Tea planting age effects on the soil aggregation and aggregate-related organic matters, microbial biomass and activity in the southern Guangxi of China

Wang, Shengqiang; He, Xinxin; Zhang, Zhe; Ye, Shaoming

doi:10.1080/03650340.2020.1771316

Cited by 4 publications

(3 citation statements)

References 58 publications

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“…Thirdly, the concentration of soil MBC was the highest in the < 0.25-mm aggregates but the lowest in the > 2mm aggregates (Table 6), which is consistent with the findings of Wang et al (2021b), who proposed that the more soil ROC in the < 0.25-mm aggregates could make more carbon sources available for microbial growth. Fourthly, soil WOC concentration in soil aggregates increased as the decreasing aggregate size (Table 7), because micro-aggregates have a larger specific surface area than macro-aggregates, which makes microaggregates capable of adsorbing more soil WOC (Gao et al 2014).…”

Section: Soil Carbon Concentration As Affected By Aggregate Sizesupporting

confidence: 88%

Distribution of organic carbon fractions in soil aggregates in Chinese fir plantations with different stand ages

Huang

Zhang

et al. 2021

Ecol Process

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Background Revealing the variations in soil aggregate-related organic carbon (OC) and labile organic carbon (LOC) fractions in a chronosequence of Chinese fir plantations plays an important role in better understanding the impact of soil carbon sink or source on the Chinese fir plantation ecosystem. In this study, soil samples in a depth of 0–20 cm were collected from Chinese fir plantations at different stand ages (0, 9, 17, and 26 years old) in Guangxi, China. With the optimal moisture sieving method adopted, the soil aggregates of 4 different sizes were obtained, including > 2-mm, 2–1-mm, 1–0.25-mm, and < 0.25-mm aggregates. Soil OC and LOC fractions were measured in the aggregates of different sizes. The LOC fractions included readily oxidizable carbon (ROC), particulate organic carbon (POC), microbial biomass carbon (MBC), water-soluble organic carbon (WOC), and mineralized organic carbon (MOC). Results Soil aggregate stability, as indicated by the mean weight diameter (MWD), was the highest in the 17-year-old Chinese fir plantations and was significantly positively related (p < 0.05) to the concentrations of OC and LOC fractions (except for the ROC and MOC), with the POC in particular. As for all stand ages of Chinese fir plantations, the concentrations of soil OC and LOC fractions were significantly increased as the aggregate size decreased. Consequently, there were more OC and LOC fractions distributed in the < 0.25-mm aggregates. During the stand development, the concentrations of soil OC and LOC fractions first increased and then decreased, with the highest levels detected in the 17-year-old Chinese fir plantations, indicating that the 17-year-old Chinese fir plantations were conducive to the accumulation of soil OC and LOC fractions. Conclusion After 17 years of planting, promoted soil carbon (especially for the POC) accumulation contributes significantly to enhancing soil aggregate stability for the Chinese fir plantations in Guangxi, China.

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Section: Soil Carbon Concentration As Affected By Aggregate Sizesupporting

confidence: 88%

Distribution of organic carbon fractions in soil aggregates in Chinese fir plantations with different stand ages

Huang

Zhang

et al. 2021

Ecol Process

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“…Vermicompost inclusion enhances the microbial C mic , N mic , and P mic , followed by FYM use as treatment, and shows demarcated results of crop growth at later stages under similar conditions [ 36 ]. It has been recorded that the soil microbes actively participate in the biogeochemical processes of soil and play a pivotal role in soil carbon and nitrogen (N) turnover [ 37 , 38 , 39 ]. This study is in line with other studies that supported the view that the increase in microbial biomass of C mic , N mic , and P mic is because of scarcity in soil pH and results from the addition of organic contents, and this is supported by the existence of the negative correlation of pH with microbial C mic , N mic , and P mic [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

“…Irrigating with saline water leads to enhancing the Cl − and SO 4 2− of the Na, Ca, and Mg in the soil that affects the plant growth development due to high osmotic stress, scarcity of water for physiological activity, and toxic effects towards important ions. Researchers have found that by increasing the level of the salt concentration in water, they can enhance the EC of soil and minimize the availability of N, P, and K [ 22 , 26 , 38 ]. The availability of nutrients in the soil is affected by salinity via modifying retention, fixation, and transformation of nutrients in soils, changing the absorption of nutrients that affect the growth and development of plants [ 7 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Bhanwaria

Singh

Musarella

2022

Plants

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(1) Background: Arid conditions occur due to climate abnormality in the different biogeography regions of the world. The aim of this research is to investigate the stoichiometry of manure and moisture regimes on soil properties, microbial biomass C:N:P turnover, and the grain yield of mustard crops under stress in arid conditions; (2) Methods: The field experiment was carried out for 2 years at the farms of the agriculture college of SKN, Jobner (SKRAU Bikaner, Rajasthan). The effects of organic manure, moisture regimes, and saline water treatment on soil properties, such as the soil microbial biomass build-up, loss, turnover, and recycling of carbon (Cmic), nitrogen (Nmic), and phosphorus (Pmic) in the mustard crop were investigated. The twenty-seven treatments studied are described as follows: organic manures (control, FYM @ 10 t ha−1 and vermicompost @ 5 t ha−1), moisture regimes (0.4, 0.6, and 0.8 IW/CPE ratio), and saline irrigation water (control, 6, 12 dSm−1); (3) Results: Our findings indicate that vermicompost @ 5 t ha−1 significantly increases moisture retention and the available water in soil at 33 kPa and 1500 kPa. The microbial biomass build-up of Cmic increases by 43.13% over the control and 14.36% over the FYM. Similarly, the soil microbial biomass of Nmic, and Pmic also increase considerably. The SHC of the soil is enhanced by the application of farmyard fertilizer and vermicompost. The BD and pH decrease significantly, while the SHC, OC, CEC, and ECe of the soil increase significantly. The build-up, losses, and fluxes of the soil microbial biomass of Cmic, Nmic, and Pmic increase significantly, and the turnover rate decreases under vermicompost @ 5 t ha−1. A significant increase in grain yield was observed. Irrigation with a 0.8 IW/CPE moisture regime significantly decreases the pH of the SHC; (4) Conclusions: We hypothesized the interactive outcomes of the moisture regime and found that organic manure significantly influenced grain and stover yield. The treatments of quality irrigation water and the addition of organic manure are efficient enough to improve soil properties, water holding capacity, and soil microbial biomass C:N:P in stress climatic conditions.

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Linking soil organic carbon characteristics, nutrient stoichiometry, and microbial community to eco-enzymatic stoichiometry within aggregates in different aged walnut plantations

Zhao,

Yang,

Liu

et al. 2024

European Journal of Soil Biology

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Tea planting age effects on the soil aggregation and aggregate-related organic matters, microbial biomass and activity in the southern Guangxi of China

Cited by 4 publications

References 58 publications

Distribution of organic carbon fractions in soil aggregates in Chinese fir plantations with different stand ages

Distribution of organic carbon fractions in soil aggregates in Chinese fir plantations with different stand ages

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Linking soil organic carbon characteristics, nutrient stoichiometry, and microbial community to eco-enzymatic stoichiometry within aggregates in different aged walnut plantations

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