Papers by Author: Xian Bo Yang

Abstract: With the development of the economy, human activities have more and more effects on natural environment. The large water conservancy and hydropower projects caused great multi-aspect influences on the environmental changes. The unreasonable activities of mankind in water resources exploitation have deteriorated the natural environment, intensifying the conflicts between human beings and the nature. Environment and natural disasters have brought forward rigorous challenge on the survival and development of the mankind. The concept of environmental variation is proposed in analyzing the processes of environmental change, and the reparation methods for the river environment variation have been stated as well. Styles of river environmental variation can be classified according to characteristics of the river and of human activities. The characteristics and the consequences of the environmental variation in the estuary of Yellow River are analyzed, so have the reparation methods. With the development of the economy, the human activities have more and more effects on natural environment. The large Water Conservancy and Hydropower Projects, such as the big-dam-building on the river, the water-transferring project, the water resources-exploiting project, and the sewage-discharge project, etc., have caused great multi-aspect influences on the environmental changes. The unreasonable activities of mankind in water resources exploitation have deteriorated the natural environment, intensifying the conflicts between the human beings and the nature. Environment and natural disasters have brought forward rigorous challenge on the survival and development of the mankind. Some abnormal environmental changes (Environment Variation) can be observed in rivers, influencing our life greatly, especially the environmental variation in the mouth of Yellow River.

Abstract: The urban rain-flood disaster occurs more ordinary and more serious recently. Summing up the characters of urban rain-floods, the mechanism of urban rain-flood disasters is analyzed. More ever, the main countermeasures to prevent urban rain-flood disasters are stated. Finally, the method to use urban rain-flood comprehensively based on nanotechnology is put forward.

Abstract: Analyzed the variation reasons and its influence factors of the Lower Yellow River (LYR), the characteristics of typical water environment abnormal variation caused by human activities and the natural influence factors are put forward. The concept of environmental abnormal variation has been proposed. Further more, the reparation methods for the environment abnormal variation in the Lower Yellow River are stated.