In Response To The North Of Shanxi Province Severe Saline-alkali Soil And Elaeagnus Angustifolia To Improver

Supported by national public welfare industry special funds "research on integration technology of severe saline-alkali soil vegetation restoration in the north of Shanxi province", combined with severe difficult saline-alkali land improved in the north of Shanxi province, low efficiency of land utilization, vegetation recovery efficiency and low background. The article uses furfural residue, gypsum, black alum material for soil improvement to Elaeagnus angustifolia species as main planting, use field experiment, laboratory chemical analysis, statistical analysis of a combination of methods to explore and analyze the physical and chemical properties of severe saline, angustifolia element content in various organs and protective enzyme system in response to the results of the three modifiers: ①By comparing field improved test, furfural residue, gypsum, black alum to the soil pH, the influence of water content and electrical conductivity, the results show that:the L3 of gypsum effects on soil pH is the most significant; the L2 of black alum on soil moisture effects is the most significant; the L1 of black alum effects on improving soil conductivity is the most significant. ②Through the laboratory results under nine different soil trace elements (Cu, Zn, Fe, Mg) content of chemical analysis showed that:the L3 of gypsum in soil improve of Cu2+, Mg2+ content changes the most obvious effective; the L3 of black alum and L3 of furfural residue on the soil content of Fe2+, Zn2+ in the role of the most obvious.③Different organs SOD, POD, CAT of angustifolia response differences gypsum content, furfural residue, black alum significant results showed that:SOD, POD, CAT of the root and leaf content on the black alum response modifier works best significantly; stems SOD, POD, CAT response gypsum content on the most significant effect.④ The content of Cu, Fe, Mg of angustifolia in the whole growth cycle in response to the different effects of the black alum, furfural residue, gypsum is not significant; the most obvious use of furfural residue is L3 effects on content of Zn.