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China: Climate Change V.S. Water Resource by City Tech Blogger Xiao Lin

In recent years, climate change issues have received much attention and global warming has become one of the most popular climate issues. Affected by special geographical location, population, water resources endowment conditions, and global climate change and human activities, China’s current water and drought disasters, water shortages, water ecological damage, water and environmental pollution are serious problems. So, What impact will global warming have on our lives?

At the 8th International Conference on “Water Flow Situation Research Based on Global Hydrological Experiments and Observations”, the dean of the Institute of Science and academician of the Chinese Academy of Engineering said “Climate change leads to the reduction of river runoff and surface water resources in northern China. On the other hand, the increase in temperature makes the water demand for agriculture, industry, life, and ecological water increase. The contradiction of water shortage in northern China will be further highlighted”. He also pointed out that the river runoff in China showed a decreasing trend, and the Hai he River Basin, the Liao he River Basin, and the lower reaches of the Yellow River decreased significantly. At the same time as the runoff reduction, the amount of surface water resources in the Huang-Huai-Hai Basin is also significantly reduced. In the future, the number of water resources in the country may be further reduced, and overall it may be less than 5%. Based on my own experience, I realized that the water level of the small river next to house has deceased about 20 cm in 2006-2011. My hometown is located in the south of China, which experiences a great amount of rainfall.

At the same time, the demand for water is increasing. He believes that in the context of global warming, surface temperatures have increased to varying areas across China and rising temperatures have led to the increase in demand for water. In nearly 60 years, the surface temperature of China has risen by 1.38 degree Celsius. According to the analysis of the sensitivity of crop net irrigation water demand to climate change, if the temperature rises by 1 °C, the agricultural net irrigation water demand will increase by about 1%-3%. Agricultural irrigation water is needed 1%-3% more than the 60 years ago, but the water resource is experiencing shortage. It will directly lead to food shortage issues because most food comes from the north China agricultural.

As a tech school student, I think It is necessary to combine information technology such as the Internet of Things and big data in the hydrological business to improve the knowledge dissemination and education of hydrology and water resources; and promote the wide application of new technologies and equipment such as drones and satellite remote sensing.


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