摘要
为给榆林沿黄土石山区困难立地造林提供技术支撑,以侧柏为材料,在吴堡县进行了以栽后根部浇灌GGR溶液加覆膜为处理,常规方法为对照,以栽植成活率、保存率,植株高度、地径、生物量等为指标的比较试验,结果为处理后侧柏3 a生营养钵苗栽植成活率为96.8%、保存率为92.8%,显著高于对照(成活率72.0%、保存率64.2%),可满足生产需求(保存率85%);处理的侧柏幼树树高,地径,地上、地下及总生物量年增长量都显著高于对照。根部浇灌GGR溶液加覆膜是一项可显著改善造林成效的实用技术,建议在当地及生态环境相近地区推广。
To technically support the afforestation in loess and stony mountains in Yulin, cypress(Platycladus orientalis) trees were tested by planting and then irrigating GGR solution, with mulching afterwards. Other normal planting method as the control test to find out the difference in survival rate, retention rate, plant height, ground diameter and biomass. The result showed that 3 a cypress trees with GGR treatment have good performance, with survival rate reaching 96.8% and retention rate reaching 92.8%, significantly above the control which are 72.0% and 64.2% respectively. The height, ground diameter, biomass under and above ground all have significant result over the control. GGR solution with mulching is a pragmatical technique suitable for afforestation on loess plateau.
作者
王建新
WANG Jian-xin(Forestry Extension Center of Yulin City,Yulin,Shaanxi 719000)
出处
《陕西林业科技》
2022年第2期84-86,89,共4页
Shaanxi Forest Science and Technology
基金
2021年中央财政林业科技推广项目(SLTG[2021]10号)。
关键词
黄土石山地
侧柏
成活率
生长量
榆林
Loess and stony mountains
Platycladus orientalis
survival rate
growth increment
Yulin
