水旱轮作模式和灌溉方式对西南地区水稻灌溉用水效率的影响
于伟咏, 漆雁斌, 韦锋, 邓鑫

The impact of FDD rotation mode and irrigation methods on rice irrigation water efficiency in Southwestern China
Weiyong YU, Yanbin QI, Feng WEI, Xin DENG
表7 灌溉用水效率影响因素的实证回归结果
Table 7 The empirical regression results of factors affecting the efficiency of irrigation water
指标 模型Ⅰ 模型Ⅱ 模型Ⅲ 模型Ⅳ 模型Ⅴ
OLS估计 断尾回归估计 Tobit估计 Tobit估计 IV Tobit估计
FDD_rotation -0.011 8***(-2.74) -0.054 0* (-1.75) -0.012 0***(-2.75) -0.012 5***(-2.84) -0.013 5***(-2.93)
irrigation_ model 0.029 8*** (2.99) -0.236 9* (-1.81) 0.030 0*** (3.59) 0.031 0*** (3.64) 0.051 4*** (2.81)
species_selection -0.002 8 (-0.12) -0.351 8* (-1.73) -0.002 4 (-0.11) 0.001 3 (0.06) -0.003 3 (-0.14)
commer_rate -0.010 1 (-1.02) -0.212 0 (-1.31) -0.010 2 (-1.51) -0.007 7 (-1.16) -0.009 7 (-0.92)
age -0.000 3 (-0.55) -0.019 3***(-2.94) -0.000 3 (-0.67) -0.000 5 (-1.01) -0.000 6 (-0.99)
education -0.004 9 (-0.67) -0.108 1* (-1.94) -0.005 0 (0.66) -0.004 4 (-0.58) -0.008 1 (-1.00)
village_cadres 0.144 5 (0.66) -0.484 3** (-2.39) 0.014 2 (0.70) 0.018 0 (0.88) 0.017 7 (0.77)
cultivated_way -0.009 4 (-1.44) -0.146 8* (-1.92) -0.009 7 (-1.33) -0.011 3 (-1.54) -0.000 8 (-0.07)
per_cost 0.000 0 (1.45) -0.000 1* (-1.66) 0.000 0 (0.94) 0.000 0 (1.10) 0.000 2* (1.61)
regional_feature -0.023 1** (-2.09) -0.237 4** (-2.37) -0.023 5** (-2.25)
labor -0.006 4 (-1.44) -0.004 2 (-0.13) -0.006 5* (-1.74)
ln(income 0.012 7* (1.89) 0.066 7 (0.96) 0.012 9** (2.07)
Subsidies 0.000 0 (0.98) 0.000 6** (2.25) 0.000 0 (0.94)
C 0.053 2 (0.48) 4.025 8*** (2.94) 0.053 8 (0.59) 0.132 1** (2.31) 0.089 5 (1.02)
R2 0.045 4 0.079 5 0.068 4 0.112 8 0.120 2