High Electrical Conductivity Values Research Articles

Evaluating Land Suitability for Wheat Cultivation Criteria Analysis Fuzzy-AHP and Geospatial Techniques in Northern Basrah Governorate.

Land suitability assessment is essential for planned land management strategies aimed at preserving soil and increasing productivity while ensuring sustainable agricultural production. Land degradation resulting from poor land management and fallowing practices typically leads to low land productivity in Iraq. To maintain agricultural productivity in the targeted area, agricultural requirements must align with available resources through land suitability analysis. In the northern region of Basrah Governorate in Iraq, the study focused on integrating GIS-based land suitability analysis with the fuzzy-analytical hierarchy process (F-AHP) approach. The analysis revealed varying suitability categories throughout the study area, with the largest proportion of unsuitable areas found in category N2, covering 31,202.36 hectares (37.76%), and category N1, currently unsuitable, covering an area of 19,956.24 hectares (24.15%). On the other hand, the moderately suitable category (S3) covered 8,297.26 hectares (10.04%), while the moderately suitable category (S2) covered 23,177.79 hectares (28.05%) of the total study area. No highly suitable lands were identified. The key determining factors for the suitability of lands for wheat cultivation were high values of electrical conductivity, carbonate minerals, bulk density, and low organic carbon content. Most agricultural lands are being used in a manner that contradicts their suitable potentials in the study area. Therefore, the pattern of agricultural land use needs to be adjusted based on their current potentials to reduce soil degradation.

Enhanced thermoelectric properties and thermal stability of Cu1.8S-rGO nanocomposite by low energy carrier filtering effect

Cu1.8S has received a lot of interest as a prospective thermoelectric material with the best performance and abundant resources. While high charge carrier concentration contributes to the high electrical conductivity and power factor values, grain-boundary engineering is required to improve the phonon scattering and thermal stability of Cu1.8S. We used a simple process that combined nanoparticles via mechanical alloying and post-annealing to introduce the reduced graphene oxide (rGO) heterointerface into the Cu1.8S matrix. A significant enhancement of power factor has been realized that the highest power factor is 721 μWm−1 K−2 at 550 K in the composite Cu1.8S/rGO with 10 % rGO, which is higher than the pure Cu1.8S. Furthermore, following four cycles of testing from ambient temperature to 550 K, the composite demonstrated excellent repeatability of power factor, confirming its practical application potential.

Thermoelectric Properties of 2D Sn2SSe$Sn_{2}SSe$ Monolayer

Abstract2D Janus materials have drawn great interest in recent years due to their energy applications including thermoelectricity (TE) and photocatalysis. In this work, density functional theory and Boltzmann transport equations are coupled to look into the thermoelectric properties of monolayer. is an indirect bandgap semiconductor with a bandgap of 0.88 eV. This monolayer is chemically as well as dynamically stable. The thermoelectric parameters such as the Seebeck coefficient, electrical conductivity, and thermal conductivity due to electrons and phonons are explored along the zigzag and armchair orientation. The high value of electrical conductivity and low‐value lattice thermal conductivity along the zigzag orientation yields the high value of ZT = 1.93.

Effect of microcarbon particle size and dispersion on the electrical conductivity of LLDPE-carbon composite

This experimental research aimed to develop a conductive polymer composite (CPC) material for electromechanical devices. The composite was made by incorporating conductive micro carbon derived from rice husks into a Linear Low-Density Polyethylene (LLDPE) polymer matrix using hot compaction. Variations of filler composition were used, with carbon loading of 50%, 45%, and 40%, and mesh sizes of #150, #200, and #250. The experimental results showed that particle size variations did not significantly affect composite density, but higher mesh selection improved filler dispersion within the matrix, resulting in higher electrical conductivity values. The optimal conductivity value of 9.43E-04 S/cm was achieved with a micro-carbon composition of 50% loading. However, decreasing micro carbon loading had a more significant impact on reducing electrical conductivity values.

First-principles investigations on the structural, optoelectronic, mechanical and transport properties of new stable lead-free double perovskites Cs2BB′I6 (B = Ag/Rb, B′ = Bi/Ga) halides

Lead-free perovskite halides offer a promising alternative due to the successful replacement of lead-based perovskites in various applications. Density functional theory simulations have been utilized to ascertain the physical attributes of lead-free Cs2BB′I6 (B = Ag/Rb, B′=Bi/Ga) double perovskites in this work. The well-organized modified Becke-Johnson (mBJ) is employed to define exchange–correlation potential. The calculated negative formation energy values, structural optimization, along with evaluation of the tolerance factor support the stability of compounds. To judge the structural stability, several mechanical parameters are determined. For Cs2AgBiI6, a bandgap of 1.46 eV and 1.85 eV for Cs2RbGaI6 are achieved. The total and individual electronic states’ influence is also calculated. The optical absorption is prominent in the visible and UV regions for both perovskites depicting their potential use in optoelectronics. We also have an insight into the temperature-dependent transport characteristics of Cs2AgBiI6 and Cs2RbGaI6. The crucial ZT factor exhibits values of 0.78 and 0.75 for Cs2AgBiI6 and Cs2RbGaI6 at 800 K. The high Seebeck, ZT and electrical conductivity values also stand in the favor of their potential use in green technology.

Double perovskite Sr2FeMo0.6Mg0.25Ga0.15O6−δ as high-performance fuel electrode for reversible solid oxide cell

B-site double perovskite Sr2FeMo0.6Mg0.25Ga0.15O6−δ (SFMMG) is reported as a promising fuel electrode for reversible solid oxide cell. The SFMMG material shows excellent structural stability in both oxidizing and reducing atmospheres, possesses an appropriate thermal expansion coefficient, as well as excellent redox cycle stability. The result confirms that the Mg2+ and Ga3+ tend to occupy the B-site while some Fe ions moves to the B′-site, creating lots of FeB–O–FeB’ anti-site defects in the lattice. As a result, a high electrical conductivity value of 36.0 S cm−1 is obtained at 800 °C in H2. Besides, the SFMMG electrode exhibits good catalytic activity toward hydrogen oxidation/evolution reaction, as confirmed by the low polarization resistance of 0.237 Ω cm2 at 800 °C in H2. With SFMMG as the fuel electrode, the La0.8Sr0.2Ga0.8Mg0.2O3-δ (300 μm)-supported single cell exhibits a peak power density of 1073 mW cm−2 in fuel cell mode and an electrolysis current density of 1192 mA cm−2 in electrolysis cell mode at 900 °C. In addition, the single cell shows stable performance during 100 h operation under 0.75 V at 800 °C.

Groundwater Geochemical Investigation and Quality Assessment for Drinking and Irrigation Uses in Sohagpur Coalfield, Madhya Pradesh, India

The present investigation aims to assess the processes controlling the composition of groundwater in the Sohagpur coalfield and its quality concerning drinking and irrigation purposes using hydrogeochemical and statistical approaches, water quality indices, and a geographic information system (GIS). Twenty-seven groundwater samples collected from different sites were analysed for electrical conductivity (EC), pH, turbidity, major anions and cations, total dissolved solids (TDS), and total hardness (TH). The study results show that the pH of samples varied from 5.97 to 8.26, suggesting the acidic to slightly alkaline nature of the water samples. The TDS ranged from 265 to 1450 mg/L with 78% of the samples being in the freshwater category. The Ca2+-Mg2+-SO4 2− and Ca2+-Mg2+-HCO3 − are dominant hydrogeochemical facies in the Sohagpur coalfield. The hydrogeochemical and statistical methods show that the groundwater chemistry of the Sohagpur coalfield is primarily controlled by the dissolution and weathering of minerals and secondarily due to the influence of anthropogenic activities (i.e., agricultural practices, sewage, and animal waste discharge). In the majority of the groundwater samples, concentrations of TH, TDS, turbidity, and SO4 2− exceeded the Bureau of Indian Standards (BIS) drinking acceptable limits and suggested that water is unsuitable for direct consumption. Moreover, the estimated water quality index (WQI) indicated that 52% of the samples (especially from the Dhanpuri and Amlai areas) belong to poor to unfit water categories. High values of EC in 56% of the samples and magnesium hazard (MH) at two sites restrict the irrigation suitability at these locations.

New model of long-term changes in spatiotemporal patterns of water quality across Shatt-Al-Arab River by applying GIS technique, from 1976 to 2020

PurposeUsing a combination of the geographical information system (GIS) and the Canadian water quality index (WQI), the current study sought to provide a long-term general assessment of the water quality of the Shatt Al-Arab River (SAAR), focusing on its suitability for living organisms. Likewise, SPSS statistics was used to develop a nonlinear WQI regression model for the study area.Design/methodology/approachThe study required four decades of data collection on some environmental characteristics of river water. After that, calculate the WQI and conduct the spatial analysis. Eight variables in total, including water temperature, dissolved oxygen, potential hydrogen ions, electrical conductivity (EC), biological oxygen demand, turbidity, nitrate and phosphate, were chosen to calculate the WQI.FindingsThroughout the study periods, the WQI values varied from 55.2 to 79.83, falling into the categories of four (marginal) and three (fair), with the sixth period (2007–2008) showing the most decline. The present research demonstrated that the high concentration of phosphates, the high EC values, and minor changes in the other environmental factors are the major causes of the decline in water quality. The variations in ecological variables' overlap are a senior contributor to changes in water quality in general. Notably, using GIS in conjunction with the WQI has shown to be very effective in reducing the time and effort spent on investigating water quality while obtaining precise findings and information at the lowest possible expense. Calibration and validation of the developed model showed that this model had a perfect estimate of the WQI value. Due to its flexibility and impartiality, this study recommends using the proposed model to estimate and predict the WQI in the study area.Originality/valueEven though the water quality of the SAAR has been the subject of numerous studies, this is the only long-term investigation that has been done to evaluate and predict its water quality.

Assessment of salt‐affected soil in Indo‐Gangetic Plain of Uttar Pradesh and prediction using regression model

AbstractIn the present study, multiple sites in the Indo‐Gangetic Plain (IGP) were examined, and most of the sites were found to be non‐saline, with electrical conductivity (EC) values below 4.0 dSm−1. The highest value of EC 8.5 dSm−1 was reported for samples collected from JAN‐2, which, followed by site RBL‐3, also shows a high value of EC 6.5 dSm−1. The highest CEC (cmolkg−1) was reported in samples collected from site JAN‐1 (8.4), JAN‐2 (8.2), and JAN‐3 (8.21), and the lowest at RBL‐2 (3.99). The highest exchangeable sodium percentage (ESP) value of 34.07% was observed at RBL‐3, indicating a potential salinity risk associated with elevated sodium contents. The analysis showed that salt was present at all study sites, and there were strong correlations between the variables examined. The relationship between measured ESP and predicted ESP shows a strong correlation with an r2 value of 0.91, indicating the applicability of ESP–sodium adsorption ratio (SAR). Paired samples t‐test results p‐value = 0.27 indicated no significant difference (p > 0.05) between the soil ESP values predicted by the soil ESP–SAR model and those obtained through laboratory testing. The statistical results of the study suggested that the soil ESP–SAR model was reliable for predicting ESP values. The soil ESP differences between the two methods were normally distributed, and the 95% limits of agreement were calculated as −7.79 and 5.55. The mean difference between the ESP–SAR model and the “Measured” method was calculated as 2.24, representing the average deviation between the two. The study presents the ESP–SAR model as a cost‐effective and efficient method for estimating soil ESP and assessing soil salinity. By analyzing soil properties and validating the model, it provides valuable insights for policymakers and stakeholders in combating agricultural land degradation in the IGP. The novelty lies in its comprehensive evaluation of soil salinity indices, reinforcing the applicability of the ESP–SAR model for future research and agricultural management.

Evaluation of thermoelectric properties of hybrid polyaniline nanocomposites incorporated with graphene oxide and zinc oxide with different morphologies

Thermoelectric materials have been the object of interest in energy demand, given their potential for heat capture and the possibility of conversion into electricity. Among the possible thermoelectric materials, polymeric ones have been investigated because they are durable, non-toxic, and reproducible. This work used polyaniline (PANI), a good conductivity polymer, as a matrix to prepare hybrid nanocomposites. Nanoparticles were incorporated into the PANI matrix via solution with m-cresol. Two types of novel nanoparticles were used: zinc oxide (ZnO) synthesized with morphologies of nanoneedles (n-ZnO) and nanoflowers (f-ZnO). Hybrids of graphene oxide (GO) and ZnO with these morphologies (GO/n–ZnO and GO/f–ZnO) were incorporated into the hybrid PANI nanocomposites. Thermal stability was evaluated by thermogravimetric analysis (TGA). An improvement in thermal stability was observed with increasing GO/ZnO nanoparticles, as well as a higher degradation of the polymer matrix for higher levels of ZnO nanoparticles. The absorption bands of nanoparticles and PANI were observed by Fourier infrared spectroscopy (FT-IR). The corresponding characteristic bands of the functional groups were well evidenced, reflecting the success in synthesizing thermoelectric nanocomposites. Those with hybrid nanoparticles (GO/ZnO) had higher values of electrical conductivity (10.8 and 10.5 S cm−1), while those with only ZnO nanoparticles had higher Seebeck coefficient values (166.4 and 67.4 μV K−1). The only one with the highest thermoelectric force factor was PANI/GO/n-ZnO, with a value of 14.79 μW m−1 K−2, which is 49.3 times greater than the pure polymer and 1.5 times greater than the PANI/n-ZnO nanocomposite.

Application of strongly charged porous additives to enhance dewatering of clay dispersions

The main mechanisms of dewatering of model dispersions based on natural kaolin using external pressure and electric field have been considered. The factors which affect the studied process were analyzed, with a primary focus on the control of the electrokinetic potential of dispersion particles through varying the pH value of the pore solution. Optimal dewatering conditions for single-component model dispersions were selected. To intensify moisture removal, it is proposed to use an additional dispersion component, namely: charged particles in the form of bulk diaphragms or their mix with the main dispersion. Characteristics of single- and two-component dispersion, as well as the mechanisms which govern the impact of an additional dispersed component on dewatering, were analyzed. Conditions were determined under which the use of porous charged additives could enhance both the hydrodynamic and electroosmotic components of liquid removal. Experimental studies of dewatering were performed using bulk diaphragms formed from porous materials of different nature and size (coal and sand). Alternatively, highly charged electroconductive particles of finely dispersed coal were directly introduced into the model dispersion. The obtained results confirmed the validity of the concept about a significant intensification of dewatering when using additives that not only increase the porosity of the disperse system but also exhibit high values of electrical conductivity and electrokinetic potential, which greatly enhance the electroosmotic component of water removal.

A Study on Syrup of Juniperus excelsa Cones Grown in Türkiye

For beverage products, some analytical tests are conducted prior to packaging and distribution. However, physicochemical properties may affect product quality adversely in a number of ways. Liquids with high dissolved solids may impact inferior palatability and may induce an unfavorable physiological reaction in the transient consumer. In this study, it was to evaluate some certain physicochemical properties of syrup which was made from Juniperus excelsa’s berries collected from four different geographical locations managed by the Regional Directorate of Forestry authorities in Turkiye. Considerable physicochemical variations were found among Juniperus excelsa’s berry-based syrup products. The lowest value of pH: 5.46 was found with syrup prepared from Yalvaç-Isparta, (sample C), followed by pH: 5.75 from Hisarcık-Kütahya, (sample D), pH: 5.80 Ağlasun-Burdur (sample B), and pH: 6.32 Gazipaşa-Antalya (sample A), respectively. However, syrup prepared from sample C showed the highest values of electrical conductivity (EC), total dissolved solids (TDS), sugar content (Brix), and also distinguished from the others by highest oxidation-reduction potential (ORP). It was found to be 3136.1 uS/cm for EC, 1568 ppm for TDS, 1.90 °Bx for Brix and 188.6 mV for ORP. However, the highest turbidity value of 67.6 NTU was found with sample D while the lowest with sample A (39 NTU). These values may be good criteria for the botanical origin of syrup and therefore, it may be used in syrups prepared from Juniperus excelsa’s berries.

Efficacy of bokashi-composting methods and quality assessment of organic fertilizers on spinach (Spinacia oleracea L.)

Raw materials of corn stalk and Japanese watercress at four volumetric ratios of 4:1, 3:1, 2:1, 1:2 were composted for 40 days using compost (PP compost) and bokashi (PP bokashi) methods. The quality of organic fertilizer products as solid (RComp) and liquid (LComp & LBoka) was analyzed for physico-chemical properties and initially evaluated for spinach (Spinacia oleracea L.) in a pot study. The single-factor experiment was arranged in a completely randomized design with seven treatments and three replications. The treatments differed in application rates, types and dilution of liquid organic fertilizers. The PP compost had a thermophilic phase (t > 40oC) lasting for 15 days, which was three times longer than the PP bokashi. Accordingly, RComp(2:1) had a high EC (electrical conductivity) value (3.8 mS/cm) and organic matter (77.7%), and macronutrient concentrations of total N, available phosphorus and potassium were 26.3 g/kg, 13.6 g P2O5/kg and 63.0 g K2O/kg, respectively. Total aerobic plate counts in LComp(2:1) reached 2.5 × 107 CFU/mL. Meanwhile, L Boka(1:2) had an EC value of 19.8 mS/cm, and nutrient concentrations of total N, available phosphorus and potassium were 0.35 g N/kg, 0.09 g P2O5/kg and 9.93 g K2O/kg, respectively. Total humic and fulvic acids in LBoka(1:2) reached 2,300 mg/kg. The results of the trial rate of 0.5 kg RComp/m2 as a single or combined application with LComp(2:1) and LBoka(1:2) at diluted concentrations of total dissolved solids (TDS) 500 ppm gave a similar performance of plant heights, number of leaves, and yields of 1,278.9 - 1,425.7 g/m2, and were significantly different from those of the control treatment (526.8 g/m2).

Temporal variation of the microplastic concentration in a stream that receives discharge from wastewater treatment plants

The temporal variation of the microplastic concentration was studied in the Langueyú stream, which is located in the department of Tandil, in the southeast of the Buenos Aires province in Argentina. This stream receives discharge from the wastewater treatment plants from a medium-sized city. A quantitative analysis of the microplastic concentration was carried out in different samplings, corresponding to different seasons. The study focused on the most contaminated point, located after the discharge of effluents from plants. Higher concentrations of MPs were found in winter (dry season), having approximately 6 times the concentrations found in summer and autumn (wet seasons). However, these differences would not be a direct consequence of the amount precipitation, but rather would be associated with a seasonal variation of human activities, mainly with respect to the type of clothing used in the cold season. The microfibers correspond to around 60–90% of microplastics found. The discharge from the plants causes changes in the parameters of the stream water, such as high electrical conductivity values, and also provide metallic contaminants such as Ca, Zn, and in smaller amounts Pb, Fe, Ni and Cu, which were found adhered to the microplastics and remain in the stream water in high quantities 3 km after the study point. The microplastic concentration presents a linear empirical correlation with the conductivity, and it was found that conductivity measurements would serve as an indicator of the microplastic concentration in the system under study.

Microwave sintering of CaMnO3 thermoelectric perovskites synthesized by modified Pechini method

CaMnO3 perovskites are promising n-type metallic oxides for thermoelectric materials due to their high Seebeck coefficient, moderate electrical conductivity, and low thermal conductivity. The study analyzes samples obtained from powders synthesized by modified Pechini method and sintered by microwave irradiation at different temperatures and soaking times. In the sintered samples, CaMnO3 was the unique crystalline phase formed. Structural orthorhombicity decreased with increasing sintering soaking times. For ceramics sintered at 1573 K, the grain sizes were 0.46 µm, 1.98 µm and 3.03 μm for ceramics sintered without soaking time, for 15 min and for 30 min, respectively. The highest electrical conductivity values were obtained from CaMnO3 ceramic sintered at 1573 K for 15 min. The CaMnO3 perovskite sintered at 1573 K without soaking time exhibited the lowest thermal conductivity and the highest ZT and η values of about 0.016 and 0.48 %, respectively, making it the most promising for thermoelectric applications.

A computational approach to correlate the physical attributes of lead-free Rb2XRhF6 (X= Li, Ag) double perovskite halides for optoelectronics and renewable energy applications

The potential of perovskite halides revolutionized the field of optoelectronics and energy conversion. In the present work, the physical characteristics of Rb2XRhF6 (X = Li, Ag) have been theoretically studied using FP-LAPW method based on DFT. Exchange correlation effects of modified Becke Johnson (mBJ) have also been applied to compute the respective physical characteristics. The stability of both perovskites is justified by volume optimization curves and associated formation energies along with the tolerance factor calculations. A direct band-gap of 3.44eV is noted in Rb2LiRhF6 and an indirect band-gap of 2.69eV is achieved in Rb2AgRhF6. A brittle character for Rb2LiRhF6 and ductile nature for Rb2AgRhF6 is obtained. Maximum absorption for both halides in the UV range reveals their potential for laser and UV-protecting devices. High values of electrical conductivity and ZT values for both halides open the possibility to utilize them in thermoelectric devices.

A promising optoelectronic and thermoelectric response of full Heusler Na2TlX (X = Bi, Sb) alloys: a DFT approach

The energy conversion efficiency is one of the attributes that make Heusler alloys an extraordinary candidate for thermoelectric applications. In this paper, we have examined the electronic structure, elastic, optical and transport characteristics of full Heusler Na2TlX (X = Bi, Sb) alloys using DFT. The electronic properties are analyzed by utilizing modified Becke Johnson (mBJ) potential. The negative formation energies and optimization results reveal the stable phases of both alloys. The electronic properties exposed the semiconductor nature of both alloys. The elastic stability is obtained from various elastic parameters. The optical response of these alloys has been studied in depth by evaluating the real and imaginary dielectric functions, optical loss, refractive index and absorption coefficient. Furthermore, the thermoelectric properties are computed, which demonstrate the high electrical conductivity, Seebeck and ZT values for both alloys. The above computed attributes favor the use of studied alloys in green energy and optoelectronic applications.

First-principles investigations of the mechanically and thermodynamically stable potassium-based double perovskites K2TlAsX6 (X = Cl, Br) for optoelectronic and renewable applications

Double perovskites with their significance properties are considered to be promising candidates for an extensive range of applications. Current research work includes the theoretical analysis of the physical characteristics of K2TlAsX6 (X = Cl, Br) double perovskites under the framework of DFT. The precise band structure calculations have been done using modified Becke-Johnson (mBJ) with the inclusion of spin–orbit coupling (SOC) effect. Negative formation energies, structural optimization, positive phonon frequencies and tolerance and octahedral factors support the stability of the perovskites. Elastic parameters, including anisotropic factor, Pugh's and Poisson's ratios, and Cauchy pressure, are calculated to quantify mechanical characteristics. A direct band gap is obtained in both perovskites possessing the values of 2.22 eV and 1.59 eV for K2TlAsCl6 and 1.97 eV and 1.51 eV for K2TlAsBr6 with mBJ and mBJ + SOC, respectively. The compound's optical response is scrutinized, showing the absorption in visible and UV regions. The transport characteristics are also evaluated, showing their high electrical conductivity and ZT values and simultaneously small thermal conductivity values for both perovskites. The optical and transport properties reveal the capacity of K2TlAsCl6 and K2TlAsBr6 to be used in optoelectronic and green energy applications.

Carbides of transition metals: Properties, application and production. Review. Part 2. Chromium and zirconium carbides

The properties, application, and methods for producing chromium and zirconium carbides are considered. These carbides are oxygen-free refractory metal-like compounds. As a result, they are characterized by high values of thermal and electrical conductivity. Their hardness is relatively high. Chromium and zirconium carbides exhibit significant chemical resistance in aggressive environments. For these reasons, they have found application in modern technology. Chromium carbide is used mainly as component of surfacing mixtures to create protective coatings that resist intensive abrasive wear, including at elevated temperatures (up to 800 °C) in oxidizing environments. This compound is also used in the manufacture of tungsten-free hard alloys and carbide steels. Chromium carbide, along with vanadium carbide, is used as a grain growth inhibitor in WC – Co hard alloys. Powdered zirconium carbide can be used to polish the surface of items made of ferrous and non-ferrous metals. The properties of refractory compounds depend on the content of impurities and dispersion (particle size). To solve a specific problem associated with the use of refractory compounds, it is important to choose the right method for their preparation, to determine the permissible content of impurities in the initial components. This leads to the existence of different methods for the synthesis of carbides. The main methods for their preparation are: synthesis from simple substances (metals and carbon), metallothermal and carbothermal reduction. Plasma-chemical synthesis (vapor-gas phase deposition) is also used to obtain carbide nanopowders. A characteristic is given to each of these methods. Information on the possible mechanism of the processes of carbothermal synthesis is presented.

Water Quality Determination Using Soil and Vegetation Communities in the Wetlands of the Andes of Ecuador

The bofedales are high Andean ecosystems of great socioeconomic and ecological importance. The Chimborazo Fauna Production Reserve has 15 bofedales in its jurisdiction, located in the provinces of Chimborazo, Bolívar, and Tungurahua. The objective of this study was to establish the relationship between plant species composition and the physicochemical characteristics of water and soil. To determine the floristic composition, destructive sampling of species was applied, and three sampling points of 1 m2 were established every 100 m per wetland. At each sampling point, physical-chemical variables were recorded in situ and in the laboratory for water and soil. The floristic analysis identified 78 riparian species of riparian plants (63 vascular, 12 bryophytes, 4 pteridophytes) and 1 lichen. In the aquatic environment, seven vascular plants, recognized as macrophytes, were recorded. The results show great heterogeneity in the soil, water, and vegetation characters because they respond to a mineralization gradient (as indicated by the high values of electrical conductivity and dissolved ions). Additionally, it was observed that the total amount of soluble solids that characterizes the Los Hieleros wetland (W11) is independent of hardness and chemical oxygen demand, which correlate with each other and, in turn, better describe the Pachancho wetland (W12). The highest degree of turbidity corresponds to the Cóndor Samana (W9) and Portal Andino (W10) wetlands. The Culebrillas (W6), Puente Ayora ANI (W14), and Pampas Salasacas (W1) wetlands are characterized by the presence of dissolved oxygen, so it is assumed that these are the wetlands with the best water quality. Consequently, it is imperative to double efforts to describe the ecology and status of these high Andean wetlands in order to promote their conservation.