Journal of Natural Resources, Volume. 35, Issue 5, 1043(2020)

Effects of different harvesting ways on grain loss:Based on the field survey of 3251 rural households in China

Xuan-fu LI... Dong HUANG, Xue QU and Jun-feng ZHU* |Show fewer author(s)
Author Affiliations
  • College of Economics and Management, China Agricultural University, Beijing 100083, China
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    Figures & Tables(8)
    Effects of harvesting methods and other factors on the loss of grain harvesting links
    Loss rate of grain harvesting links in different harvesting ways
    • Table 1. Variable definition and descriptive statistics

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      Table 1. Variable definition and descriptive statistics

      变量名称变量代码变量定义全部样本小麦水稻玉米
      被解释变量
      收获损失率hlr损失量/(产量+损失量)/%3.524.273.533.1
      核心解释变量
      收获方式hmeth1收获时为全人工收获:
      是=1,否=0
      0.150.030.120.24
      hmeth2收获时为半机械化收获:
      是=1,否=0
      0.380.190.30.54
      hmeth3收获时为全程机械化收获:
      是=1,否=0
      0.470.780.580.22
      生产和收获特征
      购买农机服务serv收获时是否购买了农机服务:是=1,否=00.680.860.690.58
      单产yeild每亩产量/kg490.75403.9514.06518.88
      种植规模area播种面积/亩8.474.887.9810.75
      收割时间hdays完成收割所用时间/天4.112.233.35.74
      劳动力充裕度labor收获时劳动力充裕程度:
      不足=1,一般=2,充足=3
      1.9421.921.92
      作业态度caut收获时作业态度:
      粗糙=1,一般=2,精细=3
      2.212.112.122.33
      大风天气wind收获时有大风天气:
      是=1,否=0
      0.070.040.090.06
      暴雨天气rain收获时有暴雨天气:
      是=1,否=0
      0.050.060.060.04
      其他异常天气other收获时有其他异常天气:
      是=1,否=0
      0.050.040.080.03
      虫害情况pest收获时的虫害情况:较少或没有=1,一般=2,严重=31.241.231.261.24
      个人和家庭特征
      性别gender决策者性别:男=1,女=00.820.830.820.81
      年龄age决策者年龄/岁53.9454.9353.5753.7
      受教育程度edu决策者在校时间/年7.177.36.997.24
      农业培训train决策者是否参加过农业培训,是=1,否=00.120.110.10.15
      家庭收入水平tinc家庭年纯收入/万元6.436.257.35.86
      家庭住房价值vhouse家庭居住房屋价值/万元7.547.728.516.71
    • Table 2. Loss rates of grain harvesting links in the eastern, central and western regions of China (%)

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      Table 2. Loss rates of grain harvesting links in the eastern, central and western regions of China (%)

      区域小麦水稻玉米三种粮食平均
      东部3.583.352.793.16
      中部2.124.233.433.89
      西部6.733.713.934.47
      全国4.273.533.103.52
    • Table 3. Loss rates of grain harvesting links in different agricultural machinery service modes (%)

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      Table 3. Loss rates of grain harvesting links in different agricultural machinery service modes (%)

      机械收获方式小麦水稻玉米三种粮食平均
      未采用农机服务5.284.013.083.74
      采用农机服务4.083.522.893.46
    • Table 4. Effect of mechanization on loss rate of grain harvesting

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      Table 4. Effect of mechanization on loss rate of grain harvesting

      变量小麦水稻玉米三种粮食
      模型(1)模型(2)模型(3)模型(4)
      hmeth2
      半机械化收获
      -1.00370.4552-0.5540**-0.2767
      (-1.2913)(1.6389)(-2.2056)(-1.5199)
      hmeth3
      全程机械化收获
      -1.2888*1.1077***0.44470.5031**
      (-1.6665)(4.0571)(1.3770)(2.5298)
      yeild
      单产
      -0.0099***-0.0013*-0.0036***-0.0041***
      (-7.6639)(-1.7111)(-6.6445)(-10.4037)
      area
      种植规模
      0.0342-0.0124**-0.0019-0.0050
      (1.3303)(-2.4943)(-0.4445)(-1.5426)
      hdays
      收割时间
      0.0536-0.0514**0.0063-0.0024
      (0.8816)(-2.1517)(0.3873)(-0.1813)
      labor2
      劳动力充裕度:一般
      0.2984-0.13660.16250.0650
      (0.9033)(-0.7239)(0.7535)(0.4744)
      labor3
      劳动力充裕度:充足
      -0.4606-0.0347-0.1800-0.2106
      (-1.1482)(-0.1412)(-0.6580)(-1.2101)
      caut2
      作业态度:一般
      -1.5928***-1.1190***-0.2203-0.8527***
      (-3.7183)(-4.0889)(-0.6777)(-4.3532)
      caut3
      作业态度:认真
      -2.1681***-1.1967***-0.8721***-1.3525***
      (-4.3620)(-3.8154)(-2.6372)(-6.3962)
      weather2
      大风天气
      -2.6277***0.30391.7308***0.5039**
      (-3.5063)(1.0020)(4.3964)(2.0723)
      weather3
      暴雨天气
      0.93490.56012.4956***1.4495***
      (1.5017)(1.5537)(4.5877)(5.2672)
      weather4
      其他极端天气
      8.3214***0.6196*0.53221.9062***
      (12.2233)(1.8989)(1.0520)(7.0407)
      pest2
      虫害情况:一般
      1.7951***0.9818***1.7438***1.4305***
      (5.5903)(5.0773)(7.5476)(10.1192)
      hmeth2
      虫害情况:严重
      2.0898**5.9080***4.6158***4.3627***
      (2.2462)(8.5584)(7.9868)(10.7924)
      hmeth3
      性别
      -0.06470.5767***-0.10080.0803
      (-0.1894)(2.6825)(-0.4362)(0.5375)
      serv
      决策者年龄
      -0.03390.1425***0.00480.0752*
      (-0.3624)(2.6094)(0.0711)(1.8311)
      age2
      决策者年龄平方
      0.0006-0.0012**0.0000-0.0005
      (0.6836)(-2.1734)(0.0361)(-1.3380)
      edu
      受教育程度
      0.03280.03290.1077***0.0786***
      (0.6281)(0.9920)(2.7617)(3.2868)
      train
      农业培训
      0.7667-0.3900-0.17000.0456
      (1.6413)(-1.3794)(-0.6410)(0.2525)
      tinc
      家庭收入水平
      -0.0392*0.0391***-0.0249-0.0090
      (-1.7834)(2.6703)(-1.3192)(-0.8511)
      vhouse
      家庭住房价值
      0.0226*-0.00020.01390.0151**
      (1.6734)(-0.0196)(1.2700)(2.4403)
      粮食品种已控制
      区域效应已控制已控制已控制已控制
      样本量/个1160168021895029
      调整的R20.28120.13280.16560.1559
    • Table 5. Variety estimation results

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      Table 5. Variety estimation results

      变量小麦水稻玉米三种粮食
      模型(5)模型(6)模型(7)模型(8)
      serv
      农机服务
      -0.8234*0.12920.11490.0217
      (-1.8548)(0.5204)(0.4893)(0.1327)
      生产和收获特征已控制已控制已控制已控制
      个人和家庭特征已控制已控制已控制已控制
      粮食品种已控制
      优势区域已控制已控制已控制已控制
      调整的R20.26700.12980.19630.1659
      样本量/个1121147816584257
    • Table 6. Robustness test results

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      Table 6. Robustness test results

      解释变量改变模型形式:Tobit模型
      模型(9)模型(10)
      hmeth2
      半机械收获
      -0.2940
      (-1.5403)
      hmeth3
      全程机械化收获
      0.5712***
      (2.7513)
      serv0.1051
      (0.6224)
      生产和收获特征已控制已控制
      个人和家庭特征已控制已控制
      粮食品种已控制已控制
      优势区域已控制已控制
      R2/调整的R20.03170.0346
      样本量/个50294257
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    Xuan-fu LI, Dong HUANG, Xue QU, Jun-feng ZHU. Effects of different harvesting ways on grain loss:Based on the field survey of 3251 rural households in China[J]. Journal of Natural Resources, 2020, 35(5): 1043

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    Paper Information

    Category:

    Received: Apr. 11, 2019

    Accepted: --

    Published Online: Oct. 17, 2020

    The Author Email: ZHU Jun-feng (zhujunf501@sina.com)

    DOI:10.31497/zrzyxb.20200503

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