Distribution characteristics of top SOC in different forest types of Genhe in the Greater Khingan Range of Inner Mongolia

Soil serves as the largest active carbon reservoir in terrestrial ecosystems, playing a pivotal role in carbon sequestration. The study area is situated in Genhe City, on the western slope of the northern segment of the Greater Khingan Range in Inner Mongolia. We utilized a TOC/TN analyzer to measur...

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Bibliographic Details
Published in:Scientific reports Vol. 15; no. 1; pp. 6736 - 11
Main Authors: Zhang, Jie, Song, Mingyue, Zheng, Shulin, Zhou, Pei, Guo, Jun, He, Junnan, Yue, Haijun
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 25.02.2025
Nature Publishing Group
Nature Portfolio
Subjects:
631/158/1145
704/158/2454
Altitude
Carbon
Carbon sequestration
Coefficient of variation
Data analysis
Different forest types
Distribution patterns
Forests
Humanities and Social Sciences
Latitude
multidisciplinary
Organic carbon
Science
Science (multidisciplinary)
Semivariogram model
Soil depth
Spatial distribution
Spatial distribution pattern
Terrestrial ecosystems
Top soil
Variation
Mongolia
Greater Khingan Range
Semivariogram model
Spatial distribution pattern
Different forest types
Top soil
ISSN:2045-2322, 2045-2322
Online Access:Get full text
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Summary:Soil serves as the largest active carbon reservoir in terrestrial ecosystems, playing a pivotal role in carbon sequestration. The study area is situated in Genhe City, on the western slope of the northern segment of the Greater Khingan Range in Inner Mongolia. We utilized a TOC/TN analyzer to measure the soil organic carbon (SOC) content and applied data analysis methods, including the coefficient of variation and the semivariogram function model, to examine the spatial distribution characteristics of SOC content in the surface layer. The results showed that the variation range of SOC content in the 0–5 cm and 5–10 cm soil layers of the four types of forest land sampling points is 100.98–327.59 g/kg and 44.22–322.71 g/kg. Within the same forest land, SOC content decreases with increasing soil depth. Overall, as latitude increases, the top SOC content shows an upward trend. However, in the Hanma region, the relationship between SOC content and latitude varies across different soil layers. This variation may be attributed to differences in vegetation, topography, and altitude. We believe that latitude, forest type, and altitude all influence the spatial distribution of SOC content. These findings provide a scientific basis and reference for establishing the spatial distribution patterns of top SOC content.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-025-88170-6