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Table 8 Results of the Heckman probit selection model for the wet lowland

From: Farmers’ perception of climate change and adaptation strategies in the Dabus watershed, North-West Ethiopia

Explanatory variablesOutcome modelSelection model
RegressionMarginal effectRegressionMarginal effect
CoefficientsP valuesCoefficientsP valuesCoefficientsP valuesCoefficientsP values
Education of HH head0.082**0.0220.016**0.0120.033***0.0030.013***0.002
Household size0.044**0.0120.014 **0.043    
HH head sex0.580**0.0100.177**0.012    
Farming experience0.0720.1330.0230.131    
HH head age0.138**0.0120.012**0.0310.015***0.0000.008***0.000
Crop income0.0010.1420.0310.531    
Livestock income0.829***0.0000.145***0.000    
Non-farm income0.126**0.0230.021**0.044    
Extension advice1.024***0.0000.303***0.000    
Cultivated land size− 0.565**0.034− 0.009**0.024    
Climate information0.255**0.0210.074**0.0230.0340.1310.0310.113
Temperature    0.168***0.0000.044***0.000
Precipitation    − 0.013***0.000− 0.03***0.000
Plots with steep slope2.62*0.0540.263*0.041    
Plots with mixed slope2.62*0.0540.263*0.043    
Semi-fertile plots0.0560.1130.0120.110    
Non-fertile plots1.21**0.0220.066**0.011    
Shared out land− 0.0250.310− 0.0120.310    
Farm-home distance− 0.122**0.011− 0.033**0.011    
Number of parcels− 0.013**0.021− 0.0110.012    
Number of crop failures    1.418***0.0000.278***0.000
Frequency of drought in 20 years    0.255**0.0210.074**0.023
Frequency of drought in 10 years    0.83***0.0010.2120.000
Duration of food shortage    0.011**0.0280.003**0.035
Past knowledge of adaptation0.476***0.0020.132***0.001    
Constant− 5.945***0.003  − 1.245***0.000  
Total observations371       
Censored77       
Uncensored294       
Wald chi-square (zero slopes)86.84 (P < 0·001)       
Wald chi square (independent equations)10.29 (P < 0·001)       
  1. ***, ** and * indicate significance levels at 1%, 5% and 10%, respectively