The above article has been withdrawn by agreement between the authors, the journal Editorial office, and Wiley Publishing Asia Pty Ltd. The withdrawal has been agreed due to the usage of restricted data from the Ministry of Agriculture of China.
The article was placed online on 6 November 2012 as an Accepted Article (articles accepted for publication, but not formally published). The withdrawal statement was published on 10 June 2013. The withdrawal statement was then allocated to an issue on 30 July 2015.
[This statement has been amended since first posted online on 10 June 2013 to reflect the article's publication history.]