Water, dust, and agro-pastoralism: Modeling socio-ecological co-evolution of landscapes, farming, and human society in southeast Kazakhstan during the mid to late Holocene

Abstract

How can archaeologists contribute to tracing the evolutionary dynamics of the coupled human-natural systems that characterize the Anthropocene? We present a Socio-Ecological Systems (SES) framework to integrate models of human and natural landscape formation processes in the mid to late Holocene on the Talgar alluvial fan on the north slope of the Tian Shan Mountains in the area known as “Semirech’ye” (“Seven Rivers”). We compare our model to the physical evidence from sediment profiles and the archaeological record of subsistence and settlement over the Holocene. The resulting coupled model situates “niche construction theory” and the idea of “transported landscapes” within the SES perspective to focus on how couplings and feedbacks between humans and biophysical processes create or limit opportunities for different modes of subsistence over time, especially during periods of expansion and colonization of new territories. In the Talgar region, we hypothesize that initial, low-level human manipulations of surface water flow across an alluvial fan coupled with aeolian and fluvial sediment dynamics in a series of positive feedbacks to increase the possibilities for agricultural production over time. The human niche in Talgar therefore became increasingly sedentary and agricultural in emphasis compared to niches constructed in other parts of Central Eurasia.