Ⅰ—63、Ⅰ—69、Ⅰ—72三个黑杨派无性系,已经在洞庭湖“安家落户”,并开始广泛栽植于高地下水位区和常年有季节性洪水淹没的湖滩河洲,它们对水分的适应性很强,将有希望作为优良的耐水湿树种,用于低海拔水域造林。这三个黑杨派无性系是意大利杨树研究所,从美国或本国采集天然杂交的杨树种子选育而成的,原产地位于波河平原中部的卡萨里、蒙菲拉托。波河平原地势平坦,海拔100米以 Ⅰ-63, Ⅰ-69, ​​Ⅰ-72 three climber clones, have been settled in Dongting Lake, and began to widely planted in the high water table area and the perennial seasonal flooded lake beach, they Strong adaptability to water, promising as an excellent wetland wet tree for afforestation in low altitude waters. These three climatic climbers are poplar plants of the Italian Institute of Poplar, collected from natural hybrid poplar seeds collected in the United States or from their native places in Cassari and Monflatto, in the middle of the Poznań plain. Pohe plain flat, 100 meters above sea level