The amounts and forms of phosphorus(P) in surface sediments of Haihe River,Tianjin,North China,were examined using a sequential chemical extraction procedure.Fi
To investigate the effect of elevated O3 on the accumulation of main secondary metabolites in leaves of Ginkgo biloba L.,four-year-old trees were exposed in ope
The principle and technique were reported here to produce lignin-based sand stabilizing material (LSSM) using extracted lignin from black liquor of straw paper