by Robert M. Sullivan  and John P. Hileman

Received: 15 November 2021;  Published: 22 February 2022;  doi: 10.21926/aeer.2201009

Our study sought to identify a regional explanation for declining fertility in stocks of co-occurring salmonids in the upper Trinity River, northern California, USA. We focused on evaluating the relationship between thermal variance in river water and hatchery-measured estimates of female fertility as a function of highly managed annual flow regimes. We evaluated annual and seasonal variation in volume of flow and water temperature in response to managed flows associated with annual in-river restoration actions. We [...]

by Tiziana M.P. Cattaneo  , Laura Marinoni  , Stefania Mura  and Massimo Brambilla

Received: 24 December 2021;  Published: 15 February 2022;  doi: 10.21926/aeer.2201008

Soil is a very complex medium made of minerals, organic matter, microorganisms, air, and water. Vibrational spectroscopy techniques are exceptionally well-suited to be used with portable and hand-held devices. In this study, NIR spectroscopy was applied using portable instrumentation and the holistic Aquaphotomics approach to identify the differences in three Mediterranean soil profiles from Sardinia (Italy). The soil samples (95) collected from alluvial and loess-sampling sites in the three study areas of North Sa [...]

by Susan M. Joshi  and Leland J. Jackson

Received: 20 November 2021;  Published: 15 February 2022;  doi: 10.21926/aeer.2201007

Cyanobacteria blooms alter aquatic ecosystems and occur frequently in shallow prairie lakes, which are predicted to increase in salinity as the regional climate becomes hotter and drier. However, flat landscapes that experience depression bottom salinity with high concentrations of sulfate in addition to sodium and chloride, may mitigate nutrient increases or even inhibit cyanobacteria growth. Cyanobacteria can dominate shallow lakes with low N:P ratios because many cyanobacteria species fix dissolved N2, whether d [...]

by Shih-Ang Hsu

Received: 27 December 2021;  Published: 14 February 2022;  doi: 10.21926/aeer.2201006

In September 2020 Hurricane Sally impacted two National Data Buoy Center (www.ndbc.noaa.gov) buoys near its track: 42040 in the deep water and 42012 in the shallow. Using pertinent air-sea interaction formulas from the literature, analyses of these buoy data indicate that, under fully rough airflow and wind sea conditions, U* = a Hs2 /Tp3 + b, here U* is the friction velocity, Hs is the significant wave height, and Tp is the peak wave period. It is found that a = 28 and b = 0.12 for the deep water environment, a = [...]

by Mieczyslaw Szyszkowicz  and Nicholas de Angelis

Received: 18 September 2021;  Published: 11 February 2022;  doi: 10.21926/aeer.2201005

Air pollution affects various aspects of human health. Here, the associations between the number of emergency department visits for circulatory and respiratory problems and ambient air pollution in Toronto, Canada, in the period between April 2004 and December 2015 were studied. The health data were linked with urban air pollution data and weather factors. The conditional Poisson regression models were built for 18 strata (sex, age group, season), 8 exposure factors (air pollutants, indexes), and their 15 lags (0-1 [...]

by Ashley Schnackenberg  , Géraldine Bidar  , Valérie Bert  , Patrice Cannavo  , Sébastien Détriché  , Francis Douay  , René Guenon  , Liliane Jean-Soro  , Alice Kohli  , Thierry Lebeau  , Karen Perronnet  , Laure Vidal-Beaudet  , Christophe Waterlot  and Aurélie Pelfrêne

Received: 11 November 2021;  Published: 08 February 2022;  doi: 10.21926/aeer.2201004

Moderately contaminated garden soils can benefit from gentle remediation options such as soil amendments, which improve soil functions and agronomic potentialities while decreasing environmental and human risk. This study aimed to analyze the effects of doses of various common soil amendments generally applied by gardeners on the predicted bioavailability (i.e., extractability) of metal(loid)s (i.e., As, Cd, Pb, and Zn) in contaminated kitchen garden soils. Fourteen different amendment mixes (i.e., a green waste co [...]

by Lai Fern Ow  and Eugenie Chan

Received: 21 October 2021;  Published: 24 January 2022;  doi: 10.21926/aeer.2201003

This study investigated energy consumption and greenhouse gas (GHG) emission across various playing surfaces (e.g., greens, tees, fairways, and roughs) in an urban parkland golf course. The turfs of golf courses require frequent maintenance to ensure high aesthetic and play quality. Maintenance includes aeration, mowing, irrigation, and fertilization. The annual energy-based carbon footprint was found to be the highest for fairways, followed by greens, tees, and roughs. However, CO2 exchange in the grass was found [...]

by Suiven John Paul Tume

Received: 19 October 2021;  Published: 12 January 2022;  doi: 10.21926/aeer.2201002

Mean monthly rainfall decline with continentality is a commonplace phenomenon that has been used in this study to compare its trend in Bamenda in the Western Highlands and Limbe on the Atlantic lowland coast. This study attempts to bridge some of the methodological gaps in the previous studies on rainfall variability in Cameroon that had emphasized only the inter-annual variability and coefficient of variation without focusing on the specific indices and contrasts between different ecological zones. In this study, [...]

by Advances in Environmental and Engineering Research Editorial Office

Received: 06 January 2022;  Published: 06 January 2022;  doi: 10.21926/aeer.2201001

The editors of Advances in Environmental and Engineering Research would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2021. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can do [...]

by Brenda T. Mbibueh  , Reeves M. Fokeng  and Suiven J.P. Tume

Received: 29 September 2021;  Published: 30 December 2021;  doi: 10.21926/aeer.2104038

Land-use change is one of the main indicators of soil quality. Soil physical and chemical properties vary with land use change and altitude as inferred from transect surveys and toposequences. Soil nitrogen, phosphorus, and potassium (NPK) are essential macronutrients for plant growth and soil nutrient balance. Their presence in the soil in appropriate quantities is important for maintaining crop yields and farmers income, particularly in developing countries where resources of soil chemical additives may be limite [...]