The abnormal change in global climate has led to the warming up of north China and the drying up of the Yellow River (DUYR), which has become a serious environmental problem. DUYR can be traced back to ancient times, ...The abnormal change in global climate has led to the warming up of north China and the drying up of the Yellow River (DUYR), which has become a serious environmental problem. DUYR can be traced back to ancient times, however. Due to abnormal changes in global climate, the entire basin of the Yellow River gets warm and dry. The reduced precipitation is concentrated in summer and occurs mostly in the form of rainstorms. The evaporation of water increases with the intensification of drought. Soil erosion raises the riverbed and increases the permeation and evaporation of river water, preventing surface runoffs in the middle and lower reaches from flowing into the mainstream of the Yellow River, thus causing its drying up. In a word, DUYR is a response to global climatic change and a natural result of the abnormal change in global climate. To address the issue, whole valley artificial rainfall, impoundment in the downstream low lying lands and other effective measures such as the initiative of water transfer from the south to the north can be taken.展开更多
The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refe...The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refers to the maximum bearing capacity of a river in meeting human demands for water on the precondition of sound recycling of the ecosystem. The concept encourages cautious human actions to save and conserve water resources.展开更多
文摘The abnormal change in global climate has led to the warming up of north China and the drying up of the Yellow River (DUYR), which has become a serious environmental problem. DUYR can be traced back to ancient times, however. Due to abnormal changes in global climate, the entire basin of the Yellow River gets warm and dry. The reduced precipitation is concentrated in summer and occurs mostly in the form of rainstorms. The evaporation of water increases with the intensification of drought. Soil erosion raises the riverbed and increases the permeation and evaporation of river water, preventing surface runoffs in the middle and lower reaches from flowing into the mainstream of the Yellow River, thus causing its drying up. In a word, DUYR is a response to global climatic change and a natural result of the abnormal change in global climate. To address the issue, whole valley artificial rainfall, impoundment in the downstream low lying lands and other effective measures such as the initiative of water transfer from the south to the north can be taken.
文摘The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refers to the maximum bearing capacity of a river in meeting human demands for water on the precondition of sound recycling of the ecosystem. The concept encourages cautious human actions to save and conserve water resources.
