《齐民要术》农作物名物词研究

作者： 王莉群   年份： 2012 文献类型 ： 学位论文 关键词： 农作物名物词   命名   《齐民要术》  

描述： 名物词研究是古代汉语词汇研究的一个重要组成部分。本文主要选用《译注》（缪启愉、缪桂龙，上海古籍出版社，2006年第一版）为版本，以《齐民要术》的文献语言材料为依据，从音义联系、词的形成角度，对《齐民要术》中出现的农作物名物词进行个案分析，探寻其命名造词的四种方式方法：语音造词、语义造词、语法造词和修

全文：单音节词111个，约占名物词总数的32.6%，复音节词230个，约占名物词总数的67.4%。这些至少说明魏晋南北朝时期，复音节农作物名物词所占比重已相当可观，也从侧面反映出这一时期汉语词汇双音节步伐的加快

甘肃省东南部农田土壤有机碳时空变化及DSSAT模型模拟研究

作者： 李卓亭   来源： 兰州大学 年份： 2014 文献类型 ： 学位论文 关键词： DSSAT   作物系统模型   土壤有机碳   临夏县   空间分布格局   西峰区   徽县   县域尺度   榆中县   农田  

描述： 本研究工作包括两个部分的内容：对甘肃省东南部农田土壤有机碳分别进行基于地理信息系统(GIS)的时空变化特征和基于农业技术转化决策支持系统(DSSAT)模型的模拟研究。 1.甘肃省东南部农田土壤有机碳时空变化特征 甘肃省位于中国西北部,气候较干,植被稀疏,土壤侵蚀严重,土壤肥力较低,属于生态脆弱区。本

全文：本研究工作包括两个部分的内容：对甘肃省东南部农田土壤有机碳分别进行基于地理信息系统(GIS)的时空变化特征和基于农业技术转化决策支持系统(DSSAT)模型的模拟研究。 1.甘肃省东南部农田土壤有机碳

石羊河流域农田土壤水分有效性评价及动态模拟

作者： 王磊   来源： 西北农林科技大学 年份： 2014 文献类型 ： 学位论文 关键词： 土壤水分   作物蒸发蒸腾量   水分运动模拟   有效性  

描述： 农田土壤水分动态变化规律、有效性评价和土壤水分运动的模拟长久以来一直是干旱半干旱地区的研究热点问题，是灌溉预报和节水灌溉科学管理的理论依据。本论文对甘肃武威石羊河流域的春小麦、春玉米和裸地等不同作物类型农田土壤水分动态变化规律进行研究，评价了农田土壤水分的有效性,在此基础上，构建了农田分层土壤水分运

全文：类型农田土壤水分动态变化规律进行研究，评价了农田土壤水分的有效性,在此基础上，构建了农田分层土壤水分运动模型，并对模型进行了验证，获得以下主要结果： （1）石羊河流域裸地、春小麦地和春玉米地土壤水分

宁夏设施蔬菜连作障碍及综合防治技术研究

作者： 朱英   来源： 宁夏大学 年份： 2014 文献类型 ： 学位论文 关键词： 综合防治   影响因素   设施蔬菜   连作障碍  

描述： 设施农业是宁夏六大主导产业之一,种植面积由2005年的1.5万hm2迅速扩展到2013年的18万hm2,在引领现代农业发展、提升农业科技水平、增加农民收入等方面发挥了积极的作用。但随着宁夏设施作物连作时间的逐步延长,连作障碍现象日趋加重,严重制约了宁夏设施农业的可持续发展。解决设施农业连作障碍对保障

全文：研究结果如下： 1.设施瓜菜连作障碍因素 通过实地调研和室内分析,引起宁夏银川贺兰产业园与宁夏西吉华林公司万亩设施农业园区番茄连作障碍的主要原因是土壤次生盐渍化以及土壤结构的破坏；引起宁夏银川市兴庆区

古代保健“茶汤”的医学史研究

作者： 苏诺   来源： 中国中医科学院 年份： 2009 文献类型 ： 学位论文 关键词： 医学发展史   保健饮品   茶汤  

描述： ning traditional tea or non-tea drinks (soft drinks).

全文：发展过程,各种保健“茶汤”种类、功效与制作等相关内容,总结各时代保健“茶汤”发展规律与特点。 本文按时代分成六个部分论述,并根据各时期发展的特点拟订了标题: 1.先秦的水、酒、浆、茶 本章讨论了先秦时期

中国古代农家文化研究

作者： 熊帝兵   来源： 南京农业大学 年份： 2010 文献类型 ： 学位论文 关键词： 农家   民生   农业史   传统文化  

描述： od of Warring States (475-221 B.C.), attracting scholars' attention and becoming one of important schools then. After Qin Dynasty, scholars determining to study agriculture carried forward good traditions of Non自is in the Period of Warring States, enriched researching contents and fields, and enabled Non自is to develop in depth. In finial, those determining to study agriculture formed a group with researching agriculture as its distinguishing feature. What the group researched included agricultural ideologies, techniques of farming and cropping, methods of operation and management, measures of fighting and preventing agricultural calamities. The whole group showed its own styles in valuing agriculture and concerning people's livelihood. And those agricultural ideologies, science and technology, methods and spirits composed Nongjia's culture, the cream of which can afford us lessons to solve today's new problems.

全文：、储备节用,积极发掘备荒食物以减少灾年饿殍遍野之患。 古代农家在农业研究中始终秉承着民生关怀的传统和精神。竺可桢先生指出5000年历史中曾经历过四个寒冷期。其中后三个寒冷期,灾害频发、社会危机严重

中国古代农家文化研究

作者： 熊帝兵   来源： 南京农业大学 年份： 2010 文献类型 ： 学位论文 关键词： 农家   民生   农业史   传统文化  

描述： od of Warring States (475-221 B.C.), attracting scholars' attention and becoming one of important schools then. After Qin Dynasty, scholars determining to study agriculture carried forward good traditions of Non自is in the Period of Warring States, enriched researching contents and fields, and enabled Non自is to develop in depth. In finial, those determining to study agriculture formed a group with researching agriculture as its distinguishing feature. What the group researched included agricultural ideologies, techniques of farming and cropping, methods of operation and management, measures of fighting and preventing agricultural calamities. The whole group showed its own styles in valuing agriculture and concerning people's livelihood. And those agricultural ideologies, science and technology, methods and spirits composed Nongjia's culture, the cream of which can afford us lessons to solve today's new problems.

全文：、储备节用,积极发掘备荒食物以减少灾年饿殍遍野之患。 古代农家在农业研究中始终秉承着民生关怀的传统和精神。竺可桢先生指出5000年历史中曾经历过四个寒冷期。其中后三个寒冷期,灾害频发、社会危机严重

唐代西北地区政治地理格局变动研究

作者： 魏昀   来源： 陕西师范大学 年份： 2009 文献类型 ： 学位论文 关键词： 唐朝   疆域   羁縻府州   屯田   交通  

描述： th about three of culture and materials the country's territory changed a lot. The country's territory was in an extending period before and the An-Shi Armed Rebellion, and once extended to the Central Asia area.At the same time, the Tang government founded the Ji-Mi-Fu-Zhou system in the Western Regions. The situation changed rapidly when the An-Shi Armed Rebellion broke out. Then the central government mobilized the troops in the Western Regions to participating in putting down the Rebellion, so the border defence was weakened. Tu-bo took the chance to occupy a large amount of territory. Almost Long You Area was oppupied by Tu-bo later in Tang Dynasty. The thesis is divided into five chapters: political geography circumstance in northwest area in early Tang Dynasty，including the situation of physical geography and the nation regime; the political geography situation in the extending period of territory from Tai Zong to Gao Zong;the political geography situation in the stable period of territory from Wu-zhou era to An-Shi Armed Rebellion;the political geography situation in the shrinking period of territory after An-Shi Armed Rebellion;relationship between the change of political geography situation and economy and traffic. Conclusion: From A.D. 7th to 9th century，Asia-Erope Continent was a place where Tang, Da-shi and Tu-bo contended for political space. The country's power of politics, economy and military strengthened before An-Shi Armed Rebellion, and part of the Central Asia area belonged to Tang government. The territory reached to an unparalleled scale at that time, which can be divided into three parts: the capital area where Chang-an and Luoyang were located in was the empire's center of politics, culture and military; the Zheng-zhou that around the captals was where the finance of central government stemmed from; the Ji-mi-fu-zhou system Tang government founded in the frontier area was the military buffer zone with nation regimes in vicnity. At the same time, Tu-bo appeared in the stage of history in A.D 7th century. After the King Song-zan-gan-bu unified the Tibet plateau, Tu-bo's power strengthed rapidly and harassed Tang's frontiers inceasingly. The Tang government put the defense police actively into effect so as to resist Tu-bo's aggression and defend country's benefit in Long-you area. When An-Shi Armed Rebellion broke out, Tu-bo took the chance to occupy vast territory of Tang Dynasty, like Minzhou, Lanzhou, Kuozhou, Guazhou, and so on. Eventually, almost all Long-you areas belonging to Tang Dynasty was occupid by Tu-bo. In the field of geopolitics, the national power strengthened in the earlier stage of Tang Dynasty and stronger than Tu-bo. Tu-bo didn't have the strength contending with Tang Dynasty, even harassed the frontier once a while. Until the An-Shi Armed Rebellion, the Tang government had no more advantage and the national power was weakened.

全文：全国范围内编户齐民的正州,这些地区是中央政府的财富来源地:三是唐在边疆地区建立的羁縻府州系统,成为与周边民族政权对立时期的军事缓冲地带。这一时期,吐蕃登上了历史舞台,松赞干布统一西藏高原后,吐蕃实力逐渐壮大

农杆菌介导的抗寒基因转化羽衣甘蓝的初步研究

作者： 张文玲   来源： 西南大学 年份： 2010 文献类型 ： 学位论文 关键词： 抗寒转录调控基因TCF   羽衣甘蓝   甜菜碱合成基因BADH   转基因植株  

描述： siea. Low temperature is the key factor that limits the growth, colour and appreciatability in winter in the northern of China. Introducing foreign gene into kale through genetic engineering may create novel variety with cold tolerance. In this study, BADH(encoding betaine aldehyde dehydrogenase) and TCH(encoding transcription regulation factors) were used to be transformed into kale with Agrobacterium-mediated transformation.

全文：。其色彩丰富绚丽,叶形多样,观赏期长,耐寒性好,可耐多次-5℃～-10℃短暂霜冻,在园林绿化中具有重要的意义。我国北方冬季持续时间长,温度低,羽衣甘蓝在室外观赏的应用中抗冻性还有待于进一步的提高,使其在

唐朝前期农业经济伦理思想探析

作者： 刘珊珊   来源： 重庆师范大学 年份： 2009 文献类型 ： 学位论文 关键词： 农业   经济伦理   民为邦本   唐前期   公平   人与自然  

描述： Tang Dynasty, the further development period of the Chinese feudal society, was known as the age of feudal society by the historian.

全文：唐代,是中国封建社会的进一步发展时期,被史学家称为封建社会的盛世。它上承汉魏下启宋元,有学者称其代表着中国“中世”期的终结和“近世”中国的开始。在唐代近300年的发展历程中,中国的政治制度、社会组织