【作者(必填)】Fengbo, Chen; Pandey, Sushil; Shijun
【文题(必填)】
Changing rice cropping patterns: evidence from the Yangtze River Valley, China

【年份(必填)】2013
【全文链接或数据库名称(选填)】http://chinesesites.library.ingentaconnect.com/content/ip/ooa/2013/00000042/00000002/art00006