关键词
抗战时期国民政府粮食征收述论
作者: 陈丹丹   来源: 湘潭大学 年份: 2009 文献类型 : 学位论文 关键词: 粮食征收   抗日战争   田赋征实   国民政府  
描述: t of the
全文:抗战全面爆发后,随着国土的大片沦丧,尤其是东北产粮区和东南沿海财政主要来源地的丧失,国民政府危机四伏,除军事压力外,粮食危机和财政形势尤为严峻。特别是抗日战争进入相持阶段,关乎民众和部队生计的问题
阿克苏绿洲种植制度演变规律及发展对策
作者: 鱼静   来源: 新疆农业大学 年份: 2009 文献类型 : 学位论文 关键词: 演变规律   发展对策   种植制度   阿克苏绿洲   驱动力  
描述: rategic adjustment of structure in agriculture and rural economics, work relating agriculture, rural areas and farmers remains top priority. Especially in China's accession to the WTO and national implementation of the western development strategy, the market-oriented agriculture, the process of internationalization for Aksu oasis agricultural production has brought greater opportunities and challenges.
全文:粮食安全进行评价与预测、深入研究阿克苏绿洲种植制度演变发展对策,为阿克苏绿洲建立合理可持续发展的种植制度提供了依据。研究结果表明: (1)自1978年以来,阿克苏绿洲种植业结构逐渐由以粮为纲向粮、经二元结构
中国北方地区节水农作制度研究
作者: 王婧   来源: 沈阳农业大学 年份: 2009 文献类型 : 学位论文 关键词: 北方地区   节水   节水技术   节水农作制度   种植模式  
描述: ium between the grain production and water resource: the drought and the irrigation area in northeast china, the drought and the irrigation region in Huanghuaihai area, the drought and the irrigation area in northwest china.The article analized the characteristic of water using of the main crops and the main cropping systems, compared the economic benefit of the water-saving planting patterns, studied the economic benefit, the water-saving benefit and participatory farmers survey results etc. of the water-saving technologies.
全文:本研究针对我国北方地区粮食生产与水资源不匹配的现状,分东北灌区、东北旱区、黄淮海灌区、黄淮海旱区、西北灌区、西北旱区六个区域研究各区主要作物及种植制度的耗水特性,给出节水种植结构调整建议,比较各区
中国古代水能利用研究
作者: 许臻   来源: 南京农业大学 年份: 2009 文献类型 : 学位论文 关键词: 自然资源   水能利用   农业科技史   机械史  
描述: ll use of such a resource.
全文:,水能机械在北方广泛运用于粮食加工。五代以后,伴随着经济中心的南移以及北方水环境的恶化,水能利用开始转移至南方。宋元时期,古代水能利用进入全盛阶段。进入明清之际,中国古代水能利用的发展进入停滞阶段。在
清代康雍乾时期的民食安全研究
作者: 周全霞   来源: 江南大学 年份: 2009 文献类型 : 学位论文 关键词: 民食   康雍乾时期   粮食安全  
描述: roblem at all times and in all over the world.
全文:民以食为天,民食安全关系国计民生,是古今中外都必须关注和解决的问题。当代中国是一个有13亿人的人口大国,其民食安全状况在整个世界粮食安全系统中具有举足轻重的位置。人均耕地资源不足、自然灾害频发
历史时期青海地区自然灾害与区域社会经济发展研究
作者: 刘雯   来源: 西北农林科技大学 年份: 2009 文献类型 : 学位论文 关键词: 青海地区   自然灾害   历史时期   社会效应  
描述: e distinctive features in Western and Eastern of Qinghai's natural disaster in history which based on the historical materials and studied the Interaction Relationship Between the natural disasters and social-economic development, we used the theory and analysis method from the research area of disaster history and agricultural history, try to have a comprehensive investigation between the natural disasters and social-economic development in the history of Qinghai. Firstly, we divided Qinghai into two parts: the eastern and the western, under the study of the geographical features of Qinghai. We summarized the natural disaster of the eastern part mainly as flood, drought, hailstone and frost with distinctive features of variety, continuity and growth accompany while the western is mainly as earthquake and snow disaster with distinctive features of unexpected and severity. Secondly , as the great influence on agriculture and the resulting changement in agriculture is most profound, so the progress in agriculture sciences is related to withstand the natural disaster in some ways. The paper discussed the natural disasters affected Qinghai's agriculture in history, from the aspect of seed selection 、 production 、 processing and storage to invest the development of mitigation techniques in this area. And for the livestock we investigated in two sides bred of livestock and prevention of livestock, furthermore we invested the mitigation techniques which full of geographical characteristics. Thirdly, the article investigated the relationship between natural disasters and the economic fluctuation in Qinghai from the perspective of the change in population and grain price. And then, we analyzed the influence on regional industrial structure from the aspect of expansion in rural areas, the relationship between agriculture and animal husbandry, disaster-relief crop introduction and the structure of animal species. In the view of pastoral economic exchange, we studied the interaction relationship between the natural disasters and economic development. Finally, we studied the interaction relationship between the natural disasters and social development in Qinghai. What is more, we analyzed the policy which includes grain storage, relieved and help the people in disaster , reduced taxes to control the disaster in history. We wish these could be helpful to the prevention and control of natural disasters in Qinghai today.
全文:考察了具有地域特色的减灾技术。 再次,从自然灾害与人口数量及粮食价格波动的角度考量自然灾害与青海地区区域经济波动的关系;从农区扩张、农牧关系、抗灾作物的引种、畜种构成的角度对该地区自然灾害对区域产业结构
民国时期西北移民垦荒事业研究
作者: 王永强   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 移民思潮   民国时期   垦荒   影响   西北  
描述: of the Republic of China. A large body of insightful research has been carried out on the issue in recent years, yet there are still problems unsolved in the field.
全文:国人对边防问题、人口与粮食问题的忧虑是产生移民思潮的主要原因。在分析移民思潮问题时,文章主要论述了两种观点,一为主张大量向西北移民;二为“罗致人才先于大量向西北移民”。关于移民殖边的筹划上,主要介绍
清代甘肃黄土高原的土地利用
作者: 刘维   来源: 陕西师范大学 年份: 2009 文献类型 : 学位论文 关键词: 清代   农业技术   土地制度   甘肃黄土高原   土地资源  
描述: ainly chooses three aspects, the quantity and quality of farmland, the land system and agricultural technology, to analysis the fact that the land system, the land utilization patterns and the selection of agricultural technology are constrained by natural environment and land resources, accordingly reveal the main-land relationship which is influenced by natural environment. The thesis is composed of four parts.
全文:地区并非普遍现象,而且当地农民获得永佃权的方式以垦荒为主,较为单一。有关耕作制度的特点,本文是从作物构成和复种制度两个方面说明的,由于水热条件的限制,本区农作物以传统的粮食作物为主,而且农作物的生长期往往
清代甘肃黄土高原的土地利用
作者: 刘维   来源: 陕西师范大学 年份: 2009 文献类型 : 学位论文 关键词: 清代   农业技术   土地制度   甘肃黄土高原   土地资源  
描述: ainly chooses three aspects, the quantity and quality of farmland, the land system and agricultural technology, to analysis the fact that the land system, the land utilization patterns and the selection of agricultural technology are constrained by natural environment and land resources, accordingly reveal the main-land relationship which is influenced by natural environment. The thesis is composed of four parts.
全文:地区并非普遍现象,而且当地农民获得永佃权的方式以垦荒为主,较为单一。有关耕作制度的特点,本文是从作物构成和复种制度两个方面说明的,由于水热条件的限制,本区农作物以传统的粮食作物为主,而且农作物的生长期往往
甘肃省景泰县农业生态经济系统能值分析
作者: 林长伟   来源: 兰州大学 年份: 2009 文献类型 : 学位论文 关键词: 景泰县   可持续发展   能值分析   农业生态经济系统  
描述: le to measure and compare all kinds of energy.
全文:系统的环境容纳能力、能值效率、生态经济效益,系统结构功能特征及可持续发展能力。 景泰川电力提灌工程的建设和发展,使过去干旱、荒芜的景泰川逐渐被建成具有全国意义和西北地区实际意义的粮食生产基地、瓜果
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