To evaluate whether small farmers are willing to accept the policy of sustainable use of cultivated land such as green manure planting, we analyze the payment preference and the source of heterogeneity of small farmer’ environmental attributes of leguminous green manure. A choice experiment method is conducted to learn about small farmer’ preference toward green manure. The results suggest that small farmers with planting confidence are willing to pay for different environmental attributes of leguminous green manure. Among them, the willingness to pay (WTP) for the quality and fertility of cultivated land is the highest, and the WTP for air quality is the lowest. Small farmers who do not have confidence in planting are only willing to pay for attribute of natural disaster days. We identify key factors that might influence small farmer’s payment preference, including gender, age, education level, degree of part-time employment, and the trend perception of environmental change.

中文翻译：

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小农种植豆科绿肥的信心与支付意愿：环境属性视角

为了评估小农户是否愿意接受绿肥种植等耕地可持续利用政策，我们分析了豆科绿肥小农户环境属性的支付偏好和异质性来源。通过选择实验方法了解小农对绿肥的偏好。结果表明，有种植信心的小农愿意为豆科绿肥的不同环境属性买单。其中，耕地质量和肥力的支付意愿（WTP）最高，空气质量的支付意愿最低。对种植没有信心的小农，只愿意为天灾天属性买单。