搜索结果: 1-4 共查到“农学 Volatility”相关记录4条 . 查询时间(0.12 秒)
Rise and fall of agrarian states influenced by climate volatility
Rise and fall agrarian states climate volatility
2015/11/12
Climate variability is one of the major forces in the rise and fall of agrarian states in Mexico and Peru, according to a team of researchers looking at both climate and archaeological records."We are...
Do hog breeds matter? Investigating the price volatility in the Taiwan’s auction market
black hog indigenous hog breeds price actions
2015/7/28
Th e study analyzes the dynamic diff erences between the prices of black hogs and white hogs in Taiwan and determines whether these two products should be viewed as homogeneous commodities by an...
Assesment of Ammonia Volatility from Fall Surface-Applied Liquid Dairy Manure
Manure Ammonia Volatility Nitrogen Cycle
2014/11/17
Ammonia emissions from dairy and livestock operations are of significant environmental and human health concern in the United States. Conservation of ammonia from fall surface-applied manure could ben...
Impact on the Chinese soybean markets from international prices volatility: Empirical study based on VEC model
Soybean market soybean import prices volatility financial crisis VEC model
2011/1/12
The paper uses VEC model to analyze the impact of international prices volatility on Chinese soybean spot and future markets before and since the outbreak of the global financial crisis.