Response of the Growth and Health Status of Green Trees to Different Water-Saving Irrigation Modes in Tianjin
In this study,three common greening plants,Sophora japonica Linn.,Malus spectabilis and Fraxinus chinensis,were selected as research objects at the Liangtou Seedling Base of Jinghai District,Tianjin City.The experiment was conducted over a one-year period,during which time the three kinds of greening plants were irrigated using three different techniques:traditional diffuse irrigation technology,drip irri-gation water-saving technology,and clay root irrigation treasure water-saving integrated technology.The height,diameter,and diameter at breast height of the experimental trees were investigated and analysed to determine the effects of different irrigation methods on the growth of the trees.The results demonstrated that there was no significant effect of the irrigation methods on the height of the trees.However,drip irriga-tion and clay root irrigation treasure exhibited a tendency to increase the diameter and diameter at breast height of the plants compared with the control treatment of diffuse irrigation.This could be attributed to the satisfactory growth of the plants under these treatments.Subsequently,the impact of the implementation of water-saving technologies on the health evaluation indexes and comprehensive health evaluation of greening plants was clarified by measuring and analysing the tree health evaluation indexes under different irrigation treatments.The results demonstra-ted that neither drip irrigation nor clay treasure root irrigation had a significant impact on plant health evaluation indexes and comprehensive health evaluation.Furthermore,the health degree of the two plants,Sophora japonica Linn.and Fraxinus chinensis,was found to be higher than that of the irrigation control under drip irrigation and clay root irrigation treasure.
万方数据
维普
