1: Shanxi Province is located in the inland plateau and mountainous area, with a monsoon continental climate. In winter, the cold wave must pass through the south, and in summer, the southeast monsoon carries warm and humid air to the north. When the Pacific subtropical high is weak or the circulation situation is abnormal, there will be large and small droughts.

2. Shanxi is located in North China before the spring rainy season, with little precipitation and small river runoff; In spring, the temperature rises rapidly and the evaporation is strong; Strong wind accelerates water evaporation; Winter wheat turns green, and the water demand is large; Water resources are seriously wasted.

3. The east is blocked by Taihang Mountain, and the climate is humid and difficult to reach.

4. The terrain is located in the loess plateau, with valley terrain and few rivers flowing through it.

5. Rough terrain, limited by regional economic strength, slow development of water conservancy facilities.