基于HDE的流域生态系统健康评价方法及应用

Method and Application of Basin Ecosystem Health Assessment Based on HDE

针对清水河流域生态健康评价,选取原州城区、寨科乡、开城镇3个监测断面的8项指标的监测数据,在和谐论定量计算的基础上,采用和谐度方程(HDE)评价方法计算出各指标的子和谐度,运用层次分析法求出各指标的权重,利用加权平均法算出多指标的和谐度以完成对清水河流域生态系统健康的评价。研究结果表明,和谐度为0.5,评价结果为一般,符合实际情况。将结果与其他方法所得结果进行对比分析,验证了和谐度方程评价方法的简便性、灵活性,可在实际工作中推广应用。

According to the ecological health assessment of Qingshui river basin, the monitoring data of eight indicators of three monitoring sections of Yuanzhou district, Zhaike township and Kaicheng Town were selected. Based on the quantitative calculation of harmony theory, the method of harmony degree (HDE) evaluation was adopted. The sub-harmonic degree of each index is calculated, and the weight of each index is obtained by using the analytic hierarchy process. The weighted average method is used to calculate the harmony degree of multiple indicators to complete the evaluation of the ecosystem health of the Qingshui river basin. The resulting harmony is 0.5, and the evaluation results are general and in line with the actual situation. Comparing the results with the results obtained by other methods, the simplicity and flexibility of the evaluation method of the harmony equation are verified, which can be popularized and applied in practical work.