中国传统水车研究

作者： 方立松   来源： 南京农业大学 年份： 2010 文献类型 ： 学位论文 关键词： 传统水车   农具史   农田灌溉  

描述： large-scale farming tool that can water continuously from the ground-surface water in the rivers, lakes, or pools, and is mainly applied to lifting water to the high ground or drain water in the low-lying farmland. Due to the reason that the traditional

全文：”,它体现了古代劳动人民的造物智慧,内含深刻的古代中国人的设计思想,即随地所宜；工役俱省；善假于物,凭智巧先；一器多用。通过对传统水车结构设计、工作原理、材料工艺、视觉设计等的解剖和分析,可以了解传统

中国北方现代人扩散与农业起源的环境考古学观察

作者： 吉笃学   来源： 兰州大学 年份： 2007 文献类型 ： 学位论文 关键词： 文化对环境的响应   BP事件   新旧石器过渡   中晚期过渡   现代人起源   农业起源   新石器   末次盛冰期   7.2   6.4kyr  

描述： 环境考古学是通过环境和文化之间关系的研究来揭示人类如何适应环境变化，如何调整自己的状态以缓解各种压力，从而实现规避风险保全自己的目的，为人类未来的生存和发展提供有益的借鉴。 人类对环境变化的反应一般采取两种策略：一是响应；二是适应。目前，现代人扩散和农业起源是了解和认识人类适应策略的最理想的案例。为

全文：的环境反应模式。结果发现： 1．在22kyr BP和21kyr BP左右的末次盛冰期，宁夏彭阳和甘肃秦安相继出现了与现代人有关的细石器制品，说明现代人已扩散到陇西黄土高原的腹地。 2．ZL005地点的黄土

神话与历史：大禹传说研究

作者： 杨栋   来源： 东北师范大学 年份： 2010 文献类型 ： 学位论文 关键词： 夏文化   神话与历史   大禹   古史辨派   大禹文化   大禹传说  

描述： by human and god. What is more important, Dayu spirit and culture due to him have a immeasurable effect on the formation process of Chinese civilization, on the political awareness of feudal state, on the lower-level life of the common people, and on the aesthetic culture of literature and art.

全文：文本叙事,它既表现出非逻辑性的“非叙述”性特点,又具有神圣叙事的原型编码性质；作为一种文化记忆,其演变与发展又打上了时代的烙印。鉴于此,本文对大禹传说主要作三方面解读： 1.历史考证——大禹传说中

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：体系、政治地理格局分析和安史之乱前疆界的伸缩三节;第四部分论述安史之乱后疆域退缩时期的政治地理格局,包括安史之乱对西北地区政治地理格局的影响、归义军献图归唐与疆界西移两节;第五部分论述政治地理格局变动与

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：个羽衣甘蓝品种 通过对不同激素配比的培养基上,9种基因型羽衣甘蓝的带柄子叶、下胚轴、真叶的再生情况进行比较分析,从中筛选出皱白1,06-56和05-25这3种高效再生基因型,其最适培养基分别为

清末民初关中地区的农田水利纠纷及其解决途径

作者： 赵淑清   来源： 陕西师范大学 年份： 2009 文献类型 ： 学位论文 关键词： 清末民初   关中地区   解决途径   农田水利纠纷   特征  

描述： society. The central Shaanxi Province lies in the northwest inner-land, lacking in water resources. Although there have been major farmland irrigation projects and perfect management system in the Qin and Han Dynasty, the times of the Sui and Tang Dynasty, the situation of water depletion could not be changed radically.

全文：、研究思路和方法进行说明。第二部分,清末民初关中地区的农田水利纠纷。这些水利纠纷案件主要是从《陕西水利月刊》中辑录出来的,少数来源于碑刻资料、人文笔记中的记载。第三部分,在分析典型水利纠纷案例的基础上

厚皮甜瓜耗水规律与调亏灌溉效应研究

作者： 高慧娟   来源： 甘肃农业大学 年份： 2010 文献类型 ： 学位论文 关键词： 光合特性   产量   调亏灌溉   耗水规律   水分利用效率   甜瓜  

描述： conducted full irrigation (CK), mild regulated deficit irrigation and moderate regulated deficit irrigation with melon varieties of Ymdi and Yujinxiang in three growth stages including sowing to flowering time, flowering to fruit expanding stage and fruit expanding to picking time.

全文：提供理论依据。主要结果如下： (1)甜瓜耗水量随灌水量的增大而增大。银帝各水分亏缺处理的耗水量与对照之间差异显著。除在膨大-开花期轻度水分亏缺处理外,玉金香其它各水分亏缺处理的耗水量与对照存在显著差异

黄土高原坡耕地不同耕作模式生态效应研究

作者： 杨凯   来源： 西北农林科技大学 年份： 2009 文献类型 ： 学位论文 关键词： 耕作模式   黄土高原   坡耕地   生态效应  

描述： teau the seeding season is cold and little rainfall. Soil temperature,moisture and fertilizer is an important factor in crop yield. So in this area dissemination conservation tillage of importance. Most of former researches in comparison between conservation tillage and conventional tillage. This experimentation compare with sereval conservation tillage's difference. Through this comparison, wind-water erosion in the Loess Plateau ecologically fragile areas and application of a reasonable choice of different measures to provide a reference of farming with a view to achieving the sustainable and health development of agriculture. In this study, selection of test sites in the Loess Plateau in northern China typical wind-water erosion area Shenmu, a no-tillage, straw mulch, plastic film mulching, mulching ridge, ridge of the five kinds of different measures of conservation tillage experiment, observe ground temperature,soil nutrients,soil moisture,yeild and soil and water loss.

全文：不同保护性耕作措施的小区的耕作层地温和土壤养分以及0-100cm土壤含水量进行了连续测定,得出如下主要研究结论: (1)在一天当中,随着土壤深度的增加,每层土壤的地温平均值逐渐降低并且地温的变化幅度逐渐

青海藏族阿柔部落社会历史文化研究

作者： 王云   来源： 兰州大学 年份： 2010 文献类型 ： 学位论文 关键词： 宁玛派   五世达赖   阿柔   百户   藏族人   河南县   安多政教史   祁连县   嘉措   扎乡  

描述： 本论文以青海藏族土著游牧部落阿柔部落为研究对象,以祁连县阿柔部落为研究重点,对其历史、宗教、社会和文化首次进行了系统研究,对探究我国新时期藏族部落的沉潜与其传统文化的传承、保护与发展具有重要的参考价值。 用历史文献法研究了该部落的族源与早期发展、分裂与迁徙以及阿柔三部的最终形成,厘清了其地理分布；对

全文：落高僧创建过的多座著名藏传佛教寺院；解读了其民间信仰和神山信仰中的原始遗留；以宁玛派寺院集团阿日扎寺和格鲁派帐房寺院阿柔大寺的创建与发展、寺院结构与学经制度、建寺模式与办寺理念为切入点,分析了寺院在我国

田园的心声——庆阳彭粉女剪纸艺术研究

作者： 马万军   来源： 西北师范大学 年份： 2009 文献类型 ： 学位论文 关键词： 剪纸艺术   田园生活   样式   彭氏   风格  

描述： At the same time, people’s life are glutted with living style of western modern culture and western modern thoughts, which make people feel themselves rich in goods, but ragged in spirit. Worry, dullness, despair and fear bow the heart and turn the spirit back to the dust.

全文：、人文环境和民俗环境,以及相关的生产生活方式、风俗习惯、主体情感等方面,探讨了彭氏剪纸艺术样式的来源及风格形成的种种因素和条件,深入分析了彭粉女剪纸艺术的价值取向和审美理念。论文试图回答下列一系列问题