Yang, Long-fei; Zhao, Qiao-gui; Yang, Zi-sheng - In: Asian Agricultural Research 2 (2010) 03
According to the cultivated area and grain yield during 1996- 2008 and adopting the prediction method of farmland demand based on food security, five indexes, including the cultivated area, grain sown area, yearly food yield per unit area, total population and per capita grain yield, are...