机修梯田与矿区废弃地的再利用——21世纪黄土高原粮食“超常速”增长的两大关键措施

白中科;洪坚平;赵景逵

Re-utilization of Mechanically-Built Terraced Fields and Wastelands in the Mining Area in the Loess Plateau in the 21st Century

. 1999, (9904): 23 -25 .