县域森林生态安全评价分析研究——基于湖北省29个县统计数据

Research on Forest Ecological Security Evaluation Analysis——Based on Statistic Data of 29 Counties in Hubei Province

文章在PSR模型的基础上,将响应作为压力层的逆指标建立森林生态安全评价指标体系,并引入生态区位系数作为灰色关联分析的参考数列进行指标赋权,选取湖北省重点生态功能区所在的29个区县,对其森林生态系统的安全状况进行评价分析。结果表明:29个区县中,鄂西北和鄂西南地区的森林生态安全水平要优于鄂东地区;鄂东地区的森林生态系统承受的压力大于鄂西南和鄂西北地区,但通过增强森林生态建设和保护的力度可以缓解森林生态系统的压力,改善森林生态系统的安全状况。

Based on the PSR model, this paper established the forest ecological security evaluation index system by using the response as the inverse index of the pressure layer, and introduced the ecological location coefficient as the reference index of the gray relational analysis to carry on the index empowerment, and evaluated and analyzed the safety of forest ecosystems in 29 counties of the key ecological function area in Hubei Province. The results showed that： the status of forest ecological security of the counties in the northwest and southwest of Hubei was better than that in the east of Hubei, and the pressure of forest ecosystem in East of Hubei Province was greater than that in the northwest and southwest of Hubei Province. But the pressure of forest ecosystem could be relieved by strengthening forest ecology construction and protection for it as well as improving the safety of forest ecosystems.