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三年来在进行8个杨树新品种区域性试验的同时,对大多数杨树新品种试验林地的土壤进行了初步调查研究。现把调查结果摘要报告如下: 一、土壤类型 杨树新品种试验林地的土壤有徐淮平原上的两合土、淤土（底土为黄泛沉积物）、泡沙土、花斑盐土（含盐量<0.1％—0.2％旱季地表出现白色盐霜）、长江冲积平原上河道两岸的堆堤土壤、滨海地区的脱盐土和南京附近的死黄土,还有太湖地区新围垦的湖滩地（群众称铁屑黄泥土）。在两合土、淤土、泡沙土、堆堤土壤及脱盐土上只要管理得当杨树均能迅速生长,在死黄土和花斑盐土上也能生长。但在新围垦的铁屑黄泥土上如没有良好的灌溉排水条件则不宜栽植杨树（见表1）。
In the past three years, 8 poplar new varieties of regional trials, at the same time, most of the new varieties of poplar test forest soil were initially investigated. The summary of the survey results are reported as follows: First, the soil types of new varieties of poplar test forest soil Xuhuai plain two soil, silt (subsoil of the Yellow River sediments), sand soil, flower spot salt (salinity < 0.1% -0.2% white salt frost appeared on the surface of the dry season), bank embankments on both banks of the Yangtze River alluvial plain, desalinated soil in the coastal area and dead loess near Nanjing, and newly reclaimed lake beaches in the Taihu Lake region Yellow soil). In the two areas of soil, silt, sand, embankment dike soil and desalinated soil, as long as the well-managed poplar can grow rapidly, in dead loess and spotted salt soil can grow. However, it is not advisable to plant poplar trees on the newly reclaimed iron filings of yellow muddy soil without good irrigation and drainage conditions (see Table 1).