Article
Plant Sciences
Qunfeng Zhang, Dandan Tang, Xiangde Yang, Saipan Geng, Ying He, Yupei Chen, Xiaoyun Yi, Kang Ni, Meiya Liu, Jianyun Ruan
Summary: This study demonstrates the importance of magnesium (Mg) fertilizer in enhancing tea yield and quality, with plant availability of Mg being influenced by plant species, soil characteristics, and Mg status. Moreover, CaCl2 was identified as an effective method for extracting plant-available Mg, while total nitrogen and Mg status in soils prior to tea cultivation could impact and predict Mg fertilizer use efficiency.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Bo Wen, Ruiyang Li, Xue Zhao, Shuang Ren, Yali Chang, Kexin Zhang, Shan Wang, Guiyi Guo, Xujun Zhu
Summary: The study found that the soil pH in the study area was suitable for cultivating tea plants, and the relationship between soil environment and key biochemical substances in tea showed different curve shapes. Soil management measures could be implemented to improve tea quality.
Article
Environmental Sciences
Xiaoyun Yi, Linfei Ji, Zhenmin Hu, Xiangde Yang, Haitao Li, Yanyan Jiang, Tiehu He, Yiyang Yang, Kang Ni, Jianyun Ruan
Summary: Tea plantation can cause soil degradation, but organic amendments can improve soil quality and tea production. However, the application of organic amendments also increases the risk of heavy metal contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Shuqin He, Hui Jia, Zicheng Zheng, Tingxuan Li, Ziteng Luo, Yunqi Zhang, Yong Wang
Summary: Soil nematodes play a crucial role in soil health evaluation and monitoring soil food web changes. The distribution and abundance of nematode communities are closely related to the age of tea plantations and soil components. Resource availability and quality are important factors determining nematode communities. The age of tea cultivation affects the degeneration of the soil food web.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yanyan Jiang, Xiangde Yang, Kang Ni, Lifeng Ma, Yuanzhi Shi, Yu Wang, Yanjiang Cai, Qingxu Ma, Jianyun Ruan
Summary: Nitrogen (N) application had negative effects on soil available phosphorus (P) while increasing the activity of phosphatases in a tea plantation system. The abundance of ppa gene increased but phoD gene decreased with N application levels. Soil pH was found to be a key factor influencing microbial communities related to ppa and phoD genes. Long-term N application indirectly reduced soil P availability by altering the abundances of phoD-harboring microbial communities. Periodic phosphorus supplementation is recommended in tea plantations, particularly under high N application levels.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Plant Sciences
Ying Huang
Summary: Accurately predicting soil moisture content in tea plantations is crucial for optimizing irrigation practices and improving crop productivity. Traditional methods are costly and labor-intensive, while machine learning models are limited by insufficient data. To address these challenges, an improved SVM-based model was developed, incorporating novel features and enhancing performance with the BES method for hyper-parameter optimization. Experimental results demonstrated its superior performance compared to traditional SVM approaches and other algorithms.
Article
Agronomy
Ting Wang, Yu Duan, Xiaogang Lei, Yu Cao, Lefeng Liu, Xiaowen Shang, Menghe Wang, Chengjia Lv, Yuanchun Ma, Wanping Fang, Xujun Zhu
Summary: Microorganisms have important roles in soil-ecosystem multifunctionality, but their contribution to ecosystem multifunctionality in tea-plantation ecosystems is unclear. A field experiment was conducted to assess the effects of different intercropping patterns on soil rare and abundant taxa. The results showed that intercropping tea plantation with legume plants improved soil-ecosystem multifunctionality by altering the soil environment, benefiting nutrient absorption and quality improvement of tea leaves. Intercropping practices significantly changed the composition and diversity of bacterial and fungal communities, and rare taxa had higher diversity and stronger relationships with ecosystem multifunctionality compared to abundant taxa.
Article
Microbiology
Guoyou Li, Shaoxian Zhu, Jiang Long, Honglin Mao, Yonghong Dong, Yan Hou
Summary: Soil microbial diversity and functions have a great impact on plant growth and development. The interactions between tea trees and soil microbiota can be linked with planting patterns and management strategies, whose effects on soil microbial community structure and metabolites are still unclear. This study compared the soil microbial composition and metabolites among three tea production systems and found significant differences among them. The changes in soil microorganisms caused by management and planting patterns may affect soil quality through corresponding changes in metabolites.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Yingying Zhang, Jinbo Zhang, Stephen J. Chapman, Huaiying Yao, Ningguo Zheng, Christoph Mueller
Summary: The study found that the nitrogen transformation rates in tea plantation soils increased with planting age; nitrate production was higher in forest soils compared to tea soils; and archaea played a dominant role in nitrification in tea plantation soils.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Microbiology
Shouke Zhang, Junqia Kong, Longfei Chen, Kai Guo, Xudong Zhou
Summary: This study analyzed the effects of different planting years on the structures and functions of soil microbiomes in Camellia oleifera plantations. The results showed that with the increase in planting years, there was an accumulation of PSMs, which had negative effects on the physicochemical properties, microbial community structures, and functions of the soil. The core functions of the soil microbiomes shifted towards PSM metabolisms, while microbial pathways involved in cellulose degradation were inhibited.
MICROBIOLOGY SPECTRUM
(2022)
Article
Horticulture
Peng Yan, Chen Shen, Zhenhao Zou, Jianyu Fu, Xin Li, Liping Zhang, Lan Zhang, Wenyan Han, Lichao Fan
Summary: This study found that both bamboo biochar and rice biochar applied at rates of 2.5% and 5.0% significantly improved tea growth, increased plant P, K, and Mg concentrations, and reduced soil Mn and Cu concentrations. This suggests that biochar can be used as a soil amendment to promote tea growth by supplying essential nutrients and reducing heavy metal concentrations.
SCIENTIA HORTICULTURAE
(2021)
Article
Forestry
Anjie Liang, Xinyi Wen, Wenjing Yu, Shunde Su, Yongming Lin, Hailan Fan, Jun Su, Chengzhen Wu
Summary: Long-term monocultures of tea and excessive use of chemical fertilizer degrade soil quality. This study explored the effects of Pinus and Chinese fir on soil nutrients and fungal communities in ex-tea plantations that were reforested with pure forest and mixed forest modes. After reforestation, the mixed forest showed increased vegetation index and improved soil organic carbon, total nitrogen, and N:P ratio compared to the pure forest. The fungal communities in the mixed forest exhibited changes in composition, leading to increased symbiotrophs and decreased complex nutrient types. This study highlights the importance of reforestation with a mixed forest to improve degraded soils in ex-tea planting areas.
Article
Agronomy
Yi Luo, Yongli Zhang, Yejun Wang, Yulong Sun, Xianjiang Xia, Youjian Su, Wanyou Liao
Summary: The application of biochar is promising to alleviate soil acidification and improve soil fertility, but its effect on ammonium nitrogen (NH4+-N) content, which is crucial for tea tree growth, is still uncertain. In this study, a pot trial was conducted to investigate the response of soil NH4+-N content to the combined application of biochar and pruned tea plant litter. The results showed that the addition of biochar and tea plant litter significantly increased the NH4+-N content, with the proportion of ammonia oxidation phyla remaining unchanged. Soil pH, soil organic carbon, and the ratios of organic carbon to total nitrogen and alkaline hydrolyzable nitrogen were identified as important factors influencing the separation of the biochar + tea plant litter treatment from the control and biochar-only treatments. These findings emphasize the importance of returning pruned materials with biochar application in tea plantation ecosystems.
Article
Environmental Sciences
Xiangde Yang, Xiaoyun Yi, Kang Ni, Qunfeng Zhang, Yuanzhi Shi, Linbo Chen, Yuanyan Zhao, Yongli Zhang, Qingxu Ma, Yanjiang Cai, Lifeng Ma, Jianyun Ruan
Summary: This study investigated the SOC content in the major tea-producing areas of China and found significant differences in SOC among different regions, climatic zones, and cultivars. Yunnan province had the highest SOC content, the southwest tea-producing area had the highest SOC content among the four regions, and the tropical region had the highest SOC content. Additionally, large-leaf cultivars had higher SOC content compared to middle or small-leaf cultivars. Total nitrogen and available aluminum were identified as the main factors influencing SOC differences. The findings provide valuable information for fertilizer strategies and carbon sequestration policies in tea plantations.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Xueying Feng, Quanlong Wang, Yuhuan Sun, Shuwu Zhang, Fayuan Wang
Summary: This study investigated the impacts of different types of Microplastics (MPs) on Pb-Zn contaminated soil and found that MPs, especially at a dose of 2%, decreased the richness and diversity of bacterial communities, altered microbial community composition, and significantly affected soil properties and heavy metal availability. The effects were dependent on the type and dose of MPs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Plant Sciences
Jianghua Ye, Yuhua Wang, Jiaqian Kang, Yiling Chen, Lei Hong, Mingzhe Li, Yun Jia, Yuchao Wang, Xiaoli Jia, Zeyan Wu, Haibin Wang
Summary: In this study, sheep manure fertilizers with different dosages were used for five consecutive years to treat acidified tea plantation soils. The effects of sheep manure fertilizer on soil pH value, nitrogen transformation, and tea yield and quality were analyzed. The results showed that continuous use of sheep manure fertilizer increased the soil pH value. Low dosage of sheep manure fertilizer improved tea yield, tea quality indicators, and soil ammonium nitrogen content, while high dosage showed mixed effects. Nitrate nitrogen content and related indexes decreased with low dosage, but increased with high dosage. The transformation ability of ammonium nitrogen and nitrate nitrogen in the soil played a crucial role in tea yield and quality. Long-term treatment with 15 t/hm(2) of sheep manure fertilizer had the best fertilization effect. This study provides practical basis for the remediation and fertilizer management in acidified tea plantation soils.
Article
Forestry
Anjie Liang, Xinyi Wen, Wenjing Yu, Shunde Su, Yongming Lin, Hailan Fan, Jun Su, Chengzhen Wu
Summary: Long-term monocultures of tea and excessive use of chemical fertilizer degrade soil quality. This study explored the effects of Pinus and Chinese fir on soil nutrients and fungal communities in ex-tea plantations that were reforested with pure forest and mixed forest modes. After reforestation, the mixed forest showed increased vegetation index and improved soil organic carbon, total nitrogen, and N:P ratio compared to the pure forest. The fungal communities in the mixed forest exhibited changes in composition, leading to increased symbiotrophs and decreased complex nutrient types. This study highlights the importance of reforestation with a mixed forest to improve degraded soils in ex-tea planting areas.
Article
Plant Sciences
Xiaoli Jia, Yuhua Wang, Qi Zhang, Shaoxiong Lin, Ying Zhang, Mengru Du, Meihui Chen, Jianghua Ye, Zeyan Wu, Haibin Wang
Summary: This study analyzed the effects of sheep manure fertilizer with different application depths on soil acidification, tea yield and quality, and soil nitrogen transformation in tea plantations. The results showed that long-term use of sheep manure fertilizer reduced soil acidification and improved tea yield and quality by enhancing root activity and nitrogen uptake capacity. The best effect was achieved when sheep manure was applied at a depth of 50 cm and 70 cm.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jianghua Ye, Yuhua Wang, Shaoxiong Lin, Yuchao Wang, Pengyuan Chen, Lei Hong, Xiaoli Jia, Jiaqian Kang, Zeyan Wu, Haibin Wang
Summary: Acidification can have significant impacts on tea trees, affecting their growth, as well as the yield and quality of tea leaves. This study investigated the effects of soil acidification on the physicochemical properties, microorganisms, and metabolites of tea rhizosphere soils with different pH values. The results showed that as soil pH increased, there was an increase in organic matter content, cation exchange capacity, microbial biomass carbon and nitrogen, microbial respiration intensity, bacterial and actinomyces numbers, but a decrease in fungi number. Soil metabolite analysis revealed a significant increase in the total contents of metabolites with increasing soil pH. Correlation analysis revealed significant relationships between physicochemical soil indexes, microorganisms, and soil metabolites, with 221 soil metabolites showing a correlation, 55 of which were significantly positively correlated and 166 were significantly negatively correlated. Furthermore, characteristic compounds were identified through network analysis, showing varied trends with increasing soil pH. The study found that increasing soil pH in tea rhizosphere promoted the diversity and number of soil microorganisms and enhanced the cyclic ability of carbon and nitrogen, ultimately leading to improved resistance and growth of tea trees.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Qi Zhang, Ying Zhang, Pengyao Miao, Meihui Chen, Mengru Du, Xiaomin Pang, Jianghua Ye, Haibin Wang, Xiaoli Jia
Summary: This study investigated the effects of pruning on the growth of tea trees, soil enzyme activity and microbial functional diversity. The results showed that pruning significantly improved tea tree growth and soil physicochemical indexes, but decreased soil microbial functional diversity.
Article
Biotechnology & Applied Microbiology
Xiaoli Jia, Yuhua Wang, Qisong Li, Qi Zhang, Ying Zhang, Shaoxiong Lin, Pengyuan Cheng, Meihui Chen, Mengru Du, Jianghua Ye, Haibin Wang
Summary: This study used GC-MS technique to determine the volatile metabolite contents during the traditional fermentation process of Wuyi rock tea and analyzed their odor characteristics. The results showed significant changes in 17 characteristic compounds during the preliminary processing stages of fresh leaves, withering, and fermentation. The formation of floral aroma relied on dihydromyrcenol, while the woody aroma originated from six terpenoids, and their synthesis depended on dihydromyrcenol content. The fruity aroma was dominated by six esters, mainly (Z) -3-hexen-1-yl butyrate, (E) -3-hexen-1-yl butyrate, and 5-Hexenyl butyrate.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Plant Sciences
Ying Zhang, Qi Zhang, Yuhua Wang, Shaoxiong Lin, Meihui Chen, Pengyuan Cheng, Yuchao Wang, Mengru Du, Xiaoli Jia, Haibin Wang, Jianghua Ye
Summary: This study investigated the effect of magnesium on the transcriptome and physicochemical indexes of tea leaves. The results showed that magnesium significantly affected gene expression in tea leaves. Increasing magnesium concentration promoted photosynthesis and secondary metabolite synthesis, but had a negative impact on the accumulation of main quality indexes of tea leaves.
Article
Chemistry, Applied
Jianghua Ye, Yuhua Wang, Shaoxiong Lin, Lei Hong, Jiaqian Kang, Yiling Chen, Mingzhe Li, Yun Jia, Xiaoli Jia, Zeyan Wu, Haibin Wang
Summary: Processing significantly affects the content of volatile compounds, aroma intensity, and odor characteristics of Shuixian tea. Terpenoids and esters were found to be the most abundant volatile compounds in processed Shuixian tea. Geraniol and nerol were identified as the key compounds contributing to the aroma of Shuixian tea. Floral and fruity characteristics were the dominant odor characteristics, with floral notes mainly contributed by geraniol and fruity notes mainly contributed by nerol. The rapid increase of geraniol and nerol compounds during the withering process of tea leaves was observed. This study provides important insights for improving processing technology and enhancing the quality of Shuixian tea.
Article
Multidisciplinary Sciences
Lei Hong, Yuhua Wang, Qi Zhang, Yuchao Wang, Mengmei Chen, Mingzhe Li, Yixiang Huang, Zeyan Wu, Jianghua Ye, Haibin Wang
Summary: Benshan tea, a type of oolong tea, originates from Anxi County, Fujian Province, China. The processing of tea leaves plays a crucial role in the formation of its aroma characteristics. This study found that tea processing led to a significant increase in volatile compounds content, mainly terpenoids. The analysis identified 20 key compounds, with geraniol being the most important in the formation of floral aroma in Benshan tea.
Article
Engineering, Environmental
Bitong Zhu, Yuanping Li, Christopher Rensing, Jianghua Ye, Jialin Qiu, Qinji Li, Lekang Wu, Qianxi Lu, Yv Lin, Xiaoli Jia
Summary: The study investigated the role of Pseudomonas fluorescens ZL22 in soil restoration and phenolic acid autotoxicity (PAA) regulation in tea plantations. ZL22 can degrade 96% of p-hydroxybenzoic acid and 98% of 3,4 dihydroxybenzoic acid in tea rhizosphere soil within 30 days. Its cooccurrence with low cinnamic acid levels further promotes lettuce seed growth and significantly increases tea production. ZL22 effectively regulates PAA in the rhizospheric soil, increases the abundance of genera associated with soil N, C, and S cycling, and creates optimum pH and organic carbon, and available N contents for secondary metabolite accumulation in tea leaves. The application of P. fluorescens ZL22 controls PAA, improves plant growth and soil nutrition, thereby promoting tea production and quality.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Plant Sciences
Xiaoli Jia, Qi Zhang, Meihui Chen, Yuhua Wang, Shaoxiong Lin, Yibin Pan, Pengyuan Cheng, Mingzhe Li, Ying Zhang, Jianghua Ye, Haibin Wang
Summary: This study used transcriptomics and metabolomics to analyze the effects of different withering methods on the quality of Wuyi rock tea. The results showed that sunlight withering was most beneficial in enhancing the taste and aroma of tea, while withering trough withering increased the bitterness. The comprehensive evaluation of metabolite content and taste characteristics indicated that sunlight withering had the best quality. This study provided an important basis for guiding the processing of Wuyi rock tea.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Ying Zhang, Qi Zhang, Yuhua Wang, Shaoxiong Lin, Meihui Chen, Pengyuan Cheng, Mengru Du, Xiaoli Jia, Jianghua Ye, Haibin Wang
Summary: This study investigated the changes in metabolites, photosynthetic fluorescence parameters, and quality indexes of tea leaves under different concentrations of magnesium treatment. The results showed that magnesium did not significantly affect the quantity and total content of metabolites in tea leaves, but it influenced the content of specific metabolites. Increasing magnesium concentration enhanced the photosynthetic capacity and carbohydrate metabolism in tea trees, promoting their growth, but it had a negative impact on the synthesis of secondary metabolites and amino acids related to tea quality.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Yuhua Wang, Qi Zhang, Jianjuan Li, Shaoxiong Lin, Xiaoli Jia, Qingxu Zhang, Jianghua Ye, Haibin Wang, Zeyan Wu
Summary: Soil acidification has a significant impact on the quality of tea leaves. Research findings show that as soil pH decreases, the organic matter content, available nutrient content, and cation exchange capacity in the rhizosphere soil of tea trees also decrease, leading to a reduction in the floral odor characteristics of tea leaves.
Article
Microbiology
Qi Zhang, Ying Zhang, Yuhua Wang, Shaoxiong Lin, Meihui Chen, Pengyuan Cheng, Jianghua Ye, Pengyao Miao, Xiaoli Jia, Haibin Wang
Summary: Pruning promotes tea tree growth and yield, but not the synthesis and accumulation of quality-related compounds in tea leaves. It increases organic matter and phosphorus content, while decreases total phosphorus, total potassium, and available nitrogen content in rhizosphere soil. Changes occur in the microbial community and metabolic pathways in tea rhizosphere soil after pruning, with beneficial microorganisms and metabolic pathways increasing and detrimental ones decreasing.
MICROBIOLOGY SPECTRUM
(2023)
