Effect of indole-3-acetic acid supplementation on the physiology of Lolium perenne L. and microbial activity in cadmium-contaminated soil

Environmental Science and Pollution Research - Cadmium (Cd) pollution has led to a serious deterioration in soil quality, plant growth, and human health. Therefore, restoration of soil quality is...     

An insight into the drag effect of water,land, and energy on economic growth across space and time: the application of improved Solow growth model

Environmental Science and Pollution Research - Economies that depend on natural resources can experience a resource drag effect when economic growth is limited by constraints on the availability of...     

SDG-oriented multi-scenario sustainable land-use simulation under the background of urban expansion

Environmental Science and Pollution Research - With the continuous improvement of urbanization level and the continuous expansion of city scale, there are some unreasonable land development and...     

Assessing economic sustainability and ecological efficiency with genuine progress indicator: a case study of the Yangtze River Delta from 2000 to 2018

To achieve urban sustainability, it is critical to enhance the environment, economy, and society simultaneously. This study adopted the revised genuine progress indicator (GPI) and ecological footprint (EF) to evaluate the ecological efficiency and economic sustainability of the Yangtze River Delta from 2000 to 2018. Spatial analysis was utilized to identify spatial autocorrelation. A total of 27 cities were then partitioned through k-means cluster analysis. The results showed that GPI and ecological efficiency improved rapidly, but economic sustainability showed a downward trend. GPI and GDP had a high degree of spatial correlation, especially in Suzhou-Wuxi-Changzhou Metropolitan Area. However, no spatial correlation existed between GPI and EF. The city with high GEE can reach 3000 $/gha, indicating the city consumed 1 global hectare to create $3000 of genuine economic growth. Shanghai, Hangzhou, and Taizhou were cities with the highest level of economic sustainability and ecological efficiency. The spatiotemporal characteristics of economic sustainability and ecological efficiency revealed in this study will provide theoretical guidance for alleviating ecological pressure and promoting economic sustainable development.

     

Impact of air pollutants on hospital visits for pediatric asthma in Fuzhou city,southeast China

Environmental Science and Pollution Research - Rapid social development in China has resulted in severe air pollution and adverse impacts on people’s health. Although studies have been...     

Impact of particle sizes on health risks and source-specific health risks for heavy metals in road dust

Environmental Science and Pollution Research - To analyze the impact of particle sizes on sources and related health risks for heavy metals, road dust samples in Beijing were collected and sifted...     

Vitamin D mediates the association between acrylamide hemoglobin biomarkers and obesity

Environmental Science and Pollution Research - Mediation analysis aims to discover the role of intermediate variables from exposure to disease. The current study was performed to evaluate how...     

Evaluation of phoxim toxicity on aquatic and zebrafish intestinal microbiota by metagenomics and 16S rRNA gene sequencing analysis

Environmental Science and Pollution Research - Phoxim is one of the main organophosphorus pesticides used in agricultural production. However, little information is known about how it affects the...     

Near-surface wind profile test based on accuracy verification of UAV anemometer lifting height in an urban fringe built-up area

Environmental Science and Pollution Research - Multirotor UAVs (unmanned aerial vehicles) have been widely used in urban vertical wind environment testing, whereas less attention has been given to...     

小型四旋翼无人机悬停状态气动干扰与安全间隔研究*

为保证小型旋翼无人机近距编队悬停状态的安全性,采用数值模拟方法研究不同横向和纵向间隔双机悬停流场特征和气动参数变化规律,通过与实验结果对比,验证数值仿真方法的准确性。研究结果表明:无人机内部旋翼间的气动干扰会导致整机单旋翼拉力降低、扭矩增大,使整机气动效率下降;当双机无横向间隔时,双机下洗流场保持对称,同时2股下洗流叠加,呈现较明显的横向扩张趋势,此时后机所受气动影响主要为拉力损失,当纵向间隔大于5 D时,该影响基本消失;当横向间隔X=1 D时,位于尾流区一侧的旋翼拉力减小,后机所受俯仰力矩作用显著,无人机有侧翻风险;横向间隔X≥2 D时,2机之间气动干扰较弱,为较安全区域。