... known that China must feed and take care of the needs of 1.3 billion inhabitants, or 22% of the world population, with only 7% of the world’s arable land and 6% of its freshwater resources ... level and 1/10 of the world average (Yang et al., 2005; Guan and Hubacek, 2008). An increasing demand for water, including agricultural, industrial, and municipal purposes uses across the country, ... 63L, and 51L in spring and fall, summer, and winter, respectively. Thus, the demand for water in summer was 1.2 times that of winter. The people of Beijing City did not object to the use of reclaimed...