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Thomas calculus 11th edition page 857
Thomas calculus 11th edition page 857







thomas calculus 11th edition page 857

In Eurasia, major changes in subsistence took place during the transition from the Neolithic to the Bronze Age ( Dong et al., 2017 Hanks et al., 2018), changes that were profoundly impacted by the emergence and intensification of early trans-Eurasian exchanges ( Svyatko et al., 2013 Dong et al., 2020). These differences were caused by the highly varying living environment of each region, which was related to fragmentation resulting from the geomorphological features of Yunnan Province. A comparison of our results with previously published archeobotanical data and isotopic evidence from human bones in other Bronze Age sites in Yunnan Province revealed high spatial variability in diets of human and subsistence strategies during this period. We argued that the local dry-hot environment was the reason for the accessibility of C 4 plants in the studied area. Humans predominantly consumed C 4 foods (e.g., millet) and C 4 food-fed animal protein sources, with smaller contributions from C 3 food plants (e.g., rice) and C 3 food-fed animal protein sources. We conducted stable isotope and archeobotanical analyses of human, animal, and plant remains at the Jiangxifen site, dated to ~900–400 BC, to explore human paleodiets and determine the environmental adaptation strategies adopted by humans in the middle valley of the Jinshajiang River in Yunnan Province. The study of human dietary structures is an effective means of elucidating the subsistence patterns of our prehistoric ancestors and can highlight the processes through which humans interacted with the environment. 3History and Culture School, Lanzhou University, Lanzhou, China.

thomas calculus 11th edition page 857

2Yunnan Provincial Institute of Cultural Relics and Archaeology, Kunming, China.1Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China.Minxia Lu 1, Xiaorui Li 2, Wenyu Wei 1, Yiwen Lu 1, Lele Ren 3 and Minmin Ma 1 *









Thomas calculus 11th edition page 857