Based on the analysis of the current situation and existing problems of traditional Chinese soft shelled turtle(Trionyx sinensis)breeding industry,combined with the fact that selenium enriched functional agriculture i...Based on the analysis of the current situation and existing problems of traditional Chinese soft shelled turtle(Trionyx sinensis)breeding industry,combined with the fact that selenium enriched functional agriculture is the future demand of mankind,this paper put forward the necessity of developing selenium enriched Chinese soft shelled turtles and promoting the sustainable development of modern agriculture:the development of selenium-enriched Chinese soft-shelled turtle is the need of the consumer market for food safety,the need to reduce the production cost of soft-shelled turtles and improve the production efficiency of soft-shelled turtles,the need to enrich the Chinese soft-shelled turtle market,and the need to promote the sustainable development of modern agriculture(fishery).展开更多
The agricultural green development process is sorted out from the historical perspective,combined with the“No.1 Central Documents”issued by the central government over the years and the relevant policy documents.Thr...The agricultural green development process is sorted out from the historical perspective,combined with the“No.1 Central Documents”issued by the central government over the years and the relevant policy documents.Three stages are concluded,including embryonic stage,development stage,strategic promotion and promotion stage.Agricultural green development has three major goals,including providing high-quality agricultural products,efficient utilization of agricultural resources,protection and construction of beautiful countryside.The effective paths for achieving the above goals are agricultural supply-side structural reform,agricultural modernization and rural revitalization.The green development of agriculture is the intersection of the three to alleviate resource environmental pressure and change agricultural production mode.展开更多
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 an...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.展开更多
基金Supported by Guangxi Science and Technology Program Project of China(GK AD19245169)Yulin City Scientific Research and Technology Development Plan Project(YSK 20204026,2019Cxpt00A4,YSK 20202001,YSK 20204038).
文摘Based on the analysis of the current situation and existing problems of traditional Chinese soft shelled turtle(Trionyx sinensis)breeding industry,combined with the fact that selenium enriched functional agriculture is the future demand of mankind,this paper put forward the necessity of developing selenium enriched Chinese soft shelled turtles and promoting the sustainable development of modern agriculture:the development of selenium-enriched Chinese soft-shelled turtle is the need of the consumer market for food safety,the need to reduce the production cost of soft-shelled turtles and improve the production efficiency of soft-shelled turtles,the need to enrich the Chinese soft-shelled turtle market,and the need to promote the sustainable development of modern agriculture(fishery).
文摘The agricultural green development process is sorted out from the historical perspective,combined with the“No.1 Central Documents”issued by the central government over the years and the relevant policy documents.Three stages are concluded,including embryonic stage,development stage,strategic promotion and promotion stage.Agricultural green development has three major goals,including providing high-quality agricultural products,efficient utilization of agricultural resources,protection and construction of beautiful countryside.The effective paths for achieving the above goals are agricultural supply-side structural reform,agricultural modernization and rural revitalization.The green development of agriculture is the intersection of the three to alleviate resource environmental pressure and change agricultural production mode.
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA05130503)the Philosophy and Social Science Planning Project of the Ministry of Education (Grant No. 15YJA780003)+1 种基金the National Natural Science Foundation of China (Grant Nos. 41472148, 41502164)the Fundamental Research Funds for the Central Universities (Grant No. 201321101)
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.
