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The most powerful salt tide since last autumn hit the Pearl River in Guangdong province yesterday, a senior local astronomer said.
Li Jianji, director of the Guangdong astronomical society, said that despite its force, the tide should recede on Saturday and, thanks to the preemptive measures taken, the water supply in the Pearl River Delta (PRD) region should not be affected.
Salt tides are caused by astronomical events, Li said.
On Saturday, the moon will be at its closest point to the Earth, while on Sunday, the sun, Earth and moon will be in alignment, he said.
However, thanks to the plentiful rainfall last summer and autumn, the impact of the tide is not expected to be serious, he said.
Salt tides are a perennial problem for Guangdong, generally striking during the comparatively dry months of January and February.
The province is now in its low-water season, following a marked lack of rainfall at the end of last year.
Last month, rainfall in the provincial capital Guangzhou was just 60 percent of the average for the time of year.
The provincial climate center has forecast rainfall to be down 10 to 20 percent on seasonal averages in the first quarter of the year, increasing the risk of salt tides.
Following a series of heavy tides between 2004 and 2006, authorities introduced several measures to minimize their impact, including the development of an integrated water supply network in the PRD.
A key element of the plan is the construction of the Zhuyin Reservoir in Zhuhai, work on which began last month.
（英語(yǔ)點(diǎn)津 Helen 編輯）
Brendan joined The China Daily in 2007 as a language polisher in the Language Tips Department, where he writes a regular column for Chinese English Language learners, reads audio news for listeners and anchors the weekly video news in addition to assisting with on location stories. Elsewhere he writes Op’Ed pieces with a China focus that feature in the Daily’s Website opinion section.
He received his B.A. and Post Grad Dip from Curtin University in 1997 and his Masters in Community Development and Management from Charles Darwin University in 2003. He has taught in Japan, England, Australia and most recently China. His articles have featured in the Bangkok Post, The Taipei Times, The Asia News Network and in-flight magazines.
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