中国古代农业灾害防减体系研究

作者： 邵侃   来源： 西北农林科技大学 年份： 2009 文献类型 ： 学位论文 关键词： 农业灾害史   农业灾荒文献   减灾技术   灾荒赈救   灾害预防  

描述： n the 1920s when China was called “the Land of Famine” by an American relief worker, the phrase immediately gained currency.

全文：民在承受各种灾害打击的同时,也开始了认识灾害、防治灾害的探索和实践,采取了各种积极的措施防灾抗灾,取得了巨大的成就,主要表现在救荒制度建设和减灾技术进步两个方面。本文以历史时期的抗灾救荒活动为基本

中国古代农业灾害防减体系研究

作者： 邵侃   来源： 西北农林科技大学 年份： 2009 文献类型 ： 学位论文 关键词： 农业灾害史   农业灾荒文献   减灾技术   灾荒赈救   灾害预防  

描述： n the 1920s when China was called “the Land of Famine” by an American relief worker, the phrase immediately gained currency.

全文：民在承受各种灾害打击的同时,也开始了认识灾害、防治灾害的探索和实践,采取了各种积极的措施防灾抗灾,取得了巨大的成就,主要表现在救荒制度建设和减灾技术进步两个方面。本文以历史时期的抗灾救荒活动为基本

中国古代农业灾害防减体系研究

作者： 邵侃   来源： 西北农林科技大学 年份： 2009 文献类型 ： 学位论文 关键词： 农业灾害史   农业灾荒文献   减灾技术   灾荒赈救   灾害预防  

描述： n the 1920s when China was called “the Land of Famine” by an American relief worker, the phrase immediately gained currency.

全文：民在承受各种灾害打击的同时,也开始了认识灾害、防治灾害的探索和实践,采取了各种积极的措施防灾抗灾,取得了巨大的成就,主要表现在救荒制度建设和减灾技术进步两个方面。本文以历史时期的抗灾救荒活动为基本

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：很大程度上与抵御自然灾害相联系。文章探讨了历史时期青海地区的农业灾害情况,从选种、生产、加工、储藏的角度对该地区种植业减灾技术的发展进行了考察,对畜牧业则从畜种选育和畜疫防治的角度进行了分析,此外还

植物河道水流特性和稳定河相关系研究

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：河流的开发利用带来了一定的经济效益,为经济的繁荣做出了很大的贡献。但与此同时,人为造成的自然灾害不得不越来越引起人们的广泛关注,于是近年来河道的水力特性的研究已提上日程。无论是从生态、防洪、防治

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：与复壮技术要点。 古树养护管理措施主要包括:(1)修建树池与设置围栏;(2)水分调节与灌水;(3)养分补充与合理施肥;(4)整理地面环境与松土;(5)树皮、枯枝落叶覆地保护;(6)防治病虫害;(7)修剪