Stoichiometric characteristics of soil carbon, nitrogen and phosphorus along soil depths in response to climatic variables in grasslands on the Mongolia Plateau

Zhu, Yuhe; Xiao, Hong; Wang, Bing; Wu, Ying Xia; Bai, Yongfei; CHEN, Di-Ma

doi:10.17521/cjpe.2021.0266

Cited by 3 publications

(1 citation statement)

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“…The coupling balance and circulation among soil C, N, and P would influence the healthy and sustainable development of woodland soils (Yang and Luo, 2011;Yu et al, 2018;Zhu et al, 2022). In this study, well-constrained relations were found in SOC and TN, as well as in TN and TP, which was in line with most previous studies focused on surface soil layers (Cleveland and Liptzin, 2007;Tian et al, 2010;Zhang et al, 2019).…”

Section: Coupling Relationships Between Soc N and P Contents Across C...supporting

confidence: 90%

Soil carbon, nitrogen, and phosphorus stoichiometry and its influencing factors in Chinese fir plantations across subtropical China

Tong

Wu²,

Jiang³

et al. 2023

Front. For. Glob. Change

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The crucial roles of soil carbon (C) and nutrients and their stoichiometric characteristics in indicating the soil interior nutrient cycling and plant nutrient supply of forest ecosystems have been widely verified, whereas it has been less explored when considering the influencing factors regionally, especially for the widely cultivated plantation tree species. In the current study, the patterns of soil organic C (SOC), total nitrogen (TN), and total phosphorus (TP) stoichiometry in Chinese fir [Cunninghamia lanceolata (Lamb.) Hook] plantations across subtropical China were analyzed, and their influencing factors were also investigated. The results showed that the range of SOC: TN (C:N), SOC: TP (C:P), and TN: TP (N:P) ratios were 7.32–18.27, 20.15–230.48, and 2.11–15.05 with a mean value of 13.22, 83.50, and 6.05, respectively. Well-constrained correlations were found in SOC and TN, as well as in TN and TP. Soil TN and TP contents increased with increasing altitude, whereas soil C:N, C:P, and N:P ratios decreased. Soil TP content decreased, and the C:P ratio increased with increasing mean annual temperature (MAT) and annual total solar radiation (ATSR). Soil C:N, C:P, and N:P ratios increased with increased mean annual precipitation (MAP) and mean annual evaporation (MAE). Overall, our findings suggested that the soil nutrient supply is relatively adequate in Chinese fir plantations across subtropical China. Meanwhile, soil C, N, and P stoichiometric characteristics were affected by geographical and climatic variables to different degrees.

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Section: Coupling Relationships Between Soc N and P Contents Across C...supporting

confidence: 90%

Soil carbon, nitrogen, and phosphorus stoichiometry and its influencing factors in Chinese fir plantations across subtropical China

Tong

Wu²,

Jiang³

et al. 2023

Front. For. Glob. Change

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The effect of climate factors on soil total phosphorus in the Three River Headwaters Region is regulated by soil layers

Cui

Feng

et al. 2023

J Soil Sci Plant Nutr

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Analysis of measurement differences and causes of C, N, and P in river flooding areas—taking the Hailar River in China as an example

Dong,

2024

PeerJ

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The Hailar River is located in the Inner Mongolia Autonomous Region of Northeast China. It is a connecting hub of the agricultural pastoral transitional zone on the Hulunbuir grassland, with abundant water and biodiversity resources, and important ecological conservation significance. This study takes the Hailar River as the research area to evaluate the impact and main influencing factors of soil C, N, and P ecological measurement from the upstream to downstream concave convex riverbanks of the Hailar River. The research results show that: (1) The average soil particle size shows differences in the upstream and downstream: the average soil particle size in Section 1 is 31.6–192.3 µm, Section 2 is 21–213 µm, Section 3 is 21–288 µm, and Section 4 is 42–206 µm; the pH value in the upstream area is generally low, while the pH value in the downstream area increases. The reason for this is that the convex bank area has sufficient water, which plays a role in inhibiting salt content; (2) the nutrient content in the concave bank is generally higher in the upstream region than in the downstream region, while the difference in nutrient content between the upstream and downstream regions is relatively small in the convex bank; (3) the nutrient content of concave banks is mostly positively correlated with soil moisture content, while convex banks are positively and negatively correlated with soil moisture content and soil particle size. Research has shown that different cross-sections upstream and downstream, as well as uneven riverbanks, significantly affect soil physicochemical properties and soil C, N, and P ecological measurements. Studying the content of soil C, N, and P in different riparian zones under typical cross-sections can provide new ideas for regional ecological protection and even global C, N, and P cycling.

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Stoichiometric characteristics of soil carbon, nitrogen and phosphorus along soil depths in response to climatic variables in grasslands on the Mongolia Plateau

Cited by 3 publications

References 0 publications

Soil carbon, nitrogen, and phosphorus stoichiometry and its influencing factors in Chinese fir plantations across subtropical China

Soil carbon, nitrogen, and phosphorus stoichiometry and its influencing factors in Chinese fir plantations across subtropical China

The effect of climate factors on soil total phosphorus in the Three River Headwaters Region is regulated by soil layers

Analysis of measurement differences and causes of C, N, and P in river flooding areas—taking the Hailar River in China as an example

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