Changes in the profile properties and chemical weathering characteristics of cultivated soils affected by anthropic activities

Li, Jiangwen; Du, Jun; Zhong, Shuang; Ci, En; Wei, Chaofu

doi:10.1038/s41598-021-00302-w

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…The reason for this is mainly due to the fact that the origin of soil TP remains relatively consistent, and its composition is primarily affected by the soil's parent material, pedogenic processes, and agricultural methods [36]. Other sources, such as dry and wet deposition, animal and plant residues, and microbial activity, have relatively minor effects on TP [37]. Additionally, in this study, the soil SOC, TN, and TP contents in tea plantations exhibited a highly significant positive correlation with each other (p < 0.01).…”

Section: Soil C N and P Content Characteristicsmentioning

confidence: 99%

The Soil Ecological Stoichiometry Characteristics of the Highest Latitude Areas in the Main Tea-Producing Regions of China

Niu,

Zhang,

Han

et al. 2024

Agronomy

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To investigate the contents of carbon, nitrogen, and phosphorus in tea plantation soils and their ecological stoichiometric characteristics, as well as their response to environmental factors in high-latitude regions of China, soil samples from 0 to 20 cm depth were collected from tea plantations at different altitudes and cultivation years in the main tea-producing areas of Shaanxi Province. These samples were used to determine the soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) contents and to calculate their stoichiometric ratios. The findings revealed the following: the average soil SOC and TN content in tea gardens were 13.15 and 1.30 g·kg−1, respectively, exceeding the national soil average. These values met the Class I tea garden fertility standards. However, the average soil TP content, at 0.45 g·kg−1, fell below the national soil average, meeting the Class II tea garden fertility standards. In tea gardens, the average ratios of carbon to nitrogen (C:N), carbon to phosphorus (C:P), and nitrogen to phosphorus (N:P) in the soil were 10.42, 30.98, and 3.32, respectively. These ratios were all lower than the national soil average, indicating relatively high phosphorus availability but nitrogen deficiency in tea garden soils. As altitude increased, there was a decline in soil SOC content, C N, and C P ratios, followed by a subsequent increase. No significant changes were seen in TN, TP, and N P ratio in the soil, but there was an increase in SOC content, TN content, and C P ratio during cultivation. The N-to-P ratio initially increased before decreasing, while the C-to-N ratio decreased before increasing. Soil TP content did not change significantly. The study recommends careful nitrogen fertilizer application in tea garden management to balance nitrogen and phosphorus.

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Section: Soil C N and P Content Characteristicsmentioning

confidence: 99%