Throughout the ages, the Yellow River Delta has absorbed immigrants from all directions with its rich land resources. The integration of immigrant culture and traditional Qi culture.

(1) The loe

Throughout the ages, the Yellow River Delta has absorbed immigrants from all directions with its rich land resources. The integration of immigrant culture and traditional Qi culture.

(1) The loess plateau has strengthened soil and water conservation;

Construction of water control project in the middle reaches of the Yellow River;

The discharge of the Yellow River into the sea is reduced, and the sediment transport capacity is weakened. (6 points)

(2) It is hot and rainy in summer, with rain and heat in the same period (2 points); Seasonal and interannual variation of precipitation is large (2 points);

The same period of rain and heat is beneficial to crop growth (2 points); Excessive precipitation variability is prone to droughts and floods (2 points).

(3) labor price, rent and land price increase (2 points); Energy shortage (2 points); Environmental pollution is serious. (2 points)

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