文章基本信息

标题：THE EFFECTS OF CLIMATIC VARIABLES AND CROP AREA ON MAIZE YIELD AND VARIABILITY IN GHANA
本地全文：下载
作者：Henry De-Graft Acquah ; Clement Kweku Kyei
期刊名称：Russian Journal of Agricultural and Socio-Economic Sciences
印刷版ISSN：2226-1184
电子版ISSN：2226-1184
出版年度：2012
卷号：10
期号：10
页码：10-13
出版社：Russian Journal of Agricultural and Socio-Economic Sciences
摘要：Climate change tends to have negative effects on crop yield through its influence on crop production. Understanding the relationship between climatic variables and crop area on the mean and variance of crop yield will facilitate development of appropriate policies to cope with climate change. This paper examines the effects of climatic variables and crop area on the mean and variance of maize yield in Ghana. The Just and Pope stochastic production function using the Cobb-Douglas functional form was employed. The results show that average maize yield is positively related to crop area and negatively related to rainfall and temperature. Furthermore, increase in crop area and temperature will enlarge maize yield variability while rainfall increase will decrease the variability in maize yield.
关键词：Climatic variables; Mean yield; Yield variability; Production function; Fixed effect model; Panel data.