Vegetation responses to the mid-Holocene abrupt climate events in the Forest-Steppe Ecotone in northern China
文献类型：期刊论文
| 作者 | Zhang, Yao6,7; Niu, Lili5; Cui, Qiaoyu1; Lin, Yi7; Zhang, Zhiping2; Zhao, Jiaju3; Yan, Xinwei4; Zhou, Aifeng6 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2026-02-15 |
| 卷号 | 684页码:113506 |
| 关键词 | Pollen analysis Vegetation dynamics Mid-Holocene climate Forest-Steppe Ecotone East Asian monsoon marginal zone |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2025.113506 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Vegetation ecosystems in the East Asian monsoon margin in northern China are highly sensitive and ecologically vulnerable. Understanding long-term vegetation dynamics and their responses to abrupt climate events is critical for guiding ecological conservation and sustainable land-use planning. In this study, we reconstructed vegetation dynamics using a high-resolution pollen record from the Qixing peatland in the Saihanba region. Results indicated that climate was the primary driver of vegetation changes, while temperature and precipitation variations were asynchronous. The mid-Holocene was characterized by maximum precipitation; however, an abrupt cooling event between 7000 and 5500 cal yr BP triggered a rapid decline in deciduous broadleaf trees alongside a concurrent expansion of herbaceous vegetation, ultimately leading to steppe-dominated ecosystems. This transition was accompanied by reduced vegetation diversity and increased spatial heterogeneity. Subsequently, coniferous forests dominated by Pinus, as a major component of the secondary vegetation, became prevalent. However, a sudden shift to aridity around 5000 cal yr BP associated with the weakening of the East Asian summer monsoon prompted a rapid spread of herbs, along with a recovery in diversity and evenness. This study demonstrates that abrupt climate shifts caused forest retreat and grassland expansion once critical climatic thresholds were exceeded across the monsoon marginal zone. Given the current context of accelerated climate warming and increasingly frequent extreme climatic events, urgent protective measures are essential for these highly vulnerable ecosystems. |
| URL标识 | 查看原文 |
| WOS关键词 | ASIAN SUMMER MONSOON ; INNER-MONGOLIA ; HOLOCENE VEGETATION ; POLLEN DATA ; QUANTITATIVE RELATIONSHIP ; TEMPERATURE-VARIATIONS ; LAST DEGLACIATION ; LAKE XIARINUR ; EAST-ASIA ; NE CHINA |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001648422500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219661]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhou, Aifeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 2.Nanjing Normal Univ, Sch Geog, Nanjing 210023, Jiangsu, Peoples R China; 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shanxi, Peoples R China; 4.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 5.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China; 6.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; 7.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Zhejiang, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Yao,Niu, Lili,Cui, Qiaoyu,et al. Vegetation responses to the mid-Holocene abrupt climate events in the Forest-Steppe Ecotone in northern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2026,684:113506. |
| APA | Zhang, Yao.,Niu, Lili.,Cui, Qiaoyu.,Lin, Yi.,Zhang, Zhiping.,...&Zhou, Aifeng.(2026).Vegetation responses to the mid-Holocene abrupt climate events in the Forest-Steppe Ecotone in northern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,684,113506. |
| MLA | Zhang, Yao,et al."Vegetation responses to the mid-Holocene abrupt climate events in the Forest-Steppe Ecotone in northern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 684(2026):113506. |
入库方式： OAI收割
来源：地理科学与资源研究所
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