Peri-urban Areas Research Articles

Effect of a Nutrition Education Intervention on Food Safety Knowledge, Attitudes and Practices of Mothers of Children under 5 Years in the Peri-Urban Areas of Bobo-Dioulasso: Before and after Study

Effect of a Nutrition Education Intervention on Food Safety Knowledge, Attitudes and Practices of Mothers of Children under 5 Years in the Peri-Urban Areas of Bobo-Dioulasso: Before and after Study

Seroconversion, genotyping, and potential mosquito vector identification of Japanese encephalitis virus in pig sentinel settings in Bali, Indonesia.

Despite the endemicity of Japanese encephalitis virus (JEV) in humans and animals in the Province of Bali, Indonesia, there is little data on whether seroconversion to the virus occurs in pigs, JEV genotypes circulating, and it's potential mosquito vectors in the area. The aims of this study were to (i) Determine whether JEV infection in Balinese pigs occurs before reaching their sexual maturity, (ii) identify the genotypes of circulating JEV, and (iii) identify potential JEV mosquito vectors at the study sites in urban and peri-urban areas of Bali. Sixteen 1-week-old Landrace piglets from two different sows were housed in Denpasar. Similarly, 18 one-week-old mixed-breed piglets of two different sows were housed in Badung Regency. The piglets were bled every 1 to 4 weeks for up to 24 weeks. Serum samples from the 11 piglets were tested for antibodies against JEV, and seroconversion-suspected sera were titrated using an enzyme-linked immunosorbent assay. Blood of seroconverted sera from pigs were tested using polymerase chain reaction (PCR) to detect the genetic sequence of JEV. The mosquitoes in the sentinels were trapped throughout the study period to identify the potential mosquito vectors of JEV. Antibodies were detected in most of the selected piglets' sera from weeks 1 to 24 of their age. However, sera of pig B9 collected from the sentinel setting in Badung Regency showed a four-fold increase in antibody titer from week 4 to week 8, indicating seroconversion. PCR testing of blood from B9 (pooled blood sample collected from week 5 to week 8) identified JEV nucleic acids, which were phylogenetically classified as belonging to the JEV genotype III. Meanwhile, 1271 of two genera of mosquitoes, Anopheles spp. and Culex spp. were trapped in the pig sentinels. JEV seroconversion likely occurs before the pig reaches sexual maturity in Badung Regency. Sequence data indicate that JEV genotype III is circulating in the pig sentinel setting in the regency; however, circulating genotypes need to be clarified through increased surveillance. Meanwhile, Culex spp. and most likely Culex quinquefasciatus and Anopheles spp. were the dominant mosquitoes present in the study sites set in the urban area of Denpasar and peri-urban areas of Badung, Bali, indicating that these are likely vectors in spread of JEV in the region.

Helminth Control Practices in Sheep and Cattle in Urban and Peri-Urban Areas of Adea District, Central Ethiopia.

Gastrointestinal helminth parasitism is an important problem of livestock in many places of the globe. Despite the fact that the disease is one of the leading causes of economic losses, there is little information on the occurrence of the infection in cattle and sheep in Ethiopia. A cross-sectional study was conducted from June 2022 to February 2023 in urban and peri-urban areas of the Ada'a District with the objective of estimating the prevalence of gastrointestinal helminth parasites (GIHPs) in sheep and cattle and to assess the commercial anthelmintic utilization practices and associated risk factors in sheep and cattle. A total of 351 randomly selected fecal samples (192 cattle and 159 sheep) were collected from the rectum and examined using flotation and sedimentation. One hundred respondents were interviewed for questionnaire surveys on anthelmintic utilization practices. The overall prevalence of GIHPs (61.25%) was recorded during the study. Among the animals, 55.21% and 68.55% prevalence of the infection was observed in cattle and sheep, respectively. There was a statistically significant difference (P < 0.05) in gastrointestinal helminth parasite (GIHP) infection between the study animal species, breeds, body condition of the animals, and production systems. However, there were no significant differences in gastrointestinal helminth parasite (GIHP) infection (P > 0.05) according to sex and age of the animals. A higher prevalence of strongyle (55.34%), fasciola (13.48%), and moniezia eggs (10.69%) was recorded. According to a questionnaire survey, ivermectin was found to be the most used anthelmintic drug. This study addresses the challenge of anthelmintic resistance (AR) against currently available anthelmintics; highly prevalent parasitic infections are causing tremendous economic losses to the animal industry.

Diversity of biting midges, mosquitoes and sand flies at four dog shelters in rural and peri-urban areas of Central Morocco.

Blood-feeding arthropods are involved in the transmission of several pathogens that have a major impact on public health. Entomological investigations highlighted the composition, abundance, and diversity of flying hematophagous arthropods at four dog shelters located in central Morocco during an eight-month study, with the aim of discussing their vectorial roles and assessing the risk of these shelters as foci for zoonotic diseases. Monitoring of the arthropod fauna for 64 catch nights resulted in the collection of 2,321 biting midges (Ceratopogonidae), 570 mosquitoes (Culicidae), and 475 sand flies (Psychodidae). Fourteen Culicoides species were recorded and dominant species were Culicoides imicola (55.96%), C. paolae (16.07%), C. circumscriptus (10.29%), and C. newsteadi (5.77%). Three mosquito species were collected, including Culex pipiens s.l. (96.84%), Culiseta longiareolata (2.80%), and Cx. perexiguus (0.36%). Ten sand fly species were collected, including seven Phlebotomus species (62.70%) and three Sergentomyia species (37.30%); Sergentomyia minuta was the most dominant species (34.31%), followed by Phlebotomus sergenti (32.42%), typical Ph. perniciosus (8.63%), Ph. alexandri (6.94%), and Ph. riouxi (6.52%). The coexistence of several vectors in these study areas indicates the potential circulation of a wide range of pathogens, including zoonotic ones, thus requiring the implementation of surveillance and control programs to prevent the emergence and spread of disease outbreaks.

Inventario de aves en dos humedales urbanos de Temuco (Chile): una base para el monitoreo de especies

Abstract: In the city of Temuco, Chile, the importance of urban wetlands has been recognized with the legal declaration of two key ecosystems: Humedal Vegas de Chivilcán and Humedales de Antumalén. This paper presents an inventory of birds in these wetlands, following the Darwin Core standard, and compares the results with other selected inventories in Chile. Observations were made using point counts and 21-hour transects. A total of 50 species from 26 families and 15 orders were identified, with a predominance of native species. Fourteen species were found in both wetlands, 20 exclusively in Chivilcán and 15 in Antumalén. Comparison with other studies revealed significant differences in bird composition between urban and peri-urban habitats, illustrating that urban habitats maintain a unique diversity distinct from that of peri-urban areas. The diversity of habitats and the ‘least concern’ status of most species highlight the importance of these wetlands as refuges for avian biodiversity. The structure of the Darwin Core database facilitates their integration with other biodiversity systems, highlighting the need for continued conservation and study of these urban ecosystems.

Supervised Model for Peri-Urban Area Demarcation in Hyderabad, India

Supervised Model for Peri-Urban Area Demarcation in Hyderabad, India

New data regarding the distribution and status of the herpetofauna from urban and peri-urban habitats in the city of Pite&amp;#537;ti, Arge&amp;#537; county (Romania)

Identifying urban and peri-urban areas inhabited by species of reptiles and amphibians represents the first step in understanding how herpetofauna can adapt to anthropogenic factors. This is particularly true for regions where sampling biases have left significant gaps in our knowledge of fauna distribution, such as Romania. The aim of the study is to show my preliminary observations on the herpetofauna and its use of habitats in the urban and peri-urban environments from the city of Pite&amp;#537;ti, Arge&amp;#537; County, located in southern Romania. I identified nine species of amphibians (Salamandra salamandra, Lissotriton vulgaris, Triturus cristatus, Bombina variegata, Bufo bufo, Bufotes viridis, Hyla orientalis, Pelophylax ridibundus and Rana dalmatina) and nine species of reptiles (Emys orbicularis, Trachemys scripta, Lacerta agilis, Lacerta viridis, Podarcis muralis, Anguis colchica, Coronella austriaca, Natrix natrix and Natrix tessellata). The most abundent species in urban environments were Podarcis muralis and Bufotes viridis, with other species naturally present in the same habitats being Lacerta viridis, Hyla orientalis and Bufo bufo. In an artificial urban pond there were present Emys orbicularis and the invasive species Trachemys scripta (together with other exotic turtles belonging to other genera) as a result of translocation and releases. When taking into account the peri-urban areas as well, the most abundant species in the study area were Bombina variegata, Rana dalmatina and Bufotes viridis, the first two being limited to the woodland area. The most widespread species were Hyla orientalis, Bufotes viridis, Lacerta viridis, Podarcis muralis and Natrix natrix. These widespread species were present throughout all the study area. I have also recorded some species of reptiles with very few observations in the Arge&amp;#537; County: Natrix tessellata and Trachemys scripta. Finally, I identified anthropogenic factors that negatively impact the herpetofauna, such as habitat loss, direct persecution, road mortality, invasive species and poaching.

The Impact of Online Transportation Services on Indonesian Urban Non-Working Trip Volume and Distribution Pattern: A Case Study in Bandung City

The development of digital technology has made it much easier for most people to access online communication through smartphones. Such a phenomenon has encouraged operators to develop an online transportation service system, which has also been growing in Indonesian urban areas. The urban community accepts the new alternative of the application-based transportation system since it offers a much more efficient way to reach transportation services. Moreover, the online transportation system also offers a much wider range of destination locations. It is believed that the creation of an application-based transportation service system will affect metropolitan areas' social and economic conditions and how urban communities’ travel. The development of this application-based transportation service would change the configuration of urban non-working trip distribution patterns, which should be understood as inputs for the urban transport development plan. This research aims to understand the impact of online transportation services on non-working trip distribution patterns in Indonesian urban areas, with Bandung City as the case study. The method used in this research is statistical descriptive, using respondents' responses to map the influenced trip generation and distribution patterns. The results show that online transportation has enabled the community to travel more easily and reach wider areas. Such changes have formed a new travel pattern that extends the destination locations to a wider peri-urban area. In the future, the government should anticipate urban fringe area land use growth, changing the region into more "urbanized-built-up" areas.

Investigating butterfly communities in peri-urban areas of Alba Iulia, Romania

"More than 50% of the human population lives in cities presently, and the expansion of urban areas is more accelerated than ever. This affects natural ecosystems through habitat fragmentation, pollution, degradation of habitats etc. Urban ecology studies increased over the last 20 years to address all problems related to urbanisation, from biodiversity conservation to sustainability and resource management. Studies investigating urban and peri-urban biodiversity are useful for the development of sustainable cities, and are very scarce in Romania. Our study documented the butterfly diversity and community assemblages over two years, of a periurban area of the city Alba Iulia, in Romania. We produced a species list and documented the composition of butterfly communities in two habitat types (grassland and park), that are widespread in and around Transylvanian cities."

Bacteriological prevalence of salmonellosis due to Salmonella gallinarum (typhosis) in exotic and local hens in peri-urban areas of Bamako, Ségou and Sikasso in Mali

In Mali, poultry farming is the main source of table eggs and broiler chickens. However, among the constraints to its development are those of a health nature in general and salmonellosis in particular. The objective of this study conducted in 2014-2015 was to assess the bacteriological prevalence of salmonellosis caused by Salmonella gallinarum in exotic and local hens in the peri-urban areas of Bamako, Ségou and Sikasso. 526 samples (515 cloacal swabs and 11 organ samples) from 182 chicken farms (exotic and local) collected and tested in culture. An overall bacteriological prevalence rate of 10.2% obtained with 9.7% in Bamako against 15.1% in Ségou and 8.0% in Sikasso. These rates varied according to the nature of the samples (9.5%, 14.2% and 6. 2% for cloacal swabs against 25%, 100% and 50% for organ samples respectively in Bamako, Ségou and Sikasso) and the type of poultry (9.2% in exotic hens and 27.5% in local chickens). Statistical analysis revealed no significant variation (p= 0.128&gt;0.05 in Ségou, p=0.335&gt;0.05 in Sikasso) in prevalence at the Ségou and Sikasso sites. On the other hand, it revealed a significant variation according to the types of samples and poultry (p=0.003&lt;0.05). This study confirmed the persistence of avian salmonellosis in poultry farms located in peri-urban areas of Bamako, Ségou and Sikasso. 5% in local hens). Statistical analysis revealed no significant variation (p= 0.128&gt;0.05 in Ségou, p=0.335&gt;0.05 in Sikasso) in prevalence at the Ségou and Sikasso sites. On the other hand, it revealed a significant variation according to the types of samples and poultry (p=0.003&lt;0.05). This study confirmed the persistence of avian salmonellosis in poultry farms located in peri-urban areas of Bamako, Ségou and Sikasso. 5% in local hens). Statistical analysis revealed no significant variation (p= 0.128&gt;0.05 in Ségou, p=0.335&gt;0.05 in Sikasso) in prevalence at the Ségou and Sikasso sites. On the other hand, it revealed a significant variation according to the types of samples and poultry (p=0.003&lt;0.05). This study confirmed the persistence of avian salmonellosis in poultry farms located in peri-urban areas of Bamako, Ségou and Sikasso.

Assessing whether peri-urban agricultural land or plantation forest is a better green infrastructure for ground arthropods at local and landscape scales

City agencies across multiple continents have invested millions of funds in ambitious afforestation projects in urban and peri-urban areas to enhance the city green infrastructure. One example is the Beijing One Million Mu Plain Afforestation Project, which has established 146,000 ha of plantation forests, mainly on arable lands. This contradicts the national arable land conserving policies and has dramatically changed local habitat types and landscape context. However, the impact of these processes on biodiversity is not well understood. To investigate this impact at local and landscape scales, we explored a space-for-time approach. We selected 12 plantation forests and their nearby arable lands along a gradient of plantation forest cover in the surrounding landscapes. We surveyed ground spiders and carabids and analyzed their responses to local habitat type, landscape context, and their interaction. In the sampled landscapes, plantation forest cover increased (12.0%–35.9%), while arable land cover decreased (58.3%–31.8%). 96.3% of the new plantation forests were established on arable lands. Intensive afforestation on arable lands did not increase local ground arthropod diversity. In fact, ground arthropod abundance and species richness in plantation forests were significantly lower than in arable lands when the surrounding arable land cover was relatively high. With surrounding arable land cover decreasing, ground arthropod abundance and species richness in plantation forests increased but did not exceed those in nearby arable lands. Hence, the overall ground arthropod diversity at landscape scale was not improved. These findings suggest that, from a biodiversity conservation perspective, plantation forests did not surpass peri-urban agricultural lands as a better green infrastructure . However, ground arthropods benefit from rich local non-crop herb communities. Conserving peri-urban agricultural lands and implementing extensive management regimes for agricultural lands and existing plantation forests are more effective tools than ambitious afforestation of agricultural land in peri-urban areas of Beijing and other metropolises.

Aerosol Optical Depth Measurements from a Simulated Low-Cost Multi-Wavelength Ground-Based Camera: A Clear Case over a Peri-Urban Area

This paper highlights the advantages of an affordable multi-wavelength ground-based camera, called WaltRCam, for monitoring Aerosol Optical Depth (AOD) in a clear case over a peri-urban area. To simulate the performance of this low-cost camera, for which data are not yet available, we use data from an expensive hyperspectral camera (HSI) to mimic its characteristics. Our methodology is based on the construction of look-up tables using the DART (Discrete Anisotropic Radiative Transfer) 3D radiative transfer model. DART simulates the different spectra observed by the WaltRCam camera, which then provides the AODs for all image pixels in near-real-time. Moreover, DART is coupled to a 3D scale-model of the city of Toulouse (dating from 2014) to model complex urban geometries and to associate specific optical properties to the various objects that make up the environment. Moreover, we use a neural-network-based method to recognize the various objects in the image in order to take into account only pixels common between the observations. In this way, we take account of changes to the peri-urban area, such as vegetation growth, construction, demolition of buildings, etc. The results of this study show that the WaltRCam camera, by capturing eight wavelengths, can deliver convincing results compared with ground and satellite reference data, with a correlation coefficient of 0.9 and an average RMSE of less than 0.02.

Does Maize Cultivation is Profitable in Tamil Nadu-economics of Maize cultivation in Western Zone of Tamil Nadu, India

Maize is important cereal crop and widely cultivated across India after Rice and Wheat. Maize in India, contributes nearly 9 per cent in the national food basket. Maize is cultivated throughout the year in all states of the country for various purposes including grain, fodder, green cobs, sweet corn, baby corn, popcorn in peri-urban areas. The present study is taken to identify the economics of maize cultivation in different districts of western zone of Tamil Nadu. The study is based on the primary data. The primary data required for the study were collected through personal interview from 166 farmers with the help of a comprehensive interview schedule. The study identifies that ploughing cost differs from Rs.11450 to Rs.11850, cost for seed and sowing differs from Rs.10500 to Rs.11,500. The study also identifies that on average the maize farmers earn Rs.50,000 per hectare and the benefit cost ratio come around 1.6.

The Trend of Peri-Urban Land Use Change in Small and Medium Sized Urban Areas. A Case of Kimilili Town, Bungoma County, Kenya

The purpose of this study was to determine patterns in land use change in Kimilili peri-urban areas between 1990 and 2020. We got Landsat data for the years 1990, 2000, 2010, and 2020 from the USGS website. Arc GIS version 10 and ERDAS Imagine version 2018 were used for digital image processing and GIS analysis. Imageries for the following land use groups were obtained using supervised classification using the Maximum Likelihood classification algorithm: built-up area, agricultural land, dense vegetation, and bare terrain. Ground truthing was done in order to get the required reference information. An accuracy assessment was conducted using Google maps at various periods of the year for the LULC maps from 1990, 2000, 2010, and 2020. Change detection analysis was used to carry out land use conversions between the research intervals. The land use types were categorized based on their respective areas, measured in hectares. Over a 30-year period, a notable 16.6% growth in built-up area was seen overall. Additional findings revealed a 16.7% decrease in agricultural land. According to the study, there were notable changes in land usage between 1990 and 2020. Enforcing management standards is necessary in order to maintain control over urban expansion.

Characteristics of the cattle fattening system and body conformation of beef cattle in Bahir Dar Special Zone, Amhara Regional State, Ethiopia

The study was conducted in the urban and peri-urban areas of Bahir Dar special zone, Amhara Regional State, Ethiopia, with the objectives of characterizing the cattle fattening system and conformation traits of fattening cattle in the area. Data on the fattening systems were collected from 112 cattle fatteners (72 from peri-urban and 40 fatteners from urban areas) who have experience with cattle fattening using a semi-structured questionnaire. The beef cattle conformational traits measurement was carried out on fattening cattle on a total of 60 animals (30 from peri-urban farms and 30 from urban farms) in selected farms under the fattener’s management condition. Twelve farms were used for the body conformation measurement of the animals using ICAR guidelines. The survey data was analyzed and summarized using descriptive statistics and index ranking. Conformational trait data were analyzed using the General Linear Model Procedure of SAS 9.1. The overall mean family size, age of household heads, and landholding per household were 8.43, 42.31 years, and 0.77 hectares, respectively. Most of the respondents in the periurban hold cattle for draft power (index = 0.40). The respondents prefer intact and matured bulls in the urban (100%) and peri-urban (93%) areas. The respondents, on average, fatten three times a year (47.3%) with a mean number of 8.08 fattening cattle. The main feed sources in the peri-urban and urban areas were crop residue (index = 0.26) and agro-industrial by-products (index = 0.63), respectively. Most of the cattle fatteners select their fattening cattle based on body conformation (index 0.29) and condition (index 0.21). The mean initial and final body weight of fattening cattle were 348.75kg and 425.33 kg, respectively. In general, the cattle fattening practice needs to be supported by the extension system so as to efficiently use the resources.

Social support in low-income women with Fibromyalgia Syndrome from a sub-urban and peri-urban areas of Tenerife (Canary Islands, Spain): a mixed method study

BackgroundWomen with Fibromyalgia Syndrome (FMS) can benefit form adequate social support to fight the consequences of their illness, but the extent to which this is available to those with low incomes who live in depressed areas of Tenerife (Canary Islands, Spain) is currently unknown. The purpose of this study was to explore social support in low-incomes women with FMS in sub-urban and peri-urban areas of Tenerife.MethodologyA sequential exploratory mixed method study was carried out from January 20, 2023, to June 10, 2023, at the Fibromyalgia and Chronic Fatigue Association of Tenerife (AFITEN) using non-probability convenience sampling. Social support was analyzed quantitatively through MOS-SSS survey and Duke-UNC-11 questionnaire, while qualitative data were obtained through semi-structured interviews to identify social support providers and analyze their satisfactions levels.ResultsA total of 49 women, with a mean age of 57.80 years-old (SD = 13.25) were finally included in this study. MOSS-SSS and Duke-UNC-11 both indicated lower social support levels at 68.6 (SD =16.3) and 38.0 (SD = 9.74), respectively. The qualitative analysis revealed that partners and friends provided the most significant support with the highest satisfaction scores.ConclusionsThe socioeconomic status of low-income women with FMS living in sub-urban and peri-urban areas of Tenerife (Canary Islands, Spain) influences on their social support, with the affective support and confidentiality being the most affected dimensions.

Seroprevalence Of SARS-COV-2 infection in asymptomatic indigenous from the largest Brazilian periurban area.

This study assessed the seroprevalence of SARS-CoV-2 in 496 asymptomatic individuals from Mato Grosso do Sul, located in Dourados, the largest periurban indigenous area in Brazil, from January 25 to February 4, 2021. The volunteers participated before receiving their first dose of the CoronaVac inactivated vaccine. For screening, blood samples were collected and analyzed using SARS-CoV-2 rapid tests and the enzyme-linked immunosorbent assay (ELISA). We observed varying trends in total anti-SARS-CoV-2 antibodies across different variables. Seropositivity among the participants tested was 63.70% (316/496) using the rapid test and 52.82% (262/496) were positive using the ELISA method. The majority of participants identified with the Guarani-Kaiowá ethnic group, with 66.15% (217/328), and other ethnic groups with 58.84% (193/328). The median age of the subjects was 30.5 years, with 79.57% (261/328) being femaleThis research showed the elevated seroprevalence of SARS-CoV-2 antibodies in asymptomatic Brazilians. The findings indicate a high seropositivity rate among the asymptomatic indigenous population of Midwest Brazil. This underscores the overlooked status of these communities and underscores the need for targeted national initiatives that emphasize the protection of vulnerable ethnic groups in the fight against COVID-19.

Responses of Different Plant Taxonomic Groups to Complex Environmental Factors in Peri-Urban Wetlands

Wetland plants are essential for ecosystem functions. However, wetland plants in peri-urban areas have been affected by increased human interference. Hence, analyzing the drivers of plant diversity could be extremely useful for biodiversity conservation. The main objective was to investigate the response of plant diversity in wetlands (e.g., plant richness, plant abundance, and taxonomic distinctness) to the environment in peri-urban areas. The results show that the wetland area is the most important factor influencing plant diversity in peri-urban areas. Plant richness and abundance decreased significantly with a decreasing wetland area. The cultivated land decreased the abundance of native plants and indirectly promoted native plant growth and spread by increasing the total organic carbon content of the water. Forest encroachment on wetlands significantly reduced native plant abundance. The effects of soil pH, water body pH, soil organic matter, and slope on introduced species showed opposite trends to those on native plants. Introduced plants were significantly more adapted to the land use around the wetland than native plants. The green land and forest areas promoted the spread of introduced plants. Introduced plants were significantly less adapted to the physicochemical properties of the soil and water than native species. Humans, through agricultural cultivation, have caused introduced plants in cultivated lands to escape to wetlands, resulting in an increase in introduced species. The riparian zone length showed opposite effects for aquatic and terrestrial plants. Pollution from urbanization and agriculture both positively and negatively affects aquatic plants. The response of aquatic plants to nutrients in the water was better than their response to soil nutrients and the response of terrestrial plants to soil nutrients. Terrestrial plants can better withstand pollution from urbanization and agricultural activities, as well as the erosion of wetlands from forested and cultivated lands.

Pressmud Subdue Phytoremediation Indices in Lead-Contaminated Soils: A Human Health Perspective.

Direct discharge of waste into water bodies and mining are two major sources of lead contamination in ecosystems. Water scarcity promoted the usage of industrial effluent-contaminated waters for crop production, mainly in peri-urban areas. These wastewaters may contain heavy metals and pollute crop ecosystems. These metals can reach the living cell via contaminated raw foodstuffs that grow under these conditions and cause various ill effects in metabolic activities. In this study, graded levels of pressmud (0, 2.5, 5, 10g/kg) were applied on lead imposed soil with different contamination levels (0, 100, 150, 300mg/kg) and metal dynamics was studied in spinach crop. Experimental results showed that the addition of pressmud upto 10mg/kg had decreased different phytoremediation indices in spinach crop. Whereas, increasing Pb level enhanced the indices' values, indicating accumulation of significant amount of Pb in spinach biomass. However, application of pressmud (upto 10mg/kg) reduced the bioconcentration factor (BCF) from 0.182 to 0.136, transfer factor (TF) from 0.221 to 0.191, translocation efficiency 66.11-59.34%; whereas, Pb removal enhanced from 0.063 to 0.072 over control treatment. These findings suggest that application of pressmud declined Pb concentration, the BCF and the TF in test crop which lead to less chances of adverse effect in human. These information are very useful for effectively managing wastewater irrigated agricultural crop production systems.

A New Methodology for Estimating Surface Albedo in Heterogeneous Areas from Satellite Imagery

Precise mapping and continuous monitoring of fine-scale surface albedo are indispensable for assessing and optimizing renewable energy sources. Understanding the variations in surface reflectivity is crucial in capturing the full potential of renewable technologies, as it directly impacts the efficiency of harnessing solar energy for sustainable power generation. Satellite remote sensing stands out as the sole practical approach for estimating surface albedo at both regional and global scales. Although there are different methods to calculate albedo from satellite data, most satellite products result in low spatial resolution for large heterogeneous areas, such as urban and peri-urban areas. This paper evaluates and compares several methodologies to calculate surface albedo from Landsat 8 imagery. As a result, a new methodology for estimating surface albedo for heterogeneous areas has been proposed. The new methodology has been compared with direct and indirect albedo measurements, improving the original methodologies of Baldinelli and Silva with respect to the Arctic-Boreal Vulnerability Experiment (ABOVE) albedo images by reducing the RMSE by 85% and 52%, respectively.