5HUANG JIKUN, ROZELLE S. Environmental stress and grain yields in China [J ]. American Journal of Agricultural Economics, 1995,77(4) :853-864.
6ROZELLE S, VEECK G, HUANG JIKUN. The impact of environmental degradation on grain production in China: 1975 - 1990[J]. Economic Geography, 1997,73(1) :44-66.
5HUANG JIKUN, ROZELLE S. Environmental stress and grain yields in China [J ]. American Journal of Agricultural Economics, 1995,77(4) :853-864.
6ROZELLE S, VEECK G, HUANG JIKUN. The impact of environmental degradation on grain production in China: 1975 - 1990[J]. Economic Geography, 1997,73(1) :44-66.