The main tendency of plowland in China in recent 20 years was analyzed on the base of anterior research and statistic data: the amount of plowland is decreasing;
在前人研究基础上，利用国家统计资料，分析了我国近20年来耕地变化总体趋势：耕地总量持续减少；
2
Supervision to the implementation of urban and rural planning has been strengthened, and the over-speed tendency of plowland occupation by urban and rural construction has been initially limited;