This paper evaluates the surface water quality with category comprehensive index method on Chaobai River、Baoqiu River and Ju River of Sanhe City,the 10 pollute targets of 12 monitor spots of three rivers are chosen in low water season of March and May,the results of evaluation showed that the surface water quality of eight monitors was is under Ⅴgrade,two of the is Ⅳgrade,another two is Ⅱ grade.

According to the multi-objective decision theory,the class synthetic exponent method has been set up and used to evaluate the water quality in the ideal point model.

Methods Take the elementary theory of balanced scorecard as the instruction,uses the Delphi law and the analytic hierarchy process,to establish the target system and determined all levels of target weight,and uses the weighted composite index method to carry on the quality synthetic evalua.

In this article, we use composite index method and systematic model method to compre-hensively appraise land resourses in Mianyang city, and divide 203 appraisable units (township ortown) into 8 grades.

[Methods]Composite index method was adopted to perform comprehensive evaluation on 16 medical institutions.

Identification and evaluation of core authors of Acta Editologica by comprehensive index method;

The identification and evaluation of kernel authors of Library and Information Service with comprehensive index method;

The 5 grade and 100 score method is used to get the quantitative scores of evaluated index and the integrated index method is used to calculate the vulnerability scores.

,integrated index method,loc.