Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (9): 117-126.DOI: 10.11686/cyxb2020337
Ting-mei WU(), Hui-long LIN(), Di FAN, Chang-ting JI, Yu-ting ZHAO, Jing-qiong WEI
Received:
2020-07-15
Revised:
2020-11-02
Online:
2021-08-30
Published:
2021-08-30
Contact:
Hui-long LIN
Ting-mei WU, Hui-long LIN, Di FAN, Chang-ting JI, Yu-ting ZHAO, Jing-qiong WEI. Factors influencing the scale of herdsmen’s livestock farming in tundra alpine grassland-A case study from Qinghai Province[J]. Acta Prataculturae Sinica, 2021, 30(9): 117-126.
影响因素 Influencing factors | 指标因子 Index factor | 因子含义 Factor meaning | 符号 Symbol |
---|---|---|---|
个人特征Personal characteristics | 户主年龄Age of head of household | 户主实际年龄Actual age of head of household | P1 |
户主受教育水平Education level of head of household (a) | 户主受教育年限Education level of head of household | P2 | |
家庭特征Family characteristics | 家庭整体劳动力Overall family labor | 家庭整体劳动力数量Number of overall family labor | H1 |
非牧就业收入占比Proportion of non-pastoral employment income (%) | 非牧就业收入占家庭总收入的比重Proportion of non-pastoral employment income | H2 | |
草地经营特征Grassland management characteristics | 人均经营草地面积Per capita operating grassland area (hm2·person-1) | 家庭经营草地面积除以家庭人口数Family-run grassland area divided by household population | G1 |
草原补奖金额Prairie supplement amount (×103 CNY) | 牧户所获草原补奖资金总额Total amount of grassland supplementary funds received by herdsmen | G2 | |
外部环境因素External environmental factors | 海拔Altitude (km) | 牧户所处位置海拔Altitude of the herdsman | E1 |
湿润度K Wetness K | 牧户最常使用草地的湿润度K值Herders most often use the wetness K value of grassland moisture | E2 | |
年降水Annual precipitation (mm) | 牧户最常使用草地的年均降水量The average annual precipitation of pastures most used by grassland | E3 | |
年积温Annual accumulated temperature (℃) | 牧户最常使用草地>0 ℃的年积温Herders most often use grassland with an annual accumulated temperature of >0 ℃ | E4 |
Table 1 Impact factor meaning and symbols
影响因素 Influencing factors | 指标因子 Index factor | 因子含义 Factor meaning | 符号 Symbol |
---|---|---|---|
个人特征Personal characteristics | 户主年龄Age of head of household | 户主实际年龄Actual age of head of household | P1 |
户主受教育水平Education level of head of household (a) | 户主受教育年限Education level of head of household | P2 | |
家庭特征Family characteristics | 家庭整体劳动力Overall family labor | 家庭整体劳动力数量Number of overall family labor | H1 |
非牧就业收入占比Proportion of non-pastoral employment income (%) | 非牧就业收入占家庭总收入的比重Proportion of non-pastoral employment income | H2 | |
草地经营特征Grassland management characteristics | 人均经营草地面积Per capita operating grassland area (hm2·person-1) | 家庭经营草地面积除以家庭人口数Family-run grassland area divided by household population | G1 |
草原补奖金额Prairie supplement amount (×103 CNY) | 牧户所获草原补奖资金总额Total amount of grassland supplementary funds received by herdsmen | G2 | |
外部环境因素External environmental factors | 海拔Altitude (km) | 牧户所处位置海拔Altitude of the herdsman | E1 |
湿润度K Wetness K | 牧户最常使用草地的湿润度K值Herders most often use the wetness K value of grassland moisture | E2 | |
年降水Annual precipitation (mm) | 牧户最常使用草地的年均降水量The average annual precipitation of pastures most used by grassland | E3 | |
年积温Annual accumulated temperature (℃) | 牧户最常使用草地>0 ℃的年积温Herders most often use grassland with an annual accumulated temperature of >0 ℃ | E4 |
变量 Variable | 平均值 Mean | 标准差 Standard deviation | 最小值 Minimum value | 最大值 Maximum value |
---|---|---|---|---|
牧户家畜养殖量Livestock breeding volume of herdsmen (Y) | 221.47 | 161.91 | 0.00 | 781.60 |
户主年龄Age of head of household (P1, a) | 46.71 | 13.57 | 19.00 | 92.00 |
户主受教育水平Education level of head of household (P2, a) | 1.43 | 2.78 | 0.00 | 12.00 |
家庭整体劳动力Overall family labor (H1) | 2.46 | 1.17 | 0.00 | 7.00 |
非牧就业收入占比Proportion of non-pastoral employment income (H2, %) | 14.61 | 23.19 | 0.00 | 95.65 |
人均经营草地面积Per capita operating grassland area (G1, hm2) | 27.40 | 29.41 | 0.00 | 182.50 |
草原补奖金额Prairie supplement amount (G2, ×103 CNY) | 9.42 | 7.44 | 0.18 | 54.18 |
政策类型Type of policy (Bb) | 0.55 | 0.50 | 0.00 | 1.00 |
Table 2 Descriptive statistics of variable
变量 Variable | 平均值 Mean | 标准差 Standard deviation | 最小值 Minimum value | 最大值 Maximum value |
---|---|---|---|---|
牧户家畜养殖量Livestock breeding volume of herdsmen (Y) | 221.47 | 161.91 | 0.00 | 781.60 |
户主年龄Age of head of household (P1, a) | 46.71 | 13.57 | 19.00 | 92.00 |
户主受教育水平Education level of head of household (P2, a) | 1.43 | 2.78 | 0.00 | 12.00 |
家庭整体劳动力Overall family labor (H1) | 2.46 | 1.17 | 0.00 | 7.00 |
非牧就业收入占比Proportion of non-pastoral employment income (H2, %) | 14.61 | 23.19 | 0.00 | 95.65 |
人均经营草地面积Per capita operating grassland area (G1, hm2) | 27.40 | 29.41 | 0.00 | 182.50 |
草原补奖金额Prairie supplement amount (G2, ×103 CNY) | 9.42 | 7.44 | 0.18 | 54.18 |
政策类型Type of policy (Bb) | 0.55 | 0.50 | 0.00 | 1.00 |
影响因子Impact factor | 主成分1 PCA1 | 主成分2 PCA2 | 主成分3 PCA3 | 主成分4 PCA4 |
---|---|---|---|---|
户主年龄Head of household (P1) | -0.0845 | 0.3948 | -0.5880 | 0.0262 |
户主受教育水平Education level of head of household (P2) | -0.0127 | 0.0414 | 0.8510 | 0.0685 |
家庭整体劳动力Overall family labor (H1) | -0.0912 | 0.5612 | -0.1380 | 0.4863 |
非牧就业收入占比Proportion of non-pastoral employment income (H2) | 0.0026 | -0.0545 | 0.0945 | 0.8537 |
人均经营草地面积Per capita operating grassland area (G1) | 0.2849 | 0.5912 | 0.2934 | -0.3767 |
草原补奖金额Prairie supplement amount (G2) | -0.1069 | 0.7392 | -0.1148 | -0.0285 |
海拔 Altitude (E1) | 0.9533 | 0.0051 | 0.0299 | -0.0464 |
湿润度K Wetness K (E2) | 0.9457 | 0.0629 | 0.0269 | -0.0488 |
年降水Annual precipitation (E3) | 0.8941 | -0.1797 | -0.0642 | 0.1624 |
年积温Annual accumulated temperature (E4) | -0.9371 | -0.0454 | -0.0689 | 0.1187 |
Table 3 Principal component load
影响因子Impact factor | 主成分1 PCA1 | 主成分2 PCA2 | 主成分3 PCA3 | 主成分4 PCA4 |
---|---|---|---|---|
户主年龄Head of household (P1) | -0.0845 | 0.3948 | -0.5880 | 0.0262 |
户主受教育水平Education level of head of household (P2) | -0.0127 | 0.0414 | 0.8510 | 0.0685 |
家庭整体劳动力Overall family labor (H1) | -0.0912 | 0.5612 | -0.1380 | 0.4863 |
非牧就业收入占比Proportion of non-pastoral employment income (H2) | 0.0026 | -0.0545 | 0.0945 | 0.8537 |
人均经营草地面积Per capita operating grassland area (G1) | 0.2849 | 0.5912 | 0.2934 | -0.3767 |
草原补奖金额Prairie supplement amount (G2) | -0.1069 | 0.7392 | -0.1148 | -0.0285 |
海拔 Altitude (E1) | 0.9533 | 0.0051 | 0.0299 | -0.0464 |
湿润度K Wetness K (E2) | 0.9457 | 0.0629 | 0.0269 | -0.0488 |
年降水Annual precipitation (E3) | 0.8941 | -0.1797 | -0.0642 | 0.1624 |
年积温Annual accumulated temperature (E4) | -0.9371 | -0.0454 | -0.0689 | 0.1187 |
变量 Variable | OLS回归 OLS regression | QR回归QR regression | |||
---|---|---|---|---|---|
QR_10 | QR_25 | QR_50 | QR_75 | ||
个人特征Personal characteristics | |||||
户主年龄 Age of head of household (P1) | -0.0018 | -0.0028 | 0.0044 | 0.0007 | 0.0010 |
(0.0060) | (0.0131) | (0.0065) | (0.0049) | (0.0044) | |
户主受教育水平Education level of head of household (P2) | -0.0636 | -0.3192* | 0.0080 | 0.0070 | 0.0309 |
(0.0468) | (0.1709) | (0.0833) | (0.0273) | (0.0245) | |
家庭特征Family characteristics | |||||
家庭整体劳动力Overall family labor (H1) | 0.1442* | 0.2047 | 0.1834** | 0.0680 | 0.0633 |
(0.0790) | (0.1420) | (0.0889) | (0.0547) | (0.0541) | |
非牧就业收入占比Proportion of non-pastoral employment income (H2) | -0.0133** | -0.0297* | -0.0092 | -0.0038 | -0.0027 |
(0.0059) | (0.0170) | (0.0085) | (0.0039) | (0.0037) | |
草地经营特征Grassland management characteristics | |||||
人均经营草地面积Per capita operating grassland area (G1) | 0.0083** | 0.0047 | 0.0032 | 0.0062** | 0.0066** |
(0.0033) | (0.0082) | (0.0050) | (0.0029) | (0.0026) | |
草原补奖金额Prairie supplement amount (G2) | 0.0388*** | 0.0469*** | 0.0373*** | 0.0369*** | 0.0250*** |
(0.0090) | (0.0139) | (0.0099) | (0.0087) | (0.0085) | |
禁牧补助Grazing ban (G1×Bb) | -0.0400*** | -0.0573 | -0.0237 | -0.0268*** | -0.0247** |
(0.0127) | (0.0460) | (0.0151) | (0.0097) | (0.0103) | |
外部环境因素External environmental factors | |||||
海拔Altitude (E1) | -0.0003 | -0.0005 | -0.0005** | 0.0004*** | 0.0003** |
(0.0002) | (0.0003) | (0.0002) | (0.0001) | (0.0001) | |
常数项Constant term (β0) | 5.7760*** | 5.6583*** | 5.5783*** | 6.2415*** | 6.2934*** |
(0.8440) | (1.5203) | (0.8041) | (0.6949) | (0.6438) | |
决定系数Pseudo (R2) | 0.3121 | 0.2045 | 0.1648 | 0.2028 | 0.1648 |
观测值Observations | 203 |
Table 4 Quantile regression results of livestock breeding volume of herdsmen of different sizes
变量 Variable | OLS回归 OLS regression | QR回归QR regression | |||
---|---|---|---|---|---|
QR_10 | QR_25 | QR_50 | QR_75 | ||
个人特征Personal characteristics | |||||
户主年龄 Age of head of household (P1) | -0.0018 | -0.0028 | 0.0044 | 0.0007 | 0.0010 |
(0.0060) | (0.0131) | (0.0065) | (0.0049) | (0.0044) | |
户主受教育水平Education level of head of household (P2) | -0.0636 | -0.3192* | 0.0080 | 0.0070 | 0.0309 |
(0.0468) | (0.1709) | (0.0833) | (0.0273) | (0.0245) | |
家庭特征Family characteristics | |||||
家庭整体劳动力Overall family labor (H1) | 0.1442* | 0.2047 | 0.1834** | 0.0680 | 0.0633 |
(0.0790) | (0.1420) | (0.0889) | (0.0547) | (0.0541) | |
非牧就业收入占比Proportion of non-pastoral employment income (H2) | -0.0133** | -0.0297* | -0.0092 | -0.0038 | -0.0027 |
(0.0059) | (0.0170) | (0.0085) | (0.0039) | (0.0037) | |
草地经营特征Grassland management characteristics | |||||
人均经营草地面积Per capita operating grassland area (G1) | 0.0083** | 0.0047 | 0.0032 | 0.0062** | 0.0066** |
(0.0033) | (0.0082) | (0.0050) | (0.0029) | (0.0026) | |
草原补奖金额Prairie supplement amount (G2) | 0.0388*** | 0.0469*** | 0.0373*** | 0.0369*** | 0.0250*** |
(0.0090) | (0.0139) | (0.0099) | (0.0087) | (0.0085) | |
禁牧补助Grazing ban (G1×Bb) | -0.0400*** | -0.0573 | -0.0237 | -0.0268*** | -0.0247** |
(0.0127) | (0.0460) | (0.0151) | (0.0097) | (0.0103) | |
外部环境因素External environmental factors | |||||
海拔Altitude (E1) | -0.0003 | -0.0005 | -0.0005** | 0.0004*** | 0.0003** |
(0.0002) | (0.0003) | (0.0002) | (0.0001) | (0.0001) | |
常数项Constant term (β0) | 5.7760*** | 5.6583*** | 5.5783*** | 6.2415*** | 6.2934*** |
(0.8440) | (1.5203) | (0.8041) | (0.6949) | (0.6438) | |
决定系数Pseudo (R2) | 0.3121 | 0.2045 | 0.1648 | 0.2028 | 0.1648 |
观测值Observations | 203 |
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