Discussion on the Impact Factor of Agricultural Land in Taiwan–Case Study of Yunlin, Chiayi, and Tainan

Food crisis has become a worldwide problem, and global food stock has decreased years by years. Although food stock became a serious issue, the amount of land use change still threated the global food self-sufficiency. This article aimed at the discussion on the impact factor of agricultural land. Different factors caused different effects on agricultural land, but they often lack of clear quantitative indicators. Moreover, the classification of these factors was too broad to be accurately reflected its impact. This article analyzed the degree of changes in land use through mapping method of GIS and explored the type and extent of the factors related to agricultural land use change.