Abstract: The influence of aluminum in different concentration on the growth of Pisum sativum soot and bud under the acid condition was studied. The results showed that aluminum remarkably restrained P. sativum root and bud from growing. The initial concentration of aluminum poisoning cell split of P. sativum root top was 1mg·L^-1 . As aluminum inducing the various changes have taken place in the chromosome of P. sativum root top, aluminum initial concentration being 0.5mg·L^-1 . Between aluminum restraining P. sativum root and bud from growing and this plant absorbing Ca and Mg there is not clearly relation under its less concentration (≤1 5mg·L^-1).

Key words: Wetlands, Ecological evaluation, Analytic hierar chy process, Ecosystem service, Ecological protection function