| 从《齐民要术》等史籍看中国古代的肥料科学及其对后世农业发展的启示 |
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| 引用本文： | 杨栋,丁烨毅,黄鹤楼,朱佳敏,申子彬.从《齐民要术》等史籍看中国古代的肥料科学及其对后世农业发展的启示[J].农学学报,2020,36(1):82-87. |
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| 作者姓名： | 杨栋 丁烨毅 黄鹤楼 朱佳敏 申子彬 |
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| 作者单位： | 1. 农业农村部国际交流服务中心,北京100125;2. 南京农业大学中华农业文明研究院,南京 210095;3. 农业农村部人力资源开发中心,北京 100125 |
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| 基金项目： | 国家社科基金重点项目“丝绸之路中外农业交流研究”(16AZS005)。 |
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| 摘 要： | 贾思勰的《齐民要术》是中国6世纪的农业科学巨著,它也是中国古代肥料科学史籍记载的分界线。《齐民要术》记载了大量中国古代北方地区肥料科学知识,且其所述并非仅局限在北魏时期,也兼具了秦汉以来的北方地区肥料科学史籍资料。本文兼采《汜胜之书》《王祯农书》等史料中有关肥料的篇章,从而尽可能客观地展现中国古代肥料科学知识和应用的发展水平,以期为当前农业现代化和乡村振兴战略的贯彻实施提供有益借鉴。
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| 关 键 词： | 齐民要术 汜胜之书 王祯农书 肥料 土壤 |
| 收稿时间： | 2019/10/29 0:00:00 |
| 修稿时间： | 2019/11/24 0:00:00 |
Water Environment Response of Marine Aquaculture Ponds to Typhoon: Characteristics Analysis |
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| Zhao Wen,Liu Yannan,Wang Siming,Gu Peng.Water Environment Response of Marine Aquaculture Ponds to Typhoon: Characteristics Analysis[J].Journal of Agriculture,2020,36(1):82-87. |
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| Authors: | Zhao Wen Liu Yannan Wang Siming Gu Peng |
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| Institution: | 1. Center of International Cooperation Service, Ministry of Agriculture and Rural Affairs, Beijing 100125, China;2. Institution of Chinese Agricultural Civilization, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China;3. Human Resources Development Center, Ministry of Agriculture and Rural Affairs, Beijing 100125, China |
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| Abstract: | To explore the variation characteristics and key impact factors of water environment of marine aquaculture ponds during typhoon, based on the observation data of water environmental factors from 5 representative marine aquaculture ponds in Ningbo, including water temperature (T), dissolved oxygen (DO), salinity (S) and pH, we selected the heavy precipitation and non-heavy precipitation typhoons which had great influence on Ningbo from 2013 to 2017, and carried out the harmonic analysis and mathematical statistics. The results showed that: (1) the second order harmonics could reflect the variation of T, pH and DO in the aquaculture pond water, and the third order harmonics could well simulate the change of S; (2) during the critical period of typhoon impact, the proportion of short and medium-period harmonics in water environmental factors increased, and the proportion of short-period harmonics in heavy precipitation typhoon was higher than that in non-heavy precipitation typhoon; (3) on the basis of correlation analysis, by comparing the harmonic components and changes of water environment and meteorological elements, it could be concluded that the
changes of T and DO were mainly affected by temperature, and heavy precipitation had significant effects on S and pH. The harmonic method can better simulate the variation characteristics of water environment factors in aquaculture ponds during typhoon, and provide a new idea for the screening of key meteorological factors of
water environment. |
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| Keywords: | Typhoon Water environment of marine aquaculture ponds Periodic Impact factor Harmonic analysis |
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