草田轮作在黄土高原丘陵沟壑区旱作农业中的作用研究

作者： 曹利民   来源： 兰州大学 年份： 2010 文献类型 ： 学位论文 关键词： 可持续发展   草田轮作   循环农业模式  

描述： duction in the area is restricted by disadvantageous natural resources and environmental conditions, including low arable land area per capita, frequent drought events and a landscape dominated by mountains. Forage crop rotation systems could improve soil fertility, increase crop外eld and provide quality forage supplies for livestock production. Additionally, their adoption is considered a suitable means to advance sustainable agriculture development. In this study, the role and status of forage crop rotations in Tianshui city were studied.

全文：用地养地,提高农田的综合效益,使农作物获得高产稳产,实现土地可持续利用,给畜牧业提供优良饲料,缓解草畜矛盾,是农牧结合的纽带,是进行农业产业结构调整的重要措施；基于此,本研究在天水黄土高原沟壑丘陵区

甘肃中东部旱作农业区气候变化特征及其对农业生产的影响

作者： 刘艳艳   来源： 西北师范大学 年份： 2010 文献类型 ： 学位论文 关键词： 农业生产   气候变化   生育期   甘肃中东部旱作农业区  

描述： ogical characteristics of the crops and people’s production and business activities, largely dominated by light, heat, water, gas and other climatic factors.

全文：分布以及各气候资源配合协调程度;在此基础上,结合农业观测资料和农业统计相关资料,详细分析了研究区农作物生长发育、产量和农业种植结构的变化特征及其对气候变化的响应规律。 经研究初步得出以下结论:(1)近

气候变暖趋势下甘肃省粮食供需问题研究

作者： 王海强   来源： 甘肃农业大学 年份： 2010 文献类型 ： 学位论文 关键词： 甘肃省   粮食供需   气候变暖  

描述： Climate change have been one of the most important factors that influence the global development.

全文：。甘肃省地处黄土高原、青藏高原、内蒙古高原之间和西北干旱区、青藏高寒区、东部季风区三大自然区域的交汇处,降水不足,森林覆盖率低,是一个水资源匮乏、农业生产条件薄弱的内陆省份。农业生产受自然条件的制约很大

基于~（137）Cs技术的中国北方农牧交错带土壤侵蚀研究

作者： 姜洪涛   来源： 内蒙古师范大学 年份： 2010 文献类型 ： 学位论文 关键词： 土壤侵蚀   农牧交错带   ~Cs   示踪  

描述： ttention, but also agriculture and eco-environmental sustainable development important problems. Farming-pastoral Transitional zone in north China, as our county returning farmland to forest and returning cropping land to grassland are the focus areas, natural environment and socio-economic conditions shown a clear transition characterized by the transition zone of the interpenetration and staggered distribution of agriculture and animal husbandry, which is curbing desertification important ecological barrier, but also ecologically fragile belts.

全文：土壤侵蚀引起的土壤退化、水体污染等一系列的生态环境问题受到全世界的关注,是系到我国农业及生态环境可持续发展的重大问题。中国北方农牧交错带作为我国退耕还林、退牧还草的重点区,自然环境与社会经济条件

从仰韶到先周：全新世中晚期气候变化对黄、淮河流域文化发展的影响

作者： 孙倩   来源： 江西师范大学 年份： 2010 文献类型 ： 学位论文 关键词： 黄   考古文化   遗址类型   气候变化   生态坡   淮河流域  

描述： During the mid to late holocene, the human society experienced the alternation of the ancient culture and dynasty.

全文：对应将研究区域划分为坡肩、坡面、坡麓和坡基四区。生态坡是全新世气候能够脉动地影响中国文明演化的特殊的地理限制,文章重点阐释在全新世中晚期的时间轴上气候环境变化对黄、淮河流域人类文化演化的影响及其驱动

陕西猕猴桃产业发展及对策研究

作者： 李晓红   来源： 西北农林科技大学 年份： 2010 文献类型 ： 学位论文 关键词： 猕猴桃   产业   发展   规划  

描述： an City, Hanzhong City and Yangling region in Shaanxi Province, and on the basis of domestic and foreign literature, this paper describes the Practice and Enlightenment of the development of domestic and international kiwifruit industry,and analyses the status, problems and advantages of Shaanxi’s kiwifruit industry, discusses the principles of developing Shaanxi kiwifruit industry, market positioning and planning, proposes the Suggestions of the development of Shaanxi’s kiwifruit industry.

全文：通过对陕西省西安、宝鸡、渭南、汉中市和杨凌区的14县(区)猕猴桃产业发展状况进行了广泛调研,以国内外研究文献为基础,阐述了国内外猕猴桃产业的发展与启示,分析了陕西猕猴桃产业现状、问题和优势,探讨

沟湾遗址仰韶文化研究

作者： 郑万泉   来源： 郑州大学 年份： 2010 文献类型 ： 学位论文 关键词： 分期   文化因素   聚落形态   沟湾遗址   仰韶文化  

描述： ng

全文：沟湾遗址,原名下集遗址,以新石器时代堆积为主,包括仰韶文化、屈家岭文化、石家河文化、王湾三期文化四个时期,其中又以仰韶文化堆积最为丰富。最近的考古发掘表明在仰韶文化时期这一地区已经形成了环壕聚落

黄河流域农业立体污染综合防治模式研究

作者： 杨永坤   来源： 中国农业科学院 年份： 2010 文献类型 ： 学位论文 关键词： 农业立体污染   综合模式   黄河流域   仿真模型  

描述： he paper studies from the situation and feature of Agriculture Tri-dimension Pollution in Yellow River Basin areas, and divides it into several regions according to basin’s pollution feature by adopting the method of searching documents , research, systems analysis, quantitative and qualitative analysis and so on, and analyzes the problem of Agriculture Tri-dimension Pollution in Yellow River Basin areas from the view of tri-dimension and system by use of the theory of Environmental value, Technology Value, Ecology, Circular economy , uses System Dynamics to track dynamically the change in the future of the various variables in different modes and constructs the system mode of agricultural tri-dimension pollution in Yellow River Basin, and simulates the system;

全文：。论文研究取得了一下主要结论: 1、首次利用系统动力学方法构建的防治农业立体污染系统仿真模型与系统评价方法可靠。仿真技术建立的黄河流域农业立体污染综合防治技术模式在银川平原引黄灌区案例区实地验证结果表明:2001-2004年农业立体污染防治系统模型分析结果与案例区实测结果基本符合,最大相对误差<9.5%,最小误差

论陕北民间剪纸对当地区域性平面设计的影响

作者： 加纯华   来源： 西北大学 年份： 2010 文献类型 ： 学位论文 关键词： 区域性文化   陕北民间剪纸   民族化   区域性视觉设计  

描述： I’ he folk paper-cutting in China is rich in profound cultural connotations.

全文：。 陕北民间剪纸是黄土高原上剪纸民间艺术的重要组成部分,陕北民间剪纸体现着本地区域性的文化特征和思想内涵。在造型和审美上,陕北民间剪纸的创作由原来的实用性目的逐渐转变为实用和审美的结合。陕北民间剪纸是

新疆生产建设兵团屯垦与戌边关系研究

作者： 李丽   来源： 石河子大学 年份： 2010 文献类型 ： 学位论文 关键词： 戍边   关系   兵团   屯垦  

描述： a crucial componen t of the Xinjiang Uygur Autonomous region that is under the command of the autonomous region's party committee. Its major task is to develop the local economy and to partially perform administrative and legal functions towards the corps reclamation area. It is a special political, eC01101111C, militaristic and social organization with a long history. It is also undertakes the important task of implementing strategies for production and for territorial border control. Such implementation influences both regional and national economic substantiality and social stability. This article attempts to analyze the relationship between production and border control while exploring the possible solutions for existing problems within the region, based on a historical perspective. There are three chapters in this article. The first chapter introduces the history of agricultural development and border trooping, based on the practical experiences of Han, Tang, and Qing Dynasty. The second chapter analyzes the dichotomy of agricultural production and border trooping. Border trooping needs daily rationing from agricultural production. Meanwhile, agricultural production is conditioned by border trooping. Border control is the goal ensured by agricultural productivity. However, the status of each element differs in different eras. They are the two inseparable elements. In the third chapter, the author discourses the means of adjusting border control and production according to the latest domestic and international situations. Since the socialist economic system is perfecting itself, Chinese mentality is experiencing significant changes. At the same time, the international situation changes tremendously which makes the strategic status of the region become more and more important. The production and border control mission is facing new challenges because of ethnic separatists, terrorists, and religious extremists. The article is going to provide some constructive suggestions, based on the mentioned factors. Under historically new conditions, Bingtuan, as an important part of Xinjiang, as well as a politics-military-united organization, is carrying out new tasks. To accomplish such tasks, one needs to comprehend the relationship between agricultural production and border control correctly, that is to continue both elements' growth in a firm manner. Now, the corps development is at the door step of a new historic entrance. Therefore, Bingtuan needs to increase the speed of growth of its economic society in order to perform a better contribution to the country.

全文：新疆生产建设兵团(以下简称“兵团”)是新疆维吾尔自治区的重要组成部分,它实行党政军企合一的领导体制,在自治区党委的统一领导下,以经济建设为中心,依照国家和自治区的法律、法规,对所辖垦区行使一定的行政