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Table 9 Results of the Heckman probit selection model for the dry 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 head0.505***0.0000.144***0.0000.272**0.0140.070*0.049
Household size0.056***0.0000.023***0.000    
HH head sex0.016***0.0000.002***0.000    
Farming experience0.580**0.0100.165**0.0120.061**0.0170.019**0.017
HH head age0.058*0.0540.028*0.043    
Crop income1.022***0.0030.3190.003    
Livestock income− 0.140**0.011− 0.042*0.013    
Non-farm income− 0.565**0.034− 0.019*0.042    
Extension advice0.0150.1430.0450.141    
Cultivated land size− 2.70**0.0370.044*0.041    
Climate information0·203**0·0110·057**0·0230.155***0.0010.131***0.002
Temperature    0.0770.4160.0170.103
Precipitation    − 1.121**0.031− 0.123**0.022
Plots with steep slope0.543*0.0500.021*0.056    
Plots with mixed slope0.9560.4190.0260.337    
Semi-fertile plots0.1390.1240.0030.124    
Non-fertile plots− 1.500.204− 0.1270.342    
Shared out land− 0.54*0.071− 0.149*0.056    
Farm-home distance− 2.626*0.046− 0.263*0.051    
Number of parcels− 0.0530.310− 0.0160.310    
Number of crop failures    4.414**0.0170.278**0.021
Frequency of drought in 20 years    0.238**0.0140.227**0.034
Frequency of drought in 10 years    0.323**0.0320.044**0.013
Duration of food shortage    2.634***0.0000.212***0.001
Past knowledge of adaptation2.662**0.0000.289***0.000    
Constant− 5.032***0.001  − 1.133***0.000  
Total observations363       
Censored75       
Uncensored288       
Wald chi-square (zero slopes)88.43, (P < 0.001)       
Wald chi-square (independent equations)10.86 (P < 0.001)       
  1. ***, **, *Significance levels at 1, 5, and 10%, respectively