A high school geography problem!

1. Xiaxi Guhai area is located in the hilly and gully region of the Loess Plateau, with an annual average temperature of 3~8℃, an extreme maximum temperature of 39.3℃ and an extreme minimum temperature of -30℃. The frost-free period is 90~ 100 days, and the annual rainfall is 200~700 mm, mostly in June ~ September, with hail, and the annual evaporation is 10. Due to thousands of years of running water cutting and blind farming, soil erosion is serious. Except for a few river valleys and terraces, living conditions in most places are extremely poor, and other natural disasters are frequent. The State Council has been identified as one of the three major poverty alleviation areas in the west.

Second, the ecological environment is fragile, soil erosion is serious, and life is extremely poor. Sustainable development and survival have become the biggest problems in the local area, so we can only choose immigration.