苗木供应相对过剩的有21种，分别是：红叶石楠、油茶、杨树、红花檵木、花椒、核桃、沙棘、金叶女贞、杜鹃、柠条锦鸡儿、苹果、刺梨、龙柏、长白落叶松、楸树、梨、金叶榆、紫穗槐、柽柳、红皮云杉、楠木。
There are 21 kinds of seedlings with relative surplus supply, namely: Photinia rubra, Camellia oleifera, poplar, Loropetalum chinense, Zanthoxylum bungeanum, walnut, seabuckthorn, Ligustrum lucidum, Rhododendron, Caragana Caragana, apple, Rosa roxburghii, Longbai larch, catalpa, pear, Ulmus pumila, Amorpha fruticosa, Tamarix, Picea koraiensis and Phoebe.
与2020年分析相比，杨树、花椒DG金属穿线管 不锈钢链板 隔离墩模具 检查井钢模具 流水槽模具 阶梯护坡模具 护坡砖模具 遮板模具 、核桃、沙棘、杜鹃、柠条锦鸡儿、苹果、龙柏供应依旧相对过剩，红叶石楠、油茶、红花檵木、金叶女贞、楸树、红皮云杉由供需基本平衡转为相对过剩，刺梨由供应严重不足转为相对过剩。
Compared with the analysis in 2020, the supply of poplar, Chinese prickly ash, walnut, seabuckthorn, Rhododendron, Caragana Caragana, apple and cypress is still relatively surplus, the supply of red leaf Heather, Camellia oleifera, Loropetalum chinense, Ligustrum lucidum, catalpa and red bark spruce has changed from basic balance of supply and demand to relative surplus, and the supply of Rosa roxburghii has changed from serious shortage to relative surplus.