ZHAO Xueqiao,YUAN Xiaohuan.Soil and Water Conservation of Twelve Under-forest Cover Plants[J].Research of Soil and Water Conservation,2017,24(04):66-69.
12种林下地被植物水土保持功能研究
- Title:
- Soil and Water Conservation of Twelve Under-forest Cover Plants
- Keywords:
- soil; anti-erodibility; permeability; cover plants; under-forest
- 分类号:
- S157.2
- 摘要:
- 为了研究林下地被植物的水土保持功能，分别运用室内茎叶浸泡法、静水崩析法、双环刀法对12种地被植物的茎叶截留雨水能力、土壤抗蚀性和渗透性进行了测定。结果表明：茎叶截留雨水最强的为拂子茅（Calamagrostis brachytricha）和玉带草（Phalaris arundinacea var. picta），超过自身质量的40%；玉带草、披针叶苔草（Carex lanceolata）和青绿苔草（Carex leucochlora）最大地提高了土壤抗蚀性；种植地被植物普遍地降低了土壤容重，提高了土壤的渗透系数，其中玉带草、狼尾草（Pennisetum alopecuroides）、拂子茅、青绿苔草、披针叶苔草、硫华菊效果极显著。青绿苔草、披针叶苔草、玉带草、拂子茅的综合水土保持功能较强，适合林下栽植。
- Abstract:
- To study the soil and water conservation function of cover plants on the forest floor, the water absorption of stem and leaves, the soil anti-erodibility and the soil permeability were measured with 12 cover plants using the indoor leaf immersion method, the hydrostatic collapse method, and the bicyclic knife method, respectively. The results showed that Calamagrostis brachytricha and Phalaris arundinacea var.picta had the highest water absorption over 40% of the stem and leaves weight; Phalaris arundinacea var.Picta, Carex lanceolata and Carex leucochlora best increased the soil anti-erodibility; the cover plants decreased the soil bulk density and generally increased the soil permeability, and the permeability of soils planted with Phalaris arundinacea var.picta, Pennisetum alopecuroides, C.brachytricha, C.leucochlora, C.lanceolata and Cosmos sulphureus extremely significantly differed from the control. Therefore, C.leucochlora, C.Lanceolata, P. arundinacea var.picta and C.brachytricha have the higher integrated soil and water conservation function and fit to be planted under the forest.
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备注/Memo
收稿日期:2016-06-14;改回日期:2016-06-27。
基金项目:北京市农林科学院科技创新专项（KJCX20140419）；北京市自然科学基金（6122010）
通讯作者:袁小环(1975-),女,安徽砀山人,博士,副研究员,主要从事园林植物生理生态研究。E-mail:sunringner@163.com