气候变化领域集成服务门户(CCPortal): Drivers of land cover and plant compositional changes in Northeast China since the mid-Holocene: Climate versus human activities

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DOI	10.1016/j.jas.2024.105938
	Drivers of land cover and plant compositional changes in Northeast China since the mid-Holocene: Climate versus human activities
	Niu, Honghao; Sun, Yuanhao; Wang, Jiangyong; Marquer, Laurent; Vessies, Jet; Sack, Dorothy; Chambers, Frank M.; Jie, Dongmei
发表日期	2024
ISSN	0305-4403
EISSN	1095-9238
起始页码	163
卷号	163
英文摘要	After the mid-Holocene, human activities gradually began having a notable impact on land cover and plant compositional changes. Evaluating the extent and spatiotemporal variations of the human versus climate impacts on regional ecosystems is becoming an area of focus of current global change research. The present study uses 478 AMS 14C dating records collected from 5473 archaeological sites to help evaluate variations in prehistoric population size in Northeast China, which suggest changes in the nature of human activities there since the midHolocene. Results indicate that prehistoric human impacts remained at a relatively low level during the ca. 7-4 ka interval except for two minor fluctuations. Human impacts on ecosystems in the study area gradually intensified after 4 ka when societies entered the Bronze Age. In addition, we used a novel methodological approach on three pollen datasets for reconstructing the land cover and plant compositional changes of the three different studied landscapes (steppe, forest, and steppe-forest ecotone) in Northeast China. Results show that total land cover changes in forests were relatively low (i.e. stable) over the studied time period owing to their comparatively higher plant diversity whereas significant fluctuations occurred in the steppe and the steppe-forest ecotone. By comparing these results with regional climate records, climate change was found to dominate plant changes during two periods-before ca. 6 ka and after ca. 0.8 ka. In addition, during ca. 6-4 ka BP, even though climate still played the most significant role in vegetation changes, anthropogenic impacts on plant changes were revealed for the steppe-forest ecotone. During 4-2.3 ka BP, the anthropogenic impacts on plants gradually increased and became the dominant driving force, especially for the forest and steppe-forest ecotone during ca. 2.3-0.8 ka BP. These varied impacts of human activity and climate change on vegetation among the study areas can be related to human migration trends and human subsistence patterns.
英文关键词	Land cover change; Ancient population size; Pollen analysis; Holocene; Northeast China
语种	英语
WOS研究方向	Anthropology ; Archaeology ; Geology
WOS类目	Anthropology ; Archaeology ; Geosciences, Multidisciplinary
WOS记录号	WOS:001174302000001
来源期刊	JOURNAL OF ARCHAEOLOGICAL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291152
作者单位	Jilin University; Northeast Normal University - China; University of Innsbruck; University System of Ohio; Ohio University; Lanzhou University; Xinjiang University; University of Gloucestershire; University of Gloucestershire; Jilin University; Northeast Normal University - China
推荐引用方式 GB/T 7714	Niu, Honghao,Sun, Yuanhao,Wang, Jiangyong,et al. Drivers of land cover and plant compositional changes in Northeast China since the mid-Holocene: Climate versus human activities[J],2024,163.
APA	Niu, Honghao.,Sun, Yuanhao.,Wang, Jiangyong.,Marquer, Laurent.,Vessies, Jet.,...&Jie, Dongmei.(2024).Drivers of land cover and plant compositional changes in Northeast China since the mid-Holocene: Climate versus human activities.JOURNAL OF ARCHAEOLOGICAL SCIENCE,163.
MLA	Niu, Honghao,et al."Drivers of land cover and plant compositional changes in Northeast China since the mid-Holocene: Climate versus human activities".JOURNAL OF ARCHAEOLOGICAL SCIENCE 163(2024).