Li Liu

Prof. Dr. Li Liu

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
18 March 2013 in Proceedings of the National Academy of Sciences
Verified
Journal Article
Closed access
PDF file
LLLi Liu
Li Liu
SBSheahan Bestel
Sheahan Bestel
JSJinming Shi
Jinming Shi
YSYanhua Song
Yanhua Song
XCXingcan Chen
Xingcan Chen
Three grinding stones from Shizitan Locality 14 ( ca. 23,000–19,500 calendar years before present) in the middle Yellow River region were subjected to usewear and residue analyses to investigate human adaptation during the last glacial maximum (LGM) period, when resources were generally scarce and plant foods may have become increasingly important in the human diet. The results show that these tools were used to process various plants, including Triticeae and Paniceae grasses, Vigna beans, Dioscorea opposita yam, and Trichosanthes kirilowii snakegourd roots. Tubers were important food resources for Paleolithic hunter–gatherers, and Paniceae grasses were exploited about 12,000 y before their domestication. The long tradition of intensive exploitation of certain types of flora helped Paleolithic people understand the properties of these plants, including their medicinal uses, and eventually led to the plants' domestication. This study sheds light on the deep history of the broad spectrum subsistence strategy characteristic of late Pleistocene north China before the origins of agriculture in this region.

3 June 2019 in Proceedings of the National Academy of Sciences
Verified
Journal Article
Closed access
PDF file
LLLi Liu
Li Liu
JWJiajing Wang
Jiajing Wang
MLMaureece J. Levin
Maureece J. Levin
NSNasa Sinnott-Armstrong
Nasa Sinnott-Armstrong
HZHao Zhao
Hao Zhao
TZTian’en Zhang
Tian’en Zhang
In China, pottery containers first appeared about 20000 cal. BP, and became diverse in form during the Early Neolithic (9000–7000 cal. BP), signaling the emergence of functionally specialized vessels. China is also well-known for its early development of alcohol production. However, few studies have focused on the connections between the two technologies. Based on the analysis of residues (starch, phytolith, and fungus) adhering to pottery from two Early Neolithic sites in north China, here we demonstrate that three material changes occurring in the Early Neolithic signal innovation of specialized alcoholic making known in north China: ( i ) the spread of cereal domestication (millet and rice), ( ii ) the emergence of dedicated pottery types, particularly globular jars as liquid storage vessels, and ( iii ) the development of cereal-based alcohol production with at least two fermentation methods: the use of cereal malts and the use of moldy grain and herbs ( qu and caoqu ) as starters. The latter method was arguably a unique invention initiated in China, and our findings account for the earliest known examples of this technique. The major ingredients include broomcorn millet, Triticeae grasses, Job’s tears, rice, beans, snake gourd root, ginger, possible yam and lily, and other plants, some probably with medicinal properties (e.g., ginger). Alcoholic beverages made with these methods were named li , jiu , and chang in ancient texts, first recorded in the Shang oracle-bone inscriptions (ca. 3200 cal. BP); our findings have revealed a much deeper history of these diverse fermentation technologies in China.

27 June 2018 in Antiquity
Verified
Journal Article
Closed access
PDF file
LLLi Liu
Li Liu
MLMaureece J. Levin
Maureece J. Levin
MBMichael F. Bonomo
Michael F. Bonomo
JWJiajing Wang
Jiajing Wang
JSJinming Shi
Jinming Shi
YSYanhua Song
Yanhua Song
Northern China has been identified as an independent centre of domestication for various types of millet and other plant species, but tracing the earliest evidence for the exploitation of wild cereals and thus the actual domestication process has proven challenging. Evidence from microscopic analyses of stone tools, including use-wear, starch and phytolith analyses, however, show that in the Shizitan region of north China, various plants have been exploited as far back as 28000 years ago, and wild millets have been harvested and processed by the time of the Last Glacial Maximum, 24000 years ago. This is some 18000–14000 years before the earliest evidence for domesticated millet in this region.

3 April 2014 in The Holocene
Verified
Journal Article
Closed access
LLLi Liu
Li Liu
LKLisa Kealhofer
Lisa Kealhofer
XCXingcan Chen
Xingcan Chen
PJPing Ji
Ping Ji
Recent archaeological and archaeobotanical data suggest a very long tradition for the broad-spectrum subsistence economy in North China. It can be traced back at least to the Upper Paleolithic, in the last glacial maximum, and it continued into the early Neolithic period. Subsistence strategies also show great regional variation, suggesting a complex mosaic of adaptations in the transition to agriculture. The research reported here focuses on the plant-derived subsistence economy of the earliest Neolithic communities in the Daihai Lake area, Inner Mongolia, where the ecosystem was sensitive to climatic fluctuations. Neolithic groups likely migrated to the region as part of population expansion from the Central Plain. Previous scholars have suggested that this expansion was due to a search for agricultural land for millet farming. By examining residue remains and usewear patterns on sandstone grinding stone tools unearthed from the Shihushan I and Shihushan II sites, dating to the mid-5th millennium bc, we show that the earliest Neolithic settlers in Daihai appear to have enjoyed a way of life making use, and possibly management, of a wide range of plants, including various underground storage organs (tubers, roots, rhizomes, and bulbs), nuts, and wild grasses, while engaged in a limited level of millet production. This study adds to a growing literature that questions the economic significance of early cereal crops in subsistence system, suggesting that it is important to understand the role of roots and tubers in the development of early agriculture in Neolithic North China.

12 December 2022 in Proceedings of the National Academy of Sciences
Verified
Journal Article
Open access
LLLi Liu
Li Liu
JCJian Chen
Jian Chen
JWJiajing Wang
Jiajing Wang
YZYanan Zhao
Yanan Zhao
XCXingcan Chen
Xingcan Chen
Sino-Tibetan is the second largest language family in the world. Recent linguistic and genetic studies have traced its origin to Neolithic millet farmers in the Yellow River region of China around 8,000 y ago and also suggested that initial divergence among branches of Sino-Tibetan coincided with expansion of the Neolithic Yangshao culture to the west and southwest during the sixth millennium BP. However, archaeological investigations to date have been insufficient to understand the lifeways of these migrant Proto Sino-Tibetan speakers. Here, we present the results of the interdisciplinary research on the material culture and ritual activities related to the initial southwestward migration of Yangshao populations, based on evidence from microfossil remains on ceramics at three sites in Gansu and Sichuan, regional archaeological contexts, and ethnographic accounts of modern Gyalrong Tibetans. The first Yangshao migrants may have integrated with indigenous hunter-gatherers in the NW Sichuan highlands, and adopted broad-spectrum subsistence strategies, consisting of both millet farming and foraging for local wild resources. Meanwhile, the migrants appear to have retained important ritual traditions previously established in their Yellow River homelands. They prepared qu starter with Monascus mold and rice for brewing alcoholic beverages, which may have been consumed in communal drinking festivals associated with the performance of ritual dancing. Such ritual activities, which to some extent have survived in the skorbro-zajiu ceremonies in SW China, may have then played a central role in maintaining and reinforcing cultural identities, social values, and connections with the homelands of the Proto Sino-Tibetan migrants.

29 May 2020 in Archaeological and Anthropological Sciences
Verified
Journal Article
Closed access
PDF file
LLLi Liu
Li Liu
JWJiajing Wang
Jiajing Wang
HLHuifang Liu
Huifang Liu