关键词
石羊河流域作物气候生产潜力及灌溉对策的研究
作者: 孙世坤   来源: 西北农林科技大学 年份: 2010 文献类型 : 学位论文 关键词: GIS   气候生产潜力   灌溉需水量   对策   CROPWAT  
描述: be given when fully and rational use of local climatic resources such as solar radiation, heat and water, while other conditions (such as soil fertility, carbon dioxide concentration, cultivation level etc.)
全文:提高。 (5)针对石羊河流域光合、光温和气候生产潜力的分析,认为可以从以下几方面提高流域气候资源利用率,进而提高现实产量。1)加强农田水利建设,保障作物生育期灌溉用水;2)选用和培育适宜的作物品种;3)提高作物降水生产潜力;4)充分利用土地自然资源,提高复种指数;5)发展设施农业。
震后重建中村落生产—生活空间的整治模式研究
作者: 王懿娜   来源: 天津大学 年份: 2010 文献类型 : 学位论文 关键词: 震后重建   村落   产业结构   空间布局   防灾减灾  
描述: isasters in China, the earthquake caused the largest number of deaths accounted for 54% of the total number, and 80-90% of China's earthquake occurred in rural areas.
全文:。我国农村地区范围广、人口多、、基础建设差、抗灾能力低等因素,致使地震的侵袭给农村带来及其严重的危害。为了在震后快速有效地进行农村地区震后重建工作,尽快恢复震后农村地区的正常生活和生产,同时提升震后村落
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
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:农业生产与气候变化关系密切,农作物生长发育的好坏和产量的高低,除了决定于农作物本身的生物学特性和人们的经营措施外,很大程度上受到光、热、水、气等气候要素的支配。我国西北旱作农业区完全依赖自然降水,是
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:,对草田轮作在旱作农业中的作用和地位进行了分析,调研了该区草田轮作推广的模式和分布区域,获得如下主要论点: (1)对甘肃省天水市旱作农业区生产条件和现状分析,草田轮作是适合该区农业生产条件的一种科学
西北旱作农区农作制优先序研究
作者: 成敏   来源: 西北农林科技大学 年份: 2010 文献类型 : 学位论文 关键词: 西北旱作农区   BP神经网络   农作制优先序   抗旱减灾对策?  
描述: est region, which c ombined with the water-saving, agricultural soil and water conservation techniques, and then taken " drought resistance, reduce erosion, increase efficiency" as a principle.
全文:参与及示范等方法和手段,系统总结西北旱作农区农作制类型,并根据西北旱作农区现行农作制模式粮食生产能力、土地生产效率、抗旱能力、经济效益及生态效益五个方面的综合评价,来进行农作制优先序的研究,最后提出
新疆农村剩余劳动力向休闲农业转移问题研究
作者: 袁红莎   来源: 新疆大学 年份: 2010 文献类型 : 学位论文 关键词: 休闲农业   新疆   农村剩余劳动力转移  
描述: us labor force is the focus of foreign and domestic scholars and they have achieved prominent fruit in many aspects.
全文:便是多民族聚居之地,由于历史、地理环境等原因,经济发展以农牧业为主,存在大量农村剩余劳动力。这不仅影响了农业劳动生产率的提高、农民收入的增加,阻碍了农村经济结构调整和新农村建设的步伐,而且增加了社会
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:表现出明显的过渡性特点,是农业和牧业相互渗透,交错分布的过渡区,它是遏制荒漠化的重要生态屏障,同时也是生态脆弱地带。 本研究在我国北方农牧交错带中选取2个研究区兰州和大同,在研究区采集背景样和全样共64个
西部特色杂粮产业发展的SWOT分析
作者: 苏旺   来源: 西北农林科技大学 年份: 2010 文献类型 : 学位论文 关键词: 战略   西部   SWOT分析   特色杂粮   比较优势  
描述: 特色杂粮包括荞麦(甜荞、苦荞)、糜子、谷子、籽粒苋、燕麦、薏苡、青稞、豌豆、绿豆、小豆、豇豆、芸豆、蚕豆、小扁豆、黑豆等,主要分布在东北、华北、西北、西南地区,其中陕西、甘肃、宁夏、青海、新疆、四川、贵州、云南、内蒙古等西部省区是我国特色杂粮的优势产区。特色杂粮在西部粮食生产中占有重要地位,对发展西
全文:生产比较优势;运用SWOT分析法对西部特色杂粮产业进行了详细分析,提出促进西部特色杂粮产业发展的思路和对策,研究得出如下主要结果: (1)与东中部相比,西部特色杂粮、谷类杂粮生产具有明显的规模比较
甘肃农业现代化进程测度及特色农业发展路径选择研究
作者: 吕文广   来源: 兰州大学 年份: 2010 文献类型 : 学位论文 关键词: 进程测度   路径选择   特色农业   现代化  
描述: 农业现代化是我国农业发展的目标和基本方向,也是我国全面实现国民经济现代化的关键与难点。改革开放30年来,我国农业发展取得了举世瞩目的成就,农业综合生产能力和整体素质都有了很大的提高,农产品供给由长期短缺向总量基本平衡、丰年有余转变,强有力地支撑了国民经济的发展。但截至目前,传统的农业生产方式还没有实
全文:农业现代化是我国农业发展的目标和基本方向,也是我国全面实现国民经济现代化的关键与难点。改革开放30年来,我国农业发展取得了举世瞩目的成就,农业综合生产能力和整体素质都有了很大的提高,农产品供给由长期
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