辽西半干旱山地刺槐人工林生长调查

Growth investigation of Robinia pseudoacacia plantations in semiarid mountainous lands in western Liaoning

通过对北宁市山地刺槐人工林立地条件、生长规律及生态效益等调查,结果表明,在类似北宁生态条件的半干旱地区的山地,适宜于培养小径级刺槐人工林;造林地要选择在阳坡、半阳坡、山中下腹土层较厚的地块;造林前需要整地;这些地区营造刺槐人工林,有助于保持水土,改良土壤,促进造林地植被变化,恢复和改善生态环境,减少病虫危害。

Surveyes were conducted regarding the site conditions,growing rhythms and ecological benefits of Robinia pseudoacacia plantations on mountainous lands in Beining. The results showed that: the semiarid mountainous lands resemble to the ecological conditions in Beining were suitable to cultivation of small - diameter - sized Robinia. pseudoacacia plantations. Afforestation fields should be chosen at such places as sunny slope, semi - sunny slope and middle and lower parts of mountains where soil layers were thick; soil preparation might be done before afforestion; Robinia pseudoacacia plantations planted in these areas were helpful to conservation of soil and water, amelioration of soil, promotion the changes of vegetation in afforestation lands, rehabilitation and improvement of ecological environment and curbing the insects and pests.