林业社会化服务对农户家庭收入差距的影响

doi:10.11707/j.1001-7488.LYKX20220729

摘要/Abstract

摘要：

目的: 缩小农户家庭之间的收入差距是实现乡村共同富裕的重要环节。量化分析林业社会化服务对农户家庭收入差距的影响及其作用机制, 为新时代新征程健全林业社会化服务体系助力实现乡村共同富裕的规划和政策提供决策参考。方法: 基于分工与专业化效应、优化家庭劳动力配置与促进林地流转经营的理论, 构建林业社会化服务对农户家庭收入差距影响的分析框架, 利用福建、江西、浙江、湖南、四川和广西6个省(区)的2413份农户调查数据, 运用无条件分位数回归模型检验林业社会化服务对农户家庭收入差距的影响, 并分析不同林业社会化服务采纳程度下的影响差异及其分解效应。结果: 1) 林业社会化服务对农户家庭收入水平具有显著增收效应, 且对低收入农户家庭的增收效应更大, 有利于缩小农户家庭收入差距。2)林业社会化服务对不同收入水平农户家庭收入的边际贡献存在显著差异。其中, 林业社会化服务可使基尼系数显著减小, 总体呈现分位点越低边际贡献越大的变化趋势, 林业社会化服务有助于缩小农村家庭收入差距。3)系数效应主导了农村家庭收入差距的扩大。其中, 户主是否为村干部、林业收入占比、林地细碎化程度、村距县城距离、地形是影响Q₁₀~Q₉₀分位点上系数效应的主要因素。4)林业社会化服务采纳程度均值为0.354, 林业社会化服务对低采纳水平组农户家庭总体具有较好的增收效应, 农户家庭收入差距主要由特征效应主导。结论: 要高度重视和充分发挥林业社会化服务缩小农户家庭收入差距的积极作用, 不断完善面向低收入农户家庭的林业社会化服务供需支持政策, 采取针对性的激励政策, 激发与鼓励农户积极采纳林业社会化服务, 推动形成"以需促供、以供带需"的良性循环格局。

关键词: 林业社会化服务, 共同富裕, 农户家庭收入差距, 无条件分位数回归

Abstract:

Objective: To narrow the income gaps among farmers is an important link to achieve common prosperity in rural areas.Quantitative analysis of the impact of socialized forestry services on the income gap of peasant households and its mechanism was conducted to improve the socialized forestry service system in the new era and new journey and to help achieve the common prosperity of rural planning and policy decision-making. Methods: Based on the theories of division of labor and specialization effect, optimization of family labor allocation and promotion of forestland circulation and management, the analysis framework of the impact of socialization of forestry services on household income gap of farmers was constructed.The survey data of 2 413 households in Fujian, Jiangxi, Zhejiang, Hunan, Sichuan, Guangxi provinces (region) were used and the unconditional quantile regression model was applied to test the impact of socialized forestry services on household income gap, as well as to analyze the difference and decomposition effect of different adoption degrees of socialized forestry services. Results: 1) Socialized forestry services had a significant increase effect on the income level of farmer households, and the increase effect on low-income households was greater, which was conducive to narrowing the income gap of farmers' households.2) There were significant differences in the marginal contribution of socialized forestry services to the household income of farmers with different income levels.The socialized forestry services could significantly reduce the Gini coefficient, and the lower the income level, the greater the marginal contribution, the socialized forestry services could help narrow the income gap of rural households.3) The coefficient effect dominated the widening of rural household income gap.Among them, whether the head of the household is a village cadre, the proportion of forestry income, the degree of woodland fragmentation, the distance between the village and the county town, and the terrain were the main factors affecting the coefficient effect at the income levels of Q₁₀-Q₉₀.4) The average adoption degree of socialized forestry services was 0.354, and forestry socialized services had a good income increase effect on households with low adoption level, and the income gap of households was mainly dominated by the characteristic effect. Conclusions: It needs to attach great importance and give full play to the positive role of socialized forestry services in reducing the income gaps among farm households, through continuous improvement of supportive policies on demand and supply of socialized forestry services for low-income farmer households, implementation of targeted incentives to stimulate and encourage farmers to actively adopt socialized forestry services to form a "demand promotes supply and supply drives demand" virtuous cycle pattern.

Key words: socialized forestry service, common prosperity, household income gap, unconditional quantile regression

中图分类号:

S7-9
F307.2

廖文梅,林静,沈月琴,孔凡斌. 林业社会化服务对农户家庭收入差距的影响[J]. 林业科学, 2023, 59(1): 59-73.

Wenmei Liao,Jing Lin,Yueqin Shen,Fanbin Kong. Influence of Socialized Forestry Services on the Income Gap of Rural Households[J]. Scientia Silvae Sinicae, 2023, 59(1): 59-73.

图/表 12

图1

表1

变量定义及其描述性统计"

变量类型 Variable type	变量名称 Variables	变量解释 Variable description	均值 Mean	标准偏差 SD	最小值 Min	最大值 Max
被解释变量 Explained variables	农户家庭人均年收入 Per capita annual income of rural households	农户家庭人均年收入(万元) Per capita annual income of rural households (ten thousand yuan)	2.89	4.36	0.22	5.67
	林业社会化服务 Forestry socialized services	林业社会化服务采纳程度 Forestry socialization service adopted level	0.35	0.18	0	0.87
	林业技术培训服务 Forestry technology training services	是否接受过林业技术培训服务 Whether received forestry technical training services	0.43	0.50	0	1
	林业市场信息服务 Forestry market information services	是否接受过林业市场信息服务 Whether received forestry market information service	0.25	0.43	0	1
核心解释变量 Key explanatory variables	林业投资融资服务 Forestry investment and financing services	是否接受过林业投资融资服务 Whether received forestry investment and financing services	0.26	0.44	0	1
	林业政策法律咨询服务 Forestry policy legal advisory services	是否接受过林业政策法律咨询服务 Whether received forestry policy legal advisory services	0.35	0.48	0	1
	病虫害及火灾预防服务 Pest and fire prevention services	是否接受过病虫害及火灾预防服务 Whether received pest and fire prevention services	0.60	0.49	0	1
	林业生产外包中介服务 Forestry production outsourcing intermediary services	是否接受过林业生产外包中介服务 Whether received forestry production outsourcing intermediary services	0.23	0.42	0	1
	户主年龄 Household age	户主实际年龄(岁) Actual age of head of household (years)	52.55	10.44	22	88
	户主文化水平 Household cultural level	户主受教育的年限 Years of education of the head of household	7.07	2.82	0	16
	是否村干部 Whether a village cadre	户主是村干部(否=0；是=1) Whether the head of the household is village cadre (No = 0; Yes =1)	0.26	0.44	0	1
	劳动力数量占比 Proportion of labor force	家庭劳动力数量/家庭总人口数 Number of labor force/total household population	0.71	0.24	0	1
控制变量 Control variables	林业收入占比 Proportion of forestry income	林业收入/家庭总收入 Forestry income/total household income	0.14	0.25	0	1
	林地经营面积 Area of forestland managed by farmers	农户实际经营的林地面积 Area of forestland actually managed by farmers/hm²	2.95	6.59	0	134.67
	林地细碎化程度 Degree of forestland fragmentation	林地流转前面积/林地流转前块数 Number of forestland before transfer/area before transfer	1.00	2.85	0	66.67
	林地距离公路距离 Distance from forestland to main road	以实际距离计算 Calculated by actual distance/km	1.57	1.61	0	20
	村距县城距离 Distance from village committee to county	以实际距离计算 Calculated by actual distance /km	32.55	25.71	0	137
	地形 Terrain	农户所在地形是否为山地(否=0；是=1) Whether the terrain is mountainous (No = 0; Yes =1)	0.60	0.49	0	1
地区虚拟变量(以浙江省为参照) Region dummy variable (Zhejiang Province as reference)		湖南省=1, 其他=0 Hunan Province =1, others = 0	0.19	0.39	0	1
		江西省=1, 其他=0 Jiangxi Province =1, others = 0	0.20	0.40	0	1
		四川省=1, 其他=0 Sichuan Province =1, others = 0	0.22	0.41	0	1
		福建省=1, 其他=0 Fujian Province =1, others = 0	0.20	0.40	0	1
		广西省=1, 其他=0 Guangxi Province =1, others = 0	0.21	0.39	0	1

表1

表2

表3

林业社会化服务对农户家庭收入差距的影响分析结果(n=2 413)①"

变量 Varibles	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
林业社会化服务 Forestry socialized services	-0.080^***	0.782^***	0.604^***	0.591^***	0.638^***	0.631^***
林业社会化服务 Forestry socialized services	(0.020)	(0.226)	(0.141)	(0.122)	(0.139)	(-0.171)
户主年龄 Household age	0.001^***	-0.011^**	-0.009^***	-0.006^***	-0.012^***	-0.012^***
户主年龄 Household age	(0.000)	(0.004)	(0.003)	(0.002)	(0.002)	(-0.003)
户主文化水平 Household cultural level	-0.003^*	0.008	0.024^**	0.028^***	0.012	0.013
户主文化水平 Household cultural level	(0.001)	(0.015)	(0.010)	(0.008)	(0.010)	(-0.014)
是否村干部 Whether a village cadre	-0.009	0.088	0.057	0.071	0.056	0.010
是否村干部 Whether a village cadre	(0.008)	(0.086)	(0.056)	(0.050)	(0.060)	(-0.086)
劳动力数量占比 Proportion of labor force	-0.031^**	0.260	0.267^**	0.471^***	0.490^***	0.2440^*
劳动力数量占比 Proportion of labor force	(0.015)	(0.168)	(0.106)	(0.091)	(0.104)	(-0.147)
林业收入占比 Proportion of forestry income	-0.016	0.244	0.142	0.318^***	0.486^***	0.907^***
林业收入占比 Proportion of forestry income	(0.013)	(0.150)	(0.099)	(0.088)	(0.111)	(-0.183)
林地经营面积 The area of forestland managed by farmers	-0.002^**	0.014^**	0.011^*	0.009^*	0.004	0.008
林地经营面积 The area of forestland managed by farmers	(0.001)	(0.007)	(0.006)	(0.005)	(0.007)	(-0.011)
林地细碎化程度 Degree of forestland fragmentation	-0.001	-0.004	0.012	0.012	0.027^**	0.007
林地细碎化程度 Degree of forestland fragmentation	(0.001)	(0.015)	(0.011)	(0.010)	(0.012)	(-0.026)
林地距离公路距离 Distance from forestland to main road	-0.003	0.009	0.032^**	0.042^***	0.037^**	0.043
林地距离公路距离 Distance from forestland to main road	(0.002)	(0.021)	(0.013)	(0.013)	(0.017)	(-0.030)
村距县城距离 Distance from village committee to county	0.002^*	-0.001	-0.003^***	-0.001	-0.001	0.001
村距县城距离 Distance from village committee to county	(0.001)	(0.002)	(0.001)	(0.001)	(0.001)	(-0.001)
地形 Terrain	0.008	-0.198^**	0.012	0.012	-0.034	-0.094
地形 Terrain	(0.007)	(0.083)	(0.054)	(0.048)	(0.056)	(-0.078)
地区虚拟变量 Region dummy variable	0.004	0.024	-0.076^***	-0.090^***	-0.087^***	-0.057^***
地区虚拟变量 Region dummy variable	(0.003)	(0.033)	(0.021)	(0.017)	(0.018)	(-0.022)
常数项 Constant	0.215^***	8.603^***	9.315^***	9.494^***	10.504^***	11.093^***
常数项 Constant	(0.031)	(0.363)	(0.225)	(0.187)	(0.209)	(-0.279)
R²	0.029	0.016	0.048	0.071	0.065	0.036

表3

表4

林业社会化服务对农户家庭收入差距的影响分解回归结果(n=2 413)"

项目 Item	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
总差异 The total difference	-0.103^**	-0.804^***	-0.498^***	-0.514^***	-0.626^***	-0.562^***
总差异 The total difference	(0.041)	(-0.080)	(-0.049)	(-0.047)	(-0.060)	(-0.073)
特征效应贡献 Characteristic effect contribution	-2.019^*	-0.021	-0.045^**	-0.041^**	-0.046^**	-0.053^**
特征效应贡献 Characteristic effect contribution	(1.074)	-(0.030)	(-0.021)	(-0.020)	(-0.020)	(-0.021)
系数效应贡献	1.917^*	-0.542^***	-0.453^***	-0.473^***	-0.580^***	-0.751^***
Coefficient effect contribution	(1.076)	(-0.084)	(-0.051)	(-0.049)	(-0.062)	(-0.076)
特征效应Characteristic effect
户主年龄	0.002	-0.031^*	-0.031^***	-0.019^**	-0.031^***	-0.028^***
Household age	(0.008)	(-0.016)	(-0.011)	(-0.009)	(-0.010)	(-0.010)
户主受教育年限	0.001	-0.005	-0.011	-0.012^*	-0.010	-0.003
Household cultural level	(0.003)	(-0.013)	(-0.009)	(-0.008)	(-0.008)	(-0.009)
是否村干部	0.001	-0.008	-0.007	-0.007^*	-0.009^*	-0.007
Whether a village cadre	(0.004)	(-0.007)	(-0.005)	(-0.004)	(-0.005)	(-0.006)
劳动力占比	-0.007	0.039^**	0.039^***	0.049^***	0.046^***	0.029^***
Proportion of labor force	(0.012)	(-0.016)	(-0.011)	(-0.010)	(-0.011)	(-0.011)
林业收入占比	0.005	-0.003	0.000	-0.007	-0.011^*	-0.022^**
Proportion of forestry income	(0.009)	(-0.007)	(-0.004)	(-0.004)	(-0.006)	(-0.009)
林地经营面积	-0.791	-0.025^*	-0.017	-0.012	0.004	0.013
Area of forestland managed by farmers	(0.750)	(-0.014)	(-0.011)	(-0.009)	(-0.011)	(-0.010)
林地细碎化程度	1.135^*	0.005	-0.004	-0.007	-0.014^*	-0.024^**
Degree of forestland fragmentation	(0.660)	(-0.009)	(-0.005)	(-0.005)	(-0.007)	(-0.012)
林地距离公路距离	-0.001	-0.001	-0.003	-0.004	-0.004	-0.002
Distance from forestland to main road	(0.003)	(-0.003)	(-0.003)	(-0.004)	(-0.004)	(-0.003)
村距县城距离	-0.565^*	-0.001	-0.004	-0.002	-0.002	0.000
Distance from village committee to county	(0.243)	(-0.002)	(-0.004)	(-0.003)	(-0.003)	(-0.001)
地形	-0.033	0.008	0.001	-0.004	-0.003	0.002
Terrain	(0.025)	(-0.006)	(-0.003)	(-0.003)	(-0.003)	(-0.003)
地区虚拟变量	-1.767^**	0.001	-0.009^*	-0.015^*	-0.012^*	-0.010
Region dummy variable	(0.848)	(-0.004)	(-0.005)	(-0.008)	(-0.007)	(-0.006)
系数效应Coefficient effect
户主年龄	0.130	0.254	-0.328	-0.077	-0.061	0.086
Household age	(0.249)	(-0.451)	(-0.273)	(-0.265)	(-0.319)	(-0.403)
户主受教育年限	-0.014	-0.039	-0.075	0.056	-0.037	0.019
Household cultural level	(0.105)	(-0.233)	(-0.144)	(-0.139)	(-0.176)	(-0.223)
是否村干部	-0.006	0.030	0.087^***	0.045	0.08^*	0.045
Whether a village cadre	(0.021)	(-0.054)	(-0.034)	(-0.032)	(-0.041)	(-0.053)
劳动力占比	-0.210	0.229	0.027	-0.106	-0.264	-0.089
Proportion of labor force	(0.128)	(-0.231)	(-0.138)	(-0.139)	(-0.193)	(-0.244)
林业收入占比	0.006	0.029	-0.061^**	-0.034	-0.047	-0.012
Proportion of forestry income	(0.023)	(-0.052)	(-0.029)	(-0.029)	(-0.039)	(-0.054)
林地经营面积	0.858	0.113	0.041	-0.002	-0.028	-0.073
Area of forestland managed by farmers	(0.806)	(-0.078)	(-0.044)	(-0.040)	(-0.052)	(-0.070)
林地细碎化程度	-1.185^*	-0.070	-0.013	0.012	0.021	0.101^**
Degree of forestland fragmentation	(0.687)	(-0.046)	(-0.026)	(-0.024)	(-0.030)	(-0.040)
林地距离公路距离	-0.070	-0.041	0.014	0.009	0.066	0.011
Distance from forestland to main road	(0.117)	(-0.063)	(-0.042)	(-0.042)	(-0.058)	(-0.088)
村距县城距离	1.768^**	-0.034	-0.094	-0.084	-0.110	-0.115
Distance from village committee to county	(0.746)	(-0.091)	(-0.064)	(-0.059)	(-0.074)	(-0.096)
地形	0.166^*	-0.146	0.089	0.165^**	0.133	0.012
Terrain	(0.089)	(-0.107)	(-0.067)	(-0.066)	(-0.085)	(-0.106)
地区虚拟变量	已控制	已控制	已控制	已控制	已控制	已控制
Region dummy variable	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
常数项	-2.562^*	-0.799	0.043	-0.275	-0.155	-0.77
Constant	1.317	-0.639	-0.407	-0.391	-0.475	-0.615

表4

表5

表6

表7

替换核心解释变量的稳健性检验结果(n=2 413)"

变量 Variables	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
林业社会化服务种类数	-0.082^***	0.204^***	0.065	0.139^***	0.131^**	0.190^**
Number of types of forestry socialized services	(-0.030)	(0.061)	(-0.063)	(-0.053)	(-0.059)	(-0.078)
户主年龄	0.001^***	-0.010^***	-0.009^***	-0.007^***	-0.013^***	-0.012^***
Household age	(0.000)	(0.002)	(-0.003)	(-0.002)	(-0.002)	(-0.003)
户主受教育年限	-0.002^*	0.018^**	0.022^**	0.026^***	0.010	0.011
Household cultural level	(-0.001)	(-0.007)	(-0.010)	(-0.008)	-0.010)	(-0.014)
是否村干部	-0.011	0.048	0.078	0.088^*	0.076	0.026
Whether a village cadre	(-0.008)	(-0.045)	(-0.056)	(-0.051)	(-0.060)	(-0.086)
劳动力占比	-0.027^*	0.336^***	0.240^**	0.445^***	0.461^***	0.217
Proportion of labor force	(-0.015)	(-0.081)	(-0.106)	(-0.091)	(-0.104)	(-0.147)
林业收入占比	-0.015	0.363^***	0.139	0.319^***	0.486^***	0.910^***
Proportion of forestry income	(-0.013)	(-0.078)	(-0.100)	(-0.089)	(-0.111)	(-0.183)
林地经营面积	-0.002^***	0.007	0.013^**	0.012^**	0.007	0.011
Area of forestland managed by farmers	(-0.001)	(-0.004)	(-0.006)	(-0.005)	(-0.007)	(-0.011)
林地细碎化程度	0.001	0.016	0.011	0.011	0.026^**	0.006
Degree of forestland fragmentation	(-0.001)	(-0.010)	(-0.012)	(-0.010)	(-0.012)	(-0.026)
林地距离公路距离	-0.003	0.036^***	0.030^**	0.040^***	0.035^**	0.041
Distance from forestland to main road	(-0.002)	(-0.012)	(-0.013)	(-0.013)	(-0.017)	(-0.030)
村距县城距离	0.002^**	-0.001^*	-0.003^***	-0.001	-0.001	0.001
Distance from village committee to county	(0.001)	(-0.001)	(-0.001)	(-0.001)	(-0.001)	(-0.001)
地形	0.006	-0.196^**	0.014	0.013	-0.033	-0.095
Terrain	(-0.007)	(-0.083)	(-0.055)	(-0.048)	(-0.056)	(-0.078)
地区虚拟变量	已控制	已控制	已控制	已控制	已控制	已控制
Region dummy variable	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
常数项	0.248^***	9.783^***	9.573^***	9.674^***	10.716^***	11.244^***
Constant	-0.041	-0.165	-0.218	-0.183	-0.205	-0.279
R²	0.028	0.079	0.041	0.064	0.058	0.034

表7

表8

表9

表10

表11

林业社会化服务对农户家庭收入差距影响分解的分组回归结果"

项目 Item	低水平组 Low level group(n=1 268)
项目 Item	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
总差异	-0.089^***	-0.376^***	-0.217^***	-0.054	-0.036	-0.219
Total difference	(-0.033)	(-0.087)	(-0.069)	(-0.060)	(-0.069)	(-0.137)
系数效应贡献	0.002	-0.003	-0.024	-0.017	-0.035	-0.035
Coefficient effect contribution	(-0.010)	(-0.032)	(-0.027)	(-0.023)	(-0.027)	(-0.030)
特征效应贡献	-0.091^***	-0.373^***	-0.193^***	-0.038	-0.001	-0.184
Characteristic effect contribution	(-0.034)	(-0.091)	(-0.071)	(-0.062)	(-0.071)	(-0.140)
控制变量	已控制	已控制	已控制	已控制	已控制	已控制
Control variables	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
地区虚拟变量	已控制	已控制	已控制	已控制	已控制	已控制
Region dummy variable	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
常数项	-0.139	-1.746^*	0.765	0.848	1.006	0.660
Constant	(-0.281)	(-0.826)	(-0.625)	(-0.502)	(-0.560)	(-1.034)

项目 Item	高水平组 High level group(n=1 145)
项目 Item	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
总差异	-0.079^***	-0.162	-0.274^***	-0.194^***	-0.145^*	-0.106
Total difference	(-0.028)	(-0.118)	(-0.072)	(-0.073)	(-0.076)	(-0.099)
系数效应贡献	-0.004	-0.046	-0.108^***	-0.112^***	-0.099^***	-0.047
Coefficient effect contribution	(-0.010)	(-0.039)	(-0.032)	(-0.033)	(-0.034)	(-0.037)
特征效应贡献	-0.075^***	-0.116	-0.166^**	-0.082	-0.045	-0.059
Characteristic effect contribution	(-0.028)	(-0.119)	(-0.071)	(-0.074)	(-0.082)	(-0.106)
控制变量	已控制	已控制	已控制	已控制	已控制	已控制
Control variables	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
地区虚拟变量	已控制	已控制	已控制	已控制	已控制	已控制
Region dummy variable	Controlled	Controlled	Controlled	Controlled	Controlled	Controlled
常数项	-0.187	1.464	1.002	0.278	0.244	-0.299
Constant	(-0.191)	(-0.926)	(-0.560)	(-0.551)	(-0.557)	(-0.754)

表11

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匹配方法 Matching method	统计值 Value of statistics	模型1：Q_gini Model 1: Q_gini	模型2：Q₁₀ Model 2: Q₁₀	模型3：Q₂₅ Model 3: Q₂₅	模型4：Q₅₀ Model 4: Q₅₀	模型5：Q₇₅ Model 5: Q₇₅	模型6：Q₉₀ Model 6: Q₉₀
最近邻匹配 Nearest neighbor matching	平均处理效应 Average treatment effect	-0.178^***	0.254^***	0.001	0.022	0.032^**	0.101^**
最近邻匹配 Nearest neighbor matching	标准误 Standard error	(0.044)	(0.096)	(0.022)	(0.014)	(0.015)	(0.050)
半径匹配 Radius matching	平均处理效应 Average treatment effect	-0.188^***	0.195^**	0.004	0.020	0.026^*	0.109^**
半径匹配 Radius matching	标准误 Standard error	(0.040)	(0.078)	(0.020)	(0.013)	(0.014)	(0.047)
核匹配 Nuclear matching	平均处理效应 Average treatment effect	-0.187^***	0.203^**	0.001	0.020	0.027^*	0.108^**
核匹配 Nuclear matching	标准误 Standard error	(0.040)	(0.083)	(0.020)	(0.013)	(0.014)	(0.048)

变量Variables	样本状态 State of the sample	平均处理效应 Average processing effect		标准偏差 Standard deviation	标准偏差绝对值降低(%) Absolute standard deviation decreases(%)	T值 T value
变量Variables	样本状态 State of the sample	处理组 Treated group	对照组 Control group	标准偏差 Standard deviation	标准偏差绝对值降低(%) Absolute standard deviation decreases(%)	T值 T value
户主年龄	匹配前Before matching	52.557	52.721	-3.700	29.200	-0.900
Household age	匹配后After matching	52.562	52.834	-2.600		-0.570
户主受教育年限	匹配前Before matching	7.188	6.987	7.100	83.500	1.730^*
Household cultural level	匹配后After matching	7.128	7.096	1.200		0.250
是否村干部	匹配前Before matching	0.288	0.240	11.000	78.700	2.700^***
Whether a village cadre	匹配后After matching	0.254	0.265	-2.300		-0.520
劳动力占比	匹配前Before matching	0.710	0.701	3.900	38.500	0.950
Proportion of labor force	匹配后After matching	0.706	0.712	-2.400		-0.530
林业收入占比	匹配前Before matching	0.139	0.132	3.500	25.800	0.860
Proportion of forestry income	匹配后After matching	0.140	0.133	-2.600		0.560
林地经营面积	匹配前Before matching	3.169	2.787	5.700	55.900	1.410
Area of forestland managed by farmers	匹配后After matching	2.614	2.783	-2.500		-0.670
林地细碎化程度	匹配前Before matching	1.191	0.858	11.300	79.000	2.850^***
Degree of forestland fragmentation	匹配后After matching	0.860	0.930	-2.400		-0.770
林地距离公路距离	匹配前Before matching	1.539	1.586	-2.900	4.400	-0.720
Distance from forestland to main road	匹配后After matching	1.571	1.525	2.800		0.630
村距县城距离	匹配前Before matching	31.864	33.073	-4.700	98.000	-1.140
Distance from village to county	匹配后After matching	32.456	32.480	-0.100		-0.020
地形	匹配前Before matching	0.536	0.642	-21.700	86.400	-5.30^***
Terrain	匹配后After matching	0.570	0.555	3.000		0.640

[1]	孔凡斌,崔铭烨,徐彩瑶,陆雨,沈月琴. 浙江省森林生态产品价值实现对城乡差距的影响[J]. 林业科学, 2023, 59(1): 31-43.
[2]	潘丹,罗璐薏,余异,孔凡斌. 森林资源培育工程对革命老区县域城乡收入差距的影响[J]. 林业科学, 2023, 59(1): 74-89.
[3]	孔凡斌, 阮华, 廖文梅, 秦克清. 农村劳动力转移对农户林业社会化服务需求的影响——基于1 407户农户生产环节的调查[J]. 林业科学, 2018, 54(6): 132-142.
[4]	廖文梅, 张广来, 孔凡斌. 农户林业社会化服务需求特征及其影响因素分析——基于我国8省(区)1413户农户的调查[J]. 林业科学, 2016, 52(11): 148-156.