7Garnaut R, Ma G. Grain in China[M]. Canberra: Department of Foreign Affairs and Trade, 1992.
8Brown L R. Who will feed Chitin? Wake- up call for a small planet[M]. New York: World watch Institute, 1995.
9Smil V. Who will feed China[J]. China Quarterly, 1995,143:801-813.
10Prosterman R L,Hanstad T,Ping L.Can China feed itelf?Some surprising reasonable policy changes would enable the world's largest nation to produce more food for its 1.2 billion citizen[J].Scientific American,1996(6) : 70 - 76.
