منابع مشابه
Weather Anomalies, Crop Yields, and Migration in the US Corn Belt
We investigate the influence of weather anomalies on net migration in the Eastern United States using a county-level panel for the period from 1970 to 2009. There is a significant weather-migration relationship in the Corn Belt, but not outside of it. We present evidence that weather affects migration through its influence on agricultural productivity using an instrumental variables approach. O...
متن کاملEstimating the Effects of Weather Variations on Corn Yields using Geographically Weighted Panel Regression
Through a geographically weighted panel regression analysis, we demonstrate the spatially varying relationship between weather and corn yields. A balanced panel data of 958 U.S. corn production counties for the period 2002-2006 is used. The results indicate that the relationship between weather and corn yield has large spatial variability. In specific, temperature tends to have negative margina...
متن کاملDeconstructing Indian cotton: weather, yields, and suicides
Background: Cotton with coevolving pests has been grown in India more than 5000 years. Hybrid cotton was introduced in the 1970s with increases in fertilizer and in insecticide use against pink bollworm that caused outbreaks of bollworm. Hybrid Bt cotton, introduced in 2002 to control bollworm and other lepidopteran pests, is grown on more than 90 % of the cotton area. Despite initial declines,...
متن کاملInteractions of Nitrogen, Weather, Soil, and Irrigation on Corn Yield
but no difference in yields with increased N when the season was cool. Numerous factors that affect corn yield in the Northern Great Soil moisture status is also important in maintaining Plains are not considered in current N fertilizer recommendations. A maximum corn yields, and maintaining optimal soil moislinear model to describe the interactions of N fertility, weather, soil, ture is facili...
متن کاملImpact of derived global weather data on simulated crop yields
Crop simulation models can be used to estimate impact of current and future climates on crop yields and food security, but require long-term historical daily weather data to obtain robust simulations. In many regions where crops are grown, daily weather data are not available. Alternatively, gridded weather databases (GWD) with complete terrestrial coverage are available, typically derived from...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1931
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1931)59<105:wacy>2.0.co;2