摘要
基于压力-状态-响应模型构建了平山县生态安全预警评价指标体系,并运用模糊综合评判方法,结合EXCEL程序,设计了生态安全预警评价计算模型。结果表明,平山县预警综合指数由2001年的6.451递减至2010年的4.938,其警情由轻警过渡到预警状态,生态安全水平呈逐年上升趋势,预测2015年、2020年、2025年的生态安全预警综合指数分别为4.676、4.354和4.268,均保持预警状态,说明平山县生态安全整体水平不断得到改善,生态系统步入良性循环。
Based on the Pressure-State-Response （PSR） model, an indicator system of ecological security assessment for earlywarning of Pingshan County is built, and a calculation model of ecological security for early-warning is designed by means of the fuzzy comprehensive assessment method, combined with EXCEL procedures. The results show that the composite index of ecological security for early-warning of Pingshan County reduced from 6. 451（mild warning） in 2000 to 4. 938（early warning） in 2010, the overall level of ecological security assuming an upward trend year after year, and that ecological security index for early-warning of Pingshan County in 2015, 2020, and 2025 will be respectively 4. 676,4. 354 and 4. 268,indicating that overall level of ecological security of the county has been constantly improved and the eco-system has been in a benign development.
出处
《国土资源科技管理》
北大核心
2013年第3期75-82,共8页
Scientific and Technological Management of Land and Resources
基金
河北省自然科学基金项目(D2010001952)
石家庄市科学技术研究与发展计划课题(10579415)
