四倍体刺槐不同栽培模式适应性评价

THE ADAPTIVE EVALUATION ON DIFFERENT CULTIVATION MODELS OF ROBINIA PSEUDOACACIA

本文采用对比试验的方法,对四倍体刺槐不同栽培模式人工林的物候、生长量、林地土壤含水量进行了分析。结果表明:四倍体刺槐在冠幅、新梢长、叶面积3个生长指标大于本地刺槐,适宜作绿肥植物,且以5月20日至6月26日之间刈割较为适宜。造林密度2 475株/hm2的四倍体刺槐与本地刺槐混交栽培模式林木生长适中,全年需水量较少,在研究地可广泛应用;造林密度825株/hm2的四倍体刺槐纯林栽培模式林木生长较快,全年需水量适中,可在研究地水分条件较好的地块应用;造林密度3 300株/hm2的四倍体刺槐纯林栽培模式全年需水量较多,不宜在研究地应用。

Adopting the compare experiment, the phonological, growth and soil water content of Robinia pseudoacacia were analyzed, The result indicated that the crown, new shoot and leaf area was bigger than the located Robinia pseudoacacia, and it was fit to make the green manure and also mow it in the good time of May 20 to June 26. In the mix forest model Robinia pseudoacacia and located Robinia pseudoacaciathe cultivated by the density of 2475 stock/hm^2 was grew moderate, the water demand is lower ,which can be widely used in experiment plot. When the density was 825stock/hm^2, the pure plantation of Robinia pseudoacacia grew faster, the water demand was moderate. It can be planted in the suitable soil water content area. when the density of pure plantation of Robinia pseudoacacia was 3300stock/hm^2 ,it demand more water ,which shouldnt be fitted to use in the experiment area.