Results 1 to 10 of about 490,724 (266)

Source Apportionment and Model Applicability of Heavy Metal Pollution in Farmland Soil Based on Three Receptor Models

open access: yesToxics, 2023
The identification of the source of heavy metal pollution and its quantification are the prerequisite of soil pollution control. The APCS-MLR, UNMIX and PMF models were employed to apportion pollution sources of Cu, Zn, Pb, Cd, Cr and Ni of the farmland ...
Jiawei Ma   +6 more
doaj   +1 more source

Effect of Hypoxic Stress and Levels of Mn on the Physiology and Biochemistry of Phyllostachys praecox

open access: yesToxics, 2022
Hypoxic environments have an adverse effect on the growth and development of P. praecox, and this is accompanied by the production of reducing substances such as Fe and Mn.
Jiawei Ma   +5 more
doaj   +1 more source

Effects of Hypoxia Stress on Growth, Root Respiration, and Metabolism of Phyllostachys praecox

open access: yesLife, 2022
Hypoxia affects plant growth, hormone content, various enzyme activities, cell structure, peroxide production, and metabolic level, therefore reducing crop yield.
Jiawei Ma   +5 more
doaj   +1 more source

Effects of Shellfish and Organic Fertilizer Amendments on Soil Nutrients and Tea Yield and Quality

open access: yesToxics, 2023
Soil acidification in tea plantations leads to an excessive heavy metal content in tea, decreasing its yield and quality. How to apply shellfish and organic fertilizers to improve soil and ensure the safe production of tea is still not clear.
Wenbin Liu   +5 more
doaj   +1 more source

NRT1.1 Dual-Affinity Nitrate Transport/Signalling and its Roles in Plant Abiotic Stress Resistance

open access: yesFrontiers in Plant Science, 2021
NRT1.1 is the first nitrate transport protein cloned in plants and has both high- and low-affinity functions. It imports and senses nitrate, which is modulated by the phosphorylation on Thr101 (T101).
Xian Zhi Fang   +5 more
doaj   +1 more source

Spatial distribution, sources, and risk assessment of potentially toxic elements in cultivated soils using isotopic tracing techniques and Monte Carlo simulation

open access: yesEcotoxicology and Environmental Safety, 2023
Potentially toxic elements (PTEs) in cultivated lands pose serious threats to the environment and human health. Therefore, improving the understanding of their distinct sources and environmental risks by integrating various methods is necessary.
Jiawei Ma   +6 more
doaj   +1 more source

Effects of stabilizing materials on soil Cd bioavailability, uptake, transport, and rice growth

open access: yesFrontiers in Environmental Science, 2022
Cadmium, a widespread toxic heavy metal in farmland soils, is harmful to human health. A field experiment was conducted to investigate the effects of biochar and biochar-based fertilizers on soil pH, organic matter, and available Cd, as well as rice Cd ...
Meizhen Xu   +6 more
doaj   +1 more source

Identification of heavy metal pollutants and their sources in farmland: an integrated approach of risk assessment and X-ray fluorescence spectrometry

open access: yesScientific Reports, 2022
Investigation and assessment of farmland pollution require an efficient method to identify heavy metal (HM) pollutants and their sources. In this study, heavy metals (HMs) in farmland were determined efficiently using high-precision X-ray fluorescence ...
Xiaosong Tian   +4 more
doaj   +1 more source

Heteropolyacid-loaded MOF-derived mesoporous zirconia catalyst for chemical degradation of rhodamine B

open access: yesGreen Processing and Synthesis, 2023
In this article, silicotungstic acid (STA)-loaded metal–organic framework (MOF)-derived composites (C-STA@ZrO2) were successfully synthesized by simple strategies.
Wang Jialu   +8 more
doaj   +1 more source

Effect of plant extracts and citric acid on phytoremediation of metal-contaminated soil

open access: yesEcotoxicology and Environmental Safety, 2021
Application of activating agents can significantly improve efficiency of plants for remediation of soils contaminated by heavy metals, however, damage to soil and plants limits application of traditional activating agents.
Yaqian Li   +11 more
doaj   +1 more source

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