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| 1 | The emergence, development and regional differences of mixed farming of rice and millet in the upper and middle Huai River Valley, China显示文摘Mixed farming of rice and millet is one of the basic agricultural modes in the upper and middle Huai River Valley(HRV). According to the latest data, this agricultural mode appeared during the middle and late Peiligang Culture(7.8–7.0 ka BP) in the upper HRV, and then became a common subsistence economy in the end of the Neolithic(5.0–4.0 ka BP) in both the upper and middle HRV. However, it is still not clear how this mixed farming developed in the upper HRV after its occurrence, nor are the regional differences in the development of mixed farming between the upper and middle HRV during the Neolithic completely understood. In this paper, flotation and starch analyses were conducted on samples from eight archaeological sites in the upper and middle HRV. The results indicate that the mixed farming of rice and millet first appeared in the later phase of the middle Neolithic in the regions of the Peiligang Culture, then developed quite rapidly in the late Neolithic(6.8–5.0 ka BP), finally becoming the main subsistence economy at the end of the Neolithic in the upper HRV. However, there are obvious differences in the emergence and development of agriculture between the middle and upper HRV. Rice farming was the only agricultural system during the middle Neolithic, lasting until the end of the Neolithic, when mixed farming appeared in the middle HRV. Furthermore, although mixed farming appeared in both the upper and middle HRV during the end of the Neolithic, the roles of rice, foxtail millet and broomcorn millet in the subsistence economy were not the same. In general, millet was more widely cultivated than rice in the upper HRV, but rice occupied the same or a slightly more prominent position in the middle HRV at the end of the Neolithic. These results are significant for understanding the process of agricultural development and transformation, as well as human adaptation to climatic and cultural variability duringthe Neolithic. | YANG YuZhang CHENG ZhiJie LI WeiYa YAO Ling LI ZhanYang LUO WuHong YUAN ZengJian ZHANG Juan ZHANG JuZhong | 2016 | Science China Earth Sciences2016，59，9： | 11 |
| 2 | Plant food sources and stone tools' function at the site of Shunshanji based on starch grain analysis显示文摘The upper-middle Huai River valley(HRV) is located in the transition zone in the middle of eastern China. Previous studies have shown that the past populations in the upper HRV obtained plant food through gathering and cultivation of both rice and millet during the middle Neolithic. However, for the middle HRV it is not very clear what methods were used by humans to obtain plant food in that time. In this paper, starch grain analysis was carried out on 17 stone tools and 29 cauldron pottery sherds unearthed at Shunshanji(8.5–7.0 kyr BP), which is known as the earliest Neolithic site in the middle HRV excavated so far. Here, ancient starches from Coix lacryma-jobi, Triticeae, Oryza sativa, Trichosanthes kirilowii and one unidentified specie were recovered. This study contributes to the limited knowledge of food strategies as observed in the middle HRV. It demonstrates that both gathering and cultivation of rice took place during the middle-Neolithic. Among the identified species, Coix lacryma-jobi appears to have been the main plant food at Shunshanji. Moreover, it is clear that Oryza sativa was not consumed as much as other plant species according to the occurrence frequency of different starch grains. Starch grains were also found on the used surfaces of grinding stone implements as well as pestles, which means that these stone tools were used for food processing. In addition, axes from Shunshanji may also have been used for food processing as well as wood working because starches were also found on the edge of axes. Information about subsistence strategies and tool use at Shunshanji will also be helpful to understanding the utilization of plants and agricultural development in the middle HRV during the early-middle Neolithic period. | YANG YuZhang LI WeiYa YAO Ling CHENG ZhiJie LUO WuHong ZHANG JuZhong LIN LiuGen GAN HuiYuan YAN Long | 2016 | Science China Earth Sciences2016，59，8： | 9 |
| 3 | Study on Radiation Environmental Impact Assessment of Gaseous Effluent from Nuclear Site显示文摘According to the monitoring data of the gaseous effluent from the nuclear site,the radiation effect on the surrounding environment during the regular operation of the nuclear facilities were evaluated and analyzed.The results show that the radiation dose from the gaseous effluent to the population is very small when the facility | SONG Weijie CHENG Weiya HOU Lianjiao | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 4 | Research and Development of Normal Operating Radiation Environment Impact Assessment System of Qinshan Nuclear Power Plant显示文摘For the radiation environment impact assessment of Qinshan Nuclear Power Plant within the scope of 80km×80km,a system is built based on the distribution characteristic of Qinshan with many nuclear units.Through calculating the concentration of gas and liquid and normal status,the system is used to analysis the radiation dose effect on human body. | WANG Xinran CHENG Weiya ZHANG Liang | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 5 | Research and Development of Field-scale Wind Information and Pollution Dispersion Fast Analysis Model显示文摘In order to response to sudden nuclear accident,air pollution and city terrorist attack,predicting wind information and smoke dispersion in time is very important for early emergency decision.At present,large-scale models are mainly used to analysis the dispersion of wind and pollution in our country,but it simplified the | WANG Xinran YAN Chao MIAO Shiguang CHENG Weiya ZHANG Liang | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
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