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自1963年起,人们就采用水土保持耕作法,当时实行水土保持耕作法的面积还不到种植面积的1%.以后10年,实行水
Since 1963, people have adopted soil and water conservation farming practices, and the area under the practice of soil and water conservation farming was less than 1% of the planted area at the time. In the next 10 years, water