| Literature DB >> 35409953 |
Hongpeng Guo1, Yujie Xia1, Chulin Pan1, Qingyong Lei1, Hong Pan1.
Abstract
Due to the natural production properties, agriculture has been adversely affected by global warming. As an important link between individual household farmers and modern agriculture, it is crucial to study the influence of agricultural productive services on farmers' climate-responsive behaviors to promote sustainable development and improve agricultural production. In this paper, a questionnaire survey has been conducted among 374 maize farmers by using the combination of typical sampling and random sampling in Jilin Province of China. Moreover, the Poisson regression and the multi-variate Probit model have been used to analyze the effects of agricultural productive services on the choices of climate-responsive behaviors as well as the intensity of the behaviors. The results have shown that the switch to suitable varieties according to the frost-free period have been mostly common among maize growers in Jilin province. Agricultural productive services have a significant effect on the adoption intensity of climate- responsive behaviors, at the 1% level. Based on this conclusion, this paper proposes policy recommendations for establishing a sound agricultural social service system and strengthening the support for agricultural productive services. It has certain reference significance for avoiding climate risk and reducing agricultural pollution in regions with similar production characteristics worldwide.Entities:
Keywords: Poisson regression model; agricultural productive services; multi-variate Probit model
Mesh:
Year: 2022 PMID: 35409953 PMCID: PMC8999030 DOI: 10.3390/ijerph19074274
Source DB: PubMed Journal: Int J Environ Res Public Health ISSN: 1660-4601 Impact factor: 3.390
Figure 1Farmers’ behaviors.
Definition and Descriptive Statistics of Variables.
| Variables | Value | Mean Value | Standard Deviation | Min | Max |
|---|---|---|---|---|---|
| Gender | 1 = Male, 2 = Female | 1.353 | 0.479 | 1 | 2 |
| Age | Age of farmers | 46.385 | 7.5 | 28 | 68 |
| Education level | 1 = Primary school education and below, 2 = Junior high school education, 3 = High school education, 4 = University degree | 2.414 | 0.766 | 1 | 4 |
| Household size | Population of peasant households (people) | 3.882 | 1.230 | 1 | 10 |
| Planting area | Operating land area of peasant household (ha) | 16.624 | 35.398 | 0.053 | 500 |
| Social capital | Neighbors help each other during the busy period, 1 = Yes, 0 = No | 0.882 | 0.323 | 0 | 1 |
| Government subsidies | Receive agricultural subsidies, 1 = Yes, 0 = No | 0.802 | 0.399 | 0 | 1 |
| Loans | Take loans, 1 = Yes, 0 = No | 0.537 | 0.499 | 0 | 1 |
| Agricultural productive services | Number of agricultural productive services received, 1–5 | 3.856 | 1.149 | 0 | 5 |
Multicollinearity.
| Variables | VIF |
|---|---|
| Gender | 1.04 |
| Age | 1.18 |
| Education level | 1.21 |
| Household size | 1.08 |
| Planting area | 1.17 |
| Social capital | 1.07 |
| Government subsidies | 1.08 |
| Loans | 1.14 |
| Agricultural productive services | 1.19 |
| Mean VIF | 1.13 |
Estimation of the intensity of low-carbon production practice and climate adaptation practice of farmers.
| Low-Carbon Production Practice | Climate Adaptation Practice | |||||
|---|---|---|---|---|---|---|
| Poisson Regression | OLS | Incidence-Rate Ratios | Poisson Regression | OLS | Incidence-Rate Ratios | |
| Gender | −0.293 *** | −0.499 *** | 0.746 | −0.175 *** | −0.417 *** | 0.840 |
| (−4.51) | (−4.75) | (−3.21) | (−3.18) | |||
| Age | 0.046 | 0.093 | 1.047 | 0.183 | 0.483 | 1.201 |
| (−0.29) | (−0.33) | (−1.13) | (−1.36) | |||
| Education level | 0.115 *** | 0.216 *** | 1.122 | 0.043 | 0.108 * | 1.044 |
| (−3.19) | (−3.05) | (−1.29) | (−1.23) | |||
| Household size | 0.003 | 0.008 | 1.003 | −0.023 | −0.046 | 0.977 |
| (−0.54) | (−0.39) | (−1.3) | (−1.70) | |||
| Planting area | 0.079 | 0.123 | 1.082 | 0.143 | 0.309 | 1.154 |
| (−0.90) | (−0.78) | (−1.46) | (−1.57) | |||
| Social capital | 0.000 | 0.000 | 1.000 | −0.001 | −0.002 | 0.999 |
| (−0.24) | (−0.15) | (−0.92) | (−0.87) | |||
| Government subsidies | 0.061 | 0.116 | 1.063 | 0.174 ** | 0.403 ** | 1.190 |
| (−0.80) | (−0.90) | (−2.43) | (−2.52) | |||
| Loans | −0.049 | −0.096 | 0.953 | −0.022 | −0.061 | 0.978 |
| (−0.84) | (−0.91) | (−0.42) | (−0.46) | |||
| Agricultural productive services | 0.0748 *** | 0.129 *** | 1.078 | 0.0896 *** | 0.210 *** | 1.094 |
| (−2.66) | (−2.75) | (−3.32) | (−3.60) | |||
| _cons | 0.280 | 1.247 *** | 1.323 | 0.440 ** | 1.382 *** | 1.552 |
| (−1.38) | (−3.27) | (−2.07) | (−2.91) | |||
| N | 374 | 374 | 374 | 374 | ||
| P | 0.0000 | 0.0000 | 0.0000 | 0.0000 | ||
OLS: Ordinary Least Square; Cons: constant terms; z statistics in parentheses; N sample size; * p < 0.1, ** p < 0.05, *** p < 0.01; Indicate that the coefficients of the explanatory variables are significant at the 10%, 5%, and 1% levels, respectively.
Regression results of different generations of farmers.
|
|
|
|
| |||
| Agricultural productive services | 1.1258 *** | 1.0713 *** | 0.9027 | |||
| Control variable | Controlled | Controlled | Controlled | |||
| Log likelihood | −128.90164 | −371.99202 | −41.994357 | |||
| N | 93 | 251 | 30 | |||
| P | 0.0000 | 0.0000 | 0.0230 | |||
| Pseudo R2 | 0.0645 | 0.0223 | 0.0245 | |||
|
|
|
|
| |||
| Agricultural productive services | 1.1060 *** | 2.93 | 1.0933 *** | 2.81 | 0.0605 | 0.1370 |
| Control variable | Controlled | Controlled | Controlled | |||
| Log likelihood | −156.0848 | −410.3360 | −48.7649 | |||
| N | 93 | 251 | 30 | |||
| P | 0.0000 | 0.0032 | 0.0607 | |||
| Pseudo R2 | 0.0545 | 0.0223 | 0.0729 | |||
z statistics in parentheses. N sample size. *** p < 0.01. Indicate that the coefficients of the explanatory variables are significant at the 10%, 5%, and 1% levels, respectively.
Regression results of different gender.
|
|
|
|
| Agricultural productive services | 1.0570 | 1.0828 *** |
| Control variable | Controlled | Controlled |
| Log likelihood | −181.3164 | −362.0998 |
| N | 132 | 242 |
| P | 0.0053 | 0.0095 |
| Pseudo R2 | 0.0341 | 0.0129 |
|
|
|
|
| Agricultural productive services | 1.0829 | 1.0826 *** |
| Control variable | Controlled | Controlled |
| Log likelihood | −208.8982 | −409.3071 |
| N | 132 | 242 |
| P | 0.0000 | 0.0000 |
| Pseudo R2 | 0.0473 | 0.0223 |
z statistics in parentheses. N sample size. *** p < 0.01. Indicate that the coefficients of the explanatory variables are significant at the 10%, 5%, and 1% levels, respectively.
Regression results of different scale.
|
|
|
| ||
| Agricultural productive services | 1.0368 | 0.95 | 1.1019 ** | 2.41 |
| Control variable | Controlled | Controlled | ||
| Log likelihood | −293.7519 | −252.1136 | ||
| N | 199 | 242 | ||
| P | 0.0002 | 0.0004 | ||
| Pseudo R2 | 0.0226 | 0.0314 | ||
|
|
|
| ||
| Agricultural productive services | 1.0658 * | 1.0861 ** | ||
| Control variable | Controlled | Controlled | ||
| Log likelihood | −326.3521 | −291.1609 | ||
| N | 132 | 242 | ||
| P | 0.0066 | 0.0003 | ||
| Pseudo R2 | 0.0271 | 0.0403 | ||
z statistics in parentheses. N sample size. * p < 0.1, ** p < 0.05. Indicate that the coefficients of the explanatory variables are significant at the 10%, 5%, and 1% levels, respectively.
Estimation of farmers’ choices of climate-responsive behaviors.
| Planting-Breeding Combination Methods | Conservation Tillage Methods | Use of Organic Fertilizers | The Change of Suitable Varieties according to the Frost-Free Periods | Adjustment of Pesticides and Fertilizers Usage | Adjustment of the Time of Sowing and Harvesting | Filling the Gaps with Seedlings | |
|---|---|---|---|---|---|---|---|
| Gender | −0.540 *** | −0.560 *** | −0.294 ** | −0.480 *** | −0.360 ** | −0.204 | −0.257 * |
| (−3.81) | (−3.87) | (−2.08) | (−3.24) | (−2.5) | (−1.44) | (−1.8) | |
| Age | 0.000 | −0.003 | 0.517 | 0.884 ** | 0.737 * | 0.737 * | −0.233 |
| (0.00) | (−0.01) | (1.29) | (2.08) | (1.83) | (1.86) | (−0.58) | |
| Education level | 0.178 * | 0.159 | 0.312 *** | 0.048 | 0.095 | 0.412 *** | −0.099 |
| (1.81) | (1.52) | (3.05) | (0.45) | (0.92) | (3.84) | (−1.02) | |
| Household size | 0.063 | −0.021 | 0.086 | 0.079 | 0.016 | −0.018 | −0.011 |
| (1.07) | (−0.35) | (1.44) | (1.21) | (0.27) | (−0.3) | (−0.19) | |
| Planting area | −0.165 | 0.172 | 0.345 * | 0.240 | 0.311 | 0.346 * | −0.024 |
| (−0.77) | (0.81) | (1.68) | (1.07) | (1.48) | (1.65) | (−0.11) | |
| Social capital | 0.003 | −0.001 | −0.002 | −0.001 | −0.001 | 0.001 | −0.004 |
| (1.06) | (−0.32) | (−0.78) | (−0.39) | (−0.67 | (0.37 | (−1.57 | |
| Government subsidies | 0.275 | 0.003 | 0.022 | 0.228 | 0.332* | 0.162 | 0.406 ** |
| (1.56) | (0.02) | (0.13) | (1.26) | (1.9) | (0.92) | (2.23) | |
| Loans | −0.046 | −0.279 * | 0.008 | 0.037 | −0.192 | −0.062 | −0.024 |
| (−0.32) | (−1.85) | (0.06) | (0.24) | (−1.31) | (−0.43) | (−0.17) | |
| Agricultural productive services | 0.090 | 0.210 *** | 0.082 | −0.027 | 0.237 *** | 0.207 *** | 0.186 *** |
| (1.42) | (3.21) | (1.3) | (−0.38) | (3.65) | (3.23) | (2.75) | |
| _cons | −0.362 | 0.162 | −1.184 ** | 0.257 | −0.924 | −1.702 *** | −0.605 |
| (−0.66) | (0.28) | (−2.08) | (0.43) | (−1.61) | (−2.97) | (−1.05) | |
| N | 374 | ||||||
| P | 0.0000 | ||||||
| ρCorrelation coefficient matrix: ρ21 = 0.2786 *** ρ31 = 0.2479 *** ρ41 = 0.2907 *** ρ51 = 0.2926 *** ρ61 = 0.3155 *** ρ71 = 0.3043 *** ρ32 = 0.1273 ** ρ42 = 0.1758 *** ρ52 = 0.3688 *** ρ62 = 0.3387 *** ρ72 = 0.1325 ** ρ43 = 0.1788 *** ρ53 = 0.2539 *** ρ63 = 0.2100 *** ρ73 = 0.3059 *** ρ54 = 0.2581 *** ρ64 = 0.2774 *** ρ74 = 0.2035 *** ρ65 = 0.4562 *** ρ75 = 0.1773 *** ρ76 = 0.2826 *** | |||||||
| Wald χ2 | 140.13 | ||||||
| Log likelihood | −1411.93 | ||||||
OLS: Ordinary Least Square. Cons: constant terms. z statistics in parentheses. N sample size. * p < 0.1, ** p < 0.05, *** p < 0.01 indicate that the coefficients of the explanatory variables are significant at the 10%, 5%, and 1% levels, respectively.