The sample were measured with X-ray Diffraction (XRD), X-ray photoelectron spectroscopy, Raman spectrum, FTP-3000 infrared band spectral photometer, WS-92 testing apparatus of adhesion and FY-03E testing apparatus of salt and fog.
The correlation coefficient between Na~+ and Cl~-is 0.92,which indicates that the dominant soluble salt is NaCl,followed by Na_2SO_4,CaCl_2 and MgCl_2.Strong correlation between electrical conductivity(EC1:5) and concentration of Cl~-,Na~+ and salt content of soil were found(the correlation coefficients are 0.98,(0.95) and 0.989,respectively).
RESULTS:Herbicide phosphinothricin completely suppressed the growth and proliferation of Dunaliella salina cells in liquid medium at a dose of 6.0 mg/L and 8.0 mg/L in solid medium. Transformants were gained.
To determine the free proline quantitatively, a mmodified Paquin's method was adopted. The proline levels in spartina anglica increase along with the raise of salinity. The threshhold value was found to be about 0.3 M NaCl, being somewhat lower than that of Spartina alterniflora and Spartina patens. The pattern of proline accumulation in S. anglica was different from that of Triglochin maritima or Aster tripolium. The time course of its accumulation Was also examined.
To determine the free proline quantitatively, a modified Paquin's method was adopted。The proline levels in spartina anglica increase along with the raise of salinity. The threshhold value was found to be about 0.3 M NaCl, being somewhat lov/er than that of Spariina alterniflora and Spartina patens.Tlie pattern of proline accumulation in S.anglica was different from that of Triglochin maritima or Aster tripolium.The time course of its accumulation was also examined.
The formation and stable condition of ettringite were investigated by adding differ-ent quantities and different kinds ol CaSO_4 into C_(12)A_7.The composition of liquid phaseand the products of solid phase were also studied. From the chemical analysis of the liquid phase,it was found that the concentration of[SO_3]and[CaO]in solution had decreased suddenly.If gypsum is added,the CaO concentra-tion decreases from 1.0mg/ml to 0.5mg/ml, and SO_3 from 1.0mg/ml to 0.1mg/ml, whilethe concentration of [Al_2O_3] i...