Publications by authors named "Hong Yan Tao"
Alfalfa ( L.) grassland is prone to degradation following multi-year maintenance. Yet, its mechanism regarding the stoichiometry of carbon (C) and nitrogen (N) across plant-soil system is still unclear.
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- The study explores how iron nanostructures, specifically nanoscale zerovalent iron (nZVI), can enhance plant growth, particularly when combined with arbuscular mycorrhizal fungi (AMF).
- An optimal dosage of 1.0 g·kg of nZVI can boost maize growth significantly, while excessive amounts harm plant roots and disrupt nutrient uptake, unlike FeSO which has minimal effects.
- The appropriate nZVI facilitates the formation of a supportive nano structure on AMF, improving root colonization, gas exchange, and overall plant health, indicating nZVI plays a crucial role over traditional iron salts.
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- Plastic fragments in soil disrupt carbon cycling and reduce soil functionality, forming a noticeable "plastic footprint."
- Research found that these plastic fragments lead to decreased photosynthesis and root carbon fixation, resulting in higher carbon emissions and lower carbon sequestration.
- The study highlights the need to consider plastic pollution in current carbon assessment methods, as it significantly negatively impacts long-term carbon storage in soils.
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- Polyethylene film mulching, commonly used for soil moisture in dryland farming, can break down into microplastics of various shapes, which is a concern for soil health.
- A study analyzed how different microplastic shapes (ball, fiber, fragment, and powder) impact soil bacterial communities over two years, determining that the shape of microplastics affected bacterial abundance and diversity more than their concentration.
- The research found that microplastic shapes influenced soil processes and bacterial community assembly through both random and specific interactions, highlighting the importance of addressing microplastic shapes in soil management rather than just their quantity.
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- The study examines how the thickness of low-density polyethylene (LDPE) films affects the release rate of phthalic acid esters (PAEs), as well as their structural integrity and production efficiency in agriculture.
- Aging tests on LDPE films with varying thicknesses (0.006 to 0.015 mm) showed that thicker films had significantly less damage after exposure, with the most damage in the thinnest film (32.2% vs. 3.5% in the thickest).
- Thicker LDPE films also resulted in a lower average release rate of PAEs and improved soil water storage and thermal conditions, suggesting that increasing film thickness can enhance production efficiency while reducing environmental risks in arid regions.
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- Polyethylene film mulching is a water-saving method used in dry agriculture, but it can lead to harmful secondary pollutants accumulating in the soil over time.
- Researchers tested whether embedding plant biomass (like dried maize straw and living clover) beneath the mulch could help break down these pollutants by changing the bacterial communities in the soil.
- Results showed that adding plant biomass increased the diversity and abundance of beneficial bacteria that break down pollutants, forming distinct bacterial clusters that improved the degradation of harmful substances like chloroalkene and benzoate.
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- * Although 67.5% of farmers accepted the recycling program, only 14.5% actively participated, with attitude being the most significant factor influencing their behavior.
- * The research suggests that enhancing environmental awareness and education could improve participation rates and proposes an extended TPB model for better understanding of such recycling behaviors.
We investigated the priming effect of nanoscale zero-valent iron (nZVI) on carbon sink and iron uptake, and the possible mediation by AMF (arbuscular mycorrhizal fungi, Funneliformis mosseae) in semiarid agricultural soils. Maize seed dressings comprised of three nZVI concentrations of 0, 1, 2 g·kg and was tested with and without AMF inoculation under high and low soil moistures, respectively. The ICP-OES observations indicated that both low dose of nZVI (1 g·kg) and high dose of nZVI (2 g·kg) significantly increased the iron concentrations in roots (L: 54.
View Article and Find Full Text PDFPlastic film residuals are increasingly remaining in cultivated lands. However, it is a critical issue how residual plastic type and thickness affect soil properties and crop yield. To address this issue, in situ landfill was conducted using thick polyethylene (PEt1), thin polyethylene (PEt2), thick biodegradable (BIOt1), thin biodegradable (BIOt2) residues, and CK (control) with no residues landfill in a semiarid maize field.
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- The study investigates how sex differences affect lung adenocarcinoma (LUAD) in terms of genetic mutations, gene expression, and immune system responses, focusing on various ancestries and smoking statuses.
- It reveals that among nonsmokers, there are more male-biased mutations in Asian LUAD patients, while females show a higher mutation rate for EGFR across both Asian and Non-Asian populations.
- Additionally, the research demonstrates that immune cell types and their responses to treatments differ by sex, with females exhibiting unique sensitivity to immunotherapy linked to specific gene expressions.
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- A two-year landfill test examined how different types and thicknesses of plastic films (polyethylene and biodegradable) release microplastics and phthalic acid esters (PAEs) into agricultural soil and affect crop yields.* -
- The study found that biodegradable films, especially thin ones, led to higher microplastic counts and PAE concentrations compared to polyethylene films, with significant physical changes observed in the biodegradable materials after two years.* -
- Results showed a negative correlation between microplastic and PAE levels with maize productivity, indicating that biodegradable films pose a greater environmental risk and impact on soil health compared to thicker polyethylene films.*
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- Scientists looked at a nature-based solution that used a special layer of tiny plants (biocrust) mixed with alfalfa and maize crops to help save carbon in very damaged soils.
- They found that using this method greatly reduced soil erosion by nearly 95% and helped keep carbon and nitrogen in the soil too, while also helping to catch and store rainwater better.
- Overall, the biocrust helped plants grow better and improved the tiny life in the soil, leading to healthier soil and more carbon storage compared to regular farming methods.
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- The study investigates how the thickness of low-density polyethylene (LDPE) film affects its mechanical properties and soil health in maize fields, focusing on various thickness levels.
- Results show that greater film thickness leads to significant reductions in mechanical strength measures like tensile force and elongation, especially in thinner films.
- While thicker films improve biomass productivity in maize, they may negatively impact soil structure and nutrient levels, indicating a need for further research on the long-term effects of using thick LDPE films in agriculture.
Rhizosphere effect of nanoscale zero-valent iron (nZVI) is crucial but little reported. Maize seeds were dressed with four nZVI concentrations (0, 1.0, 1.
View Article and Find Full Text PDFBackground: The tradeoff between negative and positive interactions of facilitated species and facilitators may depend on the degree of resource availability in agroecosystems. However, the rhizospheric mechanisms driving trade-offs that occur along phosphorus (P) and water availability gradients have not yet been systematically clarified. We established three types of root isolation conditions (no barrier, nylon barrier and solid barrier) at different P and water addition levels to address the above issue in a maize-grass pea intercropping system.
View Article and Find Full Text PDFNanoscale zero-valent iron (nZVI) might generate positive and negative effects on plant growth, since it acts as either hazardous or growth-promotion role. It is still unclear whether such dual roles can be mediated by arbuscular mycorrhizal fungi (AMF) in plant-AMF symbiosis. We first identified that in 1.
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- - Environmental impact studies over 19 years showed that multi-year use of polythene film mulching (PM) led to a significant accumulation of microplastics in the soil, reaching about 2900 n kg.
- - Experiments in 2019-2020 comparing various types of organic mulching (like maize straw and living clover) with PM indicated that organic mulching can achieve similar crop productivity while reducing harmful plasticizers like phthalic acid esters (PAEs) in the soil.
- - High-throughput sequencing revealed that organic mulching improved soil microbial communities, promoting metabolic processes to break down pollutants, suggesting that organic options could effectively replace PM for sustainable farming practices.
[Research Advances in the Diagnostic Value of Rapid On-site Evaluation in Endobronchial Ultrasound-guided Transbronchial Needle Aspiration for Lung Cancer].
Zhongguo Yi Xue Ke Xue Yuan Xue Bao
December 2020
Rapid on-site evaluation(ROSE),an auxiliary sampling quality evaluation technology,can be used to evaluate the adequacy and diagnostic category of samples,judge the histological type of lung cancer,and optimize the gene type of lung cancer.Applying ROSE to endobronchial ultrasound-guided transbronchial needle aspiration of suspected lung cancer can improve the puncture success rate and diagnostic rate and reduce complications and puncture attempts.Rose performed via remote cytopathology technology or by trained respiratory specialists may become the future trends.
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