
HEALTH RISK ASSESSMENT AND HEAVY METAL CONTAMINATION LEVELS IN GREEN CHILLI DUE TO UNTREATED WASTEWATER IRRIGATION IN CHAK JHUMRA, FAISALABAD 费萨拉巴德chak jhumra地区未经处理的废水灌溉导致的绿辣椒健康风险评估和重金属污染水平
Pub Date : 2021-03-31 DOI: 10.26480/jcleanwas.01.2021.05.09
M. Akram, H. Rashid, A. Nasir, Kiran Khursheed
To address the global issue of water scarcity, untreated wastewater irrigation has become a common practice in the developing countries to meet the emerging demand of irrigation water. It is a common practice in Pakistan as well to apply municipal wastewater for irrigation purposes, which is carrying high concentrations of heavy metals originating from industrial sources. The research was conducted in Chak Jhumra, Faisalabad, Pakistan to check the effect on health due to untreated wastewater. The purpose of this research work was to find out the concentrations of hazardous elements present in the wastewater and conduct health risk assessment of utilizing the contaminated vegetables, being grown on untreated effluent. The main parameters to be investigated for groundwater, wastewater, soil and vegetables were EC, TSS, SAR and Heavy metals like (Ni, Zn, Pb, and Cu). Concentrations of the targeted heavy metals were determined in these media and health risk assessment was conducted. It was finally concluded that the soil properties were greatly influenced by the supply of this wastewater. Zinc was found above safe limit, Cu was found within safe limit, Ni and Pb were above critical limits in all sites. Groundwater was found suitable and its values were within safe limits. Health risk assessment has also exhibited significant impact of the concentrations of heavy metals in the vegetables being utilized by the common man.
为了解决全球水资源短缺问题,未经处理的废水灌溉已成为发展中国家的一种普遍做法,以满足新兴的灌溉用水需求。在巴基斯坦,将城市废水用于灌溉也是一种常见的做法,这些废水中含有高浓度的来自工业来源的重金属。这项研究是在巴基斯坦费萨拉巴德的Chak Jhumra进行的,目的是检查未经处理的废水对健康的影响。这项研究工作的目的是找出废水中存在的有害元素的浓度,并对利用在未经处理的废水上种植的受污染蔬菜进行健康风险评估。地下水、废水、土壤和蔬菜的主要研究参数为EC、TSS、SAR和重金属(Ni、Zn、Pb、Cu)。确定了这些介质中目标重金属的浓度,并进行了健康风险评估。最后得出结论,该废水的供应对土壤性质有很大影响。锌超标,铜超标,镍、铅超标。地下水被认为是合适的,其值在安全范围内。健康风险评估也显示了普通人食用的蔬菜中重金属浓度的显著影响。
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引用次数: 2
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