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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
甘肃省现代农业发展路径的区域差异分析
作者: 滕泽峰   来源: 西北师范大学 年份: 2009 文献类型 : 学位论文 关键词: 甘肃省   农业产业化   区域差异   现代农业   发展路径  
描述: portance to “Three Rural Issues”; on the other hand, it also shows that the complexity and long-term of the “Three Rural Issue”.
全文:产业优势明显,已初具规模,如:定西马铃薯产业,河西制种产业、酿酒产业,黄河灌区的蔬菜及花卉产业等。本文通过借鉴国内外发达国家现代农业的成功经验,结合甘肃省自身优势和现状,提出针对性的措施以加快甘肃省
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