Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia.
Institute for Applied Ecosystem Studies, USDA Forest Service, Northern Research Station, Rhinelander, WI, USA.
Int J Phytoremediation. 2020;22(4):436-450. doi: 10.1080/15226514.2019.1670616. Epub 2019 Oct 8.
We tested the growth and physiological responses of three poplar clones [ Bartr. ex Marsh. 'Bora', 'PE 19/66'; (Dode) Guinier 'Pannonia'] grown for 3 years on soils artificially contaminated with heavy metals, diesel fuel, and herbicides at the Experimental Estate of the Institute of Lowland Forestry and Environment (ILFE), University of Novi Sad, Serbia. Within three field blocks, clonal whole-plots were divided into seven subplots containing a non-contaminated control and six artificially-contaminated soil treatments: (1) 10.6 kg Cd ha, (2) 247 kg Cu ha, (3) 183.3 kg Ni ha, (4) 6,667 L diesel fuel ha, (5) 236 g Oxyfluorfen ha, and (6) 1,320 g Pendimethalin ha. Significant clone × treatment interactions governed growth and physiology throughout the study ( < 0.05), and the influence of inorganics organics varied with tree age. Heavy metals had a more substantial influence on growth and physiology as the trees matured, while diesel and herbicide treatments were most pronounced during the first growing season ( < 0.0001). Clones 'Bora' and 'PE 19/66' exhibited greater biomass than 'Pannonia', with trees growing in the control soils exhibiting 13.8 and 19.6 times greater biomass than 'Pannonia', respectively.
我们在塞尔维亚诺维萨德大学低地林业与环境研究所（ILFE）的实验庄园，对 3 年来一直生长在受重金属、柴油和除草剂人为污染土壤上的 3 个杨树无性系（Bartr. ex Marsh. 'Bora'、'PE 19/66'；（Dode）Guinier 'Pannonia'）的生长和生理反应进行了测试。在三个田间小区内，无性系全小区被分为 7 个小区，每个小区包含一个无污染对照和 6 个人为污染土壤处理：（1）10.6 kg Cd ha，（2）247 kg Cu ha，（3）183.3 kg Ni ha，（4）6667 L 柴油 ha，（5）236 g 氟氧氟草醚 ha，（6）1320 g 二甲戊灵 ha。整个研究过程中，无性系与处理之间存在显著的互作效应（<0.05），无机物和有机物的影响随树木年龄而变化。重金属对树木生长和生理的影响随着树木的成熟而增大，而柴油和除草剂处理在第一个生长季节最为明显（<0.0001）。无性系 'Bora'和'PE 19/66'的生物量大于 'Pannonia'，生长在对照土壤中的树木的生物量分别比 'Pannonia'大 13.8 倍和 19.6 倍。
