Response Patterns of Soil Organic Carbon Fractions and Storage to Vegetation Types in the Yellow River Wetland

Shuangquan Li, Chuang Yan (), Mengke Zhu, Shixin Yan, Jingxu Wang and Fajun Qian
Additional contact information
Shuangquan Li: Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China
Chuang Yan: Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China
Mengke Zhu: Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China
Shixin Yan: School of Surveying and Land-Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China
Jingxu Wang: Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China
Fajun Qian: Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China

Land, 2025, vol. 14, issue 9, 1-17

Abstract: To promote soil carbon (C) sequestration and alleviate climate change, it is crucial to understand how vegetation types affect soil organic C (SOC) storage and stability in riverine wetlands. This study investigates the characteristics of SOC fractions and storage among different vegetation types and evaluates their soil C sequestration potential. Soil samples were collected and analyzed from four vegetation types ( Typha orientalis , Tamarix chinensis , Avena sativa , and Phragmites australis ) in wetlands at the junction of the middle and lower reaches of the Yellow River. Soil particulate organic C, dissolved organic C, and microbial biomass C contents of Avena sativa and Phragmites australis communities were higher than those of Tamarix chinensis and Typha orientalis communities ( p < 0.001). Typha orientalis communities exhibited the highest SOC stability (4.31 ± 0.38), whereas Tamarix chinensis communities showed the lowest (1.34 ± 0.17) ( p < 0.001). Soil organic C storage of Avena sativa (2.81 ± 0.32 kg m −2 ) and Phragmites australis (2.53 ± 0.06 kg m −2 ) communities was higher than that of Tamarix chinensis (0.88 ± 0.06 kg m −2 ) and Typha orientalis (1.35 ± 0.13 kg m −2 ) communities ( p < 0.001). Soil electrical conductivity (EC) was significantly correlated with SOC fractions of Typha orientalis and Phragmites australis communities, while soil water content and particle size composition affected SOC fractions of Avena sativa communities ( p < 0.05). Soil particle size composition affected the SOC storage of Typha orientalis , Tamarix chinensis , and Avena sativa communities ( p < 0.05). Soil pH, water content, and EC influenced the SOC storage of Typha orientalis , Tamarix chinensis , and Phragmites australis communities ( p < 0.05). These results demonstrate that Avena sativa and Phragmites australis communities play a vital role in maintaining C sink potential and ecological function in the Yellow River wetland. Nonetheless, the Typha orientalis community had greater C sequestration in the long term due to its high SOC stability. This research suggests that the effects of vegetation types should be considered when exploring the soil C cycle in riverine wetlands.

Keywords: carbon sequestration; labile organic carbon; soil properties; the Yellow River wetland; vegetation types (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2073-445X/14/9/1785/pdf (application/pdf)
https://www.mdpi.com/2073-445X/14/9/1785/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:14:y:2025:i:9:p:1785-:d:1740331

Access Statistics for this article

Land is currently edited by Ms. Carol Ma

More articles in Land from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().