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明清时期三地区的农田水利研究
作者: 康小兰   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 三陇地区   农田水利   明清时期  
描述: in agriculture. In recent years, the Western Development Drive (WDD) has been carried out, however, the problem of lack of water has still not been solved fundamentally.
全文:是通过什么方法解决缺水问题的,或许我们可以从他们的实践中寻求到一些对我们有益的思路,本文选择了明清时期三地区的农田水利开发作为研究对象,试图从中寻求到对今日西部大开发有益的帮助。 文章主要包括绪论
植物河道水流特性和稳定相关系研究
作者: 王燕   来源: 中国海洋大学 年份: 2009 文献类型 : 学位论文 关键词: 仙农熵   水流特性   生态河流   根系加固   河相关系  
描述: made for economic prosperity. At the same time, some man-made natural disasters have been paid more and more attentions , so the research on hydraulic characteristics of the river in recent years has been put on the agenda. Considering the ecological environment, flood control, pollution prevention and control method, and in view of the perspective of the urban landscape as well as the national strategic plan for sustainable development, the research the hydraulic characteristics of river and making river reasonably repair and ecological reconstruction will become a general trend, because that is a kind of remediation measure for human to be done unreasonable exploitation, and it also will be the strong protection of river resources and sustainable model for better using river resources in the future.
全文:的有力保障和可持续模式。 在对目前河道特性研究综述的前提下,本文对滩地种有植物的复式河道的水力特性、宽动力调整进行了物理模型试验研究。选用麦冬草作为复式河道的滩地上的滩地植被进行试验,通过使用ADV
甘肃省干旱气候灾害对气候变化的响应
作者: 王燕   来源: 兰州交通大学 年份: 2009 文献类型 : 学位论文 关键词: 甘肃省   干旱气候灾害   气候变化   响应  
描述: 以变暖为主要特征的全球气候变化对西北地区气候和生态环境的变化有着广泛而深远的影响。在全球变暖的背景下,甘肃省干旱气候灾害有愈演愈烈之势。气候变化对甘肃省干旱气候灾害有着显著影响。 本文利用由国家气候中心提供、课题组(2005DIB3J100)整编的气候要素观测资料、干旱灾情资料,查阅相关文献典籍,探
全文:的夏季旱涝特征进行了分析,在此基础上,分析了甘肃省干旱气候灾害对气候变化的响应。本文主要结论如下: (1)甘肃省干旱灾害发展至今有着它存在的自然和人文因素。甘肃省远离海洋,使得水汽输送受限,降水稀少且年
水帘洞石窟群的艺术特点和文化内涵
作者: 宋元   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 水帘洞石窟   艺术特点   文化内涵  
描述: Buddhist grotto art is a combination of culture and a product of Chinese culture.
全文:的丰富性、布局的统一性等。雕塑艺术的特点主要表现在:具有秀骨清风的西魏佛像雕塑艺术特色又有圆润、丰满、秀美的北魏雕刻艺术特色,还有宋代以来清秀雍容的新的艺术风格。水帘洞石窟群的文化内涵主要表现在: 1.水帘洞石窟群是儒、释、道三教相结合的产物。 2.水帘洞石窟群是农耕文化与游牧文化相结合的产物。
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:、廓、、鄯、洮、岷、秦、成、渭、甘、肃、瓜、西州以及北庭都护府,趁机占有了唐朝的大片领土,右地区几乎全部被吐蕃占有,使唐后期的西部边界仅维持在陇山一线。从地缘政治的角度看,唐朝方面从高祖到玄宗开元
马疏及“日损益斋”诗文研究
作者: 王忠禄   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 马疏   农事诗   唱和诗   陇右地域文化   陇右文学精神   日损益斋古文   陇右文学   日损益斋古今体诗   题画诗  
描述: e points about studying of Longyou area literature.
全文:只有辛勤劳动,克俭于家,才能在这片贫瘠的土地上生活下去。右人刚强、劲悍、纯朴、诚实,但同时又安贫乐道,易于满足。这是农耕文化与游牧文化双重合力的结果,但主要得力于右特殊的自然环境的含孕化育。[1]4
兰州市古树名木调查及保护研究
作者: 刘秀琴   来源: 兰州大学 年份: 2009 文献类型 : 学位论文 关键词: 古树养护与复壮技术   古树后续资源   保护性开发建议   兰州市   古树名木  
描述: e are scarce are one of the and nonrenewable of city devel engrave epoch stamp, They are often named "Green Antique" and "Live opment, Cultural relic" by having high ecological, social, economic value, scientific research, high ornamental and tourist, and historical memorial meaning.
全文:了借鉴,获得了以下主要研究结果。 1.兰州市共有零星分布的古树名木322株,分属19科26属30种。其中古树312株,名木10株。一级古树30株,二级古树44株,三级古树238株,建立了较为完整的古
辛店文化墓葬初探
作者: 刘晓天   来源: 中央民族大学 年份: 2009 文献类型 : 学位论文 关键词: 墓葬   分期   辛店文化  
描述: basin in Gansu Province and Huangshui basin in Qinghai Province. There have been found more than six hundreds tombs matching this kind of culture in these years, however, the related or comprehensive research are not many due to the limited sources. For this reason, I will indicate its developed sequences and cultural characteristics } which are based on materials from Xiaohandi tomb, Shanjiatou tomb as well as Lian huatai tomb. Research methods include phased analysis of the帅ological pottery and Comparative study on related tombs.
全文:辛店文化是分布于甘肃省洮、大夏河流域和青海省湟水流域的的一支青铜时代文化,这一文化多年来共发现了600余座墓地,但由于资料发表不完全等多方面的原因,有关该文化墓葬的综合性研究文章不多。基于此,本文
甘肃省现代农业发展路径的区域差异分析
作者: 滕泽峰   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 甘肃省   农业产业化   区域差异   现代农业   发展路径  
描述: portance to “Three Rural Issues”; on the other hand, it also shows that the complexity and long-term of the “Three Rural Issue”.
全文:2004年以来,中央一号文件连续锁定“三农”问题。一方面说明了中央对“三农”问题的持续关注,另一方面也说明了“三农”问题的长期性和复杂性。发展现代农业是破解“三农”问题的核心。现代农业包括实现农业现代化、农民现代化、农村现代化三个方面内容。农业现代化是发展现代农业的核心和基础。而农业产业化既是现代农业发展的必然趋势,同时又包含了农业机械化、化肥化、良种化、品牌化、标准化、规模化等诸多内容。自农业结构调整战略实施以来,全国各地现代农业规模不断扩大,产业化水平不断提高。例如:山东蔬菜产业和舍饲养殖产业,内蒙古乳品产业发展带动下的牛羊养殖产业,新疆农垦集团棉花产业和番茄产业等等。甘肃省现代农业产业优势明显,已初具规模,如:定西马铃薯产业,河西制种产业、酿酒产业,黄河灌区的蔬菜及花卉产业等。本文通过借鉴国内外发达国家现代农业的成功经验,结合甘肃省自身优势和现状,提出针对性的措施以加快甘肃省现代农业产业化发展。 本文总共分为五个章节,第一章给出论文选题的背景和意义,综述选题涉及的相关理论,界定论文相关概念。第二章通过比较国内外现代农业发展的不同模式,总结现代农业产业化发展的经验。第三章选取甘肃省具有代表性的农业产业,重点从农业产业化的角度详细分析这些产业的发展现状。第四章是本文的重点,本章从自然地理条件、产业选择及布局、关联产业发展等角度对甘肃省现代农业发展路径的区域差异进行分析,并重点对敦煌种业、甘肃森泰等公司做了案例分析,总结了这些企业产业化运作的经验和面临的困难。第五章为结论和政策建议部分。首先,概括甘肃省现代农业发展路径的区域差异成因;接着,结合甘肃省十一五规划纲要,提出以加快甘肃省现代农业产业化发展,推动农业结构优化、突出区域产业优势的政策建议。
明清时期巢湖流域农业发展研究
作者: 陈恩虎   来源: 南京农业大学 年份: 2009 文献类型 : 学位论文 关键词: 农业经济   农业发展   明清   巢湖流域  
描述: 区域农业经济研究是目前经济史研究的热门课题,至今已有许多成果问世。相对而言,巢湖流域农业经济的研究较为滞后,并且研究领域和成果比较分散,尚未形成全面、系统的研究体系,其主要原因应当是学术界常常会以明清时代的巢湖流域与全国其他区域相比不具备“典型性”为由,漠视了对巢湖流域的经济研究。因此,努力填补明清
全文:中的比较法,分析巢湖流域与安徽省其它区域、本地区前后期的关系、异同和兴衰。选题研究的主干性材料为地方志、家谱一类的地方文献,并充分发掘现存的文书资料,对《徽州千年契约文书·清民国编》第1卷和第2卷收
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