全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Catherine Delesalle , Marco de Bruijn , Sanne Wilmink ...
来源:[J].BMC Veterinary Research(IF 1.861), 2017, Vol.13 (1)Springer
摘要:... In most soils, Se is present in low concentrations, sometimes even below 0.2 mg/kg, a trend which is seen in many countries. Apart from total soil Se concentrations, soil conditions may be such that the bio-availability of Se is so low that it causes very low uptake in plants...
作者:Rosemary M. Musuva , Elizabeth Matey , Janet Masaku ...
来源:[J].BMC Public Health(IF 2.076), 2017, Vol.17 (1)Springer
摘要:The 2012 London declaration which committed to “sustaining, expanding and extending drug access programmes to ensure the necessary supply of drugs and other interventions to help control soil-transmitted helminths (STH) by 2020” has seen many countries in Africa roll out...
作者:Fikreslasie Samuel , Asalif Demsew , Yonas Alem ...
来源:[J].BMC Public Health(IF 2.076), 2017, Vol.17 (1)Springer
摘要:Soil-transmitted helminths (STHs) are widespread in underdeveloped countries. In Ethiopia, the prevalence and distribution of helminth infection varies by different exposing risk factors. We therefore investigated the prevalence of and risk factors of STHs infection in school chi...
作者:Weixin Zhang , Yuanqi Chen , Leilei Shi ...
来源:[J].Ecology and Evolution(IF 1.184), 2019, Vol.9 (13), pp.7586-7596DOAJ
摘要:Abstract Quantifying soil organic carbon (SOC) changes is a fundamental issue in ecology and sustainable agriculture. However, the algorithm‐derived biases in comparing SOC status have not been fully addressed. Although the methods based on equivalent soil mass (ESM) and mine...
作者:Yifei Sun , Changjie Zheng
来源:[J].Advances in Difference Equations(IF 0.76), 2019, Vol.2019 (1), pp.1-18Springer
摘要:Abstract(#br)It was found that the constitutive behaviour of granular soil was dependent on its density and pressure (i.e. material state). To capture such state dependence, a variety of state variables were empirically proposed and introduced into the existing plastic potential ...
作者:Soma Giri , Abhay Kumar Singh , Mukesh Kumar Mahato
来源:[J].Journal of Earth System Science(IF 0.695), 2017, Vol.126 (4)Springer
摘要:The study was intended to investigate the heavy metal contamination in the agricultural soils of the copper mining areas in Singhbhum shear zone, India. The total concentrations of the metals were determined by inductively coupled plasma-mass spectrometer (ICPMS). Pollution level...
作者:Daniel Pflugfelder , Ralf Metzner , Dagmar van Dusschoten ...
来源:[J].Plant Methods(IF 2.667), 2017, Vol.13 (1)Springer
摘要:Root systems are highly plastic and adapt according to their soil environment. Studying the particular influence of soils on root development necessitates the adaptation and evaluation of imaging methods for multiple substrates. Non-invasive 3D root images in soil can be obtained...
作者:L C López-Teloxa , A Cruz-Montalvo , J V Tamaríz-Flores ...
来源:[J].Journal of Earth System Science(IF 0.695), 2017, Vol.126 (7)Springer
摘要:The soil organic carbon (SOC) was determined in 40 sites at two depths (0–10 and 10–20 cm) for different uses of soil during one year (February 2014–February 2015). The total SOC stored in the analysed soil from the Ramsar site was \(9{,}67 \times 10^{5}\) t, from which ...
作者:Surya Gupta , Suresh Kumar
来源:[J].Journal of Earth System Science(IF 0.695), 2017, Vol.126 (3)Springer
摘要:Climate change, particularly due to the changed precipitation trend, can have a severe impact on soil erosion. The effect is more pronounced on the higher slopes of the Himalayan region. The goal of this study was to estimate the impact of climate change on soil erosion in a w...
作者:Yuping Xiang , Hongxia Du , Hong Shen ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2014, Vol.59 (24), pp.2966-2972Springer
摘要:Abstract(#br)Field investigations were conducted to study the temporal and spatial distribution characteristics of total culturable bacteria (TCB) and its relationship with methylmercury (MeHg) in the soils of the water level fluctuation zone of the Three Gorges Reservoir. Di...

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