近年来,江汉平原和洞庭湖地区,相继大面积引种推广了I—72/58,I—69/55,I—63/51等意大利杨树新无性系简称意杨,在江河洲滩、湖滩、低洼地营造了速生丰产林,其中江汉,平原就营造了42.56万亩。该地区造林潜力很大,仅江汉平原就具有长江沿岸的江河外滩、低洼地200余万亩。林业部计划“七·五”期间在湖北、江西、湖南、江苏、安微五省营造意杨500万亩,每年营造100万亩。目前,江汉平原已有一批县市纳入国家速生丰产林基地建设行列,并即将付诸实施。本文针对江河滨湖地区“富水”因子,进行了四年的试验观测,以探索汛期淹水、渍水、地下水诸因子对意杨生长 In recent years, the Jianghan Plain and the Dongting Lake area have successively introduced and popularized poplar climbers such as I-72/58, I-69/55 and I-63/51, Low-lying to create a fast growing forest, of which Jianghan, plain to create 42.56 acres. There is a great potential for afforestation in this area. Only the Jianghan Plain and the low-lying land with more than 200 million mu of the Yangtze River are only covered by the Jianghan Plain. During the “Seventh Five-Year Plan”, the Ministry of Forestry plans to build 5 million mu of Italian poplar in Hubei, Jiangxi, Hunan, Jiangsu and Anwei provinces, and will build 100 million mu each year. At present, a number of counties and cities in the Jianghan Plain have been included in the ranks of the national fast-growing and high-yield forest base and will be put into operation soon. In this paper, the “rich water” factor of the riverside and lakes region was tested for four years to explore the effects of flooding, waterlogging and groundwater in flood season on the growth of Yaying