Soil Protection:GROUND DOWN  

作　　者：Zhang xinyu Wang Yan 

机构地区：[1]不详

出　　处：《China Weekly》2022年第8期16-21,共6页中国新闻周刊（英文版）

摘　　要：Farmer Yang Haijun said he had been noticing significant changes to the once fertile black soil on his family land for more than a decade.Yang,in his late 40s,lives in Shengli,Hailun City in Heilongjiang Province,part of northeast China which is known for high-yielding arable land that makes it one of the country's most important grain producing regions.

关 键 词：NORTHEAST ARABLE YIELDING 

分 类 号：F42[经济管理—产业经济]