基于盲数理论的河流健康评价

在介绍盲数理论的基础上，对河流健康评价中所选取的指标值进行盲数化处理，进而利用盲数运算法则和判别模式对各指标进行评价等级判定，得到各指标隶属于各评价等级的可能性。将该方法与传统的综合指数法相结合，构建基于盲数理论的河流健康评价模型，并将其应用于通榆河健康评价，从物理特征、环境特征、生态功能、服务功能等方面构建评价指标体系，识别河流健康状况。结果表明，通榆河的健康等级为“中”，主要问题为水质较差和生物多样性偏低。

River health assessment based on blind number theory

Based on the blind number theory , the values of selected indicators in river health assessment were transformed into blind numbers in order to assess the ranks of the indicators with the blind number algorithm and judging mode.As a result, the possibilities of the indicators belonging to each rank were obtained .A river health assessment model was constructed based on the blind number theory with the combination of the proposed method and traditional comprehensive index method and was applied to the Tongyu River ’ s health assessment .The assessment index system was established from the aspects of physical features , environmental features , ecological functions , and service functions , in order to assess the river ’ s health .The assessment results show that the health of the Tongyu River was at a medium level and poor water quality and low biodiversity were the main problems of the river.