基于AHP-模糊综合评价法的沙棘涵养水源功能评价

Assessment of Water Conservation Function of Seabuckthorn Based on AHP-Fuzzy Comprehensive Theory

采用专家咨询、现场调查和文献查阅相结合的方法并参考森林生态服务功能评估规范,构建了沙棘涵养水源功能评价的指标体系,并参照其他植被涵养水源功能参数及经验公式计算等对指标体系进行等级划分。将层次分析法和模糊综合评价模型相结合,对晋、陕、蒙砒砂岩区沙棘涵养水源功能进行评价。结果表明,沙棘在砒砂岩区涵养水源方面发挥了良好的生态服务功能,其大面积种植对于改善砒砂岩区的生态环境起到了显著作用,具有良好的开发潜质和前景。研究显示,该评价方法可操作性较好,结果客观可信,具有一定的推广价值和应用性。

The assessment index system of water conservation function of seabuckthorn was constructed based on expert advices,field investigation,literature reviewing and specifications for assessment of forest ecosystem services.Parameters of service function and empirical formula about other plants were used for the classification of the index system.The analytic hierarchy process（AHP） and fuzzy comprehensive evaluation model then was used for the water conservation function of seabuckthorn in the soft rock region.The results indicated that seabuckthorn played good service function in water conservation,and the large area seabuckthorn planting would be a good way to improve the ecological environment in the soft rock region.Seabuckthorn had good development potential.The study also showed that the method was well operational,and the assessment result was objective and credible.It had a certain promotional value and application.