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aerosols; air pollution; autumn; formaldehyde; hydroxyl radicals; models; nitrous acid; oxidants; ozone; photolysis; troposphere; uncertainty; China
Abstract:
... Atmospheric oxidizing capacity (AOC) is the fundamental driving factors of chemistry process (e.g., the formation of ozone (O₃) and secondary organic aerosols (SOA)) in the troposphere. However, accurate quantification of AOC still remains uncertainty. In this study, a comprehensive field campaign was conducted during autumn 2019 in downtown of Beijing, where O₃ and PM₂.₅ episodes had been experie ...
Secale; Triticum; agricultural sciences; agronomy; autumn; average daily gain; beef; beef production; forage; grasslands; indigenous species; pastures; protein supplements; spring; triticale; warm season; New Mexico
Abstract:
... Forage-based beef production is one of the most productive agricultural systems, especially in semiarid, subtropical environments, yet it is temporally variable due to climatic factors. Dormant native perennial warm-season grasses are available for grazing from autumn through spring; however, their protein concentration is inadequate to support growing cattle. Winter cereal forages, such as tritic ...
altitude; autumn; case studies; data collection; hydrology; models; rain; regression analysis; satellites; spring; summer; water vapor; China
Abstract:
... Accurate precipitation data are crucial for hydrological, meteorological, and ecological research. However, it is difficult to obtain high-precision and high-resolution spatiotemporal distributions of precipitation in remote mountain regions with complex topography and sparse rain gauges. In addition, the spatial resolutions of existing satellite precipitation products are too coarse to apply them ...
Siberia; altimeters; autumn; latitude; lead; meteorological data; sea ice; standard deviation; summer; Arctic region; Kara Sea
Abstract:
... NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) mission was launched in September 2018. The sole instrument onboard ICESat-2 is ATLAS, a highly precise laser that now provides routine, very-high-resolution, surface height measurements across the globe, including over the Arctic. To further improve the detection accuracy of the sea ice concentration (SIC), we demonstrate a new processin ...
... The prediction of monthly rainfall is greatly beneficial for water resources management and flood control projects. Machine learning (ML) techniques, as an increasingly popular approach, have been applied in diverse climatic regions, showing their respective superiority. On top of that, the ensemble learning model that synthesizes the advantages of different ML models deserves more attention. In t ...
... Drought-induced dieback has been extensively studied in various forests habitats. We used a retrospective tree ring width (TRW), basal area increment (BAI), oxygen isotope ratios in tree ring cellulose (δ¹⁸OTR) and carbon isotope ratios in tree ring cellulose (δ¹³CTR) to assess causes in declining Pinus sylvestris L. and Pinus nigra J.F. Arnold. The climate data analysis indicates a significant in ...
Gugu Shila Mabizela; Brigitte von Pressentin du Preez; Chantelle Human; Magdalena Muller; Dalene de Beer; Marieta van der Rijst; Martha Margaretha Slabbert; Cecilia Bester; Elizabeth Joubert
... It is challenging to meet the demand for plants with high bioactive content for functional food extract and herbal tea production, with the latter also having an acceptable sensory profile. The optimal harvest season for C. genistoides to maximise phenolic content without compromising sensory quality was determined. Summer produced leaves with higher levels of mangiferin and isomangiferin than win ...
... Deciduous and evergreen species, which have evolved repeatedly across different clades, can coexist in a given environment despite substantial differences in their leaf traits. It remains unclear how these two groups differ in the development of leaf traits over their lifespans or how their carbon economy – the balance between lifetime carbon gain and leaf construction cost – is determined. We det ...
... Rapid economic development in coastal areas has gradually increased the risk of coastal water quality deterioration. The assessment methods of coastal water quality are multifarious, but many depend on either subjective judgment or objective calculation. We proposed a weighted sum methodology by integrating the subjective analytic hierarchy process and objective entropy theory (AHP-entropy weight ...
... Snowpack on sea ice can adjust changes in sea ice conditions and plays a vital role in the Earth's climate system. Snow depth, an important parameter of snowpack, is a necessary variable for retrieving sea ice thicknesses based on satellite altimeter data. Here, regression analysis (RA) is used to determine the best gradient ratio (GR) combination of brightness temperatures for estimating snow dep ...
autumn; cotton; energy; grapes; hydrology; irrigated farming; irrigation; risk; spring; summer; uncertainty; water allocation; water power; water shortages; water storage; watersheds; winter; Central Asia
Abstract:
... In this study, a fixed-mix stochastic fractional programming (FSFP) method is developed for balancing the water-allocation conflict between upstream hydropower generation and downstream agricultural irrigation. FSFP has advantages in dealing with ratio-objective problem under uncertainty, reflecting the dynamic and stochastic characteristics over a long-term planning context, as well as analyzing ...
air; autumn; cluster analysis; cold; dust; environment; models; spring; summer; wind; winter; Central Asia; Iran; Middle East
Abstract:
... Dust storms are a common phenomenon in arid and semi-arid regions in West Asia, which has led to high levels of PM₁₀ in local and remote area. The Yazd city in Iran with a high PM₁₀ level located downstream of dust sources in the Middle East and Central Asia. In this study, based on meteorological and PM₁₀ monitoring data, backward trajectory modeling of air parcels related to dust events at Yazd ...
... We report the finding of an Agaricus specimen in the section Sanguinolenti and describe it as a new species Agaricus hortusdamarum. Based on ITS data, the species is distinct and well separated from all known sequenced species within this section. The type specimen grew in late autumn, under Cupressus sempervirens, near a Pinus pinea alley in the Villa Borghese Gardens in Rome, in Italy. The new s ...
COVID-19 infection; Internet; Severe acute respiratory syndrome coronavirus 2; air; air pollution; air quality; autumn; case studies; etiological agents; observational studies; quality control; statistical analysis; surveys; viruses; weather; Iran
Abstract:
... COVID-19, one of the greatest health challenges of the present century, has infected millions of people and caused more than 6 million deaths worldwide. The causative agent of this disease is the new virus SARS-CoV-2; which continues to spread globally and sometimes with new and more complex aspects than before. The present study is an observational study aimed to investigate the role of AQI; PM₂. ...
... Urban growth and intensification are projected to increase as the global human population increases. Historically, urban areas have been disregarded as suitable wildlife habitat, but it is now known that these areas can be biodiverse and that wildlife species can adapt to the environmental conditions. One such urban‐dwelling species is the Eurasian red squirrel Sciurus vulgaris, which has suffered ...
Japan; aboveground biomass; air temperature; autumn; biomass production; carbon dioxide; census data; climate change; deciduous forests; forest ecosystems; nitrogen; research; summer; temporal variation; topography; tree mortality; trees
Abstract:
... Assessing long-term changes in the biomass of old-growth forests with consideration of climate effects is essential for understanding forest ecosystem functions under a changing climate. Long-term biomass changes are the result of accumulated short-term changes, which can be affected by endogenous processes such as gap filling in small-scale canopy openings. Here, we used 26 years (1993–2019) of r ...
autumn; composts; environmental impact; human health; microplastics; municipal solid waste; organic wastes; research; soil pollution; waste management; winter; Lithuania
Abstract:
... The widespread use of plastic without the sustainable management of the plastic waste has led to its accumulation in the environment. The presence of microplastics even in drinking water and food products is of immense concern. This situation is getting even more complicated due to the limited knowledge about the sources of microplastics and their impact on the environment and human health. This a ...
... To quantify the hydrological effects of disconnected impervious area is significant for urban planning and storm water management. Most relevant studies were event-based analysis and only focused on surface runoff. The accumulated impacts of disconnected imperviousness on both surface and subsurface runoff have not been fully understood yet. In this study, a physically based model coupling surface ...
acoustics; analysis of variance; autumn; birds; humans; predator control; regional parks; spring; vocalization; New Zealand
Abstract:
... One quarter of all terrestrial native bird species have become extinct since human arrival in New Zealand, leading to a pervasive silence in many natural environments due to the decrease in native bird song. Passive acoustic techniques are a potential tool for environmental monitoring, especially for testing whether the control of mammals can reverse the ‘silent forest’ effect. Here we compare sou ...
... Seasonal growth and changes in biomass within communities are the core of ecosystem dynamics. Biocrusts play a prominent role as pioneers in dryland soils. However, the seasonal dynamics of biocrusts remain poorly resolved. In this study, we collected biocrusts across a successional gradient (cyanobacteria, cyanolichen, chlorolichen, and moss-dominated) from southeastern Tengger Desert (China) dur ...
... Population growth rates in geese can be sensitive to small changes in survival and/or production of young, and understanding which demographic rates explain more variation in population change can be crucial for implementing effective conservation actions. Here, we show that annual adult survival and production of young (assessed in winter) explained most variation in annual population growth rate ...
Arundo donax; Pleurotus ostreatus; agronomy; anaerobic digestion; autumn; biogas; biomass; cell walls; energy; energy crops; energy use and consumption; fossil fuels; grasses; harvest date; lignin; lignocellulose; methane production; winter; Mediterranean region
Abstract:
... Increasing energy demands and fossil fuel consumption causing global warming has motivated research to find alternative energy sources such as biofuels. Giant reed (Arundo donax L.), a lignocellulosic, perennial, rhizomatous grass has been proposed as an important bioenergy crop for advanced biofuel in the Mediterranean area. Anaerobic digestion for advanced biomethane seems to be a promising appr ...
Katherine M. Ineson; Nichola J. Hill; Daniel E. Clark; Kenneth G. MacKenzie; Jillian J. Whitney; Yianni Laskaris; Robert A. Ronconi; Julie C. Ellis; Jean‐François Giroux; Stéphane Lair; Skyler Stevens; Wendy B. Puryear; Jonathan A. Runstadler
Influenza A virus; Larus delawarensis; autumn; coasts; disease transmission; fledglings; habitats; herring; hosts; human health; immune system; immunity; longevity; migratory behavior; models; seroprevalence; sympatry; water birds; North America
Abstract:
... Gulls are ubiquitous in urban areas due to a growing reliance on anthropogenic feeding sites, which has led to changes in their abundance, distribution, and migration ecology, with implications for disease transmission. Gulls offer a valuable model for testing hypotheses regarding the dynamics of influenza A virus (IAV) – for which gulls are a natural reservoir in urban areas. We sampled sympatric ...
air; air pollution; autumn; females; hospitals; males; models; regression analysis; research; risk; spring; summer; winter; China
Abstract:
... We aimed to comprehensively investigate the associations of air pollutants with hospital admissions for critical illness in ED. Patients with critical illness including level 1 and level 2 of the Emergency Severity Index admitted in ED of Changsha Central Hospital from January 2016 to December 2020 were enrolled. Meteorological and air pollutants data source were collected from the National Meteor ...
air; air pollution; air quality; autumn; females; hospitals; humans; males; nonlinear models; reproductive system; research; risk; spring; summer; winter; China
Abstract:
... Air pollution remains a serious environmental problem worldwide, and the effects of air pollutants with reproductive system diseases have already attracted extensive attention. The present study investigated the risk of air pollutants on reproductive system diseases, based on daily medical visits (DMV) of the past 5 years in central China. Data of DMV outpatients with reproductive system diseases ...
... Particle number concentration (PNC) is an important parameter for evaluating the environmental health and climate effects of particulate matter (PM). A good understanding of PNC is essential to control atmospheric ultrafine particles (UFP) and protect public health. In this study, we reviewed the PNC studies in the literature aimed to gain a comprehensive understanding about the levels, trends, an ...
Sander vitreus; acoustics; autumn; climate; eggs; fecundity; habitats; life history; migratory behavior; reproductive success; summer; telemetry; Lake Superior
Abstract:
... BACKGROUND: While Pace of Life Syndrome predicts behavioural differences between individuals with differential growth and survival, testing these predictions in nature is challenging due to difficulties with measuring individual behaviour in the field. However, recent advances in acoustic telemetry technology have facilitated measurements of individual behaviour at scales not previously possible i ...
... In high-density olive orchards, weed control along the row is pivotal to avoid the competition between the young trees and the weeds to promote a strong vegetative growth of the olives during the first years after planting. Two different mechanical weeders were compared in a high-density olive orchard (1250 trees ha⁻¹) planted in 2019. An intra-row hoeing machine (Control) and an alternative syste ...
... The evaluation of nutrition is an essential element of preventing chronic diseases and can be used to determine nutritional recommendations. A child spends about 7–8 h a day in a kindergarten; therefore, meals served there should be balanced appropriately to ensure the full psychophysical development of the young organism. At preschool age, children develop eating habits that can have life-long ef ...
Sciurus carolinensis; Sciurus vulgaris; autumn; data collection; disease outbreaks; dogs; experimental design; geographical isolation; squirrels; sympatry; Wales
Abstract:
... Native red squirrels (Sciurus vulgaris) persisted in the coastal mainland woodlands of northern Gwynedd whilst sympatric with an invasive grey squirrel (Sciurus carolinensis) population suppressed by culling. Squirrelpox disease in the red squirrel population was recorded in 2017 and 2020/21. An autumn 2020 outbreak was associated with only 17.4% of animals caught and marked in the preceding June ...
... Excretion of urinary nitrogen (N) from grazing ruminants is the main source of N loss from grazed pastures. The aim of this study was to reduce farm N loss by harnessing between-cow variation in urine excretion using a non-invasive acoustic urine sensor technology. Acoustic sensors were attached to 100 cows in summer and autumn to detect the time and duration of urination events during the grazing ...
... In arid northwest China where the precipitation intensity is relatively low, the stable hydrogen and oxygen isotopes (δ²H and δ¹⁸O) in precipitation are usually impacted by the sub-cloud evaporation. To understand the sub-cloud evaporation effect under an arid climate, we used the hourly meteorological data at 14 stations in the Kaxgar-Yarkant River Oasis, a rainshadow oasis of northwest China, an ...
... Understanding the relationship of hydrothermal conditions to vegetation changes is conducive to revealing the feedback mechanism connecting climate variations and vegetation. Based on the methods of Theil–Sen median analysis, and the Mann–Kendall trend test, this research investigated the spatiotemporal vegetation dynamics in Central Asia using the Normalized Difference Vegetation Index (NDVI) and ...
atmospheric pressure; autumn; humidity; industry; ozone; pollution; satellites; spring; summer; temperature; time series analysis; winter
Abstract:
... This study uses the daily product data of the concentration of ozone in the atmospheric column (ozone column concentration) collected by the Aura satellite’s Ozone Monitoring Instrument (OMI), to evaluate the ozone pollution status of the Fenwei Plain in east-central China, by employing pixel-based spatial analysis, an θₛₗₒₚₑ trend index, a Hurst index, and grey correlation. The following results ...
autumn; cloud cover; databases; dust; ice; liquids; photosynthetically active radiation; research; seasonal variation; solar radiation; spring; summer; winter; Mediterranean region
Abstract:
... This study addresses the analysis of the cloud effects on photosynthetically active radiation (PAR, 400–700 nm) for global (PARGₗₒbₐₗ) and its diffuse component (PARDᵢffᵤₛₑ). To this aim, a 11-year database of measured PARGₗₒbₐₗ and modeled PARDᵢfᵤₛₑ recorded in a Mediterranean site was analyzed, for both clear-sky and all-sky scenarios. PARGₗₒbₐₗ mean values for the entire period were estimated i ...
autumn; cold zones; regression analysis; sea ice; snow; spring; support vector machines; water vapor; winter; Arctic Ocean; Arctic region; Eurasia
Abstract:
... Because Eurasian snow water equivalent (SWE) is a key factor affecting the climate in the Northern Hemisphere, understanding the distribution characteristics of Eurasian SWE is important. Through empirical orthogonal function (EOF) analysis, we found that the first and second modes of Eurasian winter SWE present the distribution characteristics of an east–west dipole and north–south dipole, respec ...
Festuca arundinacea; Lolium perenne; animal health; autumn; body temperature; body weight; cultivars; diploidy; endophytes; forage; heat; heat stress; liveweight gain; pastures; secondary metabolites; summer; tetraploidy; toxicity; New Zealand
Abstract:
... To assess animal health and production in sheep grazing perennial ryegrass (Lolium perenne) infected with a tall fescue endophyte (Epichloë sp.). Three replicates of pure perennial ryegrass pastures infected with AR501 tall fescue endophyte (AR501 HE), AR1, AR37 or standard endophyte (STD) (all >85% infection) and a low endophyte control (AR501 LE) were grazed by 10 lambs for 7 weeks during late s ...
autumn; coal; dewpoint; dust; environment; environmental protection; hybrids; pollution; solar radiation; spring; statistical analysis; summer; winter; China
Abstract:
... Dust pollution is a critical challenge in achieving green mining of open-pit coal mines. The scientific basis for dust prevention and management hinges on a thorough understanding of the long-term characteristics of dust pollution. However, analyzing the characteristics of long-term dust pollution in open-pit coal mines has always been a void in research due to the effect of the mines' geographica ...
North Atlantic Oscillation; air temperature; autumn; research; specific humidity; terrestrial radiation; thermodynamics; water vapor; Arctic region; Chukchi Sea
Abstract:
... The clear-sky downward longwave radiation related to water vapor (LW-WV) has been confirmed to be the dominant factor promoting the autumn warming in the Arctic in the boreal autumn. In this study, we reveal the spatiotemporal characteristics of the 2 m air temperature (t2m), clear-sky downward longwave radiation (CDLW), and water vapor in the Arctic and the mechanism affecting the change in the a ...
... Hyperuricemia is an independent risk factor for renal and cardiovascular diseases and is closely associated with gout episodes. It is caused, inter alia, by nutritional habits and genetic factors, and also displays seasonal variability conditioned by meteorological factors. The impact of meteorological factors, including both cold and heat stress, on the human physiology is presented based on the ...
Japan; Pteris cretica; Pteris vittata; agricultural land; arsenic; autumn; biomass; environment; environmental quality; ferns and fern allies; field experimentation; phytoremediation; plant growth; risk; soil; spring; subarctic climates; water solubility; weather
Abstract:
... In this study, the phytoremediation potential of tropical and subtropical arsenic (As) hyperaccumulating fern Pteris vittata in an As contaminated farmland field near an abandoned goldmine was investigated. The tested field is located in a subarctic area of northeast Japan. This study was aimed at decreasing the risk of As in the soil (water-soluble As) with nurturing the soil and respecting the p ...
... Campylobacter cross-contamination of Danish broiler flocks at slaughterhouses was investigated using data from two national surveillance components and from ad-hoc sampling. The animal level (AL) and food safety (FS) components from 2018 were compared. The AL component contained results of PCR on pools of cloacal swabs from 3,012 flocks processed at two Danish slaughterhouses (S1-S2), while the FS ...
administrative management; autumn; basins; drought; humans; probability; supply balance; water; water shortages; watersheds; winter; China
Abstract:
... Socioeconomic drought occurs when a water shortage is caused by an imbalance between the supply and demand of water resources in natural and human socioeconomic systems. Compared with meteorological drought, hydrological drought, and agricultural drought, socioeconomic drought has received relatively little attention. Hence, this study aims to construct a universal and relatively simple socioecono ...
... Antimicrobial resistance (AMR) spread in the food system is a major threat to public and animal health. We describe AMR trends in zoonotic bacteria and identify risk factors associated with AMR occurrence in animals and derived food in Portugal. Data from the Portuguese AMR surveillance programme on food‐producing animals, 2014–2018, were used. AMR frequencies were calculated for Escherichia coli, ...
... Fine particles (PM₂.₅) in the atmosphere, especially PM₂.₅ bounded with trace metals, pose potentially adverse human health risks. This study aimed to characterize the trace elements in PM₂.₅ in a suburban area of Hanoi from November 2019 to December 2020. The study area represented a mixture of industrial, agricultural, and residential areas. The results revealed that PM₂.₅ mass was highest in wi ...
autumn; cropland; deserts; drainage; ecosystems; groundwater; groundwater extraction; hydrochemistry; land use change; oases; river water; saline water; seasonal variation; spatial variation; spring; water quality; Central Asia
Abstract:
... Land use change greatly affects groundwater hydrochemical cycling and thereby food and ecosystem security in arid regions. Spatiotemporal distribution of groundwater hydrochemistry is vital to understand groundwater water-salt migration processes in the context of land use change, while it is not well known in the oasis-desert region of arid inland basins. Here, to investigate the influences of la ...
... In temperate and boreal climate, the timing of plant's growth cessation in autumn highly affects plant carbohydrate reserves and ecosystem productivity. However, the abiotic and biotic factors regulating plant's autumn phenology remain poorly understood, especially on herbaceous plants inhabiting temperate grassland ecosystems. This study collected 10′533 of ground phenological observations conduc ...
autumn; biodiversity; climatology; ecosystems; eddy covariance; energy balance; evapotranspiration; hydrologic cycle; model validation; models; satellites; summer; Brazil
Abstract:
... Evapotranspiration (ET) is one of the main fluxes in the global water cycle. As the Brazilian Pampa biome carries a rich biodiversity, accurate information on the ET dynamics is essential to support its proper monitoring and establish conservation strategies. In this context, we assessed an operational methodology based on the Simplified Surface Energy Balance Index (S-SEBI) model to estimate ener ...
altitude; autumn; climate classification; global positioning systems; latitude; models; research; satellites; summer; water vapor; winter; China
Abstract:
... FengYun 4A (FY-4A) is the first flight unit of the second-generation geostationary meteorological satellite in China (FengYun 4 series, FY-4 series). The Advanced Geostationary Radiation Imager (AGRI) onboard it can provide high spatial resolution precipitable water vapor (PWV) products. This study used Global Navigation Satellite System (GNSS) observations from 230 ground-based GNSS stations with ...
atmospheric precipitation; autumn; drought; evapotranspiration; spring
Abstract:
... Drought is a significant challenge to semiarid Mediterranean grasslands, Increasing the accuracy of monitoring allows improving the conservation and management of these vital ecosystems. Meteorological drought is commonly monitored by the Standard Precipitation Index (SPI) or the Standard Precipitation Evapotranspiration Index (SPEI). On the other hand, agriculture drought is estimated by the Vege ...