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宁夏南部黄土丘陵区属半干旱水土流失严重的农牧交错地区,在水分不足的条件下该区农田生产潜力如何?粮食能否达到稳定自给?长期以来是一个有争议的问题。作者在三个有代表性的气候年份(1981—1983年),六种地区类型,两种肥力条件下
The loess hilly region in the south of Ningxia is a semi-arid agricultural and pastoral area with serious soil erosion. Under the condition of insufficient water resources, what is the potential of farmland production in this area? Can food achieve stable self-sufficiency? It has long been a controversial issue. In three representative climate years (1981-1983), six regional types, under two fertility conditions