按文献类别分组
关键词
石羊河灌区饲用甜高粱全膜双垄沟灌高产节水栽培技术
作者: 韩梅   来源: 畜牧兽医杂志 年份: 2016 文献类型 : 期刊 关键词: 瘦肉型猪   双垄   耐盐碱性   羊河   生物产量   河西走廊东端   种植技术   节水栽培技术   全膜   甜高粱  
描述: 石羊河流域位于甘肃河西走廊东端,是全国最缺水的地区之一,目前农业生产发展的瓶颈是水资源的匮乏,近年来,随着石羊河流域重点治理项目的实施,大量节水种植技术得到了推广和应用,饲用甜高梁全膜双垄沟灌高产
敦煌汉简中的农业
作者: 陈功   来源: 西北师范大学 年份: 2012 文献类型 : 学位论文 关键词: 蔬菜   谷物   敦煌汉简   畜牧养殖  
描述: 本文以传世文献为主,通过对敦煌汉简中含有农业信息的简牍进行分类整理,在相关专家学者研究的基础上,对敦煌汉简中农业的相关问题进行探讨。 本文由五部分构成: 第一部分为绪论,指出选题背景、目的及意义,并对相关问题的研究现状进行概述。 第二部分首先对有关”五谷”的问题进行陈述与辨析,其次分别对敦煌汉简中出
全文:工具和农业生产技术进行了分析,其中主要是两项内容: 1、铁制农具的应用; 2、牛耕技术推广; 本文认为汉简中反映出的汉代敦煌地区的农业发展,是汉代开发河西的一个重要组成部分。两汉坚持开发河西走廊地区的作用
甘肃地区马家窑文化的发现与研究
作者: 方群   来源: 社科纵横 年份: 2016 文献类型 : 期刊 关键词: 甘肃地区   何乐夫   裴文中   四川北部   文化面貌   马家窑文化   甘青地区   相对年代   黄文弼   考古工作  
描述: 马家窑文化是新石器时代晚期分布于甘、青地区的一支地方性文化,因首次发现于甘肃临洮马家窑而得名。过去相当一段时间,曾称为“甘肃仰韶文化”。它主要分布在甘、青两省,东至天水地区的清水县,西到河西走廊
齐家文化农业概述
作者: 王吉怀   来源: 农业考古 年份: 2016 文献类型 : 期刊 关键词: 五十年代   兴隆镇   泾川   八十年代   汉水流域   原始社会末期   骨铲   西吉   阿拉善   泾水  
描述: 面的工作做得很多,材料越来越充实。几年来,在甘肃境内渭河上游的天水、武山、秦安、陇西;黄河附近的临夏、临洮;泾水流域的平凉、泾川、庆阳;西汉水流域的西礼;河西走廊的武威以及宁夏西吉兴隆镇等地,共发现齐家文化遗址三百多处。就甘肃境内来说,齐家文化的分布是很广泛的,经过重
中国西北及中亚干旱区绿洲降水年内分配特点与现代节水农业
作者: 赖先齐   李万明   张伟   周建伟   李鲁华   张凤华   王江丽   来源: 农业资源与环境学报 年份: 2016 文献类型 : 期刊 关键词: 节水农业   降水系数   水资源   内涵节水   绿洲农业  
描述: 相反;河西走廊等年均降水量110.6mm,6—9月降水79.8mm,降水系数平均72.14%,水热配合强同期,冬春季相反;新疆处于之间。另外,研究区域"山地-绿洲-荒漠系统"各子系统降水量差异很大
饲用型牧草东科“巨谷”改土培肥效应研究
作者: 肖占文   金自学   陈广泉   秦嘉海   来源: 土壤通报 年份: 2016 文献类型 : 期刊 关键词: 盐土资源   巨谷   改土培肥  
描述:河西走廊盐土上种植饲用型牧草东科"巨谷",改土培肥效果明显。种植巨谷3年与CK比较,0~20cm土层中自然含水量增加99.72g kg-1、土壤贮水量增加171.78m3 hm-2、>0.25mm
生物活性肥配方筛选及其对土壤理化性质和玉米经济效益的影响
作者: 张春梅   赵静   闫治斌   秦嘉海   肖占文   王爱勤   来源: 水土保持通报 年份: 2016 文献类型 : 期刊 关键词: 理化性质   生物活性肥   玉米   经济效益  
描述: 选择甘肃省河西走廊淡漠土区连续种植制种玉米12a的试验地,采用田间试验方法,研究了生物活性肥配方的筛选及其对土壤理化性质和玉米经济效益的影响。结果表明,生物活性肥配方最佳组合为:功能性改土剂
文明传播视野下的汉代河西开发
作者: 刘俊玲   来源: 青海师范大学 年份: 2010 文献类型 : 学位论文 关键词: 河西   汉代   开发   文明  
描述: ral environments make the cultural dissemination possible. In archeological materials we can see plenty of Neolithic culture and Bronze culture,which may be nomads. Ywati, Wusun, Hun were lived here.Befor Han Dynastie ,the area was regarded as wild and woolly place.the Hun sprang up during Qin and Han Dynastie, Gansu Corridor became more and more imporant in military and politics affairs. After the establish of Western Han Dynasty ,the imperium rehabilitated for tens of years . Emperor han wudi change the plant to the Hun. I n the second year of yuanshou of Emperor han wudi(121BC),Huoqubing go on an expedition to Gansu Corridor,and wan,because the Hunye king killed the Xiutu king . The Hunye king surrenderred and leaded his man about 40000 .This is significant to the history of culture diaaemination. From then on,Han culture hold the dominant position in the war.The pattern of dissemination were war,politics and valueas.And the policy which Han made decision of the dissemination and the speed. After long time Interaction,the two change the hisroy of this area.Although some rejection and degradation happened,the new trail was certainty. Agricultural civilization took new tools to the area,and finally the Silk Road was freely.It made a contribution to culture dissemination.However,the aggressive e x p a n s i o n m a d e t h e immigrate and armies too huge,and led the crisis of ecologyand resource. Qiang civilians uprising during the Eastern Han Dynastie made the land desertificated. The process was not at one stroke,but a long time. Rely on force was to set up a unified ,multinational country.
全文:河西走廊位于农耕文明和游牧文明的交叉地带,具有文明传播的特殊的自然和人文基础。据考古资料显示,河西走廊曾经创造了丰富多彩的新石器和青铜文化,孕育了游牧经济。大月氏、乌孙和匈奴先后在河西活动。汉代以前
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
明清时期石羊河流域农业开发与环境变化研究
作者: 栾晓丽   来源: 陕西师范大学 年份: 2010 文献类型 : 学位论文 关键词: 石羊河流域   农业开发   明清时期   环境变化  
描述: In history;the central and local separatist all valued the development of this area. During the Ming and Qing Dynasties,with the renewed fighting in the northwest, coupled with the rapid growth of the national population, In order to consolidating border defense and detenting Mainland population pressure,the land development of this area resumevted,which impacted histoy development of this area very profoundly Academic research in this area is more included in the academic research for the whole Hexi area or the entire northwest region, special articles in this area are also mainly concentrated in the lower reaches of Shiyang River, but these research the upper, middle and lower reaches of the river as a whole rarely,the connection among the three is.very close essentially.So this object has larger space to continue researching. This text includes introduction and body text.the introduction introduces the writing causes ,implication,and retrospects intellectual history, explains research objectives,Methods and important and difficult points of this object at the same time.The body text divides into six chapters.The first chapter analyzes the natural conditions and social infrastructure in this area.The second chapter mainly deals with immigration status which Ming and Qing government organize and encourage the population in the mainland move to this area,which provides manpower resources for agricultural development in this area,and this chapter discusses effectiveness of the immigration.The third chapter discusses construction of water conservancy which agricultural development requires,and summarizes pearls and pitfalls of water conservancy construction in this area during this period.The fourth chapter mainly deals with agricultural development in this area during the Ming and Qing dynasties,This chapter begin by the reasons for agricultural development and policies which the government urge and offer for, discusses region of agricultural development, reclamation success and evolution of tonden in this area during this time.The fifth chapter mainly discusses environmental problems that because of large-scale development in this period,and analyzes performance, hazard and measures that local people inoder to protecting the environment had taken.The sixth chapter summarizes experience and lessons those because of large-scale development in this period during this time,and explains inspiration for today's development. Research of this object is primarily based on literature of the Ming and Qing Dynasties and local records, and notes data that through field visits get, in order to make the discussion Speci.ficly and reasonably.
全文:位于河西走廊东部的石羊河流域是河西三大内陆河流域之一,其军事地理位置重要,历代中央王朝和割据于此的地方势力都十分重视对本区的开发。明清时期,随着西北战事再起,加上这一时期全国人口数量的急剧增长,为了
< 1 2 3
Rss订阅