甘肃农业大学农耕特色库

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西部干旱地区农户旱地种植行为实证研究: 作者： 叶晶晶 来源： 南京农业大学 年份： 2010 文献类型： 学位论文 关键词： 农户旱地水资源决策干旱风险; 描述： ncentrated v}}ith 85% of the total dry lands. and it is important for the national economy and the countr<0's strategic agricultural growth. Northwest arid areas basically depend on natural precipitation. water shortage has seriously affected the farmers practices. The decision of farmers to plant dry land is a two-stage decision-making behavior: They first have to decide whether to plant dry land, and then decide what kind of crops planted in the dry lands. It is essential to find effective ways to raise the enthusiasm of farmers planting and reasonable arrangements for dry land crop structure. However. ver}} few people study dry land farming practice from the perspective of water shortages.; 全文：的旱地种植行为,农户的早地种植决策是两阶段决策行为：他们首先要决定是否种植旱地,然后再决定在旱地上种植何种作物。研究干旱地区影响农户种植旱地的因素有利于寻求有效的途径来提高农户种植积极性和合理安排旱地

中国传统水车研究: 作者： 方立松 来源： 南京农业大学 年份： 2010 文献类型： 学位论文 关键词： 传统水车农具史农田灌溉; 描述： large-scale farming tool that can water continuously from the ground-surface water in the rivers, lakes, or pools, and is mainly applied to lifting water to the high ground or drain water in the low-lying farmland. Due to the reason that the traditional; 全文：水旱灾害损失,达到保产。传统水车在促进农业经济发展的同时,自身也不断发展与完善,具有以下四个特点：一是产生时间早。距今有一千八九百年,比西方水车早一千五百年。二是种类繁多,形制复杂,动力多样。为适应各地水文

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