Seventeen novel N-phenylbenzamide derivatives bearing a trifluoromethylpyrimidine moiety were synthesized via four-step reactions. Their antifungal and insecticidal properties were evaluated. Antifungal test results demonstrated that some of the synthesized compounds showed better in vitro bioactivities against Phomopsis sp., Botryosphaeria dothidea (B. dothidea), and Botrytis cinerea (B. cinerea) at 50 μg/mL than pyrimethanil. Unfortunately, the synthesized compounds revealed lower insecticidal activities against Spodoptera frugiperda (S. frugiperda) and Mythimna separata (M. separata) at 500 μg/mL than chlorantraniliprole.

Xinjiang serves as a hub for trans-Eurasian exchange. The Xinjiang hominids are supposed to be greatly influenced by the environment due to the fragile ecology and arid climate. As the territory with the most significant and complex geomorphic units in Inner Asia, Xinjiang features a diverse spectrum of geomorphic forms, including mountains, basins, deserts, river valleys, and oases. This paper presents a systematic summary of the geomorphic locations of 127 Bronze Age to early Iron Age (3000–200 BC) sites and cemeteries in Xinjiang and their economic strategies, exploring the different economic choices of ancient humans who lived in other geomorphic units, and how they adapted to their microenvironments. We have divided Xinjiang into five regions: the Junggar Basin, the Tarim Basin, the Western Tianshan Mountains, the middle Tianshan Mountains, and the Eastern Tianshan Mountains. Our study shows that there were different agropastoral economic modes in different geographical units. Roughly bounded by the Tianshan Mountains, the economy in northern Xinjiang was heavily based on animal husbandry, while oasis farming was popular in the Southern Xinjiang reigon. From the perspective of geomorphology, most sites are situated in mountain valleys, alluvial fans, and oases regions with surface water sources and fine-textured soil cover. Sites near mountains were more likely to develop a mixed pastoral-hunting economy, and oasis communities of a specific size were more likely to build a mixed agricultural-pastoral economy. In large river valleys or alluvial fans, it is expected that settlement clusters and large central settlements will grow, leading to the emergence of social complexity. This study will help to understand the complex “man-land” dynamics between 3000 and 200 BC in Xinjiang.

Archaeologists frequently invoke climate change as a driving cause for ancient expansions of human populations, but geomorphic changes can also play an important role in opening or closing routes of migration. In China, archaeological evidence demonstrates that valleys in the Jialing River's watershed were important routes for the movement of Neolithic populations from the catchments of the Yellow River to the Yangtze River. Here, we examine how fluvial geomorphological regime shifts may have also influenced the migration pathways and adaptive strategies of Neolithic people into the Sichuan Basin by using a combination of sedimentological and palynological analysis at Luojiaba, an archaeological site located on one of the eastern tributaries of the Jialing River. The results show that people settled on seasonally stable landforms, including the Zhonghe River floodplain at Luojiaba (5300–4800 cal. B.P.). They carried out fishing and hunting activities on the front edge of the floodplain close to the river channel and built dwelling features on the higher ground at the back edge of the floodplain, which was not affected by seasonal floods. We hypothesize that during the Holocene Climatic Optimum before 5500 cal. B.P., high water levels as well as severe surface erosion caused by a strong East Asian Summer Monsoon (EASM) blocked pathways into the upper reaches of the Jialing River watershed. Only after a series of cold, dry climate events driven by a decrease in EASM intensity ca. 5500–5000 cal. B.P. did water levels recede significantly. This allowed alluvial aggradation to occur, which created floodplains and terraces along the valley that may have opened a new route for the migration into the Sichuan Basin. Our results reveal the human–environment dynamics surrounding Luojiaba in the uplands of southwestern China and highlight the impact of coupled climatic‐geomorphic regime shifts on human settlement and subsistence strategies, across both space and time.