Nitrogen Addition Alleviates Cadmium Toxicity in Eleocarpus glabripetalus Seedlings

Cadmium (Cd) accumulation in soil is a serious form of heavy metal pollution affecting environmental safety and human health. In order to clarify the tolerance mechanisms Cd-contaminated soils under N deposition, changes plant growth, root architecture physiological characteristics Eleocarpus glabripetalus seedlings combined nitrogen (N) cadmium treatments were determined this study. The results indicated that Cd-induced negative effects inhibited growth E. through increased underground biomass allocation, affected transpiration respiratory processes, resulting decreased soluble sugars concentration leaves non-structural carbohydrates (NSC) roots. Root systems might play major role Cd absorption. stress restricted fine roots (<0.5 mm), uptake P. addition alleviated effect on improving system, increasing starch NSC contents total biomass. These findings have important implications for understanding underlying deposition arbor species.