Can China find enough water to flourish?
Photography and video by Wu Hao/The Globe and Mail Water flows through the Taocha Canal headwork project in Henan province, a critical part of China's massive diversion project to send water from south to north. This is part of a Globe and Mail series in which Beijing correspondent Nathan VanderKlippe looks at Chinas present and future challenges before his return to Canada. The whims of atmospheric circulation have not been kind to northern China. While the rain pours onto the verdant stretches of Chinas south, its north, with half the countrys population, goes parched with less than a fifth of its freshwater resources. Water is generally considered scarce in a given location when its availability falls below 500 cubic metres per person in a year. Northern China averages 184 cubic metres for each of its 130 million people; Beijing alone is short an estimated total of 400 million cubic metres of water a year, or nearly two days of the Fraser Rivers average output. Other statistics are equally grim: In 1990, China counted 50,000 rivers. Today, just 22,000. So few would have accused then-premier Wen Jiabao of exaggeration when he warned, in 2005, that water shortages threatened the very survival of the Chinese nation.  Story continues below advertisement  It was a topic that helped catapult Ma Jun from journalist to pre-eminent environmentalist after the 1999 publication of his book Chinas Water Crisis, in which he warned that the country had grown by robbing nature of its resources.  Two decades later, Mr. Ma has a very different appraisal. China, through dint of brute force, enormous expenditure and a willingness to remake the countrys hydrological map, has quenched the thirst of the North.  CHINAS SOUTH-TO-NORTH WATER DIVERSION PROJECT Planned for completion by 2050, the project involves diverting waters from the Yangtze and Yellow Rivers from the wet south to the dry north via canals. CHINA Yellow River Planned canals Beijing Tianjin Weihai CHINA Jinan Han River Nanyang Yangtze River Yangzhou Yalong River Three Gorges Dam 0 500 KM MURAT YKSELIR / THE GLOBE AND MAIL, SOURCE: NATURAL EARTH DATA; CHINESE NATIONAL GEOGRAPHY CHINAS SOUTH-TO-NORTH WATER DIVERSION PROJECT Planned for completion by 2050, the project involves diverting waters from the Yangtze and Yellow Rivers from the wet south to the dry north via canals. RUSSIA MONGOLIA JAPAN CHINA INDIA Yellow River Planned canals Beijing Tianjin Weihai CHINA Jinan Han River Nanyang Yangtze River Yangzhou Yalong River Three Gorges Dam 0 500 KM MURAT YKSELIR / THE GLOBE AND MAIL, SOURCE: NATURAL EARTH DATA; CHINESE NATIONAL GEOGRAPHY CHINAS SOUTH-TO-NORTH WATER DIVERSION PROJECT Planned for completion by 2050, the project involves diverting waters from the Yangtze and Yellow Rivers from the wet south to the dry north via canals. Planned canals Beijing Yellow River Tianjin CHINA Weihai Central route Jinan CHINA Eastern routes East China Sea Zhengzhou Western routes Han River Nanyang Yangzhou Yangtze River Yalong River Shanghai Three Gorges Dam 0 500 KM MURAT YKSELIR / THE GLOBE AND MAIL, SOURCE: NATURAL EARTH DATA; CHINESE NATIONAL GEOGRAPHY  All that it required was bringing the waters of the Yangtze river system more than 1,000 kilometres from their natural course, a re-engineering of earths natural systems with few parallels in human history. In the process, Chinas leaders have also ensured the quality of water flowing from taps in Beijing and other northern cities is significantly better.  For nearly 40 years, Beijings water table steadily retreated, sinking some 15 metres and bringing fears of settling earth and frightening shortages. Now, however, the water table has begun to recover, surging back more than a metre in the past two years alone. The water crisis used to loom large over all of these northern cities  about 40 of them, with at least 10 under threat of a real crisis, Mr. Ma said. But now its different. And in the short to mid-term that has been basically alleviated.  It is a major achievement for China, and an object lesson in what its Communist Party leaders have been able to achieve by focusing the power of the state on immense problems that once seemed nearly impossible to solve. Story continues below advertisement  Open this photo in gallery South vs. north: At top, a local man swims near the Danjiangkou Dam, and at bottom, Beijing residents cross the bridge on the Liangma River. The Chinese capital's water table was depleted by about 15 metres over 40 years, but has recovered by more than a metre in the past two years, thanks to the water from Hubei and elsewhere. Chinas response to its water crisis is less visually evident than its war on smog, which can also claim impressive results. In Beijing, a city where industrial air pollution regularly dimmed the sun, the average annual air-quality index has improved by 39 per cent since 2014. In 2020, the capitals air was deemed excellent for nearly one in three days. It is no longer hard to imagine Chinese leaders meeting the goal they recently set for themselves to basically eliminate heavily polluted weather nationwide by 2035. Perhaps, too, progress on smog presages success in eradicating other pollutants, such as carbon  an optimistic omen for Beijings other recent pledge, to achieve carbon neutrality by 2060. The country, after all, has shown itself able to redirect the waters of its mightiest river system. For Beijings water woes, the solution begins some 1,267 kilometres away, at the Danjiangkou Reservoir on the Han River, the longest of the Yangtze tributaries. It is also the starting point for the central route of the South-to-North Water Diversion Project, the bland name for a project of breathtaking scale. The initiative was famously described by Mao Zedong in 1952, when he said: The south has plenty of water and the north lacks it, so if possible why not borrow some?  Open this photo in gallery A map near the Danjiangkou reservoir shows the northward route the diverted water must take. The canals that make up the project divert the waters of the Yangtze and its tributaries. Today, just more than seven out of every 10 cups of water poured in Beijing are delivered by this achievement of infrastructure. The scale of the project in many ways eclipses even the Three Gorges Dam, which transformed 660 kilometres of the Yangtze River into a reservoir. Three water-diversion routes have been planned, two already built: the central and eastern lines. At $57-billion in construction costs, their budget has already exceeded the Three Gorges by 50 per cent. Some 400,000 people were relocated to make way for the new canals. Yet, as a test of Chinas ability to solve a problem of immense scale, it has been a remarkable success. We can see from the south-to-north water transfer that China possesses major advantages when it comes to large-scale projects, said Xia Qing, a Chinese water expert. Before the projects completion, critics raised doubts about the quality of water it would deliver, since it passed through areas long plagued by toxic industrial runoff. But officials along the route shut down offenders, and the water quality sluiced into Beijing is measurably better than what the city previously enjoyed. For the city of Beijing, the water problem can be considered resolved, said Mr. Xia, who has been a central figure in Chinas water plans. Now retired, he previously worked as an engineer at the Chinese Research Academy of Environmental Sciences and helped to direct construction of the South-to-North Water Diversion Project, personally reporting on progress to the countrys top leadership, including Mr. Wen and Li Peng, another former Chinese premier. Story continues below advertisement  Open this photo in gallery Xia Qing, shown at his Beijing home, is a retired engineer who helped direct the construction of the south-to-north water transfer system. Slaking the norths thirst has also trained new national attention on other problems. The Yangtze Rivers mounting importance as a source of national drinking water has elevated efforts to protect the countrys best-known waterway. Last year, China enacted a 10-year fishing ban on some 332 Yangtze River conservation sites. Earlier this year, Beijing approved a Yangtze River Protection Law that prohibits the transportation of many toxic and dangerous chemicals on the river. More difficult will be undoing a toxic past in which water was made subservient to industrial growth. What matters most to Chinas future is not merely whether it has enough water, but whether it has sufficient usable water, an international group of scholars, including from the Chinese Academy of Sciences and the University of Oxford, warned in a major research paper published last year in Nature. Together, problems with quality and quantity mean more than half of the population  between 700 million and 1.36 billion  are affected by concerns over sufficient availability of good water, they calculated. For China, they concluded, canal-building is not enough. Conservation and environmental restoration are also needed. Because, for now, water scarcity remains one of the most significant threats that challenge sustainable development.  And while China has poured money into engineering solutions, it has shown less success in conservation. Governments across the country have struggled to use water more efficiently in agriculture, which uses two-thirds of the countrys supply  some pumped through irrigation systems that squander vast volumes. On average, water-transportation systems in China leak 20 per cent of what they carry. Better technology is available, but expensive, and it has proven difficult to persuade governments to spend in ways that might hurt economic performance. Changes in agricultural practice, too, require shifting behaviours across a population of farmers that China officially tallies at 570 million, or 40 per cent of the population. You must give people something as motivation for them to respond to plans for saving water, Mr. Xia said. Story continues below advertisement  Open this photo in gallery North vs. south, continued: At top, A local man looks for fish in the Hanjiang River in Danjiangkou city, and at bottom the Su Zhuang Gate Bridge spans the Chao Bai River in Beijing. Besides the water transfer program, Mr. Xia has also worked to resolve another difficult problem: reviving the Haihe River system, whose tributaries pass by Beijing, but routinely run dry as they travel to Bohai Bay. The volume of water flowing through the Haihe system has fallen by more than a third over the past two decades. We hope to get the water volume back to the two-billion level within 10 to 20 years, Mr. Xia said. But all of Chinas recent success in hydrological engineering has, for now, created such abundance that it is making other problems more difficult to solve. Reviving the Haihe basin, for example, will require a massive conservation project  and rather than conserve, cities such as Beijing have responded to their new canal-borne water riches by using more. Across northern China, cities are building man-made lakes and landscaping parks with fountains. In Beijing, an average person now uses more water than in some European cities blessed with far more abundant supplies. I do think that is wrong, said Mr. Ma. In Beijing, we all open the tap and it looks like the water just flows so naturally here. But actually, very few people know about the extreme high cost.