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Extreme climate events, migration for cultivation and policies: A case study in the early Qing Dynas
[期刊论文] 作者：FANG XiuQi,YE Yu,ZENG ZaoZao,
来源：中国科学D辑（英文版） 年份：2004
Based on the historical records of the annual increase in the workforce(men older than 16 years of age),the annual new taxed cropland in the Shengjing area (Nor...
Extreme climate events, migration for cultivation and policies: A case study in the early Qing Dynas
[期刊论文] 作者：FANG XiuQi,YE Yu,ZENG ZaoZao,
来源：黑龙江科技学院学报 年份：2007
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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