陕西省耕地转移对生态系统服务价值的影响
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丁振民, 姚顺波
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Effects of cultivated land transition on ecosystem service value in Shaanxi Province of China
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Zhenmin DING, Shunbo YAO
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表6 模型结果 |
Table 6 Results of the models |
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lnmesv | 模型(1)直接效应 | | 模型(2)调节效应 | | 模型(3)门槛效应 | 系数 | 标准误差 | 系数 | 标准误差 | 系数 | 标准误差 | urban | -0.976*** | 0.197 | | -1.588*** | 0.312 | | | | urban_1 (pfgc<0.013) | | | | | | | -2.782*** | 0.166 | urban_2 (0.013<=pfgc<0.837) | | | | | | | -0.617*** | 0.142 | urban_3 (pfgc>=0.837) | | | | | | | 2.504 | 2.866 | pfgc | 1.472*** | 0.211 | | 1.479*** | 0.428 | | | | pu | | | | 11.600*** | 2.502 | | | | lntemp | -0.127 | 0.085 | | -0.459* | 0.272 | | -0.679*** | 0.095 | lnrain | 0.063 | 0.054 | | 0.069 | 0.070 | | -0.078 | 0.049 | slop | 0.223*** | 0.031 | | 0.180*** | 0.058 | | 0.089*** | 0.009 | aspect | 0.124*** | 0.036 | | 0.067 | 0.077 | | 0.011*** | 0.003 | water | 15.804*** | 1.561 | | 15.478*** | 4.717 | | 12.664*** | 1.244 | 控制个体 | YES | | YES | | — | _cons | 6.812*** | 0.519 | | 8.560*** | 1.486 | | 12.696*** | 0.513 | R2 | 0.9616 | | 0.9641 | | — |
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