Rapid ecotoxicological assessment of heavy metal combined polluted soil using canonical analysis

作     者：CHEN Su-hua, ZHOU Qi-xing, SUN Tie-heng, LI Pei-jun (Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. 

作者机构：Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2003年第15卷第6期

页      面：854-858页

核心收录：

学科分类：12[管理学] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 120405[管理学-土地资源管理] 

基　　金：TheNationalKeyFoundationProjectofResearchandDevelopmentProgrammeofChina(No .G19990 1180 8)  theNationalScienceFundationforDistinguishedYoungScholars(No .2 0 2 2 5 72 2 )byNSFC  andaspecialgrantfromScientificandSocialPracticeforGraduatesofChineseAcademyof 

主　　题：heavy metal combined pollution ecological toxicity canonical analysis 

摘      要：Quick, simple to perform, and cheap biomarkers were combined in a rapid assessment approach to measure the effects of metal pollutants, Cu, Cd, Pb and Zn in meadow burozem on wheat. Analysis of orthogonal design showed that the significant zinc factor indicated both the inhibition rate of shoot mass and that of root elongation were affected by zinc(P0.05 and P0.01, respectively). The first toxicity canonical variable (TOXI), formed from the toxicity data set, explained 49% of the total variance in the toxicity data set; the first biological canonical variable(BIOL) explained 42% of the total variation in the biological data set. The correlation between the first canonical variables TOXI and BIOL (canonical correlation) was 0.94 (P0.0001). Therefore, it is reliable and feasible to use the achievement to assess toxicity of heavy metal combined polluted soil using canonical analysis. Toxicity of soil combined polluted by heavy metals to plant community was estimated by comparing the IC 50 values describing the concentration needed to cause 50% decrease with grow rate compared to no metal addition. Environmental quality standard for soils prescribe that all these tested concentration of heavy metals in soil should not cause hazard and pollution ultimately, whereas it indicated that the soils in second grade cause more or less than 50% inhibition rates of wheat growth. So environmental quality standard for soils can be modified to include other features.