关键词: 农村一二三产业融合, 农村一二三产业融合, 内涵特征, 动因机制, 问题对策, 文献综述, 展望

Abstract: In order to research the differences in the resistance of varieties of trees, the Acer truncatum Bunge, Lagerstroemia indica L., Pteroceltis tatarinowii Maxim., Ulmus densa Litv. and Hibiscus syriacus L. seedlings were studied through the comparison of their drought tolerance, salt tolerance and moisture tolerance and a comprehensive evaluation on resistances of 5 varieties was given based on subordinate function values analysis. The results showed that: there was a deep difference in the resistance of varieties of trees, a comprehensive evaluation on the ability of resistance of the varieties of trees was Lagerstroemia indica L.> Ulmus densa Litv.>Hibiscus syriacus L.>Acer truncatum Bunge>Pteroceltis tatarinowii Maxim.