共 8 条
[1]
Allen R.G., 1998, FAO Irrigation and Drainage Paper 56
[6]
Li G. Z., 2005, WORLD ECON, V28, P38
[7]
Zhang Z.J., 2007, J QUANTITATIVE TECHN, V14, P53
[8]
Zhou Y.F., 2005, STAT RES, V12, P67