Efficiency Measurement and Influencing Factors of Ecological Compensation: A Case Study from Wuqi and Zhidan on the Loess Plateau
Efficiency Measurement and Influencing Factors of Ecological Compensation: A Case Study from Wuqi and Zhidan on the Loess Plateau
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DOI：
10.1007/s11053-021-09947-w
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发表时间：
2021-09
影响因子：
5.4
通讯作者：
Yu Zhang;Daojun Zhang
中科院分区：
文献类型：
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作者：
Yu Zhang;Daojun Zhang
在生态工程中，测量和评价生态补偿的植被恢复效率具有重要意义。然而，生态补偿的产出效率尚不明确，其影响因素有待进一步探讨。本研究以中国退耕还林工程的两个先行县吴起和志丹为研究区，采用遥感植被指数反映植被覆盖水平，并采用地理加权回归模型对退耕还林工程的VREoEC进行测度。然后，采用经典多元线性回归模型探讨VREoEC的影响因素。结果表明：(1)研究区总体植被覆盖度显著提高的同时，VREoEC表现出明显的空间趋势和累积，且受区域水热分布的影响；(2)当地地形、小气候条件、乡村公路密度、分类公路、生态补偿强度等因素影响了VREoEC；(3)由于当地的自然和社会经济条件会影响到VREoEC，因此需要因地制宜地制定生态补偿措施。因此，本研究提供了方法上的参考和相应的政策建议。
It is of great significance to measure and evaluate vegetation restoration efficiency of ecological compensation (VREoEC) in an ecological project. However, the output efficiency of ecological compensation is still unclear, and its influencing factors need further exploration. In this research, Wuqi and Zhidan, two pioneer counties in China's Grain for Green (GFG) project, were taken together as the study area, and remote sensing vegetation indices were used to reflect the vegetation coverage level, and the geographically-weighted regression model was applied to measure the VREoEC in the GFG project. Then, the classic multiple linear regression model was used to explore the influencing factors of VREoEC. The findings were as follows: (1) while the overall vegetation coverage in the study area was improved greatly, the VREoEC showed noticeable spatial trend and accumulation, and suffered from regional water-heat distribution; (2) local terrain, micro-climate conditions, rural roads density, classified highway, and intensity of ecological compensation affected the VREoEC; and (3) because local natural and socio-economic conditions can affect the VREoEC, ecological compensation measures need to be formulated according to local conditions. Thus, this study provides a methodological reference and corresponding policy suggestions.