摘要
经过１０年的造林试验表明：只要采取适地适树、全面整地、及时松土、适当密植、乔灌结合等合理的造林措施，在ｐＨ值８．５～９．６的苏打盐碱地上造林，生长良好，可以郁闭成林。据观测，在苏打盐碱土上适应的造林树种有小黑杨、旱柳、家榆、白榆、黑杨、糖槭、水曲柳、怪柳、沙棘、丁香、沙枣等。小黑杨可以在除条件极恶劣的碱斑以外的各种苏打盐碱地上造林。并生长良好。根据生长量和生物量调查。小黑杨最高，９年生蓄积可达１００ｍ￣３／ｈａ，地上部分生物量可达２８．７ｔ／ｈａ。
years experiment, show that if Some suitable treaments,such as right tree onright site,overall preparation of the land,timely loosen soil, rational close planting and combina-tion of tree with shrub and herb are used,plantations can be established on the coil of tala-saline-alkali,with the soil condition of pH-value 8.5～9.5.By the observition,Populussimonigra,Salixmatsudans,Ulmus pumila,Populus nigra,Acer negundo,Fraxinus mandshurica,Tamarix chinesis,Hippophaerhrmmoides,Syringa onlata and etc.can be planted on the soilof soda-saline-alkali.Populus simonigragrows very well on all kinds of soda-saline-alkali Soils except for the alkali spot with the worst seilconditions, From the results of investigation of increment and biomass,Populus simonigra is thehighest of all,the volume in 9 years can reach 100m￣3/ha,the biomass(abeve ground)can reach28.7 ton/ha.
关键词
苏打盐碱地
造林
小黑杨
生长量
Soda-saline-alkali soil,Plantation,Populus simonigra,Increment
