| 刊名 | Journal of Landscape Research |
| 作者 | ZHANG Zizheng , SU Yanan, WANG Zhiheng, TIAN Yaowu* |
| 作者单位 | College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, Henan 471003, China |
| DOI | 10.16785/j.issn 1943-989x.2025.2.002 |
| 年份 | 2025 |
| 刊期 | 2 |
| 页码 | 7-10,16 |
| 关键词 | Litter, SOC, increment, Funiu Mountain, Quercus variabilis |
| 摘要 | Soil organic carbon (SOC) from different sources and with distinct chemical properties exhibit variations in their accumulation mechanisms. Exploring the effects of different litter treatments on SOC storage is of great significance for understanding the formation and accumulation mechanisms of the SOC pool. The feedback mechanisms of new and old SOC in response to tree species and litter treatments were quantitatively analyzed by the C3 plant/C4 soil replacement method. The litter treatments included no litter, aboveground litter, belowground forest litter, and aboveground + belowground litter, totaling four treatments. The results showed that in the first year, cork oak (Quercus variabilis) exhibited the highest net SOC content increment and net new SOC increment, but the values declined rapidly from the second year onward. The net increment in SOC content was positive at all sample sites, while the priming effect was not significant at any site. Litter treatments had a significant impact on both SOC content and net SOC increment. Compared with aboveground litter, belowground litter was more effective in increasing SOC content and net SOC increment. |
