基于能值改进模型的红米与烤烟作物系统可持续性评价——以贵州省盘州市为例
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孙凯, 梁龙, 李仲佰
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Sustainability Evaluation of the Red Rice and Flue-Cured Tobacco Crop System Based on the Improved Emergy Model——A Case Study of Panzhou City, Guizhou Province
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Sun Kai, Liang Long, Li Zhongbai
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表3 2种典型农作系统的原始数据及能值结果
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Table 3 Raw data and emergy calculation results of the two typical crop systems
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项目
Item | 能值转化率
Unit emergy value
(sej/unit) | 原始数据Raw data | | 能值Emergy value | 红米
Red rice | 烤烟
Flue-cured tobacco | 红米
Red rice | 烤烟
Flue-cured tobacco | 能值投入
Emergy inputs
(sej/hm2) | 可更新自然资源 | – | – | – | | 1.12E+17 | 1.12E+17 | | 太阳能 | 1.00E+00 | 1.54E+13 | 1.54E+13 | | 1.54E+13 | 1.54E+13 | | 风能 | 1.86E+03 | 1.55E+08 | 1.55E+08 | | 2.89E+11 | 2.89E+11 | | 雨水化学能 | 2.35E+04 | 4.76E+12 | 4.76E+12 | | 1.12E+17 | 1.12E+17 | | 不可更新自然资源 | – | – | – | | 2.20E+15 | 2.20E+15 | | 表土损失能 | 7.94E+04 | 2.77E+10 | 2.77E+10 | | 2.20E+15 | 2.20E+15 | | 不可更新工业辅助能量 | – | – | – | | 2.08E+14 | 1.80E+15 | | 氮肥 | 4.83E+09 | – | 1.27E+05 | | – | 6.14E+14 | | 磷肥 | 4.96E+09 | – | 1.27E+05 | | – | 6.31E+14 | | 钾肥 | 1.40E+09 | – | 1.27E+05 | | – | 1.78E+14 | | 柴油 | 8.41E+04 | 2.48E+09 | 4.09E+09 | | 2.08E+14 | 3.44E+14 | | 农药 | 2.06E+09 | 1.20E+02 | 5.70E+02 | | 2.47E+11 | 1.17E+12 | | 农膜 | 4.83E+08 | – | 7.50E+04 | | – | 3.62E+13 | | 可更新生物有机能 | – | – | – | | 1.12E+16 | 8.33E+15 | | 劳动力 | 5.73E+06 | 9.83E+08 | 1.42E+09 | | 5.63E+15 | 8.12E+15 | | 种子 | 2.60E+04 | 2.15E+11 | 7.34E+09 | | 5.59E+15 | 1.91E+14 | | 有机肥 | 3.44E+06 | 5.25E+05 | 4.13E+06 | | 1.81E+12 | 1.42E+13 | | 总投入 | – | – | – | | 1.26E+17 | 1.24E+17 | 能值产出
Emergy outputs
(sej/hm2) | 农产品 | – | 1.08E+11 | 3.27E+10 | | 2.61E+16 | 6.55E+15 | | 碳排放 | 5.09E+07 | 1.17E+09 | 3.83E+06 | | 5.97E+16 | 1.95E+14 | | 碳固定 | 5.09E+07 | 2.56E+07 | 6.72E+06 | | 1.30E+15 | 3.42E+14 |
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