98%
921
2 minutes
20
To understand the effect of forests and wetlands on air quality, the PM and PM concentration and meteorological data were collected in the forest and wetland in the Beijing Olympic Forest Park in China from May 2106 to May 2017. The blocking rates of forest and wetland to PMs were calculated under different air quality grades which were divided into six levels base on a technical regulation. And we have got three main conclusions. (1) The diurnal variations of PMs were different in the forest and wetland. It showed a first decrease and then an increase in the forest; the lowest value (PM = 40.00 µg/m, PM= 5.37 µg/m) was at approximately 12:00. In the wetlands, the lowest values were recorded at 16:00 (PM = 39.63 µg/m and PM = 15.89 µg/m). (2) Another result showed that the blocking in the forest were significantly higher than that at the wetlands (< .05), and the blocking effects were much better under lower air quality grades. The blocking rate of PM and PM was the highest when the air quality is excellent in the forest. When it comes to wetland, the highest blocking rate of PM appears at good air quality, and the highest of PM was at serious polluted. (3) In addition, there was negative correlation between PM concentrations and temperature, whereas the correlation between PM concentrations and relative humidity is positive. However, the correlation between blocking and meteorological parameters is weak.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/09593330.2018.1561759 | DOI Listing |
PLoS Negl Trop Dis
September 2025
Instituto de Diversidad y Ecología Animal (IDEA), CONICET and Universidad Nacional de Córdoba, Córdoba, Córdoba, Argentina.
Orthohantaviruses, family Hantaviridae, are zoonotic agents that pose a significant public health threat, particularly in South America, where they cause severe respiratory illnesses in humans. Despite their importance, knowledge gaps remain regarding the distributions of both the viruses and their rodent hosts in Southern South America, a region characterized by a great complexity of viral genotypes and reservoirs. This review provides an updated overview of orthohantavirus hosts and their associated viral genotypes in Argentina, Chile, Paraguay, and Uruguay.
View Article and Find Full Text PDFUnderstanding the spatial distribution of rare species is fundamental to biodiversity conservation. The black-necked crane (), a flagship species of alpine wetlands and a first-class nationally protected species in China, serves as an important indicator for ecosystem health. Based on the had data and ecological environment data, this study used the Maximum Entropy model (MaxEnt) and Random Forest model (RF) to predict the suitable distribution area of the black-necked crane.
View Article and Find Full Text PDFSci Total Environ
September 2025
Environmental Change Research Unit, Faculty of Biological and Environmental Sciences, University of Helsinki, P.O. Box 65, FI-00014, Finland.
Small lakes are common across the Boreal-Arctic zone. Due to shallowness and high shoreline-surface area ratios, they are abundant in aquatic macrophytes. Vegetated littoral zones have been suggested to count as wetlands when quantifying carbon sinks and sources, but the actual magnitude of aquatic vegetation is seldom quantified.
View Article and Find Full Text PDFGlob Chang Biol
September 2025
Elkhorn Slough National Estuarine Research Reserve, Watsonville, California, USA.
To halt and reverse the trends of ecosystem loss and degradation under global change, nations globally are promoting ecosystem restoration. Restoration is particularly crucial to coastal wetlands (including tidal marshes, mangrove forests, and tidal flats), which are among the most important ecosystems on Earth but have been severely depleted and degraded. In this review, we explore the question of how to make restoration more effective for coastal wetlands in light of the often-overlooked dynamic nature of these transitional ecosystems between land and ocean.
View Article and Find Full Text PDFNew Phytol
September 2025
Canadian Forest Service, Natural Resources Canada, Laurentian Forestry Centre, 1055 Rue du Peps, Québec, QC, G1V 4C7, Canada.
Despite the increasing number of studies investigating tree methane fluxes, the relationships between tree methane fluxes and species traits remain mostly unexplored. We measured leaf and stem methane fluxes of five tree species (Acer saccharinum, Fraxinus nigra, Ulmus americana, Salix nigra, and Populus spp.) in the floodplain of Lake St-Pierre (Québec) and examined how these fluxes vary with species traits (wood density, humidity, pH; leaf water content, pH, stomatal conductance; methanogen and methanotroph relative abundances (RAs) in leaf, wood, and bark).
View Article and Find Full Text PDF