基于双栏模型的三江平原湿地生态保护价值评估
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敖长林, 董育宁, 焦扬, 张昆, 董利娜
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Ecological value evaluation of the Sanjiang Plain Wetland based on the Double-Hurdle Model
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AO Changlin,DONG Yuning,JIAO Yang,ZHANG Kun,DONG Lina
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表3 变量定义及描述统计 |
Table 3 Variation definition and summary statistics |
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变量 | 选项 | 定义 | 人数 | 比例/% | 均值 | 正支付率/% | 性别SEX | 男 | SEX=1 | 494 | 53 | 0.53 | 62.0 | | 女 | SEX=0 | 433 | 47 | | 69.8 | 年龄AGE/岁 | <20 | AGE=1 | 46 | 5 | 2.98 | 76.7 | | 21~30 | AGE=2 | 333 | 36 | | 69.1 | | 31~40 | AGE=3 | 241 | 26 | | 63.9 | | 41~50 | AGE=4 | 234 | 25 | | 65.4 | | 51~60 | AGE=5 | 50 | 5 | | 44.9 | | >60 | AGE=6 | 23 | 2 | | 65.2 | 教育EDU | 小学及以下 | EDU=1 | 29 | 3 | 3.60 | 58.3 | | 初中 | EDU=2 | 110 | 12 | | 49.5 | | 高中 | EDU=3 | 234 | 25 | | 72.1 | | 大学 | EDU=4 | 380 | 41 | | 71.2 | | 研究生以上 | EDU=5 | 174 | 19 | | 56.0 | 收入INC/万元 | <0.3 | INC=1 | 278 | 30 | 3.69 | 67.0 | | 0.3~0.6 | INC=2 | 114 | 12 | | 61.6 | | 0.6~1.2 | INC=3 | 106 | 11 | | 51.9 | | 1.2~2.4 | INC=4 | 127 | 13 | | 64.0 | | 2.4~3.6 | INC=5 | 91 | 10 | | 71.9 | | 3.6~4.8 | INC=6 | 58 | 6 | | 78.2 | | 4.8~6.0 | INC=7 | 62 | 7 | | 72.9 | | >6.0 | INC=8 | 91 | 10 | | 65.9 | 了解程度 | 非常了解 | ACK=5 | 69 | 7 | 2.98 | 70.3 | | 比较了解 | ACK=4 | 201 | 22 | | 73.0 | | 一般了解 | ACK=3 | 347 | 37 | | 68.4 | | 不太了解 | ACK=2 | 259 | 28 | | 59.1 | | 完全不了解 | ACK=1 | 51 | 6 | | 40.2 | 游玩次数 | 没去过 | TIM=0 | 471 | 51 | 0.82 | 56.9 | | 1次 | TIM=1 | 236 | 25 | | 72.7 | | 2次 | TIM=2 | 115 | 12 | | 79.1 | | 3次 | TIM=3 | 105 | 11 | | 75.2 |
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