VOA Chinese, Feb 28, 2011.
http://www.voanews.com/chinese/news/20110228-Should-China-End-One-Child-Policy-117060503.html
("美国北卡罗来纳大学的中国人口问题专家蔡泳(音译)对美联社表示，中国当下的人口增长主要是因为人们的寿命延长，而不是生育增长。他说，去年中国总人口增幅下降如此明显出乎政府决策人的预料")
Note: The report cites
Alexa Olesen, China says its population has passed 1.34 billion. Associated Press, Feb 28, 2011.
http://news.yahoo.com/s/ap/20110228/ap_on_re_as/as_china_population
("'China's population now is mainly growing because people are living longer, not because people are having lots of babies,' said Cai Yong, an assistant professor at the University of North Carolina, Chapel Hill, and an expert on China's population. Cai said the figure reported on the National Bureau of Statistics website wasn't surprising but fell on the low end of the government's expectations")