While the development of China's surface water resources has a long history and has played an important role in its growth as a state, the development of most groundwater resources has been compressed into less than 50 years. In this section, we briefly examine the way in which China has developed its groundwater resources by first describing the trends over the last 50 years in the installation of tube wells and pumps, focusing on the path of this development over time and across space. Because we have more detailed data from the last decade, much of the discussion will focus on the recent period. The second part of this section briefly introduces the technology that is being used.
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