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1·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;

强化城乡规划实施的监督，城乡建设占用耕地总量过快增长的势头得到初步遏制；