Arid Zone Research ›› 2024, Vol. 41 ›› Issue (5): 843-855.doi: 10.13866/j.azr.2024.05.12
• Ecology and Environment • Previous Articles Next Articles
SANG Yiming1,2(), XIN Liangjie1()
Received:
2023-08-31
Revised:
2023-12-19
Online:
2024-05-15
Published:
2024-05-29
SANG Yiming, XIN Liangjie. Changes of farmland use intensity in the YLN region from 2000 to 2020[J].Arid Zone Research, 2024, 41(5): 843-855.
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Tab. 1
Evaluation index system and weight of farmland use intensity in the YLN region"
目标层 | 准则层 | 权重 | 指标层 | 权重 | 指标说明 | 单位 |
---|---|---|---|---|---|---|
耕地利用集约度 | 劳动力投入强度 | 0.186 | 地均劳动力投入(+) | 0.055 | 农业劳动力/耕地面积 | 人·hm-2 |
农资投入强度 | 0.207 | 地均农业机械投入(+) | 0.126 | 农业机械总动力/耕地面积 | kW·hm-2 | |
地均化肥投入(+) | 0.042 | 化肥施用量/耕地面积 | kg·hm-2 | |||
地均农药投入(+) | 0.054 | 农药使用量/耕地面积 | kg·hm-2 | |||
地均地膜投入(+) | 0.199 | 地膜使用量/耕地面积 | kg·hm-2 | |||
技术投入水平 | 0.236 | 农业科技进步贡献率(+) | 0.070 | 农业总产值增长率-物质费用产出弹性×物质费用增长率-劳动力产出弹性×劳动力增长率-耕地产出弹性×耕地增长率。物质费用、劳动力和耕地的产出弹性,分 别取0.55、0.20和0.25 | 无量纲 | |
开发利用水平 | 0.371 | 复种指数(+) | 0.028 | 农作物总面积/耕地面积 | 无量纲 | |
灌溉指数(+) | 0.023 | 有效灌溉面积/耕地面积 | 无量纲 | |||
垦殖系数(+) | 0.035 | 耕地面积/土地总面积 | 无量纲 | |||
机耕化率(+) | 0.027 | 机耕面积/耕地面积 | 无量纲 | |||
设施农业占比(+) | 0.341 | 设施农业面积/耕地面积 | 无量纲 |
Tab. 2
Index descriptive statistics"
指标 | 年份 | 平均值 | 中位数 | 最小值 | 最大值 | 标准差 |
---|---|---|---|---|---|---|
地均劳动力投入 | 2000年 | 1.83 | 1.97 | 0.95 | 2.76 | 0.55 |
2020年 | 0.98 | 0.82 | 0.43 | 2.09 | 0.36 | |
地均农业机械投入 | 2000年 | 4.01 | 1.85 | 0.50 | 35.05 | 7.62 |
2020年 | 26.34 | 19.69 | 7.16 | 90.43 | 21.73 | |
地均化肥投入 | 2000年 | 81.61 | 71.16 | 20.83 | 152.23 | 35.68 |
2020年 | 112.53 | 121.56 | 16.03 | 311.45 | 78.86 | |
地均农药投入 | 2000年 | 2.03 | 1.42 | 0.00 | 10.21 | 2.29 |
2020年 | 0.88 | 0.38 | 0.00 | 3.72 | 0.98 | |
地均地膜投入 | 2000年 | 0.38 | 0.08 | 0.00 | 4.29 | 0.98 |
2020年 | 3.28 | 0.54 | 0.13 | 17.01 | 5.21 | |
农业科技进步贡献率 | 2000年 | 0.01 | 0.04 | -0.19 | 0.15 | 0.09 |
2020年 | 0.16 | 0.08 | -0.04 | 0.56 | 0.18 | |
复种指数 | 2000年 | 0.50 | 0.46 | 0.36 | 0.72 | 0.09 |
2020年 | 0.32 | 0.37 | 0.05 | 0.40 | 0.09 | |
灌溉指数 | 2000年 | 0.41 | 0.43 | 0.02 | 0.67 | 0.15 |
2020年 | 0.43 | 0.43 | 0.27 | 0.55 | 0.07 | |
垦殖系数 | 2000年 | 0.04 | 0.04 | 0.01 | 0.09 | 0.02 |
2020年 | 0.04 | 0.04 | 0.01 | 0.09 | 0.02 | |
机耕化率 | 2000年 | 0.13 | 0.08 | 0.00 | 0.42 | 0.14 |
2020年 | 0.26 | 0.27 | 0.00 | 0.49 | 0.14 | |
设施农业占比 | 2000年 | 0.04 | 0.00 | 0.00 | 0.55 | 0.12 |
2020年 | 0.01 | 0.00 | 0.00 | 0.14 | 0.03 |
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