Transitional responses of tree growth to climate warming at the southernmost margin of high latitudinal permafrost distribution
文献类型：期刊论文
| 作者 | Shi, Liang3; Liu, Hongyan3; Wang, Lu4; Peng, Ruonan3; He, Honglin; Liang, Boyi5; Cao, Jing1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-01-15 |
| 卷号 | 908页码:168503 |
| 关键词 | Permafrost degradation Climate warming Larch Tree growth Climate -growth relationship |
| DOI | 10.1016/j.scitotenv.2023.168503 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The marked increase in temperature warming and permafrost degradation has raised apprehensions about the fate of forests of boreal forests in permafrost regions. However, the impact of climate on tree growth is not limited to direct effects but also involves complex interactions with permafrost. The degradation of permafrost poses a threat to forest growth that has received insufficient attention thus far, after analyzing the impact of permafrost degradation and climate on Dahurican larch (Larix gmelinii) growth from six forest sites with two maximum active layer thickness (ALT) classifications (more and less than tree root length) across the southern margin of the permafrost region. We found that accompanying the continued degradation of permafrost, tree growth was inhibited (slope =-0.67, p < 0.05) by the degradation of permafrost and the growth-climate relationship was shifted from positive to negative at maximum ALT less than tree root length sites. However, the growth rate of trees significantly accelerated (slope = 5.46, p < 0.05) at maximum ALT more than tree root length sites. Path analysis indicated that tree growth did not benefit from temperature warming and more stress could be caused by waterlogging due to permafrost degradation at maximum ALT less than tree root length sites, however, enhanced tree growth primarily by reducing the physical spatial constraints and root layer additional water source with permafrost degradation at maximum ALT more than tree root length sites. It also implies that the matchiness between tree root and maximum active layer depth is critical to the effect of permafrost degradation on tree growth. The transitional response to climate warming and the opposite trend of tree growth at two ALT classification sites suggest that future tree growth responds to the different stages of permafrost degradation differently. Our study provides a new insight on permafrost degradation impact on tree growth. |
| WOS关键词 | ACTIVE-LAYER ; THAW ; FRAGMENTATION ; TEMPERATURE ; ECOSYSTEMS ; MOUNTAINS ; INCREASES ; FORESTS ; LARCH ; SOIL |
| WOS研究方向 | Environmental Sciences & Ecology |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001114291200001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/201005]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Beijing Forestry Univ, Coll Forestry, Precis Forestry Key Lab Beijing, Beijing, Peoples R China 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, State Environm Protect Key Lab Reg Ecoproc & Funct, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 4.Peking Univ, Inst Carbon Neutral, Coll Urban & Environm Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Liang,Liu, Hongyan,Wang, Lu,et al. Transitional responses of tree growth to climate warming at the southernmost margin of high latitudinal permafrost distribution[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,908:168503. |
| APA | Shi, Liang.,Liu, Hongyan.,Wang, Lu.,Peng, Ruonan.,He, Honglin.,...&Cao, Jing.(2024).Transitional responses of tree growth to climate warming at the southernmost margin of high latitudinal permafrost distribution.SCIENCE OF THE TOTAL ENVIRONMENT,908,168503. |
| MLA | Shi, Liang,et al."Transitional responses of tree growth to climate warming at the southernmost margin of high latitudinal permafrost distribution".SCIENCE OF THE TOTAL ENVIRONMENT 908(2024):168503. |
入库方式： OAI收割
来源：地理科学与资源研究所
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