
Wen-Tao Yang杨文弢Guizhou University · College of Resource and Environmental Engineering
Wen-Tao Yang杨文弢
Doctor of Philosophy
Looking for potential collaborators to publish research papers as co-authors.
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64
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Introduction
The fate of heavy metals in rice fields, remediation strategies for heavy metal contaminated soil, health risk assessment, soil environmental thresholds and mechanisms of the influence of soil organic matter on heavy metals.
Additional affiliations
September 2018 - December 2022
Publications
Publications (64)
Cadmium (Cd) contamination in rice fields has been recognized as a severe global agro-environmental issue. To reach the goal of controlling Cd risk, we must pay more attention and obtain an in-depth understanding of the environmental behavior, uptake and translocation of Cd in soil-rice systems. However, to date, these aspects still lack sufficient...
A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Agriculture".
Deadline for manuscript submissions: 31 December 2024
https://www.mdpi.com/journal/sustainability/special_issues/A0LS88E074
Dear Colleagues,
As a result of various mining activities and intensive agricultural practices, agric...
Tetracycline (TC) is widely used in the aquaculture and healthcare industries. However, massive TC is discharged into the surrounding aquatic environment through prodrugs or parent compounds, as neither humans nor animals can metabolize it directly. TC contamination of water has become a significant worldwide environmental challenge. In this study,...
Nitrate nitrogen fertilizer was usually used to mitigate arsenic (As) release and mobilization in the anaerobic contaminated paddy soil. However, the effect of the interplay between nitrate fertilizer and biochar on As availability as well as the involved mechanism were poorly understood. Herein, the effects and mechanisms of biochar, nitrate ferti...
Phytoremediation is a strategy for the amelioration of soil heavy metal contamination that aligns with ecological sustainability principles. Among the spectrum of phytoremediation candidates, woody plants are considered particularly adept for their substantial biomass, profound root systems, and non-participation in the food chain. This study used...
The environmental problems caused by microplastics (MPs) are becoming more serious. Sediments are important environmental assets and tend to accumulate MPs and nitrogen (N). Microbes are crucial for the cycling of N in benthic ecosystems, and the presence of MPs can alter the microbial community and N transformation. Moreover, various factors can s...
Biochar (BC) has shown great potential in remediating heavy metal(loid)s (HMs) contamination in paddy fields. Variation in feedstock sources, pyrolysis temperatures, modification methods, and application rates of BC can result in great changes in its effects on HM bioavailability and bioaccumulation in soil–rice systems and remediation mechanisms....
The purification of industrial wastewater contaminated by lead (Pb) and cadmium (Cd) has become a global hot research topic at present. In this study, a novel phosphate rock-magnetic biochar (PR-MCLB) was prepared from phosphate rock (PR) and cow litter, and its removal efficiency and adsorption mechanisms for Pb 2+ and Cd 2+ in aqueous solution we...
Call for papers:“Heavy Metals in Agricultural Soils: Risk Assessment, Public Health Hazards and Mitigation Strategies”
Manuscript submission is now open for a new article collection I am co-editing “Heavy Metals in Agricultural Soils: Risk Assessment, Public Health Hazards and Mitigation Strategies”. On behalf of the editorial team, we would like...
Dear Colleagues,
Human activities such as overexploitation of resources in mining, metallurgy, and agriculture have resulted in various degrees of heavy metal contamination in agricultural soils in regions of the world. These contaminants in soils have been of considerable concern to governments and scholars because of their susceptibility to hum...
Greenhouse gas emissions (GHG) and nutrient loss are considered to be critical environmental issues facing rice field ecosystems. Biochars (BCs), as carbon-rich materials with porous structures, large specific surface areas, and enriched surface functional groups, have shown great potential for improving environmental problems in rice fields and in...
Cadmium (Cd) contamination of rice fields is a global agro‐environmental issue. Rapeseed residue organic fertilizer (RROF) as a potential strategy to minimize Cd accumulation in rice planted in acidic soil. The results showed that application of 7.5–30.0 g kg–1 RROF increased the soil pH value by 0.01–0.55 units, increased soil organic matter (OM)...
Cadmium (Cd) is considered the primary dietary toxic element. Previous studies have demonstrated significant differences in heavy metal accumulation among crop species. However, this information in karst areas with low heavy metal activity is missing. In this study, the uptake and accumulation characteristics of cadmium in soil–crop samples of grou...
Heavy metal(loid) contamination of farmland is a crucial agri−environmental problem that threatens food safety and human health. In this study, we examined the contamination levels of heavy metals (As, Pb, Cd, Hg, Cr) in farmland and foods (rice, maize, and cabbage) in the core of Asia’s largest karst region and assessed the potential health risks...
Cadmium (Cd) is an unnecessary dietary toxin that is harmful to human health. The Cd translocation in soil-crops system varies greatly depending on different soil matrices; therefore, a valuable method that could accurately evaluate soil Cd thresholds needs to be proposed immediately. In the southwestern part of China, a typical karst mountainous a...
To investigate the dynamic effects of organic fertilizer application on the agronomic traits of rice (Oryza sativa L.), soil physicochemical properties and soil Cd activity under excess cadmium (Cd) exposure, this study was conducted to simulate a paddy system under different organic fertilizer application rates using exogenous spiked Cd soil as th...
An extensive investigation of heavy metal (Cd, Hg, As, Pb, and Cr) levels in 137 pairs of soil-maize/rice samples was conducted in cultivated land from a typical karst mountain area in the Northwest of Guizhou Province. A health risk assessment model was used to assess the health risks of those areas, and the environmental benchmarks of heavy metal...
Purpose
The overexploitation of resources such as mining and metallurgical and agricultural resources has resulted in heavy metal accumulation and soil acidification. Studying the spatial distribution, food chain translocation, human health risks, and environmental thresholds of heavy metals in agroecosystems is essential for the management and mit...
Cadmium (Cd) is vital dietary toxins that are harmful to human health. The Cd translocation in soil-crops system varies greatly depending on different soil matrices; therefore, a valuable method that could accurately evaluate soil Cd thresholds needs to be proposed immediately. In the southwestern part of China, a typical karst mountainous area of...
A greenhouse pot experiment was conducted to investigate the effects of organic fertilizer application on Cd activity in soil and Cd accumulation in rice in paddy soils with different levels of contamination from varying Cd sources in Guizhou Province (the soil types are NJ, which is a soil with a high geological background of Cd; and QX and JZ, wh...
Abstract: A field experimental were conducted in acid paddy soil to study the influence of the fermented rapeseed residue as an organic fertilizer on soil organic matter (OM), H value, microbial biomass carbon and nitrogen (MBC and MBN) , three enzymes (acid phosphatase, ACP, urease, UA, and dehydrogenase, DH), and occurrence mode of Cd in soil, Pa...
Rapeseed (Brassica napus L.) is a winter oil crop and biodiesel resource that has been widely cultivated in the southern part of China. Applying rapeseed residue (RSD) to summer rice fields is a common agricultural practice under rice−rapeseed double cropping systems. However, in Cd−contaminated paddy fields, the influence mechanisms of this agricu...
H. Li Q. Wang Ruoran Jia- [...]
B. Liao
Apot experiment was performed to verify the effects of exogenous zinc (Zn) on uptake and accumulation of cadmium (Cd) in various rice organs, to study the changes of contents of Cd and Zn in soils, iron plaque, and various rice organs due to exogenous Zn, and to explore the interaction of Zn and Cd in rice paddy systems. Two rice cultivars Xiangwan...
Q. Wang Ruoran Jia H. Li- [...]
B. Liao
【Objective】The objectives of this study were to explore the effects of Cd stress on Cd accumulation in brown rice at different growth stages (tillering stage, jointing stage, booting stage, filling stage, dough stage, and maturing stage) of rice plants, to clear and definite the key growth stages of rice plants for Cd accumulating in brown rice, so...
Ruoran Jia H. Li Q. Wang- [...]
B. Liao
Content of soil base cation (BC) was one of the important factors affecting soil fertility and soil Cd bioavailability. To investigate the effects of BC on migration,transport,and accumulation of soil Cd in rice field system,a pot experiment was conducted with two simulated Cd-contaminated soils (L:0.5 mg•kg ⁻¹ ; M:1.5 mg•kg ⁻¹ ). Based on the mole...
An in-situ experiment was conducted in Beishan Town, Changsha, Hunan, an area with paddy soil contaminated severely with Cd and partly with Zn, to study the effects of a combined amendment (calcium carbonate + metakaolin + fused calcium-magnesium phosphate) stabilizing Cd and/or Zn and on the accumulation of Cd and/or Zn in rice organs and to evalu...
A pot experiment was carried out to investigate the remediation of paddy soils contaminated with both Cd and As. The effects of a soil additive (HZB: hydroxyapatite + zeolite + biochar) on the chemical speciation of Cd and As in the soil and on the accumulation and translocation of these two elements in rice plants were studied. The application of...
In order to study the effects of magnetic biochar (BC-Fe, made from rice husks) on the adsorption of Cd²⁺ and Zn²⁺ in practical heavy metals wastewater, the solution pH, dosage, adsorption time, and rotation rate were investigated by means of an orthogonal experiment. Meanwhile, the optimal operating conditions for practical wastewater treatment we...
Rice consumption is considered the main source of human dietary Cd intake in Southeast Asia. This study aimed to investigate Cd uptake, accumulation, and remobilization in iron plaque and rice (Oryza sativa L. cv. 'Xiangwanxian 12') tissues at different growth stages. A pot experiment was performed in two Cd-contaminated paddy soils. Cd concentrati...
The impacts of silicon (Si) on cadmium (Cd) bioavailability in soil and Cd accumulation in rice plants were investigated in pot experiments with rice (Oryza sativa L.) cultivation. Silicon fertilizer as the base manure (Si 0, 15, 30, and 60 mg·kg⁻¹) was added in simulated slightly Cd-contaminated soil (total soil Cd of 0.72 mg·kg⁻¹) and severe Cd-c...
A soil spiking experiment at two Cd levels (0.72 and 5.20 mg kg(-1)) was conducted to investigate the effects of rapeseed cake (RSC) at application rates of 0%, 0.75%, 1.5%, and 3.0% (w/w) on iron plaque formation and Cd uptake by rice (Oryza sativa L.) seedlings. The use of RSC did result in a sharp decrease in soil bioavailability of Cd and a sig...
An in-situ paddy experiment was conducted to study the remedying effects of a combined amendment(calcium carbonate+diatomite+ferric sulfate) on Cd bioavailability in soil and Cd accumulation in rice for spring and autumn rice planted in a certain Cd contaminated paddy soil in Beishan Town, Changsha, Hunan Province. The results showed that: Applicat...
This paper studied the effects of two amendments (iron sulfate [Fe2 (SO4)3] and calcium carbonate [CaCO3]) on the bioavailability of Pb, Cd and As in a garden soil and on the migration and accumulation of Pb, Cd and As in pepper through an in-situ experiment planting pepper plants. The results indicated that: ① Addition of these amendments signific...
A pot experiment was conducted to investigate the effects of calcium magnesium phosphate fertilizer(CMPF) at application rates of 0, 0.2, 0.4, and 0.8 g·kg⁻¹ on soil toxicity characteristic leaching procedure(TCLP)-extractable Ca, Mg, and Cd contents, and those of elements accumulation and distribution in rice plant(Oryza sativa L. Xiangwanxian 12,...
The purpose of this study was to study the removal rates of soil Pb and Cd and the changes in species of these two elements before and after extracting with three methods(TE, traditional extracting soil with EDTA-Na2 solution; UE-1, ultrasonic waves applied to soils first and then extracting soils with EDTA-Na2 solution; UE-2, ultrasonic waves and...
The main objectives of the present study were to investigate the levels of arsenic (As) in 23 vegetable species planted on As-polluted soil and assess the human health risks of contaminated vegetable consumption. The target hazard quotient (THQ) and target cancer risk (TR) methods were employed to evaluate the human health risks posed by exposure t...
The effects of different pH values of irrigation water (pH=3.5, 4.5, 5.5 and 6.5) on soil pH values, soil Cd bioavailability and Cd contents in different tissues of two rice varieties (XWX12, Xiangwanxian 12, a conventional rice, and WY46, Weiyou 46, a hybrid rice) were studied through a pot experiment. The results showed that pH values of irrigati...
Reuse of the waste in agriculture is a hot study recently, however, the environmental impact assessment for the reuse was rarely reported. Taken Fuzhou jasmine plantation as the case study, the carbon emissions and comprehensive global warming potential were determined after the reuse of sole straw and straw amended with gypsum slag, biochar, steel...
W. Cao Hang Zhou Glenn Deng- [...]
B. Liao
In this study, rice husk biochar was modified by acid and loaded with magnetic nano-Fe3O4, forming a new adsorbent material (named BC-Fe). A one-factor batch experiment was conducted using BC-Fe to remove Pb²⁺ ions from simulated wastewater, considering such factors as contact time, solution pH, adsorbent dose, initial Pb²⁺ concentration, and tempe...
A pot experiment was conducted to study the effects of four modes of water managements on soil Eh values,bioavailability of soil Cd,migration and accumulation of Cd in rice.These four modes of water managements were moistening throughout the entire period of rice growth (M),moistening before filling stage and flooding after filling stage (M-F),floo...
The objectives of the present study were to investigate the mitigation of lead (Pb), cadmium (Cd), and arsenic (As) in a multi-metal contaminated soil and their accumulation in rice plants (Oryza sativa L., cv II You 93) using a combined amendment (CMF, calcium carbonate + metakaolin + fused calcium–magnesium phosphate fertilizer). The results show...
This paper studied the effects of applying two combined amendments LST (limestone+meerschaum+titanium dioxide) and LSF (limestone+meerschaum+ferric sulfate) at different ratios of 0, 1, 2, 4, 8 and 16 g·kg⁻¹ on bioavailability Pb, Cd and As in paddy soil and bioaccumulation in rice plants through a pot experiment planting rice. The results indicate...
The objective of the present study was to investigate the effects of rapeseed dregs (RSD, a commonly organic fertilizer in rural China) at application rates of 0, 0.75, 1.5, and 3.0 % on Cd availability in soil and its accumulation in rice plants (Oryza sativa L., Xiangwanxian 12#, and Weiyou 46#) by means of a pot experiment. The results showed th...
Pot experiments were carried out to study the influences of different concentrations of exogenous Zn on accumulation of Cd in various rice organs of low Cd accumulation cultivar Xiang-Wanxian 12 (XWX12) and high Cd accumulation cultivar Wei-You 46 (WY 46) exposed to soil with medium and serious Cd pollution. The results showed that:In the soil with...
Glenn Deng Hang Zhou W. Cao- [...]
B. Liao
Carbonized rice husk (CRH-I) was first prepared from the anoxic pyrolysis of rice husk at 600℃, and then modified with an alkali to form CRH-II and loaded onto Fe3O4 nanoparticles. The BET analysis of CRH-II compared to CRH-I revealed about 30% increase in the specific surface area to 182.03 m²·g⁻¹ and a 6-fold expansion of the micro-surface area a...
A three-year in-situ experiment was conducted in a paddy soil near a mining area in southern Hunan in order to study the persistence of combined amendment of limestone+sepiolite (marked as LS) stabilizing Pb, Cd, Cu and Zn in polluted paddy soil. LS with ratios of 0, 2, 4, and 8 g·kg⁻¹ was applied once to the paddy soil, and rice was subsequently p...
In order to study the persistence of a combined amendment (LS, limestone+sepiolite) for remedying paddy soil polluted with the heavy metals Pb and Cd, a three-year in-situ experiment was conducted in a paddy soil near a mining area in southern Hunan, China. LS was applied at rates of 0, 2, 4, and 8g/kg (w/w); rice was subsequently planted for the t...
The objectives of the present study were to investigate heavy metal accumulation in 22 vegetable species and to assess the human health risks of vegetable consumption. Six vegetable types were cultivated on farmland contaminated with heavy metals (Pb, Cd, Cu, Zn, and As). The target hazard quotient (THQ) method was used to assess the human health r...
Pot experiments were conducted to study the effects of a combined amendment (LMF, limestone+metakaolin+calcium magnesium phosphate fertilizer) on the bioavailability of Pb, Cd, and As in polluted paddy soil and their accumulation in brown rice by using a paddy soil polluted with heavy metals and As collected from a mining area in southern Hunan. Th...
For remediation of paddy soil complexly contaminated with cadmium and arsenic, a pot experiment with rice planting in the paddy soil collected from southern Hunan Province, China, was conducted to study effects of a combined soil amendment, HZB (hydroxyhistidinet + zeolite + biochar) on chemical forms of Cd and As in the tested soil and on accumula...
An in-situ study aiming at remedying arid land complexly polluted with Pb and Cd by using combined amendment LS (a mixture of limestone and sepiolite with a ratio of 2:1) was conducted in a mining area in southern Hunan, China. The main objectives of this study were to discuss the effects of LS application at different amounts (0, 2, 4, 8 g·kg-1) o...
This paper studied the effects of combined amendment on pH changes and transformation of cadmium (Cd) / lead (Pb) species in paddy soil and changes of Cd/Pb contents in brown rice. Combined amendment of LS (limestone+sepiolite) was applied on two types of rices (Huanghuazhan and Fengyou 9) in an in-situ experiment. Results showed that applying LS c...
In order to study the effects of a combined amendment (LS, limestone + sepiolite) on stabilization of heavy metals (Pb and Cd) in soil and on accumulation of heavy metals in different rice organs, a field experiment was conducted in paddy soils near two mining areas, marked as Area A and Area B, respectively, in southern Hunan, in which LS was appl...
Speciation and bioavailability of arsenic in the rhizosphere and non-rhizosphere soils at different growth stages (tillering stage, jointing stage, booting stage, filling stage and maturing stage) of rice (Oryza sativa L.) were studied using toxicity characteristic leaching procedure (TCLP) and arsenic speciation analysis. Pot experiments were cond...
Stabilization of heavy metals in situ was investigated. Two combined amendments (LS, limestone+sepiolite; HZ, hydroxyhistidine+zeolite) were applied at ratios of 0.2%, 0.4%, and 0.8% (w/w) to paddy soil with multi-metal (Pb, Cd, Cu, and Zn) contamination. The effects of these two combined amendments on heavy metal bioavailability in soil, and on up...
Stabilization of heavy metals in situ was investigated. Two combined amendments (LS, limestone + sepiolite; HZ, hydroxyhistidine + zeolite) were applied to paddy soil with multi-metal (Pb, Cd, Cu, and Zn) contamination at ratios of 0.2%, 0.4%, and 0.8% (w/w). The effects of these two combined amendments on heavy metal bioavailability in soil, and o...
Questions
Questions (4)
The number of citations shown in RG for a manuscript for which I am a corresponding author is missing a lot more than in the WOS data, how does RG guarantee such accuracy?
Heavy metals in soils with a high geological background are usually considered to be of natural origin, while increases in soil heavy metals due to industrial and agricultural activities are considered to be anthropogenic contamination. How can you accurately identify both types of soil?
Microplastics (MPs) are widely present in agricultural soils as a emerging pollutant. Meanwhile, the problem of heavy metal pollution cannot be ignored. Is the co-contamination between these two types of pollutants a cause for concern?
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