期刊
FORESTS
卷 12, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/f12111435
关键词
vegetation succession; soil bulk density; soil porosity; soil organic carbon; volcanic island
类别
资金
- KAKENHI [15H04507, 16H02932, 19H04315]
- Environment Research and Technology Development Fund, Ministry of the Environment, Japan [D-1106]
- Grants-in-Aid for Scientific Research [15H04507, 16H02932, 19H04315] Funding Source: KAKEN
The study found that as vegetation succession progresses, the overall soil quality improves, with the most pronounced changes in the physicochemical properties of the surface layer. Forest land accumulated more organic matter, resulting in the highest soil quality index, while grassland and shrubland lagged behind in soil quality.
The bare lands formed after volcanic eruptions provide an excellent opportunity to study the interactions between vegetation succession and soil formation. To explore the changes in soil physicochemical properties in the vegetation succession processes and the relationship between them, soil physicochemical properties of different volcanic ash accumulation on Miyake-jima Island were studied at different vegetation succession stages. The results showed that soil bulk density gradually decreased and that soil porosity, soil water content (SWC), pH, cation exchange capacity (CEC), soil total organic carbon (TOC), and total nitrogen (TN) increased significantly with vegetation succession. The physicochemical properties changes in the soil surface horizon were most obvious, and the deep soil accumulated a large amount of relatively stable soil carbon and nitrogen. The forest land formed a thicker organic matter horizon, accumulating more carbon and nitrogen than grassland, and the soil quality index (SQI) was higher than that of grassland and shrubland. In conclusion, our research indicates the significant change in soil physicochemical properties and the improvement in soil quality in the vegetation succession processes, emphasizing a significant relationship between vegetation succession and soil development in bare land.
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